So, opt-in RBF was merged. Does anyone know an explorer that shows it?

Hey all,

we're seeing a lot of malleated transactions on our nodes. Anyone else?

Tx listed on https://blockchain.info/double-spends are also all malleated (click on links, if marked as "conflicted" blockchain.info has seem two versions of the same* tx).

What's the point? Another stresstest?

* or close enough

Hello,

Could someone explain to me how the governance of this forum is handled?
Or, if this has been explained before in a complete manner, point me in the right direction?

Cheers

Hey.

I have a friend in Montreal without a wallet (real wallet, was stolen) who needs funds.
I offered to send her some bitcoins, but don't know which Android wallet would be best
to use. Best in this case = easy to use, low barrier of entry. Ideally I'd like to avoid
24-word passphrases, security backups and 2fa.

Any suggestions?

Hey Bitcoiners,

What do you use for accounting other than just an Excel sheet? Do any of the bigger accounting solutions support double-currency accounting with Bitcoin (for example, USD and BTC)?

I am looking for a better solution, preferably online/cloud-based. I checked Waveapps and Xero, but both don't support it yet.

Quickbooks has a "PayWithBitcoin" extension which is, AFAIK, just a BitPay payment and gets directly converted into base currency.

On the geeky side, there is support for multiple currencies and bitcoin in ledger-cli and partial support in GnuCash, it appears. Anyone using this?

There is a service that lists wallets/address groups of known services (by clustering/chain analysis, I think).
I've seen it, but can't find it anymore. 

Anyone can help me out here?

Currently testing Bitcoin Core Daemon version v0.10.0.0-g047a898 and btcwallet version 0.5.1-alpha.
Wallets have the same 14 addresses, freshly rescanned, no activity since.

Calls:

Code:

$ bitcoin-cli listunspent|grep txid|wc -l
169
$ btcctl listunspent|grep txid|wc -l
173

So bitcoin core is missing 4 transactions. These are known to http://tbtc.blockr.io/ and have been confirmed since a long time (different blocks). Does this mean that bitcoin core has a bug here? Or am I missing something?

Hey,

I just stumbled across libbitcoin-server. It's a major rewrite of Obelisk, the server component of libbitcoin. According to the devs, it's supposed to be very fast. https://github.com/libbitcoin/libbitcoin-server

Information is sparse; the wiki is mostly empty and there are few references on the web.

Has anyone used this in anger already?

Hello,

I am looking into using armory as a replacement for bitcoin core's wallet. I want to use it only server-side, that is, no gui etc.

armoryd looks exactly what I am looking for, but documentation is very sparse and it seems that few people are using it.

Anyone having experience with using it in production?
How fast/stable is it?

It doesn't seem very complete right now, as creating wallets and some other things require one to use the gui (which doesn't work obviously), so armoryd requires one to copy wallets around, which is nasty)

[XMR.TO]

XMR.TO - official support thread
Pay the world, using Monero.

Hey,

We made this new service called XMR.TO. It allows you to pay any Bitcoin address using Monero.

Have a look at the website, it explains all the details: https://xmr.to

We're still in beta, so there might be some glitches. In case of problems, don't hesitate to contact us or just reply here. Any feedback is welcome!

Hey,

one thing that bugs me about github is that it's quite hard to keep track of forks - there's no description to the fork itself, it appears. So if one would like to explore useful alternative trees, it's quite difficult to do so! (not talking altcoins here - pure bitcoin). For example, in Linux there are some known trees used for integrating new functionality or proposed drivers etc.

Is there an equivalent for bitcoin? For example, is there some sort of index for "best of github bitcoin forks"?

CEX.io announced "PlugChain" a while ago, a bitcoin data API similar to chain.com etc.

Here's the CoinDesk article:
http://www.coindesk.com/cex-io-joins-bitcoin-api-race-launch-plugchain/

Does anyone know what happened to it? https://plugchain.com/ seems to be offline since a while...

Hello,

I am compiling a list of bitcoin APIs. Note that I am not interested in collecting block explorer web interfaces, but APIs for developers.

