What L2 established, and what it did not. Both fields are statements about
what was COMMITTED. Neither proves the observed tapscript was the script the
reveal executed: a single-leaf P2TR output is spendable by key path too, and
the txid commits to neither the witness nor the spend path chosen, so the
commit output's author can spend by key path, revealing no inscription, and
serve the script-path witness afterwards. Only L3 shows the witness the
chain saw, because the BIP-141 commitment covers the exact serialization.
What L2 established, and what it did not. Both fields are statements about what was COMMITTED. Neither proves the observed tapscript was the script the reveal executed: a single-leaf P2TR output is spendable by key path too, and the txid commits to neither the witness nor the spend path chosen, so the commit output's author can spend by key path, revealing no inscription, and serve the script-path witness afterwards. Only L3 shows the witness the chain saw, because the BIP-141 commitment covers the exact serialization.