Author

Topic: New transaction accelerator on the market - mempool.space (Read 1114 times)

legendary
Activity: 3290
Merit: 16489
Thick-Skinned Gang Leader and Golden Feather 2021
Me, I've registered since November 29, 2023 and I just received the same email 3 days ago.
Seems like those who got early access are donators (or those who have contact) and everyone else are granted access only after when they officially released the service.
I received the same email, days after I read it's now publicly available. It's kinda pointless at the moment anyway, fees are very low and unless you got screwed by an exchange that used a low fee sending to another wallet you don't control, there's no point in using this accelerator now.
legendary
Activity: 2730
Merit: 7065
I was able to pay (google pay) their accelerator and finally got my transaction validated within 30 minutes.
Big lesson learned on this one.
Always have RBF enabled or use software that support RBF by default. If, for some reason, you are forced to send a transaction to some service without the RBF on, then make sure you pay a high enough fee to have the transaction confirm in a reasonable timeframe. If you don't want to check on the fees manually, use Mempool.Space's medium or high priority recommendations. It's too late now, but you paid for the acceleration much more than what you would have if you had followed the instructions that nc50lc and LoyceV provided.
legendary
Activity: 2870
Merit: 7490
Crypto Swap Exchange
Mempool Space has released some more information about their transaction acceleration feature. Besides paying over the Lightning Network, users can also pay with Google and Apple Pay and Cash App (depending on regions). Mempool Space has also released the names of their mining pool partners. Accelerated transactions will be pushed to Foundry, Mara, SBI Crypto, SpiderPool, and Ocean.

https://x.com/mempool/status/1817228273656500230


It's somewhat surprising they cooperate with Ocean, when that pool have low hashrate and only mined 6 blocks last month[1]. Although in terms of business, it's a shame they released it when average fee rate is currently below 5 sat/vB.

[1] https://ocean.xyz/dashboard
legendary
Activity: 2618
Merit: 6452
Self-proclaimed Genius
Interesting, after 5 months, I received an email from mempool telling I have access to their accelererator.
Me, I've registered since November 29, 2023 and I just received the same email 3 days ago.
Seems like those who got early access are donators (or those who have contact) and everyone else are granted access only after when they officially released the service.

On a side note, you could've cut cost on the accelerator's payment if you managed to replace the transaction using the given instructions above.
member
Activity: 153
Merit: 11
Interesting, after 5 months, I received an email from mempool telling I have access to their accelererator.
I was able to pay (google pay) their accelerator and finally got my transaction validated within 30 minutes.
Big lesson learned on this one.
legendary
Activity: 2730
Merit: 7065
Mempool Space has released some more information about their transaction acceleration feature. Besides paying over the Lightning Network, users can also pay with Google and Apple Pay and Cash App (depending on regions). Mempool Space has also released the names of their mining pool partners. Accelerated transactions will be pushed to Foundry, Mara, SBI Crypto, SpiderPool, and Ocean.

https://x.com/mempool/status/1817228273656500230
legendary
Activity: 2968
Merit: 3406
Crypto Swap Exchange
From what I can see right now, there are three options where you can pay between 51k and 60k sats.
This applies to most transactions, but it's worth noting that apart from their standard fee of 50k sats [roughly $30] + extra fee based on the chosen target rate, they're also charging another 50k sats for larger transactions [screenshot].

It's a good service, but right now it looks a bit misleading:
Quote
Reducing expected confirmation time to within ~9 minutes
~
Your transaction will be prioritized by up to 39.0% of miners.
The first statement is incompatible with the second statement.
Yeah, they make it sound like it's very likely that your transaction will get into the next block but at the same time only about 4/10 miners would prioritize it and include it in their block.
I agree with both of you, but I expect that percentage will rise soon [IIRC, their only partner used to be Foundry USA in the beginning, but they've managed to also partner with three more (MARA Pool, Spider Pool and SBI Crypto)].
- Looks like the next one is going to be "Ocean".
legendary
Activity: 2730
Merit: 7065
It's a good service, but right now it looks a bit misleading:
Quote
Reducing expected confirmation time to within ~9 minutes
~
Your transaction will be prioritized by up to 39.0% of miners.
The first statement is incompatible with the second statement.
Yeah, they make it sound like it's very likely that your transaction will get into the next block but at the same time only about 4/10 miners would prioritize it and include it in their block. It doesn't sound right. Not to mention how the fees you pay don't affect when the next block will be found. Regardless of if you pay 1 or 1000 sat/vByte, you might still have to wait 40 mins for a new block to be mined.

I like that they're promoting LN instead of shitcoins for this.
LN makes the most sense for this. It's good that they don't request regular L1 BTC to make you wait for two transactions to confirm on-chain.
legendary
Activity: 3290
Merit: 16489
Thick-Skinned Gang Leader and Golden Feather 2021
Mempool Space now allows anyone to pay for and accelerate any transaction they want. You don't need to register an account and get whitelisted. There are a few customization options. From what I can see right now, there are three options where you can pay between 51k and 60k sats. When you choose how much you want to pay, you will see a QR code with an LN invoice. Of course, RBF and CPFP remain the better options than paying Mempool space for the acceleration.
So that's why they never got back to confirming my account. It's a good service, but right now it looks a bit misleading:
Quote
Reducing expected confirmation time to within ~9 minutes
~
Your transaction will be prioritized by up to 39.0% of miners.
The first statement is incompatible with the second statement.

I like that they're promoting LN instead of shitcoins for this.
legendary
Activity: 2730
Merit: 7065
Mempool Space now allows anyone to pay for and accelerate any transaction they want. You don't need to register an account and get whitelisted. There are a few customization options. From what I can see right now, there are three options where you can pay between 51k and 60k sats. When you choose how much you want to pay, you will see a QR code with an LN invoice. Of course, RBF and CPFP remain the better options than paying Mempool space for the acceleration.   
legendary
Activity: 2618
Merit: 6452
Self-proclaimed Genius
-snip-
ok I got this after putting the signed:
It should be the new signed raw transaction, the result of the signrawtransactionwithwallet command in your previous "ok, completed" reply.

If you haven't kept a copy of it: within 2 minutes after using; walletpassphrase "your_passphrase" 120
Use:
That's the txid (transaction ID). You should use the raw transaction:
Code:
signrawtransactionwithwallet "01000000010481a776ff31478b8b967e15a9e68f78f4cd06b156a5d12910f72d8885147e95020000001976a914367ca154148ceabbcfc3b6c6167f512bb4f9c23388acfdffffff01b88800000000000017a914e09aa133479cff513578a460c606ba504fd761a68700000000"

Take note that LoyceV put the same output in that smaller transaction that could "replace" your old unconfirmed 1sat/vB transaction
Use that exact command in the code if you're still willing to send a smaller amount of 35,000sat to 3NAcXNafRsDDNqfzxMmd7qARswfob1e1xL.
If everything's fine, broadcast the result.

