Full lifecycle view
Gateway_FinalizeBlock
Block timestamp → commit, incl. the gateway-build-block call for block #219481
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
637ms
Block → Canton commit
637ms
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.
0x02f874830e4a2508843b9aca0e843b9aca0e8252089461de98868e8ef9a9c27c6b585df2bd18e66357d187072b40875c03be80c080a0c22a3ef1d9fbc70d9e1e6bfd64f98251bb558f10fa47a7b711bac2509827f45da02b28167388bb30d0034f38c27552f422120b518d36955c2ffd6e865d4c2df9e2