Full lifecycle view
Gateway_FinalizeBlock
Block timestamp → commit, incl. the gateway-build-block call for block #8553
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
269ms
Block → Canton commit
269ms
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.
0x02f879830e4a25821831851d67c309e6851d67c309ee82520894e6d1a864c3ddaa45fa2a251970d2e7f9d6ff8e31880de0b6b3a764000080c001a0ac132343177dbe3412b006c7bdf5e364dfc0467b61fd4d8969afa9897336877aa0671381736a923cb60950cee8e8d606b0e3ed26d3daad205a4a8a10e438854383