What Regex to use to identify a Block Hash

Question

I'm trying to identify if a URL component includes a bitcoin block hash, which looks like 000000000d32098b5faf86d17cb6e1828ac98f3b104f019dd78bfc9fdc1ae7b0

I wanted to know what regex I can use to identify this. Can somebody help me out?

Answer 1

Blockhashes are always 64 characters in length.

You can use the following regex to identify the block hash

/^[0-9a-f]{64}$/i

To know more, visit: https://en.bitcoin.it/wiki/Block_hashing_algorithm