New achivement. The biggest tx | Bitcointalksearch.org

bitcoinmasterlord

legendary

Activity: 1148

Merit: 1006

Quote from: newIndia on July 10, 2015, 03:14:13 PM

Quote from: amaclin on July 09, 2015, 02:31:06 PM

block #364583 dust/spam utxo=683383 ( 6.83383000 btc )

Quote from: amaclin on July 10, 2015, 02:37:07 AM

block #364649 dust/spam utxo=790472 ( 7.90472000 btc )

Quote from: amaclin on July 10, 2015, 02:42:18 PM

block #364739 dust/spam utxo=824463 ( 8.24463000 btc )

Looks like the more these spam takes place, the more price will go up to make the spam costlier. We just tested 295 on preev. Price has touched 357 USD on Huobi. Keep spamming Cheesy

I don't think that the spammers are affected by the bitcoin price. They most probably have their stash of coins and they don't buy them at an exchange on the run. The costs are the same regardless of the bitcoin price.

I wonder who does the spam. Does Hearn and Gavin have big pockets? They want their Bitcoin XT. Maybe they funded this.

newIndia

legendary

Activity: 2198

Merit: 1049

Quote from: amaclin on July 10, 2015, 03:28:54 PM

Quote from: newIndia on July 10, 2015, 03:14:13 PM

Looks like the more these spam takes place, the more price will go up

This part of forum is for development & technical discussion.
Not about trading.

Not for 'Speculation' either...

Quote from: amaclin on July 07, 2015, 06:11:24 AM

Quote from: johoe on July 07, 2015, 05:37:42 AM

which means it takes a little bit of RAM on every full node for the next centuries.

Centures? Are you joking? No doubt that bitcoin will die earlier

I think - this year

We have a dedicated sub-section for that => https://bitcointalk.org/index.php?board=57.0

amaclin

legendary

Activity: 1260

Merit: 1019

Quote from: newIndia on July 10, 2015, 03:14:13 PM

Looks like the more these spam takes place, the more price will go up

This part of forum is for development & technical discussion.
Not about trading.

newIndia

legendary

Activity: 2198

Merit: 1049

Quote from: amaclin on July 09, 2015, 02:31:06 PM

block #364583 dust/spam utxo=683383 ( 6.83383000 btc )

Quote from: amaclin on July 10, 2015, 02:37:07 AM

block #364649 dust/spam utxo=790472 ( 7.90472000 btc )

Quote from: amaclin on July 10, 2015, 02:42:18 PM

block #364739 dust/spam utxo=824463 ( 8.24463000 btc )

Looks like the more these spam takes place, the more price will go up to make the spam costlier. We just tested 295 on preev. Price has touched 357 USD on Huobi. Keep spamming Cheesy

amaclin

legendary

Activity: 1260

Merit: 1019

block #364739 dust/spam utxo=824463 ( 8.24463000 btc )

amaclin

legendary

Activity: 1260

Merit: 1019

block #364649 dust/spam utxo=790472 ( 7.90472000 btc )

amaclin

legendary

Activity: 1260

Merit: 1019

block #364583 dust/spam utxo=683383 ( 6.83383000 btc )

bitcoinmasterlord

legendary

Activity: 1148

Merit: 1006

Quote from: amaclin on July 08, 2015, 09:52:48 AM

Quote from: bitcoinmasterlord on July 08, 2015, 09:48:18 AM

Wouldn't these spamtransactions be lost after some time when no miner includes them in a block?

Miners love these txs because the fee is 0.0002 per kb today Grin

Doesn't sound like they could get rich from it since these are huge transactions isn't it? And the total fees wouldn't be worth it i think.

I wonder what i would do as a miner. There are some that don't include any transaction because they then have an advantage propagating their block with the nodes. They don't care about the fees at all.

amaclin

legendary

Activity: 1260

Merit: 1019

block #364505 dust/spam utxo=584343 ( 5.84343000 btc )

amaclin

legendary

Activity: 1260

Merit: 1019

Quote from: btcash on July 08, 2015, 05:08:38 PM

If this guy starts investing more money or if more people start this we have a serious problem.

This problem is well known. Tragedy of the commons

block #364470 dust/spam utxo=558159 ( 5.58159000 btc )

btcash

hero member

Activity: 968

Merit: 515

There definitly needs to be something done. Mining all these tx isn't the solution.

