Get Bitcoin transaction id from position in dat file

Suppose we specify:The question then is, which transaction is encoded at that position of the file?

This would allow us to index inscriptions in the .dat files directly with fast C tools, and then retrive the transaction ID to get cleaner data and metadata.

It should be possible if we managed to take the information from bitcoindev.network/understanding-the-data/ and dump into an indexed SQLite database.

I tried to start things off with LevelDBDumper:but that consumed all 64 GB of RAM on P51... github.com/mdawsonuk/LevelDBDumper/issues/15

But OK, nevermind that repo, it can be done easily with the LevelDB API of any language: bitcoin.stackexchange.com/questions/121888/what-is-the-data-format-layout-for-txindex-leveldb-values. Just the data seems wrong and we don't know why.