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Has this ever happened to anyone else, or am I doing something wrong?  I have this details:

Timestamp: This is a test of the emergency broadcast system.
Unix time: 1416512906
Pubkey: 04678afdb0fe5548271967f1a67130b7105cd6a828e03909a67962e0ea1f61deb649f6bc3f4cef3 8c4f35504e51ec112de5c384df7ba0b8d578a4c702b6bf11d5f

I'm using GenesisH0, https://github.com/lhartikk/GenesisH0

It's trying all the nonces up to 4294967295 (the max of a 4 byte unsigned integer) and doesn't find a single one that produces a valid hash.

I tryed to recreate a genesis block using https://github.com/lhartikk/GenesisH0 and got errors too.

Use this method instead:

- Set your unix time in main.cpp for both testnet and main net
- Set your timestamp
- Set your nonces to 0 in main.cpp
- Compile

You'll get an error:


-Then look in your roaming folder for debug.log (in a folder named as your coin), You'll find 3 lines at the end for exemple:


- Take the Merkle Hash you got and put it in main.cpp

- Find the line in main.cpp with
- Set it to true to mine the genesis block.

- Compile (as it will mine the genesis it will take some time and maybe look frozen, don't worry).

- After, (I think you'll get "assertion failded" again) back in your debug.log. You'll find a fresh nonce (block.nNonce) and your genesis block hash (block.GetHash).

- Put them both in main.cpp, don't forget to set 0x in front of the genesis hashes (both main and testnet).

- Set the line back to false

- Check if any checkpoints are set in checkpoints.cpp and if there is, change it with your genesis hash.

- Compile again

You're good ;)

Thanks, I'm working on an automatic coin generator, so I need to automate the genesis mining process.  Compiling the source code and running it more than once is much more difficult than using a separate tool like GenesisH0.  GenesisH0 has produced multiple valid genesis hashes in my tests.  My question is, Is it more likely that GenesisH0 has a weird bug in this case, or that this specific timestamp simply has no valid hash?  Also, I can't find the string in the file main.cpp https://github.com/bitcoin/bitcoin/blob/1ee685f984bdeaac7468019c6e2cd4b7d3496aef/src/main.cpp

Oh Ok, I thought you simply wanted clone an altcoin.

You can find in coins using scrypt, X11, X13 etc..

Sorry, I don't know much about GenesisH0..

Without encouraging these types of sites directly, but still offering some assistance...

You are very much over complicating the problem here. I will give you one hint...take a look at all the tabs here and try to extrapolate what I am saying. It has nothing to do with genesis blocks, but just think about what the tabs at the top do after you get through the first screen that generates random shit

http://balls.blockexplorer.cc/paperwallet/

@Quantum_Mechanics That's alright, thanks for offering help.

@iGotSpots  They generate addresses from a random seed?  Sorry, I don't follow.  The error I'm getting is:
struct.error: 'I' format requires 0 <= number <= 4294967295

Which means that it has tried all 4294967295 possible nonces and failed to find a valid hash. 

I've confirmed that reducing the nTime by 1, to 1416512905, does successfully hash with nonce 1668111843.  It still seems that the original params are just an unlucky combination.

Interesting - it seems as if bitcoin removed the debugging feature for genesis blocks in 0.8.6.  How can I get a genesis hash with a more recent bitcoin release?

Pen and paper. :D

Thanks!  Took 357000 tries but finally found the nonce!

If you are having trouble with this hopefully you learned from the experiment.

I think the creation of the genesis block is about the easiest thing there is to running any coin  :D

Yup, just had to figure out how to print the results to the console.

2014 methods no longer work.
2017 Bitcoin / Litecoin codebase update
http://practicecoin.com/index.php/2017/04/19/genesis-block/

Are there no updated version?

I searched a lot, haven't find any.