Full lifecycle view
Gateway_FinalizeBlock
Block timestamp → commit, incl. the gateway-build-block call for block #189138
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
677ms
Block → Canton commit
677ms
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.
0xf88b548459682f00830178c194d3d72804daef2c563bb2988b5f882765749c99b680a46a6278420000000000000000000000008f682ce6a40405b38318aed7fb1c30ef6ad1037a831c946ea0e96457848227ff381bca4b2be137106ae6d330591ad40e9a8a9da32459e43482a069ce754278b1307e684733da988404b5853e1d27a15f0158c3f0676daeb1c600