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 #1550 began a shift at Workshop 03.

Id

7fd621c1-a…de03abbf7fd621c1-aa7c-4800-a24b-03f2de03abbfCopy

Full value

7fd621c1-aa7c-4800-a24b-03f2de03abbf

Sequence

805008

Kind

work.shift_started

Category

work

Source

simulation

Occurred (UTC)

2026-10-28T09:22:27.978243+00:00

Created (UTC)

2026-10-28T09:22:30.40607+00:00

World seconds

74592690

Citizen

44f021e0-7…733fc8df44f021e0-7238-403d-802e-a4bd733fc8dfCopy

Full value

44f021e0-7238-403d-802e-a4bd733fc8df

Related citizen

—

Building

workshop-03

Intent

—

Decision

—

Tick

242065

Chain status

offchain

Integrity class

live

chogos-event-v1
id:7fd621c1-aa7c-4800-a24b-03f2de03abbf
seq:805008
kind:work.shift_started
category:work
source:simulation
summary:CHOG #1550 began a shift at Workshop 03.
occurredAt:2026-10-28T09:22:27.978Z
createdAt:2026-10-28T09:22:30.406Z
worldS:74592690
tickSeq:242065
actorCitizenId:44f021e0-7238-403d-802e-a4bd733fc8df
relatedCitizenId:
buildingId:workshop-03
chainStatus:offchain
chainId:
txHash:
dedupeKey:sim:44f021e0-7238-403d-802e-a4bd733fc8df:14279:work.shift_started
intentId:
decisionId:
payload:{"action":"work","activity":"working","arrived":true,"buildingName":"Workshop 03","consumed":{"wood":2},"durationWorldMinutes":253,"role":"crafter","shift":1,"tokenId":"89"}
stateTransition:{}
prevEventHash:0xb48a198927bf7269bf17fd7c7e3cacfa3d7835c03f22a6920802e7536edbab28

Hashes

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

Stored event hash

0xbc5475f9…17c9ec870xbc5475f9d9001c8576bce5711e0605886d6e640220b6f3b22adc2d1217c9ec87Copy

Full value

0xbc5475f9d9001c8576bce5711e0605886d6e640220b6f3b22adc2d1217c9ec87

Recomputed event hash

0xbc5475f9…17c9ec870xbc5475f9d9001c8576bce5711e0605886d6e640220b6f3b22adc2d1217c9ec87Copy

Full value

0xbc5475f9d9001c8576bce5711e0605886d6e640220b6f3b22adc2d1217c9ec87

Previous event hash

0xb48a1989…6edbab280xb48a198927bf7269bf17fd7c7e3cacfa3d7835c03f22a6920802e7536edbab28Copy

Full value

0xb48a198927bf7269bf17fd7c7e3cacfa3d7835c03f22a6920802e7536edbab28

Next event hash

0x246f4186…cf906f310x246f4186a73b7950a8d33a43ea390939265fc5b337e255d862b6bbcccf906f31Copy

Full value

0x246f4186a73b7950a8d33a43ea390939265fc5b337e255d862b6bbcccf906f31

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.