Full lifecycle view
Gateway_FinalizeBlock
Block timestamp → commit, incl. the gateway-build-block call for block #18677
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
220ms
Block → Canton commit
220ms
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.
0xf8708201c9858bb2c97008825208943ce05a2b9809691b5716f9c082b817dd43342e54880de0b6b3a764000080831c946ea0ea5751ce75086b152c5c393aa1b05725e0765dcc6f3ef6390087cb56bd37406d9f2cd99a9ef3bd32c6bcd74a9b5963e07684e0b52261578064aae800d380a9ad