BTW, we've been derailing this topic about mempool.space's accelerator.
It's best to start a new topic in 'Bitcoin Technical Support' board where this fits and for better visibility.
legendary
Activity: 3290
Merit: 16489
Thick-Skinned Gang Leader and Golden Feather 2021
ok I got this after putting the signed:
That's the same transaction you posted in March. You didn't sign and broadcast a new one.
member
Activity: 153
Merit: 11
ok done, what's next?
What's the result when you used sendrawtransaction command?
If it's success (txid) but not propagating, your peers may still have your old transaction and don't support "fullrbf" so they're rejecting it.
One solution is to use addnode command to connect to peers that is known to support fullrbf
like the ones listed here: petertodd.org/2023/why-you-should-run-mempoolfullrbf#full-rbf-peering

Another simple solution is to broadcast it to nodes that support it.
AFAIK, Blockstream supports fullrbf so try to broadcast the signed raw transaction there: blockstream.info/tx/push

You may also share the signed raw transaction so others can try to broadcast it to their node. (there's no difference in privacy since your original transaction is already known)
Use [code][/code] tags to preserve its formatting.

ok I got this after putting the signed:

https://blockstream.info/tx/42888c7b1540f8d5b9e074d15c2d86d7b03878adf6f173c7316f09910c2dabd9
legendary
Activity: 2618
Merit: 6452
Self-proclaimed Genius
ok done, what's next?
What's the result when you used sendrawtransaction command?
If it's success (txid) but not propagating, your peers may still have your old transaction and don't support "fullrbf" so they're rejecting it.
One solution is to use addnode command to connect to peers that is known to support fullrbf
like the ones listed here: petertodd.org/2023/why-you-should-run-mempoolfullrbf#full-rbf-peering

Another simple solution is to broadcast it to nodes that support it.
AFAIK, Blockstream supports fullrbf so try to broadcast the signed raw transaction there: blockstream.info/tx/push

You may also share the signed raw transaction so others can try to broadcast it to their node. (there's no difference in privacy since your original transaction is already known)
Use [code][/code] tags to preserve its formatting.
member
Activity: 153
Merit: 11
Copy the resulting signed raw transaction hex and use the command: sendrawtransaction "signed_raw_transaction" to broadcast it to your node and relay it to your peers.

ok done, what's next?
It's not showing up on mempool.space yet, so the broadcast didn't work. Try to broadcast the signed transaction through coinb.in.

Could you help me as well how to enter the data on coinb.in?

Thank you for your help so far.
legendary
Activity: 3290
Merit: 16489
Thick-Skinned Gang Leader and Golden Feather 2021
Copy the resulting signed raw transaction hex and use the command: sendrawtransaction "signed_raw_transaction" to broadcast it to your node and relay it to your peers.

ok done, what's next?
It's not showing up on mempool.space yet, so the broadcast didn't work. Try to broadcast the signed transaction through coinb.in.
member
Activity: 153
Merit: 11
It does not seems to pick both command in one line, what to do now?
First use the wallet passphrase with a timeout (say 600 seconds), then sign the transaction (on the next line).

ok, completed:
b30c00",
  "complete": true
}


ok so next step:
Copy the resulting signed raw transaction hex and use the command: sendrawtransaction "signed_raw_transaction" to broadcast it to your node and relay it to your peers.

ok done, what's next?
legendary
Activity: 3290
Merit: 16489
Thick-Skinned Gang Leader and Golden Feather 2021
It does not seems to pick both command in one line, what to do now?
First use the wallet passphrase with a timeout (say 600 seconds), then sign the transaction (on the next line).
member
Activity: 153
Merit: 11
signrawtransactionwithwallet "42888c7b1540f8d5b9e074d15c2d86d7b03878adf6f173c7316f09910c2dabd9"
That's the txid (transaction ID). You should use the raw transaction:
Code:
signrawtransactionwithwallet "01000000010481a776ff31478b8b967e15a9e68f78f4cd06b156a5d12910f72d8885147e95020000001976a914367ca154148ceabbcfc3b6c6167f512bb4f9c23388acfdffffff01b88800000000000017a914e09aa133479cff513578a460c606ba504fd761a68700000000"

Error: Please enter the wallet passphrase with walletpassphrase first.

ok I had to use walletpassphrase and the timeout value, it still ask it though.
It does not seems to pick both command in one line, what to do now?

legendary
Activity: 3290
Merit: 16489
Thick-Skinned Gang Leader and Golden Feather 2021
signrawtransactionwithwallet "42888c7b1540f8d5b9e074d15c2d86d7b03878adf6f173c7316f09910c2dabd9"
That's the txid (transaction ID). You should use the raw transaction:
Code:
signrawtransactionwithwallet "01000000010481a776ff31478b8b967e15a9e68f78f4cd06b156a5d12910f72d8885147e95020000001976a914367ca154148ceabbcfc3b6c6167f512bb4f9c23388acfdffffff01b88800000000000017a914e09aa133479cff513578a460c606ba504fd761a68700000000"
member
Activity: 153
Merit: 11
-snip-
Thanks for your help but this is too complicated for me.
I use bitcoin core QT.
You can also (temporarily) set mempoolfullrbf=1 option to let your node accept replacement to transactions without opt-in rbf flag.
Sign the transaction LoyceV provided you (output checks out), then broadcast it to your node's mempool.

Follow these simple steps:
  • Go to "Settings->Options...", click "Open Configuration File" and your 'bitcoin.conf' file should open with your text editor.
  • In your config file, type: mempoolfullrbf=1 in a new line and save the changes, then close the text editor.
  • Close Bitcoin Core, wait for it to properly close, then launch it again.
  • Once running, Open Core's console in "Window->Console", make sure that the correct wallet is selected in the console's drop-down menu;
    In that console window, type the command: signrawtransactionwithwallet "unsigned_raw_transaction" to sign the (unsigned_raw_transaction) LoyceV's transaction above.
  • Copy the resulting signed raw transaction hex and use the command: sendrawtransaction "signed_raw_transaction" to broadcast it to your node and relay it to your peers.

Once done, you may disable the 'fullrbf' setting if you do not want to use it.

