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 #1590 began a shift at Workshop B.

Id

4d85d1f6-d…fb14241c4d85d1f6-d2f8-4483-a256-76d8fb14241cCopy

Full value

4d85d1f6-d2f8-4483-a256-76d8fb14241c

Sequence

804975

Kind

work.shift_started

Category

work

Source

simulation

Occurred (UTC)

2026-10-28T09:20:27.478243+00:00

Created (UTC)

2026-10-28T09:20:28.953328+00:00

World seconds

74585460

Citizen

03c725f1-2…8e31397503c725f1-24b3-4fa1-b497-6cea8e313975Copy

Full value

03c725f1-24b3-4fa1-b497-6cea8e313975

Related citizen

—

Building

workshop-b

Intent

—

Decision

—

Tick

242041

Chain status

offchain

Integrity class

live

chogos-event-v1
id:4d85d1f6-d2f8-4483-a256-76d8fb14241c
seq:804975
kind:work.shift_started
category:work
source:simulation
summary:CHOG #1590 began a shift at Workshop B.
occurredAt:2026-10-28T09:20:27.478Z
createdAt:2026-10-28T09:20:28.953Z
worldS:74585460
tickSeq:242041
actorCitizenId:03c725f1-24b3-4fa1-b497-6cea8e313975
relatedCitizenId:
buildingId:workshop-b
chainStatus:offchain
chainId:
txHash:
dedupeKey:sim:03c725f1-24b3-4fa1-b497-6cea8e313975:12236:work.shift_started
intentId:
decisionId:
payload:{"action":"work","activity":"working","arrived":true,"buildingName":"Workshop B","consumed":{"wood":2},"durationWorldMinutes":260,"role":"crafter","shift":1,"tokenId":"129"}
stateTransition:{}
prevEventHash:0x258abe27ff5f6ebefa2b430c278e5e2ec26913ddad56e95d27103e9d7949e051

Hashes

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

Stored event hash

0x4011068c…374742410x4011068c846d97b3e090af8aac7904d7ef41792c0aabc5a7cc249efb37474241Copy

Full value

0x4011068c846d97b3e090af8aac7904d7ef41792c0aabc5a7cc249efb37474241

Recomputed event hash

0x4011068c…374742410x4011068c846d97b3e090af8aac7904d7ef41792c0aabc5a7cc249efb37474241Copy

Full value

0x4011068c846d97b3e090af8aac7904d7ef41792c0aabc5a7cc249efb37474241

Previous event hash

0x258abe27…7949e0510x258abe27ff5f6ebefa2b430c278e5e2ec26913ddad56e95d27103e9d7949e051Copy

Full value

0x258abe27ff5f6ebefa2b430c278e5e2ec26913ddad56e95d27103e9d7949e051

Next event hash

0x0cb32048…2c3324ba0x0cb32048b06643d7da3c5e81130661743de06f65947c7bed8c50b9cc2c3324baCopy

Full value

0x0cb32048b06643d7da3c5e81130661743de06f65947c7bed8c50b9cc2c3324ba

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.