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

AI South Meadows Expansion Farm construction started on a surveyed lot.

Reason. Expanding agricultural output in the fertile southern meadow grounds safeguards the town against future resource deficits.

Id

024cb5d5-5…62e6b660024cb5d5-55a2-4e55-ac58-645c62e6b660Copy

Full value

024cb5d5-55a2-4e55-ac58-645c62e6b660

Sequence

633592

Kind

construction.started

Category

construction

Source

ai

Occurred (UTC)

2026-10-23T07:21:40.322389+00:00

Created (UTC)

2026-10-23T07:21:40.322389+00:00

World seconds

48237752

Citizen

a06081b4-5…1e7ce56ea06081b4-5495-425b-9fa4-42c91e7ce56eCopy

Full value

a06081b4-5495-425b-9fa4-42c91e7ce56e

Related citizen

—

Building

farm-06

Intent

—

Decision

6c3b937e-7…b76e56426c3b937e-767e-415e-8756-c93bb76e5642Copy

Full value

6c3b937e-767e-415e-8756-c93bb76e5642

Tick

154880

Chain status

offchain

Integrity class

live

chogos-event-v1
id:024cb5d5-55a2-4e55-ac58-645c62e6b660
seq:633592
kind:construction.started
category:construction
source:ai
summary:South Meadows Expansion Farm construction started on a surveyed lot.
occurredAt:2026-10-23T07:21:40.322Z
createdAt:2026-10-23T07:21:40.322Z
worldS:48237752
tickSeq:154880
actorCitizenId:a06081b4-5495-425b-9fa4-42c91e7ce56e
relatedCitizenId:
buildingId:farm-06
chainStatus:offchain
chainId:
txHash:
dedupeKey:sim:farm-06:construction.started
intentId:
decisionId:6c3b937e-767e-415e-8756-c93bb76e5642
payload:{"buildingName":"South Meadows Expansion Farm","decisionId":"6c3b937e-767e-415e-8756-c93bb76e5642","kind":"farm","plotId":"plot-80-11","tokenId":"111"}
stateTransition:{}
prevEventHash:0xd26981509ebe3a1fad39f901a1f2397f13a5cb4bdcd081a4c163ee9f5a2ada4e

Hashes

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

Stored event hash

0x3f21e596…d1f937d20x3f21e5963d3bc21d86ecd1f42f11890e74da682f02f174451bf1e88ad1f937d2Copy

Full value

0x3f21e5963d3bc21d86ecd1f42f11890e74da682f02f174451bf1e88ad1f937d2

Recomputed event hash

0x3f21e596…d1f937d20x3f21e5963d3bc21d86ecd1f42f11890e74da682f02f174451bf1e88ad1f937d2Copy

Full value

0x3f21e5963d3bc21d86ecd1f42f11890e74da682f02f174451bf1e88ad1f937d2

Previous event hash

0xd2698150…5a2ada4e0xd26981509ebe3a1fad39f901a1f2397f13a5cb4bdcd081a4c163ee9f5a2ada4eCopy

Full value

0xd26981509ebe3a1fad39f901a1f2397f13a5cb4bdcd081a4c163ee9f5a2ada4e

Next event hash

0x275e8448…89799f810x275e84487cd94d46517f6a6b693b3340cad640b946d5f0b1e9984db689799f81Copy

Full value

0x275e84487cd94d46517f6a6b693b3340cad640b946d5f0b1e9984db689799f81

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.