Viewing profile — mriou

BlockCypher | SF Bay Area (Redwood City) | onsite We're building a block chain platform. We have web services to make it easy and quick for people to start developing for bitcoin a…

To support Urea we mostly had to add support for the X11 hash function and implement the Kimoto Gravity Well algorithm: http://bitcoin.stackexchange.com/questions/21730/how-does-th…

Will do, thanks a lot for the feedback.

It is non-trivial to create and sign a transaction among multiple parties. The point of multisig is that you have several entities, some can be humans, some can be machines, progra…

Thanks for the feedback, we will add a section on how to verify it.

Not blindly, you see both the generated transaction and the data to sign, you can validate either or both. And you are completely trusting a server in many other situations.

This is incorrect. You can have servers using multisig too, it increases the overall security of the transactions, especially if the different private keys are stored in different …

They have. But only if you're on node.js and you need to run bitcoind yourself. Which means maintaining it, backups, restart scripts, etc. Building the transaction using BitCore is…

It's much simpler than it sounds, only 7 lines of code in the sample posted. The point is that most people don't want to share their private key or their users' private keys, justi…

The full API documentation can be found there: http://dev.blockcypher.com/ Includes websockets and webhooks to get notified on a variety of blockchain events.

Not sure how well-maintained it is but: http://www.scalajobz.com/

Our APIs will expand a lot over the coming months. Any feedback on people see as most useful is highly valuable.

Banks are made of a mess of different systems. Some are locally ACID, but overall reconciliation and compensation are what keeps it all together. Regardless, this has little to do …

I'd be curious to have your perspective on the risks of relying on 3rd party infrastructure. That 3rd party can't really try to feed wrong blocks or transactions, it would ruin its…

I'm really glad Andreas is writing this book, should be a great way for more developers to get involved. Crypto-currencies are unfortunately still a little too arcane and books lik…

> you can still feel pretty safe with 0 confirmations if you're monitoring the > bitcoin network for double-spend attempts over the average network propagation time The above is mu…

Fair point. The original argument was advocating non-fractional though.

And it happened even only with bitcoin-core. Anyhow the 50/50% scenario across implementations is unlikely to happen if everyone seeing a new one cries forking wolf. I do empathize…

I've heard that argument many times and all it does is reinforce the idea that no other implementation can work. And how you end-up with an implementation mono-culture. Forks of a …