Ok I used
# Accept transaction replace-by-fee without requiring replaceability
# signaling (default: 0)
mempoolfullrbf=1

close the tool and opened again, wen't in console, but got this error:

signrawtransactionwithwallet "42888c7b1540f8d5b9e074d15c2d86d7b03878adf6f173c7316f09910c2dabd9"

TX decode failed. Make sure the tx has at least one input. (code -22)

I selected the good wallet
legendary
Activity: 3290
Merit: 16489
Thick-Skinned Gang Leader and Golden Feather 2021
Export private key, import it into Electrum, click "Tools > Load transaction", sign it, broadcast it.
option to cancel the transaction is still grayed out (wallet is synced).
Try the above. Or nc50lc's solution.
member
Activity: 153
Merit: 11
Thanks for your help but this is too complicated for me.
Export private key, import it into Electrum, click "Tools > Load transaction", sign it, broadcast it.
Or just convince Bitcoin Core to drop your transaction. Maybe upgrade to the latest version first, I don't know if that would help.
Broadcasting won't help as the fee is too low.
I just tried latest Bitcoin Core 27.0,
option to cancel the transaction is still grayed out (wallet is synced).


https://zupimages.net/up/24/24/t852.png





legendary
Activity: 2618
Merit: 6452
Self-proclaimed Genius
-snip-
Thanks for your help but this is too complicated for me.
I use bitcoin core QT.
You can also (temporarily) set mempoolfullrbf=1 option to let your node accept replacement to transactions without opt-in rbf flag.
Sign the transaction LoyceV provided you (output checks out), then broadcast it to your node's mempool.

Follow these simple steps:
  • Go to "Settings->Options...", click "Open Configuration File" and your 'bitcoin.conf' file should open with your text editor.
  • In your config file, type: mempoolfullrbf=1 in a new line and save the changes, then close the text editor.
  • Close Bitcoin Core, wait for it to properly close, then launch it again.
  • Once running, Open Core's console in "Window->Console", make sure that the correct wallet is selected in the console's drop-down menu;
    In that console window, type the command: signrawtransactionwithwallet "unsigned_raw_transaction" to sign the (unsigned_raw_transaction) LoyceV's transaction above.
  • Copy the resulting signed raw transaction hex and use the command: sendrawtransaction "signed_raw_transaction" to broadcast it to your node and relay it to your peers.

Once done, you may disable the 'fullrbf' setting if you do not want to use it.
legendary
Activity: 3290
Merit: 16489
Thick-Skinned Gang Leader and Golden Feather 2021
Thanks for your help but this is too complicated for me.
Export private key, import it into Electrum, click "Tools > Load transaction", sign it, broadcast it.
Or just convince Bitcoin Core to drop your transaction. Maybe upgrade to the latest version first, I don't know if that would help.
member
Activity: 153
Merit: 11
My transaction is still in mempool for 3 months now ...
I assume you're talking about this transaction: 42888c7b1540f8d5b9e074d15c2d86d7b03878adf6f173c7316f09910c2dabd9.

Quote
Why is it not getting out of the mempool?
There is no "one mempool". Anyone can keep that transaction as long as it's valid. Easy fix: move one of the inputs.
For example, (check and if you like it) sign this transaction:
Code:
01000000010481a776ff31478b8b967e15a9e68f78f4cd06b156a5d12910f72d8885147e95020000001976a914367ca154148ceabbcfc3b6c6167f512bb4f9c23388acfdffffff01b88800000000000017a914e09aa133479cff513578a460c606ba504fd761a68700000000
This takes your smallest input, adds a higher fee, and sends it to your destination address. I used coinb.in to create this unsigned transaction.
Once this is confirmed, your months-old transaction is no longer valid.

Thanks for your help but this is too complicated for me.
legendary
Activity: 2912
Merit: 6403
Blackjack.fun
All signs point too the fact that ViaBTC is winding down on its operations or is at least falling on hard times. If it's not finding blocks at the rate it used to be, then clearly the first thing that is going to be axed are the free transaction accelerator because it has to get as much BTC as possible to survive. I am actually quite surprise that they haven't killed yet if it's not very useful anymore.

What signs?
They had an 11.30% share over a year and a 13.70% share over the last month is not like they are losing anything significant!
That was a purely economic decision, it made sense at the time and it makes sense for every mining pool, you're giving away better rewards and you also make the income of your miners smaller compared to other pools,  we all love cheap stuff but a company isn't run on appreciations! You don't have to be near bankruptcy to do it!


legendary
Activity: 1568
Merit: 6660
bitcoincleanup.com / bitmixlist.org
First is the limits that have killed the demand, Viabtc has really half closed to gate, so you have to pay 20sat/vb to be sure and keep your tx under 0.5kb, plus of course no unconfirmed parents, so there are times when there are simply no tx out there that match the requirements, as for the next block issue, it happens when ViaBTC has really bad luck and is not getting enough blocks spread across the day, they offer 100tx every hour but sometimes they don't mine a block for 6-7 hours, so not to fill the whole block with cheap tx they postpone a few of them to the next one, I read once something about a 500 cap but don't know how accurate that claim was, probably it's more about size than raw numbers.

All signs point too the fact that ViaBTC is winding down on its operations or is at least falling on hard times. If it's not finding blocks at the rate it used to be, then clearly the first thing that is going to be axed are the free transaction accelerator because it has to get as much BTC as possible to survive. I am actually quite surprise that they haven't killed yet if it's not very useful anymore.
legendary
Activity: 2212
Merit: 7064
My transaction is still in mempool for 3 months now ...
Why is it not getting out of the mempool?
It's been 4 months actually, but this is because you used minimal fee 1.00 sat/vB so transaction can't be confirmed and I honestly don't remember last time we saw fees getting that low.
Don't expect it to see fees go down that level any time soon, so better do what LoyceV suggested above.
legendary
Activity: 3290
Merit: 16489
Thick-Skinned Gang Leader and Golden Feather 2021
My transaction is still in mempool for 3 months now ...
I assume you're talking about this transaction: 42888c7b1540f8d5b9e074d15c2d86d7b03878adf6f173c7316f09910c2dabd9.

