[CHALLENGE] Run A Bitcoin Node: 14 Days To 14 Merits - page 121.

Shishir99

sr. member

Activity: 644

Merit: 379

Quote from: NotATether on January 11, 2024, 02:22:43 AM

Progress: (valid as of the creation date of this post)

Code:

Day 1:
Shishir99

I have a stupid question. What if I try running two nodes on two devices? Grin

My internet package was upgraded today and currently, I am using a 50mpbs connection. But I am not getting actual speed for some reason. My ISP said something about pick hour. But I am happy with my progress so far. The estimated time shows 42 hours left and I am on my 2nd day. I guess a pruned node does not help the network. Or does it?

Day 2:

oktana

sr. member

Activity: 1582

Merit: 281

Eloncoin.org - Mars, here we come!

DAY 3

Explanation: I am really sorry as I totally forgot to post an update. Now, I have day 3 (current) progress, but I missed out on posting day 2. My internet is not always great that’s why the increase per hour is not so much.

tech30338

full member

Activity: 644

Merit: 139

Defend Bitcoin and its PoW: bitcoincleanup.com

Day 7

Code:

{
  "chain": "main",
  "blocks": 825262,
  "headers": 825262,
  "bestblockhash": "00000000000000000003287017fb6998ca6d29a5273c1b3d06488dd2bfa0e894",
  "difficulty": 73197634206448.34,
  "time": 1704958113,
  "mediantime": 1704957106,
  "verificationprogress": 0.9999958118239488,
  "initialblockdownload": false,
  "chainwork": "0000000000000000000000000000000000000000650acf9f67f75202669e74d7",
  "size_on_disk": 4876699480,
  "pruned": true,
  "pruneheight": 822814,
  "automatic_pruning": true,
  "prune_target_size": 4999610368,
  "warnings": ""
}

NotATether

legendary

Activity: 1568

Merit: 6660

bitcoincleanup.com / bitmixlist.org

Progress: (valid as of the creation date of this post)

Code:

Day 1:
Shishir99

Day 3:
spiker777
SilverCryptoBullet
apogio

Day 6:
tech30338
DYING_S0UL

Day 7:
Ultegra134

Awaiting Status update:
oktana (please post your day 2 stats)

If you see any error in the progress report like your name isn't listed correctly, and so on, please let me know so I can fix it.

A number of errors in the previous progress have been fixed. Starting from today, if you forget to post your progress then you will receive a friendly reminder from me in PM to post an update.

spiker777

sr. member

Activity: 1004

Merit: 279

Payment Gateway Allows Recurring Payments

Day 3 Progress

Code:

{
  "chain": "main",
  "blocks": 319932,
  "headers": 825174,
  "bestblockhash": "000000000000000022e40c460772f3a2982df102c4fb3f957f8f2315bd279745",
  "difficulty": 27428630902.25787,
  "time": 1410317637,
  "mediantime": 1410315143,
  "verificationprogress": 0.04879378178664742,
  "initialblockdownload": true,
  "chainwork": "0000000000000000000000000000000000000000000182d71c45b72bf0b14687",
  "size_on_disk": 26664032081,
  "pruned": true,
  "pruneheight": 0,
  "automatic_pruning": true,
  "prune_target_size": 299999690752,
  "warnings": ""
}

9 Years and 17 Weeks behind.

Shishir99

sr. member

Activity: 644

Merit: 379

Quote from: apogio on January 10, 2024, 12:49:34 PM

10 hrs without electricity is a lot. Not having electricity will suspend nearly all of your activities. Internet is important, of course, but I guess having light and being able to cook is more important. But if we strictly talk about internet speeds, then 5Mbps is below average for sure. But, don't forget there are people who have no internet at all, so... Anyway the whole situation sucks. It's kind of ironic but I hope bitcoin will help you live a brighter life, at least financially speaking.

As you may understand from my writing style, we Bangladeshi people are used to it already. But the situation is not the same everywhere. People in major cities rarely experience power cuts while people who live in the village side are used to a few hours of load shedding. Most of the people use IPS in their house because of the load shedding. It doesn't bother us too much unless the power cut is for too long. I live in a village and a city too. I often travel from here to there for several purposes. My Internet speed is kind of good compared to 90 percent of other people. I was using a 20mbps connection when I downloaded the Bitcoin Core. But I already paid for a 50mbps connection so I can download the block faster. My ISP will upgrade my connection tonight.

Here is the progress so far.

Day 1:

apogio

hero member

Activity: 546

Merit: 1039

Quote from: Shishir99 on January 10, 2024, 11:28:42 AM

Usually, electricity does not shut down for that long in the winter season. But, sometimes they cut off the electricity for some maintenance. But, if we talk about seasons except for winter, it's pretty common to survive 10 hours without electricity.

