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 #1570 began a shift at Workshop 03.

Id

d7ac6fcc-6…cc5368ecd7ac6fcc-6902-47d9-a071-aab0cc5368ecCopy

Full value

d7ac6fcc-6902-47d9-a071-aab0cc5368ec

Sequence

805684

Kind

work.shift_started

Category

work

Source

simulation

Occurred (UTC)

2026-10-28T09:50:18.478243+00:00

Created (UTC)

2026-10-28T09:50:18.806256+00:00

World seconds

74692920

Citizen

b565b3ef-d…8482cfa3b565b3ef-d20b-41f8-ab4e-e20e8482cfa3Copy

Full value

b565b3ef-d20b-41f8-ab4e-e20e8482cfa3

Related citizen

—

Building

workshop-03

Intent

—

Decision

—

Tick

242393

Chain status

offchain

Integrity class

live

chogos-event-v1
id:d7ac6fcc-6902-47d9-a071-aab0cc5368ec
seq:805684
kind:work.shift_started
category:work
source:simulation
summary:CHOG #1570 began a shift at Workshop 03.
occurredAt:2026-10-28T09:50:18.478Z
createdAt:2026-10-28T09:50:18.806Z
worldS:74692920
tickSeq:242393
actorCitizenId:b565b3ef-d20b-41f8-ab4e-e20e8482cfa3
relatedCitizenId:
buildingId:workshop-03
chainStatus:offchain
chainId:
txHash:
dedupeKey:sim:b565b3ef-d20b-41f8-ab4e-e20e8482cfa3:13361:work.shift_started
intentId:
decisionId:
payload:{"action":"work","activity":"working","arrived":true,"buildingName":"Workshop 03","consumed":{"wood":2},"durationWorldMinutes":267,"role":"crafter","shift":2,"tokenId":"109"}
stateTransition:{}
prevEventHash:0xfdcb4fdd5a8cf89bec82444b049f68236ae7287e42bf81664c4d4f29fd9b0d9d

Hashes

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

Stored event hash

0x4c2fc8c2…c68aa73f0x4c2fc8c2f9ff8dd4ab5f665abb68837e0e1159fa42933cd62c919477c68aa73fCopy

Full value

0x4c2fc8c2f9ff8dd4ab5f665abb68837e0e1159fa42933cd62c919477c68aa73f

Recomputed event hash

0x4c2fc8c2…c68aa73f0x4c2fc8c2f9ff8dd4ab5f665abb68837e0e1159fa42933cd62c919477c68aa73fCopy

Full value

0x4c2fc8c2f9ff8dd4ab5f665abb68837e0e1159fa42933cd62c919477c68aa73f

Previous event hash

0xfdcb4fdd…fd9b0d9d0xfdcb4fdd5a8cf89bec82444b049f68236ae7287e42bf81664c4d4f29fd9b0d9dCopy

Full value

0xfdcb4fdd5a8cf89bec82444b049f68236ae7287e42bf81664c4d4f29fd9b0d9d

Next event hash

0x57e1ec83…7f4bb2490x57e1ec8319d49e54888d2eb2c5141ede17af210798ea57d17103c64c7f4bb249Copy

Full value

0x57e1ec8319d49e54888d2eb2c5141ede17af210798ea57d17103c64c7f4bb249

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.