Verify event

Recorded world event

This is a recorded simulation or world event. Its hash and any Merkle proof check stored bytes. They do not make this event a blockchain transaction.

Event

Simulation CHOG #1558 began a shift at Workshop 03.

Id

778e5c2c-4…af804170778e5c2c-40df-4e7f-8856-71a2af804170Copy

Full value

778e5c2c-40df-4e7f-8856-71a2af804170

Sequence

804990

Kind

work.shift_started

Category

work

Source

simulation

Occurred (UTC)

2026-10-28T09:21:30.478243+00:00

Created (UTC)

2026-10-28T09:21:35.217272+00:00

World seconds

74589240

Citizen

1af575f2-c…deb5309c1af575f2-c06c-4f8d-ba2e-388edeb5309cCopy

Full value

1af575f2-c06c-4f8d-ba2e-388edeb5309c

Related citizen

—

Building

workshop-03

Intent

—

Decision

—

Tick

242054

Chain status

offchain

Integrity class

live

chogos-event-v1
id:778e5c2c-40df-4e7f-8856-71a2af804170
seq:804990
kind:work.shift_started
category:work
source:simulation
summary:CHOG #1558 began a shift at Workshop 03.
occurredAt:2026-10-28T09:21:30.478Z
createdAt:2026-10-28T09:21:35.217Z
worldS:74589240
tickSeq:242054
actorCitizenId:1af575f2-c06c-4f8d-ba2e-388edeb5309c
relatedCitizenId:
buildingId:workshop-03
chainStatus:offchain
chainId:
txHash:
dedupeKey:sim:1af575f2-c06c-4f8d-ba2e-388edeb5309c:13604:work.shift_started
intentId:
decisionId:
payload:{"action":"work","activity":"working","arrived":true,"buildingName":"Workshop 03","consumed":{"wood":2},"durationWorldMinutes":260,"role":"crafter","shift":1,"tokenId":"97"}
stateTransition:{}
prevEventHash:0x4743645e216b8a9e55034f957c6be336156dbbd9ff56a3251e1cff7400a1229f

Hashes

Offchain hashes stay on this page, in the canonical document, and in the JSON export. They are not explorer objects.

Stored event hash

0x80ff6e02…d7e691730x80ff6e02921f853655f9e760e9e34fa68cceba4822e9c1fbcb3769ead7e69173Copy

Full value

0x80ff6e02921f853655f9e760e9e34fa68cceba4822e9c1fbcb3769ead7e69173

Recomputed event hash

0x80ff6e02…d7e691730x80ff6e02921f853655f9e760e9e34fa68cceba4822e9c1fbcb3769ead7e69173Copy

Full value

0x80ff6e02921f853655f9e760e9e34fa68cceba4822e9c1fbcb3769ead7e69173

Previous event hash

0x4743645e…00a1229f0x4743645e216b8a9e55034f957c6be336156dbbd9ff56a3251e1cff7400a1229fCopy

Full value

0x4743645e216b8a9e55034f957c6be336156dbbd9ff56a3251e1cff7400a1229f

Next event hash

0x93f4b8a9…2f8374a20x93f4b8a9c31bd87491263f8ebdf281a92dc55a1cd7ab8d24581a762d2f8374a2Copy

Full value

0x93f4b8a9c31bd87491263f8ebdf281a92dc55a1cd7ab8d24581a762d2f8374a2

Merkle batch id

—

Merkle root

—

Merkle proof

This event is not in a Merkle batch yet.

No inclusion proof is stored for this event yet.

Leaf encoding is bytes32 in an OpenZeppelin standard tree with sortLeaves false. A valid proof matches the supplied root only.

Anchor read

This event has no Merkle batch.

No validated anchor transaction is attached to this batch.

This page reassesses the observation included in the export. It does not open a second RPC from the browser. Repeat getBatch on the recorded contract before treating the root as published. EventAnchor does not check the inclusion proof.

Source

Vercel git commit

045b3fe38d65dfe80d92f37a6772b54aceca4caa

• src/lib/verify/canonical.ts
• src/lib/verify/merkle.ts
• src/lib/verify/chain.ts
• src/lib/verify/anchor.ts
• src/lib/verify/transfer-log.ts
• src/lib/world/transfer.ts
• src/components/verify/event-verifier.tsx
• contracts/src/EventAnchor.sol

Download machine-readable export

• Recompute the SHA-256 of the chogos-event-v1 canonical document from event. Do not trust serverRecomputedHash or any status label.
• Compare that digest to storedHash.
• When previous and next are present, check that the live hash chain links match.
• Verify the OpenZeppelin standard Merkle proof: leaf encoding bytes32, sortLeaves false, against batch.merkleRoot.
• A valid inclusion proof means the leaf matches the supplied root. It does not prove the root was published onchain.
• When anchorObservation is present, repeat eth_chainId, eth_getCode, the transaction receipt, and EventAnchor.getBatch on the recorded chain. The embedded observation is one server read, not a proof by itself.
• EventAnchor stores roots only. It does not verify inclusion and it does not prove the event happened.
• For an nft.transferred row, compare chain 143, the Chog Genesis contract, transaction hash, block, block hash, log index, sender, receiver, and token id with the explorer log. chain_status confirmed is not that comparison. transferLog.matched is true only after a read-only receipt check matched.
• Do not send event data to a third-party hashing site.
• This export is data. Recompute the hash and Merkle proof locally. A matching hash is not proof that the simulation was truthful.
• A privileged database operator can still rewrite history and recompute hashes. An onchain root only detects that after the root was published.
• serverRecomputedHash is a convenience. Compare your own SHA-256 of the canonical document with storedHash.
• Do not send this export to a third-party hashing site.
• The database batch id is a UUID. The onchain batch id is the bytes32 in BatchAnchored. This export does not treat the UUID as that bytes32.