Canton Update

Canton Ledger Transaction

Canton

This Gateway_FinalizeBlock transaction built EVM block #16,855 through the gateway-build-block external call and committed it with 5 transactions.

Block Lifecycle

block #16,855

EVM block settled on CantonGateway · Gateway_FinalizeBlock

0ms

500ms

1.0s

1.5s

2.0s

2.5s

2.9s

Block planned

Producer plans block #16855 (block timestamp)

—

Gateway_FinalizeBlock

Block timestamp → commit, incl. the gateway-build-block call for block #16855

2.3s

Committed on Canton

Participant commits update 1220a7baec…148e03

—

Imported to the execution layers

Importer applies block #16855 from GatewayHead

—

0ms

500ms

1.0s

1.5s

2.0s

2.5s

2.9s

EVM

Canton

External call

Total

Complete2.3s

2.3s

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.

Settled EVM Block

Block

#16,855

Block Hash

0xb1c02392...352e7aa3

Block Timestamp

Nov 3, 2026, 19:15:09 UTC

Transactions

0x61cfb8b2...123b35040x0dfa...0cee → 0x8fb1...8268Success

0x043ddfd1...da028c260xaaac...d31f → 0x5345...9be7Success

Overview

Update ID

1220a7baec...eb148e03

Offset

54733

Record Time

Nov 3, 2026, 19:15:11 UTC

Command ID

gw-64c9a5594...9ec354b7

Synchronizer ID

devnet::1220...dbf9acf2

Events (6)

exercisedbc022469b1fa28afd38705e2e015bb822585bea2bbdd8d3e7a8933c17050a6b7:Zenith.Gateway.Finalize:Gateway

Contract:00111ba98e...549c40f7

Choice: Gateway_FinalizeBlock

Payload

{ "headCid": "00d1da4fa1eba18b84ec513b9c1727a795c5d62a22969ea3454a55a4e924a2b8b9ca1212206fdd2d48c72f96233d3f1b70f05342a35e49728d209cdc7c44f7546a936997bf", "block": { "timestamp": { "unpack": "1793733309." }, "feeRecipient": "00000000000000000000000000000000000000fe", "prelude": [], "transactions": [ "f87082014085746a528807825208948fb151bc99f8e39e74cea3c4a6106e8cf89482688711c37937e0800080…fa937a9e62044a330a776fa0392335e001a50a6551c46fbcede67b09675548b8e54d58952d91fcf79f51c944 (114 bytes)", "f8ac80858bb2c970088259a2945345a589ea2a5896673ff13987bcda49d3569be780b84440c10f1900000000…ddb017dc7ab7ed34fb5b05a073e6fce36ca8a2de1917f72d290261675c796d0819b53ef993dacb0d3f62b561 (174 bytes)", "f8ac80858bb2c970088259a2940db987998cdceb19be8b3dd513f173fb1c32fe8980b84440c10f1900000000…327e499a9c75f246cddba5a01d4185140fd0bf2eb705d0d65e803da03cbe34e9b9804db374c047358fb13d89 (174 bytes)", "f88b01858bb2c970088254ac94a2766fc6dabb3f3e56a9a4bf49f59dbc2e7b16d280a4552410770000000000…3a550090c53d2100d09206a0796d1e9c42e45ab01f6437ae522639d2cff41e6d9578f7078e469ac6dd3b2249 (141 bytes)", "02f875830e4a258084a0eebb0084a0eebb1582520894fe3a99a761d9fd2b891231f561ed8fba1dd4db13880d…1138611ca9090c780f9659a047c6ee43350253fcbb97b66dc8915687b8ffb52edc4f112fc9da9e17309ba424 (120 bytes)" ], "epilogue": [], "indexing": [], "rotation": null, "refunds": [] }, "nativePlan": { "credits": [], "collections": [], "settlement": { "tag": "ZthSettlement", "value": {} } }, "tokenPlan": { "routes": [], "wrapperRegistrations": [], "originalRegistrations": [], "metadataUpdates": [], "mints": [], "releases": [], "wrapperCollections": [], "backingInputs": [], "custodyMerges": [], "originalCollections": [], "consolidations": [], "consolidationAccepts": [], "consolidationWithdrawals": [] } }

exercisedf34c7bd9ec0c052bdc5622cf5ab34cf12bc64869829037ee4d7540b189ea7085:Zenith.Evm.Gateway:GatewayHead

