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Title: Doubts about scriptPubKey Post by: fabbit on January 24, 2020, 07:42:22 PM A scriptPubKey is (invented):
Code: "scriptPubKey" : {Title: Re: Doubts about scriptPubKey Post by: DannyHamilton on January 24, 2020, 08:09:32 PM Code: "asm" : "OP_DUP OP_HASH160 7d7 OP_EQUALVERIFY OP_CHECKSIG", That depends on what you mean by hash() 7d7 should already be the result of RIPEMD-160(SHA-256(public key)) To get from that hash value to the associated P2PKH address, you need to: 1. Add a version byte to the front of 7d7, resulting in 007d7 2. Calculate a checksum (the first 4 bytes of: SHA-256(SHA-256(007d7)) 3. Add the 4 byte checksum to the end of the 007d7, resulting in 007d7GGGGGGGG (where GGGGGGGG is the 4 byte checksum from step 2) 4. Convert the result from a byte string into a base58 string using Base58Check encoding. The result of that would be d8d More information here: https://en.bitcoin.it/wiki/Technical_background_of_version_1_Bitcoin_addresses#How_to_create_Bitcoin_Address Title: Re: Doubts about scriptPubKey Post by: nc50lc on January 25, 2020, 04:04:03 AM 2. Calculate a checksum (the first 4 bytes of: SHA-256(SHA-256(007d7)) This is new to me, I though it will add '0' in front of 007d7 to be valid because it's odd-digit; instead, it resulted to 'G....'3. Add the 4 byte checksum to the end of the 007d7, resulting in 007d7GGGGGGGG 7d7 If you want to put a random value, it should be 20 byte HEX or 40 (1-0, a-f) characters.Title: Re: Doubts about scriptPubKey Post by: pooya87 on January 25, 2020, 04:22:26 AM This is new to me, I though it will add '0' in front of 007d7 to be valid because it's odd-digit; instead, it resulted to 'G....' all the values here are fake, so something like foo and bar should have been used instead! by the way 0 is the "address version byte" that is added to the hash to get version 1 (P2PKH) addresses. |