Full lifecycle view
Gateway_FinalizeBlock
Block timestamp → commit, incl. the gateway-build-block call for block #157255
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
414ms
Block → Canton commit
414ms
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.
0x02f877830e4a25018503a95228728503a952287282520894b0e254b7b3dc08cd31d9a6f063ba01a81c26541e88016345785d8a000080c080a02e71b28a814896cf25e12fc572bf4cfd47ed53cbf9b1ba88d36f59a3b32bca99a00e8da8130d71326d91bfacc0f8b0ce1e71c11a6596ea7e61c396e120a6a0c197