[ANN][XCP] Counterparty - Pioneering Peer-to-Peer Finance - Official Thread

[xnova]

It appears there's a record for a 21000000 BTC credit from 1CUdFmgK9trTNZHALfqGvd8d6nUZqH2AAf in the list that shouldn't be there, which triggered some of the built-in sanity checking (a good thing). This could easily be ignored/skipped (as it's not valid to credit BTC via Counterparty), but I feel most comfortable leaving this bug to PhantomPhreak, given that he's been point on fixing these type of issues lately in counterpartyd (my focus has been more docs, build system/multiplatform, API, and GUIs).

He should be online rather soon to address this. Thanks for your patience guys while we work through these early issues with the distributed exchange, and the other functionality (broadcasts, bets, etc).

[panonym]

*laugh

About API:
When it's ready, does that mean XCP can be exchanged on centralized exchange too?
(Isn't there a problem for that as XCP exchange require BTC fee?)

[PhantomPhreak]

Sorry for the delay, guys. I was AFK.

I fixed the assertion error bug, and a working version is now on GitHub.

[xnova]

*laugh

About API:
When it's ready, does that mean XCP can be exchanged on centralized exchange too?
(Isn't there a problem for that as XCP exchange require BTC fee?)

Yes...however the API interface will be different than the standard bitcoind interface, and so it will take a centralized exchange some extra work to integrate.

BTC network fees should only be an issue on XCP deposit and withdrawal from the centralized exchange, as buys and sells can be tracked using the exchange's internal trade engine, without actually requiring any actual XCP sends until the user takes the money back out to their XCP wallet.

[PhantomPhreak]

- if asset == 'BTC': raise exceptions.BalanceError('Cannot send bitcoins.')
  it's such a pity, can't you modify it to be able to send (only) BTC from a selected pubkey?
  bitcoind miss this basic feature, which is annoying
  Beside, *it is possible* to send BTC trough counterprotocold, as send-cmd sent 0.0001086 BTC

I'm strongly considering adding this feature.

- your man help page are wrong, and unclear for new user (most important: miss = sign, which is obligatory to work)

The equals sign is not obligatory.

[PhantomPhreak]

  Example: pubkeyN has 1000 XCP & 1000 BTC, send-cmd cost 0.0002172 BTC
                  if I enter the command to move my XCP, all these BTC are frozen...
                  why does the other 999.999 BTC need to be unavailable for 1 blocktime?
                  awesome if you can improve that by stopping to move what doesn't need to move
                  just take the 0.0002172 or what it will cost in v0.9 with OP_RETURN (back to 0.0001 BTC I hope)
                  If I moved 500 XCP, I need to wait 1 blocktime to be able to move other XCP => annoying

Unfortunately I don't think bitcoin works that way. When you are trying to send an amount (0.0002172) that does not exactly match an unspent output, a transaction has to be made that takes the remaining amount and sends it back as change. The "problem" is that the amount sent back as change is unconfirmed, and counterpartyd does not allow spending of unconfirmed outputs (while I think the main client/blockchain.info does).

With Bitcoind, I think, one may send unconfirmed change that originated from one of the addresses in your wallet. I don't think that it would be impossible to enable this in counterpartyd, too.

[BitThink]

May I ask a question about parsing the XCP balance

In the specification " If the sender does not hold a sufficient amount of that asset at the time that the send message is parsed (in the sequence of transactions), then the send is invalid."

May I know if there're more than one transaction in a block, what's the sequence? Is it the order inside that block (the coinbase as the first transaction).

Moreover, the same applies to the ORDERs and BIDs. An order costs XCP will be invalid if there's no efficient balance. If there're SEND, ORDER, BID, SEND in the same block. We parse them in that order and reduce balance accordingly.  They all have the same priority, right? Thanks.

[PhantomPhreak]

May I ask a question about parsing the XCP balance

In the specification " If the sender does not hold a sufficient amount of that asset at the time that the send message is parsed (in the sequence of transactions), then the send is invalid."

May I know if there're more than one transaction in a block, what's the sequence? Is it the order inside that block (the coinbase as the first transaction).

Moreover, the same applies to the ORDERs and BIDs. An order costs XCP will be invalid if there's no efficient balance. If there're SEND, ORDER, BID, SEND in the same block. We parse them in that order and reduce balance accordingly.  They all have the same priority, right? Thanks.

That's all correct, yes.

[jimhsu]

Sorry guys, looks I broke something again ....  

Apparently 100,000,000,000 is too big of a number for coins.

"I was just trying to recreate DOGE .... *slinks away*"

(Wow, how many bugfixes did I cause in github today? lol)

[jimhsu]

Still .. better that these things happen now than in the future, where things will seriously break.

