Fun fact: It is possible to create a transaction with almost 4 MB of contiguous arbitrary data even under BIP-110/RDTS rules (tested with UASF BIP-110 v0.1). SHA-256: 76462d44e25689ce1aa6d3b3749c4e249da3eaee4486e4c4c469bb5e7b1d98f2 (friends can DM for preimage)