Full lifecycle view
Gateway_FinalizeBlock
Block timestamp → commit, incl. the gateway-build-block call for block #178178
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
245ms
Block → Canton commit
245ms
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.
0xf8ab0b84015288f08259a294b492fe8d264c824de4aa16cbc58b444a0994ca1b80b84440c10f19000000000000000000000000075084b6a74a33cb43089d78934875d6ffa7748d00000000000000000000000000000000000000000000003635c9adc5dea00000831c946da051acb1e0f55c4bbf103dec3f5ccff3cf2300223136ee707a6b9e2c755b729d1da001023899633a93ba533d7deed7755647c6b4ac563f184fbf19b3da8ffd34a533