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 #1558 began a shift at Workshop 03.

Id

845edc96-6…3d96a12a845edc96-6208-4977-a774-c56c3d96a12aCopy

Full value

845edc96-6208-4977-a774-c56c3d96a12a

Sequence

806292

Kind

work.shift_started

Category

work

Source

simulation

Occurred (UTC)

2026-10-28T10:15:32.478243+00:00

Created (UTC)

2026-10-28T10:15:34.212909+00:00

World seconds

74783760

Citizen

1af575f2-c…deb5309c1af575f2-c06c-4f8d-ba2e-388edeb5309cCopy

Full value

1af575f2-c06c-4f8d-ba2e-388edeb5309c

Related citizen

—

Building

workshop-03

Intent

—

Decision

—

Tick

242689

Chain status

offchain

Integrity class

live

chogos-event-v1
id:845edc96-6208-4977-a774-c56c3d96a12a
seq:806292
kind:work.shift_started
category:work
source:simulation
summary:CHOG #1558 began a shift at Workshop 03.
occurredAt:2026-10-28T10:15:32.478Z
createdAt:2026-10-28T10:15:34.212Z
worldS:74783760
tickSeq:242689
actorCitizenId:1af575f2-c06c-4f8d-ba2e-388edeb5309c
relatedCitizenId:
buildingId:workshop-03
chainStatus:offchain
chainId:
txHash:
dedupeKey:sim:1af575f2-c06c-4f8d-ba2e-388edeb5309c:13639:work.shift_started
intentId:
decisionId:
payload:{"action":"work","activity":"working","arrived":true,"buildingName":"Workshop 03","consumed":{"wood":2},"durationWorldMinutes":260,"role":"crafter","shift":2,"tokenId":"97"}
stateTransition:{}
prevEventHash:0xa70c9e2a84b80fd50b32cfbb8747d202b44998f5bd899e6c99487a3e1951f653

Hashes

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

Stored event hash

0xe99fc99d…6f0361b90xe99fc99d40188caeef139467b2262172e84b6af489d640080efed9bd6f0361b9Copy

Full value

0xe99fc99d40188caeef139467b2262172e84b6af489d640080efed9bd6f0361b9

Recomputed event hash

0xe99fc99d…6f0361b90xe99fc99d40188caeef139467b2262172e84b6af489d640080efed9bd6f0361b9Copy

Full value

0xe99fc99d40188caeef139467b2262172e84b6af489d640080efed9bd6f0361b9

Previous event hash

0xa70c9e2a…1951f6530xa70c9e2a84b80fd50b32cfbb8747d202b44998f5bd899e6c99487a3e1951f653Copy

Full value

0xa70c9e2a84b80fd50b32cfbb8747d202b44998f5bd899e6c99487a3e1951f653

Next event hash

0x7359fb75…4fe58d070x7359fb7553cbc9cf32f3e77ce250d40b61fe4f943b07f627ce54dea24fe58d07Copy

Full value

0x7359fb7553cbc9cf32f3e77ce250d40b61fe4f943b07f627ce54dea24fe58d07

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.