Full lifecycle view
Gateway_FinalizeBlock
Block timestamp → commit, incl. the gateway-build-block call for block #155990
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
484ms
Block → Canton commit
484ms
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.
0xf8ab478459682f00827e90942a258dba931b0ed7d37bb7b7fdfc67b552393fba80b844a9059cbb0000000000000000000000006ccf5358432877f770e1ddc3d120ef68d7726e0900000000000000000000000000000000000000000000021e19e0c9bab2400000831c946ea03eb97cfd16931ded3bb8b528b681885c3d1d8915021973f63f7c52e87908b3d6a02a7aac9303c900fe7ffa8934b3a6a32b58a80af54fad73675e8eb767038806ad