Download and verify hash.keys
For more details on the secret keys see secrets
Verify that the secret used hashes to the hash listed for for 2012-07-20 in hash.keys
sha256(1ZFNujtEfiKhvPUhyHm4Ue1ux4pxTl5wa0UbQf7MhJF6mCvwpJHN7mOwiiL3Z91N) -> 4af6d6551aa54caf0676c01e15b74e849996fa29ffc99ab8b0ef4b2e579559b3
Verify that the hmac sha512 with secret and transaction_id hash to the bet hash
hmac_sha512(1ZFNujtEfiKhvPUhyHm4Ue1ux4pxTl5wa0UbQf7MhJF6mCvwpJHN7mOwiiL3Z91N,536a1eb071c385b0c929dbebdd56fd934b0b362efcfedfe9f03ad7c9e62fa6f8) -> 19ef53e01fca9aea4e6eefad338f564cf33289b53b26e1a8da30f62161823b43 hmac512
Verify that the first bytes of the bet hash above is the lucky number
19ef53e01fca9aea4e6eefad338f564cf33289b53b26e1a8da30f62161823b43 -> 19ef -> 6639