Use of -c or -u

[JJandre25]

Hello, thanks for the code, it is a very good program.

I am using hashes, all of this type
"c50603f1115f6f4f4857637ae44ca515c89c824f"
and I don't understand if I should use "-c" or "-u"

can you explain those inputs a bit please, like "--compression"

Thanks

[makabress]

with only hash you can't know if the address is from a compressed or uncompressed pubkey
you can't go back from hash to public key
exemple of compressed and uncompressed pubkey :
uncompressed :
04 B239B1FE68C2A602F578CBCCE3121F030C7DCF39836DF7C1D0C4A8CB13960601 FCB2F7B633C5E53A11A476464D3EFAF82379833A37288838CCF25D5D625F2791 = A92CACF0563D3F5999A8904FA51136323445702F = 1GRWiXmPGD6hPkjxFB4pawiBdfEPvcM7qc

compressed :

03 B239B1FE68C2A602F578CBCCE3121F030C7DCF39836DF7C1D0C4A8CB13960601 = F6807197798BC0FE5743AB24827117E6048BABF9 = 1PUP6ck21BbS7HJuRC59KGUJbn152Eeujd

uncompressed and compressed have the same privkey

so for your hash it's impossible to know if it's from compressed or uncompressed pubkey but i guess it's compressed just because the first transaction is from 2013 but im not sure

when you are not sure you have to search in both mode