Tiamat writes “I’m looking for a way to store information (few bytes) in a Tezos transaction, on BTC I’m using OP_RETURN field but is there a similar field in Tezos transactions ?”
Arthur replied “… it wouldn’t be a bad idea to add native support for a memo field in transactions in future protocol versions.”
A memo field would extend the functionality of Tezos by a lot without much code change. It would help create easy integration points and allow Tezos to act more like a database. The link above describes that we currently need to jump through many hoops for something that could be taken care of by a simple memo field. Bitcoin and many other coins have this native ability including our competition Algorand. I highly advise this be added to a future protocol version before developers discover the power of the memo field in other coins.