Quote
Why is it not getting out of the mempool?
There is no "one mempool". Anyone can keep that transaction as long as it's valid. Easy fix: move one of the inputs.
For example, (check and if you like it) sign this transaction:
Code:
01000000010481a776ff31478b8b967e15a9e68f78f4cd06b156a5d12910f72d8885147e95020000001976a914367ca154148ceabbcfc3b6c6167f512bb4f9c23388acfdffffff01b88800000000000017a914e09aa133479cff513578a460c606ba504fd761a68700000000
This takes your smallest input, adds a higher fee, and sends it to your destination address. I used coinb.in to create this unsigned transaction.
Once this is confirmed, your months-old transaction is no longer valid.
member
Activity: 153
Merit: 11
My transaction is still in mempool for 3 months now ...
Why is it not getting out of the mempool?
legendary
Activity: 3290
Merit: 16489
Thick-Skinned Gang Leader and Golden Feather 2021
if you post in public the transaction that you want to accelerate, you might be in trouble because if you don't accelerate it and will hope that nodes will forget your transaction soon, then there might come someone evil who will push nodes to broadcast your transaction and it will be unconfirmed till the day recommended fees match to your TX fees.
No need to post anything: the moment you broadcast a transaction, it's public knowledge. "Someone evil" can just be a node with very large mempool. But for most other nodes, 1 sat/vbyte is still under the purge limit, so they won't even remember it.
The only way to make a signed transaction invalid is by moving at least one of the inputs (with a higher fee).
hero member
Activity: 882
Merit: 792
Watch Bitcoin Documentary - https://t.ly/v0Nim
If I delete, will my sat be back in the wallet?
Yes.

After a month, Bitcoin Core should be able to forget this 1 sat/vbyte transaction. It's even under the purge limit.
Alternatively, you could probably import the private key into Electrum and create a new transaction there, but try first to wipe this transaction from your Bitcoin Core.
Just want to confirm this. As far as I understood, if you post in public the transaction that you want to accelerate, you might be in trouble because if you don't accelerate it and will hope that nodes will forget your transaction soon, then there might come someone evil who will push nodes to broadcast your transaction and it will be unconfirmed till the day recommended fees match to your TX fees.

You can wait a very long time for confirmation with minimal 1.00 sat/vB fee that you used
That might not happen for months in the best case, years in the good case and never in the worst case.
legendary
Activity: 2212
Merit: 7064
I made the payment to empty my wallet, this is why it is at 0 At the moment.
It was not the case before of course.
Yeah, I see you tried to do, but older format addresses you used needs higher fees.
You can wait a very long time for confirmation with minimal 1.00 sat/vB fee that you used, but you can always send more coins to your wallet and accelerate transaction if you are in a hurry.
Next time make sure to check mempool.space before making any (consolidation) transactions.
member
Activity: 153
Merit: 11
I made the payment to empty my wallet, this is why it is at 0 At the moment.
It was not the case before of course.
legendary
Activity: 2212
Merit: 7064
Could it be that the delete transaction can only be done if you still have BTC in you wallet?
I get 0 for now.

Silly question to ask... it's impossible to make any transaction in bitcoin blockchain if you have ZER0 coins in your wallet, and zero really needs to be 0, not 0.00012 or similar.
You can't get in negative balance with bitcoin, like you can do with fiat currencies and banks accounts.
member
Activity: 153
Merit: 11
Could it be that the delete transaction can only be done if you still have BTC in you wallet?
I get 0 for now.
legendary
Activity: 3290
Merit: 16489
Thick-Skinned Gang Leader and Golden Feather 2021
(abandon transaction and increase fee (RBF was off) are grayed out
I've often noticed that too. I'm not sure when this feature can be used.

Quote
If I delete, will my sat be back in the wallet?
Yes.

After a month, Bitcoin Core should be able to forget this 1 sat/vbyte transaction. It's even under the purge limit.
Alternatively, you could probably import the private key into Electrum and create a new transaction there, but try first to wipe this transaction from your Bitcoin Core.
member
Activity: 153
Merit: 11
I still see
You are currently on the waitlist. You will get notified once you are granted access.
Do you know how much time it takes to get access to the accelerator?
I have set a way to low fee and turned off RBF ... What a mess, there is no confirmation after 1 month ...

If 1 month already passed, most node already drop your transaction from it's node. Depending on which wallet software you use, you can "delete" that unconfirmed transaction and create new ones with better fee rate.
I use bitcoin core QT.
I do not see delete transaction when right clicking on it. (abandon transaction and increase fee (RBF was off) are grayed out)
Transaction is here:
https://mempool.space/tx/42888c7b1540f8d5b9e074d15c2d86d7b03878adf6f173c7316f09910c2dabd9
If I delete, will my sat be back in the wallet?
legendary
Activity: 2870
Merit: 7490
Crypto Swap Exchange
I still see
You are currently on the waitlist. You will get notified once you are granted access.
Do you know how much time it takes to get access to the accelerator?
I have set a way to low fee and turned off RBF ... What a mess, there is no confirmation after 1 month ...

If 1 month already passed, most node already drop your transaction from it's node. Depending on which wallet software you use, you can "delete" that unconfirmed transaction and create new ones with better fee rate.
member
Activity: 153
Merit: 11
I still see
You are currently on the waitlist. You will get notified once you are granted access.
Do you know how much time it takes to get access to the accelerator?
I have set a way to low fee and turned off RBF ... What a mess, there is no confirmation after 1 month ...
legendary
Activity: 2912
Merit: 6403
Blackjack.fun
Yesterday, I sent out an unusual (for me) tx (Segwit, lean, several outputs), costing just under 10000 sats at mempool's "high priority" fee rate. RBF-ing myself to bump up the rate to 10% more was only several thousand sats but Mempool's fee was 40k sats for that. So about 400% on top of the fee paid. It was as if, despite the tx already at what they considered to be a high priority fee, they insisted to bump it up much, much higher.

Take it as you will, I obviously would need to look at many more tx fee to make a good comparison. I just feel they don't really optimise.

Yeah, the dynamic price is a bitch when it comes to this, of course it's designed to be a profit service but it  just covers to much the needs of the pool and too little of the client pockets.
The 50k sat per byte is the turnoff for small tx:
a ‎135 vB tx costs now 53 500 sat , $22.89
a ‎14.74 kvB costs now 450 000 sat, $321.33.
But still, way cheaper than the alternatives, Viabtc  is asking for 4x!



legendary
Activity: 1568
Merit: 6660
bitcoincleanup.com / bitmixlist.org
I hope they add LN payments for that, the whole thing is a bit messy for those accelerators,  if you can't send or receive money because you paid a low fee and now you need to pay a higher fee to get a payment though to get that previous one confirmed it turns to funny situations like this one:

Imagine you have some hosted wallet on an exchange, the dumb mofos send your withdrawal to your wallet with 10sat/b and now you need to accelerate it, you only have BTC there so you make another payment to mempool.space but again, the idiots send the tx with 10sat/b. So you need to accelerate the tx that should have paid for the acceleration  Grin Grin

It's really messed up - having the acceleration for the transaction held up in a queue.

