Full lifecycle view
Gateway_FinalizeBlock
Block timestamp → commit, incl. the gateway-build-block call for block #202121
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
407ms
Block → Canton commit
407ms
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.
0x02f873830e4a250b843b9aca0e843b9aca0e825208940b24b17e3ace83a6169896b7947a36f746df3ecb8666c5dcdc100080c080a0fa6946e18846400e04c916c1d3b3ed301f093102242d2674620884f0d3e8fd9da03a18ef2d3698d2e56e7a233d481e2caba9b528afecfcad166f1e64a60b4d26d2