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 #1121 began tending the fields at North Farm.

Id

4ab2071a-7…65947f444ab2071a-7cf6-4f03-9f6b-386765947f44Copy

Full value

4ab2071a-7cf6-4f03-9f6b-386765947f44

Sequence

807765

Kind

resource.farming_started

Category

resource

Source

simulation

Occurred (UTC)

2026-10-28T11:21:38.478243+00:00

Created (UTC)

2026-10-28T11:21:43.163442+00:00

World seconds

75021720

Citizen

8f6e7537-5…a823c5ea8f6e7537-50d1-42d1-a8a1-e58da823c5eaCopy

Full value

8f6e7537-50d1-42d1-a8a1-e58da823c5ea

Related citizen

—

Building

north-farm

Intent

—

Decision

—

Tick

243467

Chain status

offchain

Integrity class

live

chogos-event-v1
id:4ab2071a-7cf6-4f03-9f6b-386765947f44
seq:807765
kind:resource.farming_started
category:resource
source:simulation
summary:CHOG #1121 began tending the fields at North Farm.
occurredAt:2026-10-28T11:21:38.478Z
createdAt:2026-10-28T11:21:43.163Z
worldS:75021720
tickSeq:243467
actorCitizenId:8f6e7537-50d1-42d1-a8a1-e58da823c5ea
relatedCitizenId:
buildingId:north-farm
chainStatus:offchain
chainId:
txHash:
dedupeKey:sim:8f6e7537-50d1-42d1-a8a1-e58da823c5ea:11349:resource.farming_started
intentId:
decisionId:
payload:{"action":"work","activity":"gathering","arrived":true,"buildingName":"North Farm","durationWorldMinutes":253,"role":"farmer","shift":1,"tokenId":"1629"}
stateTransition:{}
prevEventHash:0x5faee8b8b92a2a10481ea97e133ce91064383a29ac62fd05a7fcbb8009828738

Hashes

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

Stored event hash

0x2df91a09…88cf6bc30x2df91a0919da67274f0e56b384fa9a899184ec6807507e8eabc3e6da88cf6bc3Copy

Full value

0x2df91a0919da67274f0e56b384fa9a899184ec6807507e8eabc3e6da88cf6bc3

Recomputed event hash

0x2df91a09…88cf6bc30x2df91a0919da67274f0e56b384fa9a899184ec6807507e8eabc3e6da88cf6bc3Copy

Full value

0x2df91a0919da67274f0e56b384fa9a899184ec6807507e8eabc3e6da88cf6bc3

Previous event hash

0x5faee8b8…098287380x5faee8b8b92a2a10481ea97e133ce91064383a29ac62fd05a7fcbb8009828738Copy

Full value

0x5faee8b8b92a2a10481ea97e133ce91064383a29ac62fd05a7fcbb8009828738

Next event hash

0xc16103be…4696e30f0xc16103be43fb9dfd23e4b01240d90d14cd7de20c5c3e41826700d98c4696e30fCopy

Full value

0xc16103be43fb9dfd23e4b01240d90d14cd7de20c5c3e41826700d98c4696e30f

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.