The alternate solution in case they don't want to mess around with LN is to implement account credit. It has its own drawbacks, but at least you'll be able to top it up when fees are not crazy. Assuming you even remember to that is.

Just happened to see this new service on mempool myself and of course, arrived here on the forum to see someone saw it almost 2 months ago. As others note, the price is actually really dependent on your tx and current fee rate.

Strangely, I have not really seen this feature on Mempool.space at all during that time. Maybe it was on their development version. By the way - did you know that the dev version of Mempool.space where they test all their features is on mempool.ninja?
legendary
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Just happened to see this new service on mempool myself and of course, arrived here on the forum to see someone saw it almost 2 months ago. As others note, the price is actually really dependent on your tx and current fee rate.

Yesterday, I sent out an unusual (for me) tx (Segwit, lean, several outputs), costing just under 10000 sats at mempool's "high priority" fee rate. RBF-ing myself to bump up the rate to 10% more was only several thousand sats but Mempool's fee was 40k sats for that. So about 400% on top of the fee paid. It was as if, despite the tx already at what they considered to be a high priority fee, they insisted to bump it up much, much higher.

Take it as you will, I obviously would need to look at many more tx fee to make a good comparison. I just feel they don't really optimise.

I guess they just take the highest end of the spectrum and decide to use that as their basis for fee bumping to get the tx confirmed and not base it on the lowest fee possible to get the tx in the next block. That's lazy acceleration, and I understand that people want to gey their tx confirmed in a timely manner during the busy times, but it seems that I'll stick to Antpool's service if this is how high they put their fees to be.
legendary
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Just happened to see this new service on mempool myself and of course, arrived here on the forum to see someone saw it almost 2 months ago. As others note, the price is actually really dependent on your tx and current fee rate.

Yesterday, I sent out an unusual (for me) tx (Segwit, lean, several outputs), costing just under 10000 sats at mempool's "high priority" fee rate. RBF-ing myself to bump up the rate to 10% more was only several thousand sats but Mempool's fee was 40k sats for that. So about 400% on top of the fee paid. It was as if, despite the tx already at what they considered to be a high priority fee, they insisted to bump it up much, much higher.

Take it as you will, I obviously would need to look at many more tx fee to make a good comparison. I just feel they don't really optimise.
hero member
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BTW,  visualization of expected blocks in the relevant row shown  on  mempool.space allows you to get to a whole series of initially hidden filters that allow you to highlight various types of transactions, for instance, by   various sighash flags or those ones containing inscriptors (which are of concern to everyone, etc. (see all filters in the image below).



To make filters visible, click on the goggles icon located at the upper left corner of the visualized block.

hero member
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But it is free, so i would not complain too much Wink.

If you pass all of their restrictions for their free accelerating service, waiting should not be a problem.
Yes, indeed. But once their mining business become not profitable due to the free txs they accept with how many hours of not getting a block. They will end up limiting free txs or cap txs for every block they mine which end up, either longer confirmation for others txs Or they stop their free service.

   
Actually a 1:10 should be ok, so a block evey two hours.
Viabtc got
- 50 blocks in th last 3 days (that's 50 in 408)  ~12%
- 116 blocks in the last week, (116 in  992)  ~11%
- 20 last 24 hours, again 12% out of 156   

A block every two hours would be pretty doable, but with bad luck, there are gaps:
Yesterday: 12:47:30 > 19:14:18
This is a good insights and observation. Thank you.
legendary
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Blackjack.fun
~
I experienced this one when i accelerate my transaction on monday it really take how many hours before my transaction got a confirmation. Checking the last few blocks, it looks like Viabtc doesnt get one, a 1:10 ratio is not even possible, its usually the Foundry, Antpool, and others.

Actually a 1:10 should be ok, so a block evey two hours.
Viabtc got
- 50 blocks in th last 3 days (that's 50 in 408)  ~12%
- 116 blocks in the last week, (116 in  992)  ~11%
- 20 last 24 hours, again 12% out of 156   

A block every two hours would be pretty doable, but with bad luck, there are gaps:
Yesterday: 12:47:30 > 19:14:18


Electrum don’t even let me broadcast my transaction telling me that i am a cheapfuck who needs to raise the damn fee because greedy fuck miners say so or else they ain’t broadcasting my shiet.

So what should miners do, let you get  confirmation cheaper than some other guy just like you who pays more?
As long as somebody is paying you more for the job, why would take the lower bid?
Should we make some social score on the chain and give guys how move only $50-$100 priority?
Should we make ratios, one tx per capita per day?
legendary
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I guess so, i'm just concerned of how they performed on mining a block — on how frequent they get the mining reward, or it just other mining pool like faundry has more hashing power than other miners like viabtc. Well, to be honest i'm just concerned their free accelerators because it take so much time before it got a confirmation like i experienced before lol.
But it is free, so i would not complain too much Wink.

If you pass all of their restrictions for their free accelerating service, waiting should not be a problem. ViaBTC has ~ 12% of the total hashrate in the network, which is smaller than what Foundry Pool has, which is ~ 25% of the total hashrate, so on average they would surely mine more blocks than ViaBTC.
hero member
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They've had this service for years, but tightened the rules a bit. I guess it's a "trial" for their paid accelerator service.
I guess so, i'm just concerned of how they performed on mining a block — on how frequent they get the mining reward, or it just other mining pool like faundry has more hashing power than other miners like viabtc. Well, to be honest i'm just concerned their free accelerators because it take so much time before it got a confirmation like i experienced before lol.
legendary
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Either they lower the accepted free txs every hour, say 50-80 only, have a cap for free txs in a block, or they stop their free acceleration service.
They've had this service for years, but tightened the rules a bit. I guess it's a "trial" for their paid accelerator service.
hero member
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I have noticed that too the new feature and it's definitely 5 times cheaper compared to viabtc but it's not cheaper though.

I just checked the acceleration fee for a random transaction and this is the estimated fee



So just make yourself that you are using a wallet that supports RBF and CPFP then you won't end up paying $50 or $500 more than what it used to be.
Acceleration fee is very individual, depends on the transaction fees that are recommended by mempool.space at given time and depends on transaction size. So, everyone will experience individually calculated fees.

