Full lifecycle view
Gateway_FinalizeBlock
Block timestamp → commit, incl. the gateway-build-block call for block #4459
Measured from on-chain timestamps only: the EVM block timestamp, which the producer chose when it planned the block (whole seconds), and the record time (commit) of the Gateway_FinalizeBlock transaction; a commit that reads slightly before the block timestamp (rounding) shows as 0. The gateway-build-block external call runs inside that transaction and is not timed on its own; the import into the execution layers follows the commit and its time is not observable here, so those steps are markers without a duration.
Total
439ms
Block → Canton commit
439ms
block timestamp → record time (±1s)
Measured from on-chain timestamps: the EVM block timestamp, chosen when the producer planned the block, and the record time (commit) of the Gateway_FinalizeBlock transaction. The block timestamp is whole seconds and follows Canton's ledger time, so the span carries up to ±1s of rounding; a commit that reads slightly before the block timestamp shows as 0.
0xf8ac038519bacaa8af82c140945401b2c5abee22eb1a8ce4fefbf1c4f02f03d10280b844095ea7b300000000000000000000000043eadb5497cbf99cf95b4d4d4e77c06034dfa66a0000000000000000000000000000000000000000000069e10de76676d0800000831c946ea02df4f5933c12055cf508c8c9621cc8cc156e2ca311bba31ed1aa3dcff378648da00f2cbbf10bdd7b923ff60d7464a67b601560d72058a7d357625e086dd39e69e7