Full lifecycle view
Gateway_FinalizeBlock
Block timestamp → commit, incl. the gateway-build-block call for block #54174
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
396ms
Block → Canton commit
396ms
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.
0xf8718201f9858bb2c970088252089402a2980675681c84999ec10fbeeedb192c842ec5880de0b6b3a764000080831c946da03b13f34c472c248860bd37767fdb2a45f8c75a72a2bbb7f0ec5632dabbbfe8eba05694cf65a8cd0635f5da974b20fb8e814b6a4bc7b1a9743d851ffaa44ef1db4c