Full lifecycle view
Gateway_FinalizeBlock
Block timestamp → commit, incl. the gateway-build-block call for block #16919
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
12ms
Block → Canton commit
12ms
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.
0xf86f19858bb2c970088252089415f17c95c4751ee8f43f2b28573879edacb0ef3e880de0b6b3a764000080831c946da092348a2271e807647c3a5e5684a927da25ce61ec425a5305a928f6e6ca4b3a74a0180ed0e435dd17446c92bbf1f8687f0d9ef30f7edb92f401182c3f1c9dae3cda