Full lifecycle view
Gateway_FinalizeBlock
Block timestamp → commit, incl. the gateway-build-block call for block #422
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
309ms
Block → Canton commit
309ms
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.
0x02f871830e4a250284c7447f9084c7447f9982a47c940bdc06a6e12e9d33e2fb1b6b61be287b7e5c5b0b8084d09de08ac001a040d75ddf2cd85e0e3e91d083b670fe3d32c77d4fb11bcf0f87dbb8a4e3adb5c6a029dba280abfbe8a11ed42db59343f14a04961c352cfdea6058f0ce2ffab6e74b