Breakdown of the costs:
BTC spend by the spammer:
- Outputs: 5.2 BTC (520000*0.00001, could have been done cheaper, the minium allowed by bitcoin core is 0.00000560)
- Tx Fees: 3.51 BTC (520000/40*0.00027, could have also been done cheaper)
-> 8.72 BTC (2310 $)

"Costs" for the network:
If no one would pick them up:
- UXTO bloat: 19.83 MB (520000*40/1024*1024)
- Additional disk bloat: ~ 20 MB
- Confirmation delay: 40,000 tx got delayed 1 block (2000 tx * 20 blocks, since the spam filled 20 blocks)
- Network traffic: 468.75 GB (probably much more, only calculated with full nodes, 40 MB * 6000 nodes * 2 / 1024)

With pickup:
- UXTO bloat: 0
- Additional disk bloat: 110 MB (20 + 90 MB, 90 MB created by picking up the tx)
- Confirmation delay: 220000 tx got delayed 1 block (2000 tx * 110 blocks, since the spam filled 110 blocks)
- Network traffic: 1289 GB (probably much more, only calculated with full nodes, 110 MB * 6000 nodes * 2 / 1024)

If this guy starts investing more money or if more people start this we have a serious problem.

amaclin

legendary

Activity: 1260

Merit: 1019

Quote from: btcash on July 08, 2015, 03:28:56 PM

How do you get these numbers? Are all spam tx send to the adresses with the know private key?

Exactly.
https://www.reddit.com/r/Bitcoin/comments/3chere/stress_test_giveaway/
https://www.reddit.com/r/Bitcoin/comments/3cf6qg/need_help_moving_coins_to_new_address/

DannyHamilton

legendary

Activity: 3388

Merit: 4615

Quote from: btcash on July 08, 2015, 03:02:09 PM

With 5569 inputs they should have ~ 805 kb instead of 976 kb (5569*143/1024).

I suspect that many of these inputs are using uncompressed public keys. As such the input size for those inputs will be 180 bytes.

((5569*180) + (44 bytes of transaction overhead and outputs))/1024 = 978 kb.

btcash

hero member

Activity: 968

Merit: 515

Quote from: amaclin on July 08, 2015, 03:04:58 PM

Quote from: macbook-air on July 08, 2015, 01:41:03 PM

Quote from: amaclin on July 07, 2015, 05:16:02 PM

OK, there are 330k such outputs in blockchain now
One block can reduce this number by 5569
So we need 60 blocks in a row filled by 1 tx just to eliminate these spam outputs from a blockchain Grin

Many of the addresses are compressed. 5569 is the number for uncompressed.

Update: we have ~520k these spam/dust UTxO in blockchain as of block #364447

How do you get these numbers? Are all spam tx send to the adresses with the know private key?

amaclin

legendary

Activity: 1260

Merit: 1019

Quote from: macbook-air on July 08, 2015, 01:41:03 PM

Quote from: amaclin on July 07, 2015, 05:16:02 PM

OK, there are 330k such outputs in blockchain now
One block can reduce this number by 5569
So we need 60 blocks in a row filled by 1 tx just to eliminate these spam outputs from a blockchain Grin

Many of the addresses are compressed. 5569 is the number for uncompressed.

Update: we have ~520k these spam/dust UTxO in blockchain as of block #364447

btcash

hero member

Activity: 968

Merit: 515

Why are these transactions so big? With 5569 inputs they should have ~ 805 kb instead of 976 kb (5569*143/1024).
Seems like the IsDust() calculation is broken. Size is 20% bigger than expected.

unamis76

legendary

Activity: 1512

Merit: 1009

Not getting what's up with these 1mb transactions mined by F2Pool... At least they are achievements and someone failing in trolling Cheesy

macbook-air

sr. member

Activity: 324

Merit: 260

Quote from: amaclin on July 07, 2015, 05:16:02 PM

OK, there are 330k such outputs in blockchain now
One block can reduce this number by 5569
So we need 60 blocks in a row filled by 1 tx just to eliminate these spam outputs from a blockchain Grin

Quote from: newIndia on July 07, 2015, 04:21:58 PM

By the way, bitcoin has not yet died even after three months of your death prediction.

I was wrong. It will die soon.

Many of the addresses are compressed. 5569 is the number for uncompressed.

amaclin

legendary

Activity: 1260

Merit: 1019

Quote from: Taras on July 08, 2015, 11:57:39 AM

Just got another 1 MB transaction from Discus Fish!

364423 0000000000000000058319fa2282779aada74b249369ecf9baa7ffaed3e11fb0 2015-07-08 17:49 2 976 KB 25.05569000
364422 000000000000000000283e9409575c2426cd72fcb722065431c52b5083e5bb58 2015-07-08 17:45 2 976 KB 25.05569000

This is very useful mining work Grin

Sending 5k spam outputs takes ~34 * 5k = ~170 kilobytes to spamer
Redeeming them takes 1 megabyte

I have bad news for you.

Taras

legendary

Activity: 1386

Merit: 1053

Please do not PM me loan requests!

Just got another 1 MB transaction from Discus Fish!

edit: I think TradeBlock and Blockchain.info got taken down at around the same time as this

Topic: New achivement. The biggest tx (Read 3388 times)