Neither RBF nor CPFP are magically cures, they will only allow you some movement buy not always, and if we look right now what's happening, most of those tractions stuck that need help around are not made by users but by them claiming their coins from a service, and good luck doing something with those.
If you are not willing to pay, RBF and CPFP are not cures but if you are willing to pay, then, they are. To be fair, as you said, problem are transactions made by 3rd parties that send transaction with low fee and either don't support RBF or are not willing to do anything to increase transaction fee via RBF. So, these companies/services will feed transaction accelerators like mempool.space but things will probably change after Full-RBF.
legendary
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If this is true, then you're right, but it's also worth noting that ViaBTC claims their paid service extends beyond their mining pool:

  • Quote
    Paid Service
    ViaBTC cooperates with multiple mainstream mining pools so that your transaction will be proposed and prioritized for quicker confirmation when any of our partner mining pool produces a block.
Yes, that's correct. The free service is for their own mining pool but ViaBTC's paid accelerator can include your transactions in partner blocks as well. Since several people have mentioned that the upcoming service of Mempool.space will be cheaper than ViaBTC's paid plan, I expect that Mempool.space will take a great chunk out of the pie for users looking to spend additional coins to accelerate their unconfirmed transactions.
legendary
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Also, if it's true that Mempool.space has partnered with Foundry as the pool that includes the transactions in their blocks, you will get a quicker confirmation since Foundry has more hash power and finds more blocks than ViaBTC.
If this is true, then you're right, but it's also worth noting that ViaBTC claims their paid service extends beyond their mining pool:

  • I don't understand the purpose of the waiting list. Just allow the people to create their accounts.
    There are no restrictions for creating an account, but you can't use it for anything at the moment... Having said that, their "GitHub repository" appears to only have a single open issue about their accelerator, so perhaps it wouldn't take long before it's fully launched.
legendary
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I don't understand the purpose of the waiting list. Just allow the people to create their accounts. The more users you have, the greater the chance that some of them will use your paid service, hence, you will benefit from them.

They may need more time and update some of the software related to Foundry memepool to ensure that they receive serious fees compared to the traditional payment method. I don’t know, but if they contract with several mining pools, this may lead to making memepool.space a service that has a large number of visits, so it is better for the users’ experience to be better without problems or the need to contact the support team.
legendary
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I have registered since more than a week. This is what I am still seeing as I quote it in a text before.
I don't understand the purpose of the waiting list. Just allow the people to create their accounts. The more users you have, the greater the chance that some of them will use your paid service, hence, you will benefit from them.

It is still 100 transactions. ViaBTC has not stopped its free accelerator service.
I think PX-Z meant that as a recommendation of what ViaBTC could do in the future. He didn't say that it it's already like that.

Yeah it is pretty ridiculous lately. I can’t move my damn sig payments for cheap. They are stuck in my wallet unless I pay $10-20 to move my damn funds. Electrum don’t even let me broadcast my transaction telling me that i am a cheapfuck who needs to raise the damn fee because greedy fuck miners say so or else they ain’t broadcasting my shiet.
Try to switch Electrum servers. Maybe you will get lucky and find one with a more suitable purging fee rate. At the moment, nodes may be deleting (and not allowing) anything that pays less than 10-11 sat/vByte. So either pay more or try to find a different server.
legendary
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Electrum don’t even let me broadcast my transaction telling me that i am a cheapfuck who needs to raise the damn fee because greedy fuck miners say so or else they ain’t broadcasting my shiet.
It is not the miners that did not let you to be able to use low fee, it is how the mempool is. Presently, nodes are rejecting transactions with fee rate of 10.7 sat/vbyte or less. As the mempool is becoming congested, so the purging will be getting higher.
legendary
Activity: 3276
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The acceleration service is have used is viabtc for free it works perfectly for me but that is only when your transaction fee is less than 40 sat/byte it was share in our local board by @Charles-Tim.
The network congestion is really getting out of control, maybe when I am having issues towards confirmation I will also try their free acceleration service as well.

Yeah it is pretty ridiculous lately. I can’t move my damn sig payments for cheap. They are stuck in my wallet unless I pay $10-20 to move my damn funds. Electrum don’t even let me broadcast my transaction telling me that i am a cheapfuck who needs to raise the damn fee because greedy fuck miners say so or else they ain’t broadcasting my shiet. The devs should find a solution or bitcoin will end up way worse than legacy banking. At this point swift is cheaper and faster than btc. Wtf?

I ain’t paying you no more than 10sats/byte you greedy fukz
legendary
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Also, if it's true that Mempool.space has partnered with Foundry as the pool that includes the transactions in their blocks, you will get a quicker confirmation since Foundry has more hash power and finds more blocks than ViaBTC. That's an advantage if the unconfirmed transaction is time-sensitive.
I have registered since more than a week. This is what I am still seeing as I quote it in a text before. This is the screenshot:



Although, I do not need a paid accelerator, I will still prefer to always use ViaBTC. My transaction will have 18.5 sat/vbyte segwit transaction, not having unconfirmed parent and not more than 500 bytes. I can wait for the transaction to get confirmed. It was only ones that the transaction got confirmation like 12 hours after I submitted my txid, it has gone back to as usual as the transaction will be confirmed in the next block that ViaBTC mine if successfully submitted. It is taking not more than 3 hours, but it depends also.

Knowing that 2000 is the average number of transactions in a block then they cater 100 free tx every hour, it could have downside for their Pool. Either they lower the accepted free txs every hour, say 50-80 only, have a cap for free txs in a block, or they stop their free acceleration service.
It is still 100 transactions. ViaBTC has not stopped its free accelerator service.
hero member
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Notify wallet transaction @txnNotifierBot
...so there are times when there are simply no tx out there that match the requirements, as for the next block issue, it happens when ViaBTC has really bad luck and is not getting enough blocks spread across the day, they offer 100tx every hour but sometimes they don't mine a block for 6-7 hours, so not to fill the whole block with cheap tx they postpone a few of them to the next one, I read once something about a 500 cap but don't know how accurate that claim was, probably it's more about size than raw numbers.
I experienced this one when i accelerate my transaction on monday it really take how many hours before my transaction got a confirmation. Checking the last few blocks, it looks like Viabtc doesnt get one, a 1:10 ratio is not even possible, its usually the Foundry, Antpool, and others.

