Full lifecycle view
Gateway_FinalizeBlock
Block timestamp → commit, incl. the gateway-build-block call for block #15896
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
350ms
Block → Canton commit
350ms
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.
0xf88b018504d3f6400c8254ac94a2766fc6dabb3f3e56a9a4bf49f59dbc2e7b16d280a4552410770000000000000000000000000000000000000000000000000000000000000001831c946ea0f6dcedb3df83a3f15ab0999bc9bd8904d2af3cae4e457724c52a85a3ae8c8f1fa0465450e8efce90bc57fb8482d578d61e76e62d4a0a6c301a1143c0be401602e3