Canton Updates/122025...ece2

Canton Update

Canton Ledger Transaction

Canton

This Gateway_FinalizeBlock transaction built EVM block #166,296 through the gateway-build-block external call and committed it with 5 transactions.

Block Lifecycle

block #166,296

EVM block settled on CantonGateway · Gateway_FinalizeBlock

0ms

500ms

1.0s

1.5s

2.0s

2.3s

Block planned

Producer plans block #166296 (block timestamp)

—

Gateway_FinalizeBlock

Block timestamp → commit, incl. the gateway-build-block call for block #166296

1.9s

Committed on Canton

Participant commits update 1220256eec…42ece2

—

Imported to the execution layers

Importer applies block #166296 from GatewayHead

—

0ms

500ms

1.0s

1.5s

2.0s

2.3s

EVM

Canton

External call

Total

Complete1.9s

1.9s

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

#166,296

Block Hash

0x23778633...ddfffd3d

Block Timestamp

Nov 12, 2026, 16:52:40 UTC

Transactions

0x47c1f570...f3e6df930x6122...566d → 0xa276...16d2Success

0x2d912fea...a959b65a0xccfe...edec → 0xd129...b96cSuccess

Overview

Update ID

1220256eec...ab42ece2

Offset

516239

Record Time

Nov 12, 2026, 16:52:41 UTC

Command ID

gw-64c9a5594...a4ef5774

Synchronizer ID

devnet::1220...dbf9acf2

Events (6)

exercisedbc022469b1fa28afd38705e2e015bb822585bea2bbdd8d3e7a8933c17050a6b7:Zenith.Gateway.Finalize:Gateway

Contract:009748698f...7679c4fb

Choice: Gateway_FinalizeBlock

Payload

{ "headCid": "001d320c1f50da243c62525a092373b38439c17c094de557eedf81d47c70229e67ca121220feba3703f5d57b160a2c5b14072410308cc8d4726eff611e74952cb0bb2edc1e", "block": { "timestamp": { "unpack": "1794502360." }, "feeRecipient": "00000000000000000000000000000000000000fe", "prelude": [], "transactions": [ "f8ac128501806f00168259a29451be323af717fdc9555254a39fe99a0cbce167ed80b84440c10f1900000000…47b0132bd55bd7f0ec1d92a070c5774bf2a4b550f662635a1ad8201b636c6d4e813063d32489c6de8a7e63f6 (174 bytes)", "f88b0b8501806f00168254ac94a2766fc6dabb3f3e56a9a4bf49f59dbc2e7b16d280a4552410770000000000…0b4327ead687746b0d7d2aa00a4991db8115ee9e8c0ee7b74aca01040d6d0bae81296ebff3b810c83b654d82 (141 bytes)", "02f871830e4a2501843b9aca0e843b9aca0e826e9f94f1f4c8bba26a6b64c49583a6abf56515f4c9c18d8084…b1cbc4a29374b175c4a63ca0567dc9655a83670f8d8dd8a3b50b085fd3f788e2e72ef1dc52627b9b7bb6aabd (116 bytes)", "f88b108501806f00168254ac94a2766fc6dabb3f3e56a9a4bf49f59dbc2e7b16d280a4552410770000000000…0205b1609b4dc45730ac71a01a00e6c071da9cdeabadb6cf4f25c88798704a1fdae289cd4eae413faeff3c1e (141 bytes)", "f8ac0a8501806f00168259a294d129219e03f0ad695dbb10182802b82adf9ab96c80b84440c10f1900000000…e65ca7ecf1e015d7cb3386a039e720ceda30f3924b632f41ad0243ca85a92b9950db8094a8d08bd55aaabb32 (174 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:001d320c1f...bb2edc1e

Choice: GatewayHead_Finalize

Payload

{ "input": { "parentHash": "b64b545f8e9901fb4ccc156cb72bc6c2211fbfc47ec4450ca8c46d8ba4ef5774", "timestamp": { "unpack": "1794502360." }, "feeRecipient": "00000000000000000000000000000000000000fe", "prelude": [], "transactions": [ "f8ac128501806f00168259a29451be323af717fdc9555254a39fe99a0cbce167ed80b84440c10f1900000000…47b0132bd55bd7f0ec1d92a070c5774bf2a4b550f662635a1ad8201b636c6d4e813063d32489c6de8a7e63f6 (174 bytes)", "f88b0b8501806f00168254ac94a2766fc6dabb3f3e56a9a4bf49f59dbc2e7b16d280a4552410770000000000…0b4327ead687746b0d7d2aa00a4991db8115ee9e8c0ee7b74aca01040d6d0bae81296ebff3b810c83b654d82 (141 bytes)", "02f871830e4a2501843b9aca0e843b9aca0e826e9f94f1f4c8bba26a6b64c49583a6abf56515f4c9c18d8084…b1cbc4a29374b175c4a63ca0567dc9655a83670f8d8dd8a3b50b085fd3f788e2e72ef1dc52627b9b7bb6aabd (116 bytes)", "f88b108501806f00168254ac94a2766fc6dabb3f3e56a9a4bf49f59dbc2e7b16d280a4552410770000000000…0205b1609b4dc45730ac71a01a00e6c071da9cdeabadb6cf4f25c88798704a1fdae289cd4eae413faeff3c1e (141 bytes)", "f8ac0a8501806f00168259a294d129219e03f0ad695dbb10182802b82adf9ab96c80b84440c10f1900000000…e65ca7ecf1e015d7cb3386a039e720ceda30f3924b632f41ad0243ca85a92b9950db8094a8d08bd55aaabb32 (174 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:000c3f39d1...fece91bb