Knowing that 2000 is the average number of transactions in a block then they cater 100 free tx every hour, it could have downside for their Pool. Either they lower the accepted free txs every hour, say 50-80 only, have a cap for free txs in a block, or they stop their free acceleration service.
legendary
Activity: 2730
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I also doubt anyone that knows ViaBTC free accelerator will want to use any paid accelerator.
Not necessarily. ViaBTC being free is a big plus. But many people know about it, which makes it the go-to place for free transaction acceleration. I am surprised that you have noticed a shorter queue on ViaBTC considering the current congested state of the mempools. Damn Ordinals! Also, if it's true that Mempool.space has partnered with Foundry as the pool that includes the transactions in their blocks, you will get a quicker confirmation since Foundry has more hash power and finds more blocks than ViaBTC. That's an advantage if the unconfirmed transaction is time-sensitive.
hero member
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I also doubt anyone that knows ViaBTC free accelerator will want to use any paid accelerator.
You have a point, but if the volume of their transaction exceeds ViaBTC's limit for their free accelerator, they have no choice but to use a paid accelerator.
I am one of those people that have paid a very low fee long time ago and the fees won't go down to that fee that I've paid for. Can't even use the free accelerator of viabtc. I ended up paying a paid service to accelerate that stuck transaction of mine because it really took long. Learning from my mistake there but at least I've got options now if the same thing happens again in the future and this time, there's this additional accelerator from mempool.space.
legendary
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Blackjack.fun
So just make yourself that you are using a wallet that supports RBF and CPFP then you won't end up paying $50 or $500 more than what it used to be.

Unless you're the receiving guy and it's a 5 inputs 40 output tractions that will cost you more to CPFP than what you're receiving  Wink
Neither RBF nor CPFP are magically cures, they will only allow you some movement buy not always, and if we look right now what's happening, most of those tractions stuck that need help around are not made by users but by them claiming their coins from a service, and good luck doing something with those.

I noticed recently that ViaBTC accelerator free submission is no more congested all of a sudden, but transaction that has been submitted successfully may not get confirmed in the next block that ViaBTC mine. It is taking longer but it will still later be confirmed.

First is the limits that have killed the demand, Viabtc has really half closed to gate, so you have to pay 20sat/vb to be sure and keep your tx under 0.5kb, plus of course no unconfirmed parents, so there are times when there are simply no tx out there that match the requirements, as for the next block issue, it happens when ViaBTC has really bad luck and is not getting enough blocks spread across the day, they offer 100tx every hour but sometimes they don't mine a block for 6-7 hours, so not to fill the whole block with cheap tx they postpone a few of them to the next one, I read once something about a 500 cap but don't know how accurate that claim was, probably it's more about size than raw numbers.

sr. member
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I have noticed that too the new feature and it's definitely 5 times cheaper compared to viabtc but it's not cheaper though.

I just checked the acceleration fee for a random transaction and this is the estimated fee



So just make yourself that you are using a wallet that supports RBF and CPFP then you won't end up paying $50 or $500 more than what it used to be.
legendary
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This business of accelerating transaction will dive down when we all support full RBF. Then, everyone will be able to speed up their own transaction without paying additional fees to these companies. Today the problem is that many people still make transaction from wallet that doesn't support RBF.


One additional use of this accelerator is when you empty your wallet and it doesn't confirm, I was tempted to ask a friend who is using a mempool.space to accelerate the transaction coming from the wallet I emptied but was lucky that the transactions confirmed, majority of wallets now have RBF so these accelerators are just another option when you cannot RBF your transaction, but we still need these accelerators in case.
hero member
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The issue is, there's currently no user here in Bitcointalk that reported their experience with mempool.space's accelerator.
It would be great to have some legitimate feedbacks.
I am not going to spend transaction with low fee and then pay to mempool.space to accelerate it, will be a waste of money and to be honest, I think, it doesn't need any legitimate feedback, it's mempool.space after all and this service will work as advertised.

AFAIK, their accelerator isn't fully open to the public yet [the feature in question is there, but as soon as you create and verify your account, they'll put you on a waitlist (almost one week and counting...) and that means you can't even top up your account (unfortunately)].
Good information! I didn't know if it still wasn't fully open to the public yet. I created this thread because I saw accelerate button when I was checking one of my transaction and since it was calculating acceleration fees for every transaction, I thought it was widely ready to use. Good point again, I'll edit my ANN post.

I hope they add LN payments for that, the whole thing is a bit messy for those accelerators,  if you can't send or receive money because you paid a low fee and now you need to pay a higher fee to get a payment though to get that previous one confirmed it turns to funny situations like this one:

Imagine you have some hosted wallet on an exchange, the dumb mofos send your withdrawal to your wallet with 10sat/b and now you need to accelerate it, you only have BTC there so you make another payment to mempool.space but again, the idiots send the tx with 10sat/b. So you need to accelerate the tx that should have paid for the acceleration  Grin Grin
This business of accelerating transaction will dive down when we all support full RBF. Then, everyone will be able to speed up their own transaction without paying additional fees to these companies. Today the problem is that many people still make transaction from wallet that doesn't support RBF.

So how much do we save by using this service?
You are nto saving by using this service. There are times when you don't have enabled RBF and you need to accelerate your transaction. The problem is that every accelerator asks you for enormously high fees and mempool.space offers very competitive prices compared to them.
legendary
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I hope they add LN payments for that,
In addition to that, supporting payments with other alternative cryptocurrencies that have lower average TX fees will also come in handy.

I also doubt anyone that knows ViaBTC free accelerator will want to use any paid accelerator.
You have a point, but if the volume of their transaction exceeds ViaBTC's limit for their free accelerator, they have no choice but to use a paid accelerator.
legendary
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The issue is, there's currently no user here in Bitcointalk that reported their experience with mempool.space's accelerator.
It would be great to have some legitimate feedbacks.
Since I have registered an account with mempool.space since some days ago, this has been what was displayed anytime I signed in:
Mine was about a week ago and it's still in their waiting list.
And now, they've even changed the default overview page from "deposit/balance" into "become a sponsor" links.
Perhaps they're suggesting that their sponsors have an advantage or currently required to make it in.

I noticed recently that ViaBTC accelerator free submission is no more congested all of a sudden, but transaction that has been submitted successfully may not get confirmed in the next block that ViaBTC mine. It is taking longer but it will still later be confirmed.
Yeah, bots for some reason, cannot solve the new captcha.
For now, only legitimate users are competing with the 100 free acceleration slots/hr.
hero member
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So how much do we save by using this service?

Say your transaction is 100 sat/byte currently and by using this service how much will it cost effectively?

I don't really get why they would offer a service like this when they can just process the higher transaction fees instead of getting paid less than what they can get on the mempool. Can someone explain what the benefit is to the pool exactly?

Because people will essentially be paying at a premium price. Took a quick look at their pricing and there is a fixed 100K sats as a mempool.space fee among other things -- emphasis on among other things as there is more depending on the transaction/options you choose.

