Full lifecycle view
Gateway_FinalizeBlock
Block timestamp → commit, incl. the gateway-build-block call for block #16938
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
339ms
Block → Canton commit
339ms
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.
0xf86f1e858bb2c9700882520894b0169eb8dc36c7c12cb8d73e0d1e4e135a6849aa880de0b6b3a764000080831c946da086429c661750d4332e2f2cb93cbf78c030f20ea5e8c28bdf31e7529b6cd7ae06a0042b4fea2d313c0a96c0c1c85b84c4136cc72d8ac56811516bf438f271d428e3