Full lifecycle view
Gateway_FinalizeBlock
Block timestamp → commit, incl. the gateway-build-block call for block #178291
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
405ms
Block → Canton commit
405ms
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.
0x02f8f3830e4a25378459682f008459682f0e83011029945ad07f78841072252a62fc01576308620f3cc8bd80b8847c4e560b00000000000000000000000025f6fa3db38cc200df8459b680eaa578e59dceda0000000000000000000000000000000000000000000000000000000000001f4000000000000000000000000000000000000000000000000000000000000021340000000000000000000000000000000000000000000000000000000000002904c001a06cb39eb748f820332ffc601f1e6929cb76541a94844d6de7bd4de51add85ae9ca072b967ba40dd6a05a733154c62f0b7f5b66bcca1c7a8e20727ef3bfb7be0fe02