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 #1403 began a shift at Workshop B.

Id

015913d7-b…8068caae015913d7-b706-49cd-ac65-00078068caaeCopy

Full value

015913d7-b706-49cd-ac65-00078068caae

Sequence

805753

Kind

work.shift_started

Category

work

Source

simulation

Occurred (UTC)

2026-10-28T09:51:36.478243+00:00

Created (UTC)

2026-10-28T09:51:40.812895+00:00

World seconds

74697600

Citizen

72dc95ab-f…75a10cb972dc95ab-f2ce-4503-aaf4-6fe875a10cb9Copy

Full value

72dc95ab-f2ce-4503-aaf4-6fe875a10cb9

Related citizen

—

Building

workshop-b

Intent

—

Decision

—

Tick

242408

Chain status

offchain

Integrity class

live

chogos-event-v1
id:015913d7-b706-49cd-ac65-00078068caae
seq:805753
kind:work.shift_started
category:work
source:simulation
summary:CHOG #1403 began a shift at Workshop B.
occurredAt:2026-10-28T09:51:36.478Z
createdAt:2026-10-28T09:51:40.812Z
worldS:74697600
tickSeq:242408
actorCitizenId:72dc95ab-f2ce-4503-aaf4-6fe875a10cb9
relatedCitizenId:
buildingId:workshop-b
chainStatus:offchain
chainId:
txHash:
dedupeKey:sim:72dc95ab-f2ce-4503-aaf4-6fe875a10cb9:12540:work.shift_started
intentId:
decisionId:
payload:{"action":"work","activity":"working","arrived":true,"buildingName":"Workshop B","consumed":{"wood":2},"durationWorldMinutes":246,"role":"crafter","shift":2,"tokenId":"1911"}
stateTransition:{}
prevEventHash:0xab85550d82b73a56c45aea3c7a6e91f7652891e2182e3604f1fe30b40a9689b9

Hashes

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

Stored event hash

0xfee60298…b6a23e1c0xfee602985c1e9d6279a95081f9a1c08ea9816a5cdc5e443d52b7f029b6a23e1cCopy

Full value

0xfee602985c1e9d6279a95081f9a1c08ea9816a5cdc5e443d52b7f029b6a23e1c

Recomputed event hash

0xfee60298…b6a23e1c0xfee602985c1e9d6279a95081f9a1c08ea9816a5cdc5e443d52b7f029b6a23e1cCopy

Full value

0xfee602985c1e9d6279a95081f9a1c08ea9816a5cdc5e443d52b7f029b6a23e1c

Previous event hash

0xab85550d…0a9689b90xab85550d82b73a56c45aea3c7a6e91f7652891e2182e3604f1fe30b40a9689b9Copy

Full value

0xab85550d82b73a56c45aea3c7a6e91f7652891e2182e3604f1fe30b40a9689b9

Next event hash

0x90ddbc9e…3b00da360x90ddbc9eed601a993335ccacb430baf3a211dbaeecab2de5a4ab4bc13b00da36Copy

Full value

0x90ddbc9eed601a993335ccacb430baf3a211dbaeecab2de5a4ab4bc13b00da36

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.