Full lifecycle view
Gateway_FinalizeBlock
Block timestamp → commit, incl. the gateway-build-block call for block #19551
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
730ms
Block → Canton commit
730ms
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.
0xf8ac80858bb2c970088259a294b778d58e24c877095693fc7800b3ee5834773d8080b84440c10f190000000000000000000000000cc899cdb5b9a401f4a9d68009e07528ad893a5900000000000000000000000000000000000000000000003635c9adc5dea00000831c946ea015de0af6243c09540b72890e3a71c9d3dc9dc33fe1ba6fb9b77f45a27d55d132a04ed7602b81ad5c8a7e4a38a4bc9854fa1255185702fba1c908ecb45ceb63bf88