Full lifecycle view
Gateway_FinalizeBlock
Block timestamp → commit, incl. the gateway-build-block call for block #191422
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
647ms
Block → Canton commit
647ms
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.
0xf8ac12858bb2c970088259a29451be323af717fdc9555254a39fe99a0cbce167ed80b84440c10f19000000000000000000000000303239383f143ae560d0c360be45ef056b94c3e400000000000000000000000000000000000000000000003635c9adc5dea00000831c946ea0e8bce4a97ce0f27a0fa2f0de2bf2e3a810ffc2f49f269f62204fa20a2f6d6cafa02a375109d44a422fc538d88833a2b7b7b298e9baeb9759a7db055f1f9b5c46ec