10 hrs without electricity is a lot. Not having electricity will suspend nearly all of your activities. Internet is important, of course, but I guess having light and being able to cook is more important. But if we strictly talk about internet speeds, then 5Mbps is below average for sure. But, don't forget there are people who have no internet at all, so... Anyway the whole situation sucks. It's kind of ironic but I hope bitcoin will help you live a brighter life, at least financially speaking.

edit: I think we have derailed from the topic. So well done for running nodes despite the circumstances.

Ultegra134

hero member

Activity: 1680

Merit: 845

Day 7, half way there!

Quote

{
"chain": "main",
"blocks": 644311,
"headers": 825158,
"bestblockhash": "000000000000000000000f487c50304ed24ab52f45e7b7411c27a2711ad00e40",
"difficulty": 16947802333946.61,
"time": 1597784486,
"mediantime": 1597781536,
"verificationprogress": 0.6152154956715028,
"initialblockdownload": true,
"chainwork": "0000000000000000000000000000000000000000128a298bdae3942bb7ea9e90",
"size_on_disk": 34431671167,
"pruned": true,
"pruneheight": 618546,
"automatic_pruning": true,
"prune_target_size": 34999369728,
"warnings": ""
}

o_e_l_e_o

legendary

Activity: 2268

Merit: 18697

Quote from: LoyceV on January 10, 2024, 11:49:02 AM

Wouldn't the user notice something's wrong the moment his Bitcoin Core can't download new blocks?

He could still download the new blocks I'm feeding him. Or he could throw away my chain and download a different chain from another peer. But since he isn't verifying anything, how does he know which chain is correct?

Quote from: LoyceV on January 10, 2024, 11:49:02 AM

That would be in chainstate, right?

Yeah. In pruned nodes, the blocks are downloaded, verified, and then the changes to the UTXO set written to chainstate before the blocks are pruned. In this "don't bother verifying any old data" model, then I can just slip my fake transactions in there and he would be none the wiser.

LoyceV

legendary

Activity: 3290

Merit: 16489

Thick-Skinned Gang Leader and Golden Feather 2021

Quote from: o_e_l_e_o on January 10, 2024, 11:41:46 AM

I can fill my fake blocks with real transactions taken from the real blockchain, thereby padding them to full size and padding the UTXO set to full size as well. In fact, I could probably just use the last x number of real blocks and add in the fake transactions - without running a full node he isn't verifying anything anyway.

Wouldn't the user notice something's wrong the moment his Bitcoin Core can't download new blocks? Or are you going to run many nodes to support this (hypothetical) scam?

Quote

Or conversely if he does want to verify but only the most recent x number of blocks, then I just do the same thing but add my fake transactions in to a historic block he isn't going to verify.

That would be in chainstate, right?

o_e_l_e_o

legendary

Activity: 2268

Merit: 18697

Quote from: LoyceV on January 10, 2024, 10:48:16 AM

But still: the user will know soon enough when he realized blocks and chainstate are too small, and his new deposits don't show up.

Assuming I am performing such an attack in order to scam the user in question, then I can fill my fake blocks with real transactions taken from the real blockchain, thereby padding them to full size and padding the UTXO set to full size as well. In fact, I could probably just use the last x number of real blocks and add in the fake transactions - without running a full node he isn't verifying anything anyway. Or conversely if he does want to verify but only the most recent x number of blocks, then I just do the same thing but add my fake transactions in to a historic block he isn't going to verify.

Either way, it's possible to fool anything less than verification from block 0.

Shishir99

sr. member

Activity: 644

Merit: 379

Quote from: apogio on January 09, 2024, 03:31:21 PM

I am sad to see that you have so slow internet. Is the speed that low in general in your country? At the same time, 7hrs without electricity, it sucks... I hope you are ok now.

I am one of his countrymates and I guess he is okay with that. Usually, electricity does not shut down for that long in the winter season. But, sometimes they cut off the electricity for some maintenance. But, if we talk about seasons except for winter, it's pretty common to survive 10 hours without electricity. If you talk about slow internet, it's below average compared to the rest of the world.

Most internet users use 5mbps speed unless they need special speed for some special work like streaming or uploading content. That's why we hate online installers. We people always try to download the full package of any software.

BTW, I have downloaded Bitcoin Core's latest version and started downloading the block.

LoyceV

legendary

Activity: 3290

Merit: 16489

Thick-Skinned Gang Leader and Golden Feather 2021

Quote from: o_e_l_e_o on January 10, 2024, 10:21:50 AM

You connect to my server, and I show you 500 fake blocks with a difficulty of 1 which I just generated a minute ago. How do you know my blocks are fake unless you verify them yourself?

