Full lifecycle view
Gateway_FinalizeBlock
Block timestamp → commit, incl. the gateway-build-block call for block #15939
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
790ms
Block → Canton commit
790ms
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.
0xf8ac80850c0378001a8259a29451be323af717fdc9555254a39fe99a0cbce167ed80b84440c10f19000000000000000000000000d61553d9c9343160f4d1f8d111ff1a48956663f300000000000000000000000000000000000000000000003635c9adc5dea00000831c946ea00692744f1b023325c6ce0f5315f111bf6bb9deaf1325e08bedfca37233f87cada04a8d3bf2a816aeb768ebc89ce5745570b1c464bb3422c50ac0863937214d3418