Full lifecycle view
Gateway_FinalizeBlock
Block timestamp → commit, incl. the gateway-build-block call for block #189801
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
387ms
Block → Canton commit
387ms
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.
0xf8ac15852b0bf5e8a98259a29451be323af717fdc9555254a39fe99a0cbce167ed80b84440c10f190000000000000000000000009e0b8ced0f0de43ac8c2b8e12b9acf9e691944a200000000000000000000000000000000000000000000003635c9adc5dea00000831c946ea0c1360a85ae432203939fdcdcfedaf5586de2c39f4f1573cbe51b0f882ee98558a033385e5ec56aff6d1678b38571b5632c3a3b1d900be2922f8131a69b1a590bd9