Note: I would suggest a max cap, because no matter what datatype you use, someone could simply issue 999999999999999999999999999.... coins as an attack.

I haven't tested non-alphanumeric characters in the asset name yet -- is there support for that or will I crash something again?

Also check for overflow possibilities in trading, dividend payments, bets, all that.

[PhantomPhreak]

Sorry guys, looks I broke something again ....  

Apparently 100,000,000,000 is too big of a number for coins.

"I was just trying to recreate DOGE .... *slinks away*"

(Wow, how many bugfixes did I cause in github today? lol)

Still .. better that these things happen now than in the future, where things will seriously break.

Note: I would suggest a max cap, because no matter what datatype you use, someone could simply issue 999999999999999999999999999.... coins as an attack.

I haven't tested non-alphanumeric characters in the asset name yet -- is there support for that or will I crash something again?

Absolutely. Keep 'em comin'.

I fixed the code so that it will run, but this same problem may exist elsewhere, so hold off on re-creating the problem for another twenty-four hours, maybe.

Asset names should only be upper-case alphabetic, but the code should catch all violations of that rule.

[jimhsu]

Sorry guys, looks I broke something again ....  

Apparently 100,000,000,000 is too big of a number for coins.

"I was just trying to recreate DOGE .... *slinks away*"

(Wow, how many bugfixes did I cause in github today? lol)

Still .. better that these things happen now than in the future, where things will seriously break.

Note: I would suggest a max cap, because no matter what datatype you use, someone could simply issue 999999999999999999999999999.... coins as an attack.

I haven't tested non-alphanumeric characters in the asset name yet -- is there support for that or will I crash something again?

Absolutely. Keep 'em comin'.

I fixed the code so that it will run, but this same problem may exist elsewhere, so hold off on re-creating the problem for another twenty-four hours, maybe.

Asset names should only be upper-case alphabetic, but the code should catch all violations of that rule.

Thanks for taking care of this right now. I won't cause any more mischief tonight ... :p

[mtbitcoin]

I burn 1BTC which is included in block 280513, next block the whole thing is down. I can't show up anywhere.  

But probably everyone has it, yes.
There are no transactions after block 280514: http://www.blockscan.com/

I have updated blockscan.com with the latest GIT pull and we are up todate for the explorer

[BitThink]

I tried to adapt couterpartyd to use blockchain.info json-rpc API. Sadly, blockchain.info json-rpc API does not provide 'getrawtransaction'. It seems I have to install bitcoind in my poor VPS having only 20GB.

[mtbitcoin]

I tried to adapt couterpartyd to use blockchain.info json-rpc API. Sadly, blockchain.info json-rpc API does not provide 'getrawtransaction'. It seems I have to install bitcoind in my poor VPS having only 20GB.

Have you tried blockr.io (http://blockr.io/documentation/api) ?

cheers

[BitThink]

I tried to adapt couterpartyd to use blockchain.info json-rpc API. Sadly, blockchain.info json-rpc API does not provide 'getrawtransaction'. It seems I have to install bitcoind in my poor VPS having only 20GB.

Have you tried blockr.io (http://blockr.io/documentation/api) ?

cheers

Cool! I did not know that before. I will give it a try. Thanks a lot.

It seems they've provided all the APIs I need to parse the counterparty balance. Just sent an email to ask for the request quota.

[mtbitcoin]

I tried to adapt couterpartyd to use blockchain.info json-rpc API. Sadly, blockchain.info json-rpc API does not provide 'getrawtransaction'. It seems I have to install bitcoind in my poor VPS having only 20GB.

Have you tried blockr.io (http://blockr.io/documentation/api) ?

cheers

Cool! I did not know that before. I will give it a try. Thanks a lot.

sure 

If you don't mind me asking which API are you using to retrieve your "pending confirmations" burn?

[SyRenity]

How it possible to get some test XCP?

[BitThink]

I tried to adapt couterpartyd to use blockchain.info json-rpc API. Sadly, blockchain.info json-rpc API does not provide 'getrawtransaction'. It seems I have to install bitcoind in my poor VPS having only 20GB.

Have you tried blockr.io (http://blockr.io/documentation/api) ?

cheers

Cool! I did not know that before. I will give it a try. Thanks a lot.

sure 

If you don't mind me asking which API are you using to retrieve your "pending confirmations" burn?

Currently, I am only using blockchain.io's 'https://blockchain.info/address/1CounterpartyXXXXXXXXXXXXXXXUWLpVr?format=json&limit=50&offset=0' and parse the burning balance based on this.  It lists all the transactions blockchain.io see, including unconfirmed ones.

[BitThink]

How it possible to get some test XCP?

You can burn some test BTCs, or ask someone having test XCPs to send you some.