Full lifecycle view
Gateway_FinalizeBlock
Block timestamp → commit, incl. the gateway-build-block call for block #199406
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
297ms
Block → Canton commit
297ms
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.
0x02f8b2830e4a2504843b9aca0e843b9aca0e82869294dcea6108510190c9511292cb977360ba667d0fea80b84440c10f190000000000000000000000004d6fec3d5dba3b9219666f14617ef5eda2aca66a00000000000000000000000000000000000000000000003635c9adc5dea00000c080a0fc8cf8e8bf03da1ab2774ffc7fb129bcd746ad9f6362c593b209aadc1e10103da0073ef41b6fb472c6bc23766ff3373c75eecebe9ad092990a8c6ff17d15ed0eb7