Full lifecycle view
Gateway_FinalizeBlock
Block timestamp → commit, incl. the gateway-build-block call for block #157121
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
394ms
Block → Canton commit
394ms
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.
0xf8ab0a84579b0be28259a294b492fe8d264c824de4aa16cbc58b444a0994ca1b80b84440c10f19000000000000000000000000f2d4a1d8f782fdf3f36bbc8f82504e6e5ff7778600000000000000000000000000000000000000000000003635c9adc5dea00000831c946da0a1edb3b00ad27c050940a121b6b43da90ee09a71880b87d8c9efb5ba3e6e71a5a003c03aa6b937b7119e9dff82660a15dcfded07744c3cc856fe2b22fda92bfbfe