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Wait wait wait, did Judaism invent the basic concept of a checksum?
That is… very interesting. I know numerology and the like are very popular parts of Jewish occultism.
It’s not specific to Judaism, any oral tradition relies on the length of a sentence and rhyming and repetitions to make sure you got the right phrasing. That’s how you come up with poetry and alexandrine and all that, everyone uses it.
Wouldn’t go quite that far, but given you needed to be relatively educated to qualify for the task it wouldn’t surprise me to learn there were some acceptable tricks for catching or preventing errors that we would recognize as parity checks.