Full lifecycle view
Gateway_FinalizeBlock
Block timestamp → commit, incl. the gateway-build-block call for block #137854
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
325ms
Block → Canton commit
325ms
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.
0xf8ab0c84089544008259a294d129219e03f0ad695dbb10182802b82adf9ab96c80b84440c10f19000000000000000000000000558de1e4be8666ee6a961d4dab8381d85c4c6c2a00000000000000000000000000000000000000000000003635c9adc5dea00000831c946da00d9b90efa005e168502990ee6b666e471a9bf3ce73908eaf5fe53c1f5a366807a014e550f3eb581099255883694e266fd473a99dcc9464294ce331d67196e6d376