Full lifecycle view
Gateway_FinalizeBlock
Block timestamp → commit, incl. the gateway-build-block call for block #199409
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
457ms
Block → Canton commit
457ms
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.
0x02f8b3830e4a2507843b9aca0e843b9aca0e8301668194a2a3d089b964ff5777b68770003c4c8bc71d958e80b84440c10f190000000000000000000000004d6fec3d5dba3b9219666f14617ef5eda2aca66a000000000000000000000000000000000000000000000000000000004d6fec3dc080a0af660ec8954d346b317c5f7ac79b69eb3116cdcf3e9b261b03aa82844df62fd6a025ca862e0fb82d1c6bc543e97248a0a0444c9ed253f2bff17ca12222e9db2b0e