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 #1552 began a shift at Workshop A.

Id

3ceb0fea-2…82c810033ceb0fea-2dcf-415a-87c1-800b82c81003Copy

Full value

3ceb0fea-2dcf-415a-87c1-800b82c81003

Sequence

807753

Kind

work.shift_started

Category

work

Source

simulation

Occurred (UTC)

2026-10-28T11:20:50.978243+00:00

Created (UTC)

2026-10-28T11:20:54.151012+00:00

World seconds

75018870

Citizen

cc7ae7ad-c…4357ced7cc7ae7ad-c6f7-401e-a6e6-6de34357ced7Copy

Full value

cc7ae7ad-c6f7-401e-a6e6-6de34357ced7

Related citizen

—

Building

workshop-a

Intent

—

Decision

—

Tick

243458

Chain status

offchain

Integrity class

live

chogos-event-v1
id:3ceb0fea-2dcf-415a-87c1-800b82c81003
seq:807753
kind:work.shift_started
category:work
source:simulation
summary:CHOG #1552 began a shift at Workshop A.
occurredAt:2026-10-28T11:20:50.978Z
createdAt:2026-10-28T11:20:54.151Z
worldS:75018870
tickSeq:243458
actorCitizenId:cc7ae7ad-c6f7-401e-a6e6-6de34357ced7
relatedCitizenId:
buildingId:workshop-a
chainStatus:offchain
chainId:
txHash:
dedupeKey:sim:cc7ae7ad-c6f7-401e-a6e6-6de34357ced7:12728:work.shift_started
intentId:
decisionId:
payload:{"action":"work","activity":"working","arrived":true,"buildingName":"Workshop A","consumed":{"wood":2},"durationWorldMinutes":249,"role":"crafter","shift":1,"tokenId":"91"}
stateTransition:{}
prevEventHash:0xe018ad53edc9f04d1506153ef754cf5725f0a80b91960c38d8af029018553854

Hashes

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

Stored event hash

0x7dc6f92c…3f6a050a0x7dc6f92ca8ad71dee5922f25398d046a7fa784e7029db1de6a0b37863f6a050aCopy

Full value

0x7dc6f92ca8ad71dee5922f25398d046a7fa784e7029db1de6a0b37863f6a050a

Recomputed event hash

0x7dc6f92c…3f6a050a0x7dc6f92ca8ad71dee5922f25398d046a7fa784e7029db1de6a0b37863f6a050aCopy

Full value

0x7dc6f92ca8ad71dee5922f25398d046a7fa784e7029db1de6a0b37863f6a050a

Previous event hash

0xe018ad53…185538540xe018ad53edc9f04d1506153ef754cf5725f0a80b91960c38d8af029018553854Copy

Full value

0xe018ad53edc9f04d1506153ef754cf5725f0a80b91960c38d8af029018553854

Next event hash

0x6c522109…d8636ed90x6c522109bfbd230ec6f0d01693be4eebda3d7c9e0b9a067a01f01687d8636ed9Copy

Full value

0x6c522109bfbd230ec6f0d01693be4eebda3d7c9e0b9a067a01f01687d8636ed9

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.