Contract:00d1da4fa1...936997bf

Choice: GatewayHead_Finalize

Payload

{ "input": { "parentHash": "b15b5cbc2872eaf73e21d20052785f898d9441e3f803869f07786f569ec354b7", "timestamp": { "unpack": "1793733309." }, "feeRecipient": "00000000000000000000000000000000000000fe", "prelude": [], "transactions": [ "f87082014085746a528807825208948fb151bc99f8e39e74cea3c4a6106e8cf89482688711c37937e0800080…fa937a9e62044a330a776fa0392335e001a50a6551c46fbcede67b09675548b8e54d58952d91fcf79f51c944 (114 bytes)", "f8ac80858bb2c970088259a2945345a589ea2a5896673ff13987bcda49d3569be780b84440c10f1900000000…ddb017dc7ab7ed34fb5b05a073e6fce36ca8a2de1917f72d290261675c796d0819b53ef993dacb0d3f62b561 (174 bytes)", "f8ac80858bb2c970088259a2940db987998cdceb19be8b3dd513f173fb1c32fe8980b84440c10f1900000000…327e499a9c75f246cddba5a01d4185140fd0bf2eb705d0d65e803da03cbe34e9b9804db374c047358fb13d89 (174 bytes)", "f88b01858bb2c970088254ac94a2766fc6dabb3f3e56a9a4bf49f59dbc2e7b16d280a4552410770000000000…3a550090c53d2100d09206a0796d1e9c42e45ab01f6437ae522639d2cff41e6d9578f7078e469ac6dd3b2249 (141 bytes)", "02f875830e4a258084a0eebb0084a0eebb1582520894fe3a99a761d9fd2b891231f561ed8fba1dd4db13880d…1138611ca9090c780f9659a047c6ee43350253fcbb97b66dc8915687b8ffb52edc4f112fc9da9e17309ba424 (120 bytes)" ], "epilogue": [], "withdrawals": [], "logFilter": { "addresses": [ "00000000000000000000000000000000000a7e00", "50d0eea5a51b1d262b295f9978ed2e2e02a5a5a3", "f52aba48533156e0180d6f8e6d9a474fa06a90cf" ], "topics0": [] }, "inboxScan": { "gateway": "00000000000000000000000000000000000a7e00", "inboxInitCodeHash": "704985d1ae018e94b3983882895f10ada607c5793c727fdacc1e48b35d65e92c", "runtimeTemplateHash": "f5300aee21aca6c1c1489b43d775454f1392a77df3058f0b2a82e065edbdf345", "immutables": [ { "offset": "278", "size": "32" }, { "offset": "373", "size": "32" }, { "offset": "651", "size": "32" }, { "offset": "758", "size": "32" }, { "offset": "120", "size": "32" } ], "saltOffset": "120", "nativeTopics": [ "8d6cc7bec951dd15d11af1a0ac06bbb8d190c277b0d7ce020da1ffc89b8655e2" ], "tokens": [ "285fb55cf094a2a9e80c26c0d726f1c9b86b86f2", "4feb549aa9608fa13c2e9366df7dd38b267e0d46", "a4923804940ba9accefe23402ef1f793bf9cd473", "d238579f5a5c184fe423d68dcf245c2e86ca60e9" ] } } }

createdf34c7bd9ec0c052bdc5622cf5ab34cf12bc64869829037ee4d7540b189ea7085:Zenith.Evm.Gateway:GatewayHead

Contract:0055893dcd...975413db

Payload

{ "chainId": { "zeo": "zeo::12204a88976da02f8d43c894dbbbf1d606d82c06d7f73504ec2aa030e88530667974", "version": "64c9a5594fdc9ca81066357699ac446bee6936b5a7f52c88238ddfbb82ac0979" }, "deploymentId": "64c9a5594fdc9ca81066357699ac446bee6936b5a7f52c88238ddfbb82ac0979", "deploymentCid": "0071e5cc368ecfcd19992d2e141e4029742709aca0baaa02e0ec340e4040f5c689ca121220e48eea45aba814eb0e5186eb92759c4541e5d586e32f373cca056340b5a941a4", "blockCid": "00050618599a6cc4dc6e75f7bce26c9529bcfb844e139d3038a8275fe9b19a2aedca121220e5d7b6625255734d06e7e3e633daa11286f146fa971915dd49489a09c57e14e3", "hash": "b1c02392f6df3232c8d8ae9c9a02b747904d46e7fcc280b09713389f352e7aa3", "number": "16855", "timestamp": "1793733309", "nextWithdrawalIndex": "5", "committed": { "headerRlp": "f90278a0b15b5cbc2872eaf73e21d20052785f898d9441e3f803869f07786f569ec354b7a01dcc4de8dec75d…0000000000000000000000a0e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855 (635 bytes)", "envelopes": [ "f87082014085746a528807825208948fb151bc99f8e39e74cea3c4a6106e8cf89482688711c37937e0800080…fa937a9e62044a330a776fa0392335e001a50a6551c46fbcede67b09675548b8e54d58952d91fcf79f51c944 (114 bytes)", "f8ac80858bb2c970088259a2945345a589ea2a5896673ff13987bcda49d3569be780b84440c10f1900000000…ddb017dc7ab7ed34fb5b05a073e6fce36ca8a2de1917f72d290261675c796d0819b53ef993dacb0d3f62b561 (174 bytes)", "f8ac80858bb2c970088259a2940db987998cdceb19be8b3dd513f173fb1c32fe8980b84440c10f1900000000…327e499a9c75f246cddba5a01d4185140fd0bf2eb705d0d65e803da03cbe34e9b9804db374c047358fb13d89 (174 bytes)", "f88b01858bb2c970088254ac94a2766fc6dabb3f3e56a9a4bf49f59dbc2e7b16d280a4552410770000000000…3a550090c53d2100d09206a0796d1e9c42e45ab01f6437ae522639d2cff41e6d9578f7078e469ac6dd3b2249 (141 bytes)", "02f875830e4a258084a0eebb0084a0eebb1582520894fe3a99a761d9fd2b891231f561ed8fba1dd4db13880d…1138611ca9090c780f9659a047c6ee43350253fcbb97b66dc8915687b8ffb52edc4f112fc9da9e17309ba424 (120 bytes)" ], "withdrawals": [], "requests": [], "blobHashes": [] }, "observers": { "map": [ [ "operator::1220b64aeea8abe20728a6f60d66d6a57212ca9ba2f8d3b7a45bf8dd4de6932eeff2", {} ] ] } }

