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 #1030 began a shift at Workshop D.

Id

a76f464d-1…8d40d6aea76f464d-16fd-445e-81ab-17718d40d6aeCopy

Full value

a76f464d-16fd-445e-81ab-17718d40d6ae

Sequence

804983

Kind

work.shift_started

Category

work

Source

simulation

Occurred (UTC)

2026-10-28T09:21:01.978243+00:00

Created (UTC)

2026-10-28T09:21:04.06043+00:00

World seconds

74587530

Citizen

2b3e4427-b…98f520e52b3e4427-b9f1-4d20-8a38-50cb98f520e5Copy

Full value

2b3e4427-b9f1-4d20-8a38-50cb98f520e5

Related citizen

—

Building

workshop-05

Intent

—

Decision

—

Tick

242048

Chain status

offchain

Integrity class

live

chogos-event-v1
id:a76f464d-16fd-445e-81ab-17718d40d6ae
seq:804983
kind:work.shift_started
category:work
source:simulation
summary:CHOG #1030 began a shift at Workshop D.
occurredAt:2026-10-28T09:21:01.978Z
createdAt:2026-10-28T09:21:04.060Z
worldS:74587530
tickSeq:242048
actorCitizenId:2b3e4427-b9f1-4d20-8a38-50cb98f520e5
relatedCitizenId:
buildingId:workshop-05
chainStatus:offchain
chainId:
txHash:
dedupeKey:sim:2b3e4427-b9f1-4d20-8a38-50cb98f520e5:14069:work.shift_started
intentId:
decisionId:
payload:{"action":"work","activity":"working","arrived":true,"buildingName":"Workshop D","consumed":{"wood":2},"durationWorldMinutes":247,"role":"crafter","shift":1,"tokenId":"1538"}
stateTransition:{}
prevEventHash:0x1407276613d3c6323476185dc7e3ff97de7d6d6ad02a1fd95fc3214e890a6e9e

Hashes

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

Stored event hash

0xd33d703d…9c3e9e310xd33d703d2a72746f0225aa8ca26e3d144ef6347c87da18076048c6809c3e9e31Copy

Full value

0xd33d703d2a72746f0225aa8ca26e3d144ef6347c87da18076048c6809c3e9e31

Recomputed event hash

0xd33d703d…9c3e9e310xd33d703d2a72746f0225aa8ca26e3d144ef6347c87da18076048c6809c3e9e31Copy

Full value

0xd33d703d2a72746f0225aa8ca26e3d144ef6347c87da18076048c6809c3e9e31

Previous event hash

0x14072766…890a6e9e0x1407276613d3c6323476185dc7e3ff97de7d6d6ad02a1fd95fc3214e890a6e9eCopy

Full value

0x1407276613d3c6323476185dc7e3ff97de7d6d6ad02a1fd95fc3214e890a6e9e

Next event hash

0x63495b7b…3d50f76f0x63495b7b35ed27ce78f07c759db7acfb071444a96221426f9596f5713d50f76fCopy

Full value

0x63495b7b35ed27ce78f07c759db7acfb071444a96221426f9596f5713d50f76f

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.