getSignaturesForAddress not fetching some signatures

Question

Token contract: 6ogzHhzdrQr9Pgv6hZ2MNze7UrzBMAFyBBWUYp1Fhitx

I am trying to fetch history of transfers for this token.

My request:

{
    "jsonrpc": "2.0",
    "id": 1,
    "method": "getSignaturesForAddress",
    "params": [
        "6ogzHhzdrQr9Pgv6hZ2MNze7UrzBMAFyBBWUYp1Fhitx",
        {
            "before":"3LuEcMhbSAgdJJrNRG97GpfQH2wWLo3PqfXmrmvz6NnKyBMboWwpjjQeb26u6wjNQfHmrnhxgyd15cDTmwVZdFQu",
            "commitment":"confirmed"
        }
    ]
}

If we filter out signatures with errors, here are 3 closest signatures that we receive in response:

2B7YYTvMJXSeqJCfmFTDRV2cDNH9HfyHApwdNCYqzfwgAE7fiao51gKA8CXYNNe3QECnEW9fJFzFCLL12iqHzhWg 3ma9TbKhDoZkYi7oVWEj7Ku8MGCpWETJtCaUWWht92njJmZtnWG6PZwM8QzaTBUPiHnTxyvb5ujZWEnD6ns2nbd6 3AbVBYo3cWvouWTLM6kr7JLgYJfpYzcpKp8fAWNgdnxudboPGRU8tgKBMXDDjuCMVSVQxzsBQTaT527wqihPHWDP

However, if we check transfer history on something like solscan.io, we will see that there is one signature that is missing: 26kzWS1NBWPYLGEZELEXAMHKGzTQ6LSHKkBHNhyHGKibKSWcGe5LZ2QYgrUEYpwzL8CB5reKA7FYqnyxJui13vYT

Please help me figure out why this signature is missing when I am fetching data using RPC API.

Answer 1

This is a guess, but the token mint account at 6ogzHhzdrQr9Pgv6hZ2MNze7UrzBMAFyBBWUYp1Fhitx isn't required to do a transfer between two token accounts, but solscan may be doing extra indexing to include all transactions for that mint, even though it wasn't included in the transaction. You might want to try the solscan API to see if it returns the extra transactions.

If you look at the missing transaction: https://explorer.solana.com/tx/26kzWS1NBWPYLGEZELEXAMHKGzTQ6LSHKkBHNhyHGKibKSWcGe5LZ2QYgrUEYpwzL8CB5reKA7FYqnyxJui13vYT

You'll see that it doesn't include the 6ogzHhzdrQr9Pgv6hZ2MNze7UrzBMAFyBBWUYp1Fhitx address