Full lifecycle view
Gateway_FinalizeBlock
Block timestamp → commit, incl. the gateway-build-block call for block #4498
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
389ms
Block → Canton commit
389ms
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.
0x02f879830e4a25820c2585188122883f85188122884782520894e0dfdfc5c8eea24bdce77450c490cce8eb1a0b1b880de0b6b3a764000080c080a0db36b0035576f7ce7726af2fc0442c8fa7a97df3a33c78ee19410d8bbbbe903fa0199e34d6d23d871afb9d8ba688c9ba9f2a4df9836ee93ce6d2e5753cb06d1d20