Perhaps you can have a look at http://freebitco.in

They have a lottery which lets you verify results.

Looks like betting and similar services are very common use cases :)

I personally wanted to do a transparent lottery (where you can verify the numbers that came out in the end), but didn’t do it yet. :)

I like that with BIP32 anyone can really be his/her own bank/payment processor while keeping some level of privacy.

A year ago I started coding a simple bet service that supported bitcoin and litecoin and coding my own solution (in PHP) seemed like a best idea to me. Unfortunately, I didn’t get to finish the project because I found out about betmoose and other sites that were more advanced. I learned a lot though, which is more valuable in the long run.

I still use the same code for other projects which run on Bit-Wasp/bitcoin-php and even wrote a quick tutorial recently on how to use it https://freedomnode.com/blog/58/generate-bitcoin-wallet-addresses-from-extended-public-key-with-php

Please let me know what you think!

Thanks, Mario.

Gergely please contact me gatomalo at uscyberlabs dot com – we may be able to work together on this.

Hi, thanks a lot for this!

I’d love to hear more what do you think could be improved on this. Can you say a bit more of how do you imagine the child wallet management from the user’s point of view?

One of the plan I have is to make it completely independent from blockchain.info and use the electrum network to get balances and send transactions. For that I’ll need to figure out a Javascript Electrum library. That would be very handy for other wallet related projects as well.