New achivement. The biggest tx

[macbook-air]

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  

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.

[unamis76]

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

[btcash]

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.

[amaclin]

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  

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]

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  

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?

[DannyHamilton]

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.

[amaclin]

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/

[btcash]

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]

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 )

[amaclin]

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

[bitcoinmasterlord]

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 

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]

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

[amaclin]

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

[amaclin]

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

[newIndia]

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

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

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

[amaclin]

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]

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...

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

[bitcoinmasterlord]

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

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

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

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.