Bitcoin Forum

Here's the reddit post (http://redd.it/1xlnz1)

Today I sent myself some Bitcoins to btc-e and then got a notification from my blockchain app that I received 0.00000001 BTC.

I looked up the transaction and address and found that it's publicly labeled "Play and Win BTC" which redirects to bitwars.org. Checked their address and they've been sending 100's if not 1,000's of minor transactions to Bitcoin addresses which send or receive payment by what looks like a blockchain transactions scan. Transaction Examples (https://blockchain.info/tx/e37acf064b1f628d327bd0e41886e75747d4f69ed56164e56b811e0cd8a8ec5d)

Got home tonight and was going through the routine check on my site (cryptothrift.com (https://cryptothrift.com)) when I saw the same amounts sent to disposable addresses used for people to deposit funds:

• receive 1.0E-8 BTC 0 1EqzzdcMi25HjhLdZUMZh2ER9TQs7ZJrYq
• receive 1.0E-8 BTC 0 1DuYqSNL3c7mwQNoDGHL2heFvK1Qh4R4jG
• receive 1.0E-8 BTC 0 1DuYqSNL3c7mwQNoDGHL2heFvK1Qh4R4jG
• receive 1.0E-8 BTC 0 1fxApMamCQFqEZ5as2CF2GQY5bft7GHiM

That's when I clicked to what they're attempting to do, spam the network with minor fee-less transactions to advertise their service. Which reminded me to what I read (but not confirmed) about a similar game played by bitcoin.tm on https://bitcointalk.org/index.php?topic=297110.0

Is this normal? Have services and sites been doing this much lately? Does raise eye brows or am I just too cautious?

Update: When I sent the coins to my btc-e account, I noticed that I got the same amount transacted twice. First one confirmed nicely, the 2nd is still sitting with 0 confirmations (a typical double spend attempt) and the TX ID is invalid

https://i.imgur.com/1L0iP7a.png

2f4044aa4491be921b084f56790089e4a37525ff475ffbe036e5105a0903955e (https://blockchain.info/tx/2f4044aa4491be921b084f56790089e4a37525ff475ffbe036e5105a0903955e). I didn't think twice of that either... But I just noticed the same thing happened on my site with one of those addresses which have received the 0.00000001 BTC

https://i.imgur.com/Ew8buw5.png

... again, the transaction ID c6977180762c6c55d836a9e3018b4d05f4f5d67957c5e74f11316954da3c7643 (https://blockchain.info/tx/c6977180762c6c55d836a9e3018b4d05f4f5d67957c5e74f11316954da3c7643) shows as invalid with 0 confirmations showing on my side.

Regarding the second issue, the double transactions, this is probably related to the transaction malleability attack that has plagued MtGox (but doesn't affect properly configured systems). People may be picking up transactions and rebroadcasting them with a different tx-id, for fun or to run some exploit, who knows?

It's just a new way of spamming/advertising.

Similar thing here: https://bitcointalk.org/index.php?topic=459845.0

We figured that this is the issue, and for those two transactions to have the same weird 1 Satoshi in them might be all circumstantial and there could be nothing more into it. We hope at least... Our system has been ignoring those transaction with invalid hashes and processing the valid ones accordingly.

Good way to get free traffic

Interesting way of spamming.

 I got 0.00000001BTC from this address: https://blockchain.info/address/1Enjoy1C4bYBr3tN4sMKxvvJDqG8NkdR4Z

Doesn't bitcoin have spam dust fee like litecoin to prevent this type of spam on the network?

I don't think the transactions will ever get confirmed will they?

Doesn't matter, they still burden the network.

No they don't burden the network. You can send 1M of these transactions and nobody would feel a thing.

I agree, it's not a matter of burdening the network. It's a pure spammy advertising which they're sending no transaction fee with. So technically, 1 BTC can send 100,000,000 transactions to different addresses. Let 1% of these check the link, you've got 1,000,000 visitors. Which $700 ad campaign can generate such traffic?

