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 #853 finished a shift at Riverside Farm.

Id

9fa5de91-2…dd5cbcd19fa5de91-2d58-472f-a765-3731dd5cbcd1Copy

Full value

9fa5de91-2d58-472f-a765-3731dd5cbcd1

Sequence

807480

Kind

work.shift_completed

Category

resource

Source

simulation

Occurred (UTC)

2026-10-28T11:06:34.978243+00:00

Created (UTC)

2026-10-28T11:06:37.020413+00:00

World seconds

74967510

Citizen

402830cc-d…bb3eb674402830cc-d9d0-4457-a0d3-b054bb3eb674Copy

Full value

402830cc-d9d0-4457-a0d3-b054bb3eb674

Related citizen

—

Building

riverside-farm

Intent

—

Decision

—

Tick

243289

Chain status

offchain

Integrity class

live

chogos-event-v1
id:9fa5de91-2d58-472f-a765-3731dd5cbcd1
seq:807480
kind:work.shift_completed
category:resource
source:simulation
summary:CHOG #853 finished a shift at Riverside Farm.
occurredAt:2026-10-28T11:06:34.978Z
createdAt:2026-10-28T11:06:37.020Z
worldS:74967510
tickSeq:243289
actorCitizenId:402830cc-d9d0-4457-a0d3-b054bb3eb674
relatedCitizenId:
buildingId:riverside-farm
chainStatus:offchain
chainId:
txHash:
dedupeKey:sim:402830cc-d9d0-4457-a0d3-b054bb3eb674:12466:work.shift_completed
intentId:
decisionId:
payload:{"activity":"gathering","buildingName":"Riverside Farm","role":"farmer","shift":2,"tokenId":"1361"}
stateTransition:{}
prevEventHash:0xa846dd18ddf74f5ba3cb84ad0f327ce140d35fa7183bdba41db5c166e4ac8c50

Hashes

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

Stored event hash

0xa53aed2b…f75e7ad50xa53aed2bbc04a1338a9fda5831e5d6383c07c3494e397ac147f2d375f75e7ad5Copy

Full value

0xa53aed2bbc04a1338a9fda5831e5d6383c07c3494e397ac147f2d375f75e7ad5

Recomputed event hash

0xa53aed2b…f75e7ad50xa53aed2bbc04a1338a9fda5831e5d6383c07c3494e397ac147f2d375f75e7ad5Copy

Full value

0xa53aed2bbc04a1338a9fda5831e5d6383c07c3494e397ac147f2d375f75e7ad5

Previous event hash

0xa846dd18…e4ac8c500xa846dd18ddf74f5ba3cb84ad0f327ce140d35fa7183bdba41db5c166e4ac8c50Copy

Full value

0xa846dd18ddf74f5ba3cb84ad0f327ce140d35fa7183bdba41db5c166e4ac8c50

Next event hash

0xfc28999e…7734895b0xfc28999eca1826c9201eba676ad5ff8aac55c4fd8dd32c528ef144577734895bCopy

Full value

0xfc28999eca1826c9201eba676ad5ff8aac55c4fd8dd32c528ef144577734895b

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.