Payload

{ "chainId": { "zeo": "zeo::12204a88976da02f8d43c894dbbbf1d606d82c06d7f73504ec2aa030e88530667974", "version": "64c9a5594fdc9ca81066357699ac446bee6936b5a7f52c88238ddfbb82ac0979" }, "deploymentId": "64c9a5594fdc9ca81066357699ac446bee6936b5a7f52c88238ddfbb82ac0979", "deploymentCid": "0071e5cc368ecfcd19992d2e141e4029742709aca0baaa02e0ec340e4040f5c689ca121220e48eea45aba814eb0e5186eb92759c4541e5d586e32f373cca056340b5a941a4", "blockCid": "00f0ec287b2f0dbfb754ec4665c42806e7e0af512f29d816b182c78cfdf9ff3e39ca1212204dad8376890aace6c8a319e452a74bece8ff9bc829fbea17e7938aa7ec87d0e8", "hash": "23778633acc00e741a985a1b11a9f7a8d37753c2a6824c016cc9ff3dddfffd3d", "number": "166296", "timestamp": "1794502360", "nextWithdrawalIndex": "5", "committed": { "headerRlp": "f90279a0b64b545f8e9901fb4ccc156cb72bc6c2211fbfc47ec4450ca8c46d8ba4ef5774a01dcc4de8dec75d…0000000000000000000000a0e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855 (636 bytes)", "envelopes": [ "f8ac128501806f00168259a29451be323af717fdc9555254a39fe99a0cbce167ed80b84440c10f1900000000…47b0132bd55bd7f0ec1d92a070c5774bf2a4b550f662635a1ad8201b636c6d4e813063d32489c6de8a7e63f6 (174 bytes)", "f88b0b8501806f00168254ac94a2766fc6dabb3f3e56a9a4bf49f59dbc2e7b16d280a4552410770000000000…0b4327ead687746b0d7d2aa00a4991db8115ee9e8c0ee7b74aca01040d6d0bae81296ebff3b810c83b654d82 (141 bytes)", "02f871830e4a2501843b9aca0e843b9aca0e826e9f94f1f4c8bba26a6b64c49583a6abf56515f4c9c18d8084…b1cbc4a29374b175c4a63ca0567dc9655a83670f8d8dd8a3b50b085fd3f788e2e72ef1dc52627b9b7bb6aabd (116 bytes)", "f88b108501806f00168254ac94a2766fc6dabb3f3e56a9a4bf49f59dbc2e7b16d280a4552410770000000000…0205b1609b4dc45730ac71a01a00e6c071da9cdeabadb6cf4f25c88798704a1fdae289cd4eae413faeff3c1e (141 bytes)", "f8ac0a8501806f00168259a294d129219e03f0ad695dbb10182802b82adf9ab96c80b84440c10f1900000000…e65ca7ecf1e015d7cb3386a039e720ceda30f3924b632f41ad0243ca85a92b9950db8094a8d08bd55aaabb32 (174 bytes)" ], "withdrawals": [], "requests": [], "blobHashes": [] }, "observers": { "map": [ [ "operator::1220b64aeea8abe20728a6f60d66d6a57212ca9ba2f8d3b7a45bf8dd4de6932eeff2", {} ] ] } }

createdbc022469b1fa28afd38705e2e015bb822585bea2bbdd8d3e7a8933c17050a6b7:Zenith.Gateway.Finalize:Gateway

Contract:0098928db0...1eb8474a

Payload

{ "chainId": { "zeo": "zeo::12204a88976da02f8d43c894dbbbf1d606d82c06d7f73504ec2aa030e88530667974", "version": "64c9a5594fdc9ca81066357699ac446bee6936b5a7f52c88238ddfbb82ac0979" }, "deploymentId": "64c9a5594fdc9ca81066357699ac446bee6936b5a7f52c88238ddfbb82ac0979", "deploymentCid": "0071e5cc368ecfcd19992d2e141e4029742709aca0baaa02e0ec340e4040f5c689ca121220e48eea45aba814eb0e5186eb92759c4541e5d586e32f373cca056340b5a941a4", "currentHeadCid": "000c3f39d12c91ddaae72545385e3fe09758330befa6046ec2605e133b9091edb9ca121220dcd57ee43bb587dd63f9b4e2e0e295a16347a053bcb4d2ae30dfbc36fece91bb", "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": "11002004249999858815186526.", "matchedSinkWei": "15600000002000000000.", "wzthOutstandingWei": "11350000000000000000." } }, "tokenState": { "registered": [ [ "285fb55cf094a2a9e80c26c0d726f1c9b86b86f2", "CantonOrigin" ], [ "4feb549aa9608fa13c2e9366df7dd38b267e0d46", "CantonOrigin" ], [ "a4923804940ba9accefe23402ef1f793bf9cd473", "CantonOrigin" ], [ "d238579f5a5c184fe423d68dcf245c2e86ca60e9", "EvmOrigin" ] ] } }