Full lifecycle view
Gateway_FinalizeBlock
Block timestamp → commit, incl. the gateway-build-block call for block #191909
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
178ms
Block → Canton commit
178ms
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.
0xf8ac168514c268f5ef8259a294e0a45ef66d2db5e766eba1f70e21a4bf1f901b8780b84440c10f190000000000000000000000000c42fff4afda4e6386b390feea8cb52f730d230800000000000000000000000000000000000000000000003635c9adc5dea00000831c946ea0ea7b8a99d4a776dc4bd8ec637c63d4f358fc2a804422d64a6e340fced464d5a0a02d72a58627b7fdcfc1e3effb17bae02c969805d4c2fbbca1ce52fe9d7f905c7d