With that said, you don't save anything, the service is more of a desperate attempt/last resort if the situation calls for it. If you wanna save, best to use viabtc's free transaction accelerator and setup your transaction in such a way that it meets viabtc's conditions.
hero member
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The acceleration service is have used is viabtc for free it works perfectly for me but that is only when your transaction fee is less than 40 sat/byte
I think this is a typo. The fee should be at least not less than 10 sat/byte. The transaction must also not be more than 500 bytes. Also the transaction must not have unconfirmed parent.

Yeah sorry my bad..
I also used it today to accelerate my transaction and this time around I sat it at 50 sat/byte and it confirmed within some minutes or an hour thereabouts, at least this saves some outrageous fee being spent at the cost of withdrawing one's btc to exchange.
But will this ever stop?
legendary
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So how much do we save by using this service?

Say your transaction is 100 sat/byte currently and by using this service how much will it cost effectively?

I don't really get why they would offer a service like this when they can just process the higher transaction fees instead of getting paid less than what they can get on the mempool. Can someone explain what the benefit is to the pool exactly?
legendary
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The issue is, there's currently no user here in Bitcointalk that reported their experience with mempool.space's accelerator.
It would be great to have some legitimate feedbacks.
Since I have registered an account with mempool.space since some days ago, this has been what was displayed anytime I signed in:

Quote
You are currently on the waitlist. You will get notified once you are granted access.

I am not still able to have access to the accelerator.

I also doubt anyone that knows ViaBTC free accelerator will want to use any paid accelerator.

I noticed recently that ViaBTC accelerator free submission is no more congested all of a sudden, but transaction that has been submitted successfully may not get confirmed in the next block that ViaBTC mine. It is taking longer but it will still later be confirmed.
hero member
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You probably missed this but recently mempool.space finally added transaction acceleration service on their website.

I hope everyone uses RBF or at least CPFP (hope everyone will move on full-RBF) but still, if someone has any problem, they can test this service. I hope they are cheaper than viabtc's paid accelerator, Binance's accelerator and some others.
This is good news if it's truly what it looks like, but for now, I am good with my ViaBTC accelerator which is of course free. However, it's not until I test it that I can conclude about it, or at least someone tests it on BTT to give feedback. But all I've been reading from people's replies are still nothing to write home about, except the one that states we would have an account before using it

I have no issues with that. All the stress will still amount to nothing if it's a free service, but I doubt it. Nevertheless, if the service is cheap compared to the outrageous ones out there, it will still be manageable.

Let's see how far they will be distributing the accelerated service too.
legendary
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Blackjack.fun
The acceleration service is have used is viabtc for free it works perfectly for me but that is only when your transaction fee is less than 40 sat/byte it was share in our local board by @Charles-Tim.

Less? It works fine as long as it's above 10sat/b (not vbytes), you can accelerate even a tx that is 100sat/b if you are bored and have nothing to do for 10 minutes.

The issue is, there's currently no user here in Bitcointalk that reported their experience with mempool.space's accelerator.
It would be great to have some legitimate feedbacks.
AFAIK, their accelerator isn't fully open to the public yet [the feature in question is there, but as soon as you create and verify your account, they'll put you on a waitlist (almost one week and counting...) and that means you can't even top up your account (unfortunately)].

I hope they add LN payments for that, the whole thing is a bit messy for those accelerators,  if you can't send or receive money because you paid a low fee and now you need to pay a higher fee to get a payment though to get that previous one confirmed it turns to funny situations like this one:

Imagine you have some hosted wallet on an exchange, the dumb mofos send your withdrawal to your wallet with 10sat/b and now you need to accelerate it, you only have BTC there so you make another payment to mempool.space but again, the idiots send the tx with 10sat/b. So you need to accelerate the tx that should have paid for the acceleration  Grin Grin


legendary
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The issue is, there's currently no user here in Bitcointalk that reported their experience with mempool.space's accelerator.
It would be great to have some legitimate feedbacks.
AFAIK, their accelerator isn't fully open to the public yet [the feature in question is there, but as soon as you create and verify your account, they'll put you on a waitlist (almost one week and counting...) and that means you can't even top up your account (unfortunately)].
legendary
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the only problem is that changing the priority of transactions according to this method will help them if they decide to filter transactions (such as black lists) without anyone noticing them.
I don't see how that would be a problem. Any mining pool can already reject any transaction they want for any reason they can come up with. If they do, another pool will take the mining fee. If they reject transactions after accepting an additional payment for it, they'll get bad publicity.
hero member
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I wanted to try the service and it seems that you need to create an account. After creating the account, you need to top up your balance.


It appears that the mining pool that will be adding transactions to it is Foundry USA and I believe that the transaction will be confirmed quickly, the only problem is that changing the priority of transactions according to this method will help them if they decide to filter transactions (such as black lists) without anyone noticing them.
legendary
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I hope they are cheaper than viabtc's paid accelerator, Binance's accelerator and some others.
You can click that "Accelerate" button and their prices per tier will appear.
And yes, it's significantly cheaper than ViaBTC's paid accelerator, even their maximum tier is less than half of viabtc's asking price.

The issue is, there's currently no user here in Bitcointalk that reported their experience with mempool.space's accelerator.
It would be great to have some legitimate feedbacks.

I don't know where should I have created this thread, on Service Announcement board or here
This belongs to "Service Discussion" board.
legendary
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The acceleration service is have used is viabtc for free it works perfectly for me but that is only when your transaction fee is less than 40 sat/byte
I think this is a typo. The fee should be at least not less than 10 sat/byte. The transaction must also not be more than 500 bytes. Also the transaction must not have unconfirmed parent.

Recently the free accelerator is difficult to use unless you wait for another one hour to submit your txid. It takes seconds for the 100 transactions to have been submitted now. Although, I am still using it and it is working.
hero member
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The acceleration service is have used is viabtc for free it works perfectly for me but that is only when your transaction fee is less than 40 sat/byte it was share in our local board by @Charles-Tim.
The network congestion is really getting out of control, maybe when I am having issues towards confirmation I will also try their free acceleration service as well.
hero member
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I don't know where should I have created this thread, on Service Announcement board or here but I think this board is a better choice because people come here when they have transaction problems.

You probably missed this but recently mempool.space finally added transaction acceleration service on their website.


I hope everyone uses RBF or at least CPFP (hope everyone will move on full-RBF) but still, if someone has any problem, they can test this service. I hope they are cheaper than viabtc's paid accelerator, Binance's accelerator and some others.
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