Full lifecycle view
Gateway_FinalizeBlock
Block timestamp → commit, incl. the gateway-build-block call for block #154900
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
684ms
Block → Canton commit
684ms
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.
0xf8ab488459682f0082c14094d94654f14e6a47162bd50c66d98481a31f3a809980b844095ea7b3000000000000000000000000eee458aa6de9e2bf72b887de9218e56410bdc8fd0000000000000000000000000000000000000000000069e10de76676d0800000831c946da00414f326794cd73f7322869bb74122e4a68bd7812879b389b7a7c992d7413935a035d16f644d313f7d4e34623247cc70b13d8575ce7725993e5e08dab05c5ad90d