Full lifecycle view
Gateway_FinalizeBlock
Block timestamp → commit, incl. the gateway-build-block call for block #178608
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
656ms
Block → Canton commit
656ms
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.
0xf86b0c835e7a9982520894cd19907545ed200ab4aa8043af4b18bb1ec66bda865af3107a400080831c946ea0a2b48c2f21bfebba2c3c8ecf2da61ae0d62b0aaf7e3d5adaf08eda5f773b852fa06f8e3eea810c8bb8d62843e5a8d42de23324f1f38874da8b00c2901ef3df38e3