Full lifecycle view
Gateway_FinalizeBlock
Block timestamp → commit, incl. the gateway-build-block call for block #15638
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
139ms
Block → Canton commit
139ms
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.
0xf8ad0f85067c9027b683011e3994bea77fcbbe6178f527040c1851789412a879f46380b84440c10f1900000000000000000000000048b209dc90e1c8c6f17b8b9c532f88242c05eb8b00000000000000000000000000000000000000000000d3c21bcecceda1000000831c946ea0da056e83bf2252e2776df8442a040a987d52cdec0ffe115e7171b8c06b3ceb79a045612716ab92bc2de9f9545af2315a46805391fc5036c348d40a4444bc2170f7