"Data" APIs

Requirements:

• some sort  of HTTP API (eg, REST)
• query the blockchain: blocks and transactions
• p2p network: unconfirmed transactions, push transactions
• query addresses: transactions, balances, unspents

(so basically everything one needs for building a web wallet)

Hosted:

• blockchain.info's blockchain data API [websockets]
• chain.com [webhooks, websockets]
• Blockstrap (as part of their app platform)
• Blockcypher [webhooks, websockets]
• Toshi by Coinbase [websockets]
• Blocktrail [webhooks, multisig]
• blockr  [websockets]
• smartbit  [websockets]

Self-Hosted:

• Insight API (self hosted open-source, by BitPay) (Hosted versions exist, see below) [websockets]
• Bitcore node (self hosted open-source using BitPay's "bitcore" API) (successor of Insight API) [websockets]

Discontinued:

• Hello, Block! offline as of 1/4/2015

High-level wallet APIs

• blockchain.info's blockchain data API
• Block.io  [webhooks, multisig]
• BitGo  [cosign]
• Gem  [webhooks, cosign]

Additions/suggestions/corrections?

Which is at the moment the most advantageous EU country for a bitcoin startup?
Not sure, as I haven't been following the news lately.

UK for example seems to be very good on the legal side, but banks seem to
starve out all bitcoin-related business (that is rumor, though).

I am looking for a small mechanical keyboard.
By "small" I mean keyboards with ~84 keys (smaller than TKL).
Want brown MX switches, but offer non-MX as well.
Some models I am interested in (but not limited to):

• Noppoo Choc Mini 2013
• Keycool

Caps, layout, colors: to be discussed.

So, I'd like to look into CryptoNote-based coins.

What do you think, which one of Bytecoin, Monero, Fantomcoin and Quazarcoin is worth a look?
Why?

(To all the coinpumpers out there: if your coin is not in the list above, or you don't know what CryptoNote is, don't bother replying.)

Hello,

didn't know in which board to stick this, so here it goes:

We decided to accept Bitcoin for registration payments at our bi-annual scientific conference ANTS.

Here's a teaser video that we made: http://youtu.be/vjJ02KDfG2o
( same robots as used in http://youtu.be/M2nn1X9Xlps )

ANTS 2014
Ninth International Conference on Swarm Intelligence
September 10-12, 2014. Brussels, Belgium
http://iridia.ulb.ac.be/ants2014/

ANTS 2014 will give researchers in swarm intelligence the
opportunity to meet, to present their latest research, and to
discuss current developments and applications.

In cooperation with the Belgian Bitcoin Association
http://www.bitcoinassociation.be/

Hello,

I am looking for this webpage that basically expresses the bitcoin network security in "dollars you'll need to run a 51% attack".

I've seen this page a while ago (I think it was setup by gavin) but I can't find it again. 

Can someone help me out?

Hello,

the wiki [1] states regarding the transaction fees that:

Otherwise, the reference implementation will round up the transaction size to the nearest thousand bytes and then add a fee of 0.0001 BTC per thousand bytes.

Now, "to round up" and "to the nearest" are contradictory.  Which one is it? [2] doesn't help either.

[1] https://en.bitcoin.it/wiki/Transaction_fees
[2] https://bitcointalk.org/index.php?topic=219504.0

Hey,

from time to time, I am seeing a bizarre bug when processing transactions. I have a main loop that looks for new transactions. If it finds any, it gets the raw transaction from bitcoind and processes it. This works fine - so far, so good.

Unfortunately, from time to time, the call of getrawtransaction fails with the following error message:

Code:

{u'message': u'No information available about transaction', u'code': -5}

This happens quite rarely, but the weird thing is that it fails continuously for a few minutes, and only for one specific transaction. After a few minutes, it just automagically rights itself, and I manage to get the raw transaction and process it. Even more bizarrely, during the time that my code fails to retrieve the raw transaction, I can retrieve the raw transaction on the command line just fine!  

I am running bitcoind 0.8.5 with txindex=1.

Any ideas where this might come from? Is this a bug in bitcoind?