This would actually be really good to do as a proof of concept. But still: the user will know soon enough when he realized blocks and chainstate are too small, and his new deposits don't show up.

o_e_l_e_o

legendary

Activity: 2268

Merit: 18697

Quote from: digaran on January 09, 2024, 04:25:23 PM

I mean it should be obvious that the latest 500 confirmed and matured blocks could be used as a safe measure to indicate that the UTXO set we would be holding on our wallets is legit

You connect to my server, and I show you 500 fake blocks with a difficulty of 1 which I just generated a minute ago. How do you know my blocks are fake unless you verify them yourself?

tech30338

full member

Activity: 644

Merit: 139

Defend Bitcoin and its PoW: bitcoincleanup.com

day 6

Code:

{
"chain": "main",
"blocks": 825142,
"headers": 825142,
"bestblockhash": "00000000000000000002289f9a5f728bbf388e88eb1db2ad3f0373ff83b485d0",
"difficulty": 73197634206448.34,
"time": 1704891514,
"mediantime": 1704887836,
"verificationprogress": 0.9999992811069129,
"initialblockdownload": false,
"chainwork": "000000000000000000000000000000000000000064eb9ac1ecde363fe64cee1f",
"size_on_disk": 4951722347,
"pruned": true,
"pruneheight": 822665,
"automatic_pruning": true,
"prune_target_size": 4999610368,
"warnings": ""
}

apogio

hero member

Activity: 546

Merit: 1039

DAY 3:

Code:

{
"chain": "main",
"blocks": 825136,
"headers": 825136,
"bestblockhash": "000000000000000000005e8995fdc28fc05bdfe5d4a8c276ff57215598cc3b23",
"difficulty": 73197634206448.34,
"time": 1704886852,
"mediantime": 1704886406,
"verificationprogress": 0.9999991165935869,
"initialblockdownload": false,
"chainwork": "000000000000000000000000000000000000000064ea0b5073835b42f97c0dc9",
"size_on_disk": 613315493237,
"pruned": false,
"warnings": ""
}

SilverCryptoBullet

member

Activity: 97

Merit: 43

My prune node today.

Code:

{
  "chain": "main",
  "blocks": 653830,
  "headers": 825130,
  "bestblockhash": "0000000000000000000ae96fa57033cd841328f2e384eb9578958f4ef62c000c",
  "difficulty": 19997335994446.11,
  "time": 1603370689,
  "mediantime": 1603368137,
  "verificationprogress": 0.6104811576528744,
  "initialblockdownload": true,
  "chainwork": "000000000000000000000000000000000000000014f755b28a789431ddc81fea",
  "size_on_disk": 4452907203,
  "pruned": true,
  "pruneheight": 650793,
  "automatic_pruning": true,
  "prune_target_size": 4999610368,
  "warnings": ""
}

NotATether, is it count as my Day 2 or more?

Quote from: NotATether on January 08, 2024, 07:21:19 AM

Yes, everyone can join.

Yesterday result. I run the prune node since 3 January.

Thank you.

NotATether

legendary

Activity: 1568

Merit: 6660

bitcoincleanup.com / bitmixlist.org

Quote from: oktana on January 09, 2024, 07:56:55 PM

Mmm

It seems that I missed your entry in the process of updating the progress. Sorry about that! It's been fixed now.

oktana

sr. member

Activity: 1582

Merit: 281

Eloncoin.org - Mars, here we come!

Quote from: NotATether on January 09, 2024, 04:20:36 AM

I was busy yesterday and forgot to post the progress. Apologies!

Progress:

Code:

Day 1:
spiker777

Day 2:
apogio

Day 5:
tech30338
Ultegra134
DYING_S0UL

Mmm

apogio

hero member

Activity: 546

Merit: 1039

Quote from: DYING_S0UL on January 09, 2024, 04:37:27 PM

Well my friend I live in a rural area and that's why the slow internet connection. I never had a stable connection. There will always be some problems whether its my isp or the fiber or their hardware or the main server or anything which can cause to no internet. Also load shedding is very common in our country but we are used to it. No worries.

Your situation is the exact reason why I always vote in favour of small block sizes.
Even under the circumstances you described, you still have the opportunity to run a node, but it will just require a little more time.
Imagine if the blocks were 10 times larger, how difficult it would be for you to finish the IBD.
Kudos to you for trying, I know the motivation is not only the 14 merits. Keep going!

Topic: [CHALLENGE] Run A Bitcoin Node: 14 Days To 14 Merits - page 121. (Read 27961 times)