The OP_RETURN limit has been 80 bytes since Bitcoin Core version 0.12

https://bitcoin.org/en/release/v0.12.0

https://github.com/bitcoin/bitcoin/blob/2e8ec6b338a825a7155fff1be83993e3834ab655/src/policy/policy.h#L72

PS: I hate ordinals and inscription but in the end... let the free market decide how the block space is used as long as the users pay for it.

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👍 So it was about datacarrier size and not about whirlpool.

Luke is lying