So...how do use a kangaroo without pub key?

Quote from: TheArchaeologist on Today at 06:44:38 AM

Quote from: paniker on Today at 06:10:25 AM

How we can recieve a pub key? try to do all without mistakes

i make a from address 16jY7qLJnxb7CHZyqBP8qca9d51gAjyXQN a pub 3EE4133D991F52FDF6A25C9834E0745AC74248A4 in hash 160, is it right or or everyone use some online stuff for it?

In case of your example you can't find the pubkey of the address 16jY7qLJnxb7CHZyqBP8qca9d51gAjyXQN. That's because it is a Pay 2 Public Key Hash address. What you tried to do I guess is a base58 decode of the address. The tool at http://gobittest.appspot.com/Address might be of help to you fur understanding purposes. Just fill in the address in the last field and you will get the values all the way to the RIPEMD-160 of the hash of the private key. But since RIPEMD and SHA are hashing algorithms that will only work in one way there is no way you can calculate the public key.

In case of a P2PKH address the public key becomes known when the address is used for an outgoing transaction. In that case for the unlocking script the public key has to be supplied and it will be checked if it hashes to the correct value. But in your case the address doesn't have any outgoing transactions so the public key is not known to anyone but the person who also has the private key.