Smart, but not ethical.

Is there a way to stop this, or are the devs working on something?

Transaction without fees do end up confirming... eventually; if no double spending was detected.

Not that I know off, but I could be wrong. I know some addresses and associated addresses can be flagged in case of double spending, but I'm not entirely sure how/if they can be blocked from sending/receiving. If they can, the devs would have probably thought about blocking the SR seized coins with the FBI to prevent a mass sell off :)

Couldn't this also be a way of confirming addresses that are currently active by tracking the time sent till inquiry? possibly capturing IP of linked inquiries to an address used exclusively to this campaign.

Why would they do that? That's just asking for trouble. What I was thinking was more along the lines of being able to set your wallet to not receive dust etc.

    It would certainly need to be a receiver option because e-book authors and some other press outlets make micro transactions for materials viewed and/or downloaded with the thought that the content creator would accumulate a useable sum.

That was a joke ^^ :)

ummm, not really, it's like asking your bank to accept anything above $5 to your account... I think money is money.

But imagine somebody throwing $0.05 under your front door so you open to find a salesman trying to sell you a Schticky?

http://static4.fjcdn.com/comments/Spoiler...+this+is+what+vince+does+when+he+s+alone+with+_37557ea61b49bdf09d8685f66aef91f8.jpg

Yeah, it wouldn't be a good idea restricting it altogether, but an option to block certain amounts or addresses could be useful.

i have one of these and one that starts "1Sochi" , this type of spam will discourage new users and work as FUD for those trying to overstate the TM issue. it isn't 'bad' technically, but from a PR angle, it is bad

I'm sure if it becomes a problem it'll be dealt with somehow. Does anyone know how many people they've actually spammed?

Our system has exactly the same problem, 1 satoshi spam automatically causing double spending attempts for larger deposits. Can't quite figure out what's there to play with, but it sure doesn't smell good.

take a look at this https://blockchain.info/tx-index/d2a97fea6856d3ba5d64d15333dac2fa36ca84e2d0c7b9e24e6fbf52ca9ee168

these people sent 1 satoshi to a lot of addresses...

received yesterday 0,00000001 from unkown address 1SochiWwFFySPjQoi2biVftXn8NRPCSQC

i received two Satoshi transactions:

1SochiWwFFySPjQoi2biVftXn8NRPCSQC
1Enjoy1C4bYBr3tN4sMKxvvJDqG8NkdR4Z

 :-\

hope this will be fixed soon

maybe if i received it from 1Sex* i'd feel a little bit better  :o

1% do not check the link.  Maybe 10 people do.  None of them will buy anything. 

Makes you wonder if this is the results that Mt.Gox was referring to as a glitch that forced them to take their servers down. As large as they are it would take a considerable amount of time to weed through all the broken transactions and prepare to complete the legitimate ones that had been interfered with. As well as putting up a defense to this kind of attack.

I got one today also but for only one wallet. It seems that if your payment address is out in the open you will receive this. My main wallet was not affected. I have a side wallet that takes in payments and one that stores. The one that stores did not get one.

I received 8 of those today starting with 1SochiWw and 1Enjoy1 btc 0.00 each and non of them confirmed.

Same here ... and they keep coming in...
https://www.evernote.com/shard/s12/sh/ddc814f7-1b81-43c2-8c66-efd7bbd4cf72/7a8a80e4bfacf59ba9e3df926b42c1ce/res/a1e9bc80-4991-4402-874c-3f9edc30f6e4/skitch.png

They wont get confirmed. Thousands of people got them by the looks of things.

It seems to me that the problem is not with the bitcoin client, but rather the "tag address" feature at blockchain. If the tag is deleted wouldn't that remove the incentive to do this?

Is someone able to explain why these will not be confirmed? I agree they are annoying, but what makes them invalid?