Full lifecycle view
Gateway_FinalizeBlock
Block timestamp → commit, incl. the gateway-build-block call for block #160821
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
635ms
Block → Canton commit
635ms
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.
0xf8ac03858bb2c970088286d694beede27adc78c973ff5d41a475c07cb8601074d280b84440c10f190000000000000000000000003318c3b198bd8d2ed47d7bd14d454a32eb703ecd00000000000000000000000000000000000000000000003635c9adc5dea00000831c946ea041e70ed5c1f7dd54289a8fd35d78adfa38327d6ca762ae4cdf93f5042ce418aea0609582f28144413a86a0b4426d5c5b001549de257be7e1f8467c5b2f52dc8564