I'm writing a blockchain parser and I keep running into this type of scriptPubKey in the Litecoin blockchain:
20a75ca72ffd994d2004d67b0e89015913f7352455d0111ede590430037c9fe2ac 20e664c3f6909687499d9bf13108e35306477a8d71b20655a75cbc64270416a9f2 20651b85139631645bfd68327d85af913a7e33e74433848c5facfe48368c7d1504 20604f5ced8c595af687a0e8718098c4818b7d51f2ba79cca931dc74d6cdb8c021
The length suggests they might be compressed public keys but there is no parity byte. I can look at a few dozens of these and all bytes vary, except for the prefix 20 which is the length.
Blockchair seems to parse these as 's-something' addresses, like this:
What are these addresses, and how is it doing that? I assume they artificially add the
s- because dash in not in base58, but I can't get anything to match the address to the right of it either.
I've tried the regular way of compressing other formats like this:
temp = prefix + hash160(scriptPubKey) address = base58Check(temp + checksum(temp))
With and without checksum, with and without hash160. Even scanning for all possible prefix bytes I can't get the address to the right of the dash.
I've discovered that I have to base58 something with 23 bytes to get the target length, but that's about it.
Other parsers can't seem to decode this address (see links on blockchair page itself), only blockchair.