createdbc022469b1fa28afd38705e2e015bb822585bea2bbdd8d3e7a8933c17050a6b7:Zenith.Gateway.Finalize:Gateway

Contract:00e19724af...fc67365f

Payload

{ "chainId": { "zeo": "zeo::12204a88976da02f8d43c894dbbbf1d606d82c06d7f73504ec2aa030e88530667974", "version": "64c9a5594fdc9ca81066357699ac446bee6936b5a7f52c88238ddfbb82ac0979" }, "deploymentId": "64c9a5594fdc9ca81066357699ac446bee6936b5a7f52c88238ddfbb82ac0979", "deploymentCid": "0071e5cc368ecfcd19992d2e141e4029742709aca0baaa02e0ec340e4040f5c689ca121220e48eea45aba814eb0e5186eb92759c4541e5d586e32f373cca056340b5a941a4", "currentHeadCid": "0055893dcde0a7d5ed17bd0b524aefe320a63a579e9c7cc244c60cdcdd2c56a344ca121220b432ad0d886fd8f4d2c281f827605845b02484452d254af19fe437e6975413db", "operator": "operator::1220b64aeea8abe20728a6f60d66d6a57212ca9ba2f8d3b7a45bf8dd4de6932eeff2", "params": { "capacity": { "native": { "laneGas": "5760000", "laneEntries": "64", "withdrawals": "512", "collections": "64", "scanTokens": "0" }, "token": { "laneGas": "8000000", "laneEntries": "64", "withdrawals": "0", "collections": "32", "scanTokens": "1024" }, "indexing": { "laneGas": "1880000", "laneEntries": "4", "withdrawals": "0", "collections": "0", "scanTokens": "0" } }, "laneMaxFeePerGas": "1000000000000.", "deployInboxGasBound": "470000", "rotateLaneGasBound": "40000", "rotateRecoveryGasBound": "40000", "native": { "tag": "ZthNative", "value": { "wzthInstrument": { "admin": "r-635d45b53c561ec7a462ab7a0511468ae5df3443eb2add2b161255bb95b612ad::12204a88976da02f8d43c894dbbbf1d606d82c06d7f73504ec2aa030e88530667974", "id": "erc20:50d0eea5a51b1d262b295f9978ed2e2e02a5a5a3" }, "wzthRegistrar": "r-635d45b53c561ec7a462ab7a0511468ae5df3443eb2add2b161255bb95b612ad::12204a88976da02f8d43c894dbbbf1d606d82c06d7f73504ec2aa030e88530667974", "genesisSupplyWei": "11002000000000000000000000." } }, "nativeGasBounds": { "collectNative": "90000" }, "tokenGasBounds": { "registerWrapper": "830000", "setWrapperMetadata": "100000", "registerOriginal": "340000", "mint": "110000", "release": "100000", "collectWrapper": "90000", "collectOriginal": "120000" } }, "keys": { "lane": "24075d3562802b90a3aaa567f1bb8ec1fbab83bf", "recovery": "61295be4a97cb7861dfdbede9c8b34d27030897e" }, "nativeState": { "tag": "ZthNativeState", "value": { "evmSupplyWei": "11002004249999992164586605.", "matchedSinkWei": "15600000002000000000.", "wzthOutstandingWei": "11350000000000000000." } }, "tokenState": { "registered": [ [ "285fb55cf094a2a9e80c26c0d726f1c9b86b86f2", "CantonOrigin" ], [ "4feb549aa9608fa13c2e9366df7dd38b267e0d46", "CantonOrigin" ], [ "a4923804940ba9accefe23402ef1f793bf9cd473", "CantonOrigin" ], [ "d238579f5a5c184fe423d68dcf245c2e86ca60e9", "EvmOrigin" ] ] } }