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 #290 began tending the fields at Meadow Farm.

Id

a4471aea-c…0606a755a4471aea-cb1d-4e31-b148-c05a0606a755Copy

Full value

a4471aea-cb1d-4e31-b148-c05a0606a755

Sequence

805680

Kind

resource.farming_started

Category

resource

Source

simulation

Occurred (UTC)

2026-10-28T09:50:15.478243+00:00

Created (UTC)

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

World seconds

74692740

Citizen

8a84bcb6-8…67ab9cbd8a84bcb6-8c14-4524-8807-bd1867ab9cbdCopy

Full value

8a84bcb6-8c14-4524-8807-bd1867ab9cbd

Related citizen

—

Building

farm-04

Intent

—

Decision

—

Tick

242393

Chain status

offchain

Integrity class

live

chogos-event-v1
id:a4471aea-cb1d-4e31-b148-c05a0606a755
seq:805680
kind:resource.farming_started
category:resource
source:simulation
summary:CHOG #290 began tending the fields at Meadow Farm.
occurredAt:2026-10-28T09:50:15.478Z
createdAt:2026-10-28T09:50:18.806Z
worldS:74692740
tickSeq:242393
actorCitizenId:8a84bcb6-8c14-4524-8807-bd1867ab9cbd
relatedCitizenId:
buildingId:farm-04
chainStatus:offchain
chainId:
txHash:
dedupeKey:sim:8a84bcb6-8c14-4524-8807-bd1867ab9cbd:13352:resource.farming_started
intentId:
decisionId:
payload:{"action":"work","activity":"gathering","arrived":true,"buildingName":"Meadow Farm","durationWorldMinutes":265,"role":"farmer","shift":2,"tokenId":"798"}
stateTransition:{}
prevEventHash:0xc425b9e504d27731a0444a4d935ac42223e4be2aa92e17b02cc37ef72b4a239a

Hashes

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

Stored event hash

0x51c84016…81fd50bd0x51c84016c48aa0c2ba7cb2f1302cb21cfd0509cab552c33dceefb70481fd50bdCopy

Full value

0x51c84016c48aa0c2ba7cb2f1302cb21cfd0509cab552c33dceefb70481fd50bd

Recomputed event hash

0x51c84016…81fd50bd0x51c84016c48aa0c2ba7cb2f1302cb21cfd0509cab552c33dceefb70481fd50bdCopy

Full value

0x51c84016c48aa0c2ba7cb2f1302cb21cfd0509cab552c33dceefb70481fd50bd

Previous event hash

0xc425b9e5…2b4a239a0xc425b9e504d27731a0444a4d935ac42223e4be2aa92e17b02cc37ef72b4a239aCopy

Full value

0xc425b9e504d27731a0444a4d935ac42223e4be2aa92e17b02cc37ef72b4a239a

Next event hash

0x003486a5…cc4e64710x003486a54be711411c606b0f737218a67280fe88f56fb7707892372fcc4e6471Copy

Full value

0x003486a54be711411c606b0f737218a67280fe88f56fb7707892372fcc4e6471

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.