Full lifecycle view
Gateway_FinalizeBlock
Block timestamp → commit, incl. the gateway-build-block call for block #149578
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
634ms
Block → Canton commit
634ms
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.
0x02f875830e4a2581b1843b9aca0e843b9aca0e82520894f612b9ac44f524d660f9e4b819016471a650d57d870e35fa931a000080c001a04b0d3ef9ed079f06ed2da1c50da56df2a49d32fdb04a3381573f91c54062f8f9a05d84a0b0f59657d6f125fa6d06f821c84616c3498606e8b52969a75c8bc3528c