A transaction is a cryptographically signed instruction that changes the state of the chain. Arc commits transactions under Malachite BFT consensus: once a block carries more than two thirds of the validator set's precommits it is final, permanently, and there is no confirmation window to wait out.
Contract creation — this payload is init code, not a call
Its first four bytes are the start of a constructor prologue, not a function selector. Matching them against a 4-byte directory would produce a confident and meaningless answer.
This contract's source is not verified here, so the constructor arguments cannot be separated from the code. Everything below is the init code as it was sent.