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 #39 began tending the fields at North Farm.

Id

f4c1b2b6-8…754589c6f4c1b2b6-89db-4d1b-9557-abe4754589c6Copy

Full value

f4c1b2b6-89db-4d1b-9557-abe4754589c6

Sequence

806870

Kind

resource.farming_started

Category

resource

Source

simulation

Occurred (UTC)

2026-10-28T10:40:03.478243+00:00

Created (UTC)

2026-10-28T10:40:08.480016+00:00

World seconds

74872020

Citizen

fffa4992-8…0487ab91fffa4992-8f08-43c5-8fdb-d44b0487ab91Copy

Full value

fffa4992-8f08-43c5-8fdb-d44b0487ab91

Related citizen

—

Building

north-farm

Intent

—

Decision

—

Tick

242978

Chain status

offchain

Integrity class

live

chogos-event-v1
id:f4c1b2b6-89db-4d1b-9557-abe4754589c6
seq:806870
kind:resource.farming_started
category:resource
source:simulation
summary:CHOG #39 began tending the fields at North Farm.
occurredAt:2026-10-28T10:40:03.478Z
createdAt:2026-10-28T10:40:08.480Z
worldS:74872020
tickSeq:242978
actorCitizenId:fffa4992-8f08-43c5-8fdb-d44b0487ab91
relatedCitizenId:
buildingId:north-farm
chainStatus:offchain
chainId:
txHash:
dedupeKey:sim:fffa4992-8f08-43c5-8fdb-d44b0487ab91:11844:resource.farming_started
intentId:
decisionId:
payload:{"action":"work","activity":"gathering","arrived":true,"buildingName":"North Farm","durationWorldMinutes":264,"role":"farmer","shift":2,"tokenId":"547"}
stateTransition:{}
prevEventHash:0x60d400f609dfd0ed1e5dde135c1a5aaca04ea9d39071a807adb66918d67a2cf9

Hashes

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

Stored event hash

0x65bb8d71…e00121510x65bb8d71ff495f2efd0d963d38f88a0b11096040ca41e43d6cb0a836e0012151Copy

Full value

0x65bb8d71ff495f2efd0d963d38f88a0b11096040ca41e43d6cb0a836e0012151

Recomputed event hash

0x65bb8d71…e00121510x65bb8d71ff495f2efd0d963d38f88a0b11096040ca41e43d6cb0a836e0012151Copy

Full value

0x65bb8d71ff495f2efd0d963d38f88a0b11096040ca41e43d6cb0a836e0012151

Previous event hash

0x60d400f6…d67a2cf90x60d400f609dfd0ed1e5dde135c1a5aaca04ea9d39071a807adb66918d67a2cf9Copy

Full value

0x60d400f609dfd0ed1e5dde135c1a5aaca04ea9d39071a807adb66918d67a2cf9

Next event hash

0x0574890d…c034d3bf0x0574890d98205a1c005875ed9265cc104ee1febef0013253e9b387e9c034d3bfCopy

Full value

0x0574890d98205a1c005875ed9265cc104ee1febef0013253e9b387e9c034d3bf

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.