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 #1575 began a shift at Workshop 03.

Id

d7a492dc-2…e301a425d7a492dc-2f36-47cd-87ca-deffe301a425Copy

Full value

d7a492dc-2f36-47cd-87ca-deffe301a425

Sequence

804999

Kind

work.shift_started

Category

work

Source

simulation

Occurred (UTC)

2026-10-28T09:22:10.478243+00:00

Created (UTC)

2026-10-28T09:22:15.357904+00:00

World seconds

74591640

Citizen

6de4cd1c-5…30e10a006de4cd1c-5394-4f94-bdf3-a15930e10a00Copy

Full value

6de4cd1c-5394-4f94-bdf3-a15930e10a00

Related citizen

—

Building

workshop-03

Intent

—

Decision

—

Tick

242062

Chain status

offchain

Integrity class

live

chogos-event-v1
id:d7a492dc-2f36-47cd-87ca-deffe301a425
seq:804999
kind:work.shift_started
category:work
source:simulation
summary:CHOG #1575 began a shift at Workshop 03.
occurredAt:2026-10-28T09:22:10.478Z
createdAt:2026-10-28T09:22:15.357Z
worldS:74591640
tickSeq:242062
actorCitizenId:6de4cd1c-5394-4f94-bdf3-a15930e10a00
relatedCitizenId:
buildingId:workshop-03
chainStatus:offchain
chainId:
txHash:
dedupeKey:sim:6de4cd1c-5394-4f94-bdf3-a15930e10a00:13777:work.shift_started
intentId:
decisionId:
payload:{"action":"work","activity":"working","arrived":true,"buildingName":"Workshop 03","consumed":{"wood":2},"durationWorldMinutes":244,"role":"crafter","shift":1,"tokenId":"114"}
stateTransition:{}
prevEventHash:0x65f8a0b423df2ba7219a8d508db8606d4e1fe55b68e7743199dc29443f626e3b

Hashes

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

Stored event hash

0x3b0c18c7…9b7606c40x3b0c18c773f5139620cbc428700c523966bd88fad2107a2c039fbb329b7606c4Copy

Full value

0x3b0c18c773f5139620cbc428700c523966bd88fad2107a2c039fbb329b7606c4

Recomputed event hash

0x3b0c18c7…9b7606c40x3b0c18c773f5139620cbc428700c523966bd88fad2107a2c039fbb329b7606c4Copy

Full value

0x3b0c18c773f5139620cbc428700c523966bd88fad2107a2c039fbb329b7606c4

Previous event hash

0x65f8a0b4…3f626e3b0x65f8a0b423df2ba7219a8d508db8606d4e1fe55b68e7743199dc29443f626e3bCopy

Full value

0x65f8a0b423df2ba7219a8d508db8606d4e1fe55b68e7743199dc29443f626e3b

Next event hash

0x44754a8b…81649dc20x44754a8b122b937ba2e9418e9b512615d156449fc42c3bf2b5aa505081649dc2Copy

Full value

0x44754a8b122b937ba2e9418e9b512615d156449fc42c3bf2b5aa505081649dc2

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.