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F9 BE B4 D9 1D 01 00 00 01 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 3B A3 ED FD 7A 7B 12 B2 7A C7 2C 3E 67 76 8F 61 7F C8 1B C3 88 8A 51 32 3A 9F B8 AA 4B 1E 5E 4A 29 AB 5F 49 FF FF 00 1D 1D AC 2B 7C 01 01 00 00 00 01 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 FF FF FF FF 4D 04 FF FF 00 1D 01 04 45 54 68 65 20 54 69 6D 65 73 20 30 33 2F 4A 61 6E 2F 32 30 30 39 20 43 68 61 6E 63 65 6C 6C 6F 72 20 6F 6E 20 62 72 69 6E 6B 20 6F 66 20 73 65 63 6F 6E 64 20 62 61 69 6C 6F 75 74 20 66 6F 72 20 62 61 6E 6B 73 FF FF FF FF 01 00 F2 05 2A 01 00 00 00 43 41 04 67 8A FD B0 FE 55 48 27 19 67 F1 A6 71 30 B7 10 5C D6 A8 28 E0 39 09 A6 79 62 E0 EA 1F 61 DE B6 49 F6 BC 3F 4C EF 38 C4 F3 55 04 E5 1E C1 12 DE 5C 38 4D F7 BA 0B 8D 57 8A 4C 70 2B 6B F1 1D 5F AC 00 00 00 00

Is this the genesis block? If so, how can I learn more about its format?

Thanks,

Dunster

Try this: https://en.bitcoin.it/wiki/Genesis_block

Thank you for the reference to the wiki,

It looks like this is the same data except that F9 BE B4 D9 precedes this data shown in the Genesis Block wiki entry. I looked "F9 BE B4 D9"  up and F9 BE B4 D9 is a "Magic value indicating message origin network, and used to seek to next message when stream state is unknown.". This seems to be the wire format of the magic value 0xD9B4BEF9.

I wonder what happens if the contents of the block are somehow contains F9 BE B4 D9. Will bitcoind interpret this as a beginning of a new block and the chain somehow gets out of sync?

Thanks,

Dunster

I'm curious about this too, have you found the answer?

I found another link in the wiki: https://en.bitcoin.it/wiki/Protocol_specification

Putting this in the header seems to mean it is in the "Main network":

• F9 BE B4 D9                          - Main network magic bytes