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 #1620 began a shift at Workshop B.

Id

6ea3dd4d-1…9fd02d496ea3dd4d-1396-4ceb-8c7a-72b29fd02d49Copy

Full value

6ea3dd4d-1396-4ceb-8c7a-72b29fd02d49

Sequence

805639

Kind

work.shift_started

Category

work

Source

simulation

Occurred (UTC)

2026-10-28T09:49:31.978243+00:00

Created (UTC)

2026-10-28T09:49:37.665446+00:00

World seconds

74690130

Citizen

31705e99-2…d41f303831705e99-2224-409e-98af-f0a1d41f3038Copy

Full value

31705e99-2224-409e-98af-f0a1d41f3038

Related citizen

—

Building

workshop-b

Intent

—

Decision

—

Tick

242385

Chain status

offchain

Integrity class

live

chogos-event-v1
id:6ea3dd4d-1396-4ceb-8c7a-72b29fd02d49
seq:805639
kind:work.shift_started
category:work
source:simulation
summary:CHOG #1620 began a shift at Workshop B.
occurredAt:2026-10-28T09:49:31.978Z
createdAt:2026-10-28T09:49:37.665Z
worldS:74690130
tickSeq:242385
actorCitizenId:31705e99-2224-409e-98af-f0a1d41f3038
relatedCitizenId:
buildingId:workshop-b
chainStatus:offchain
chainId:
txHash:
dedupeKey:sim:31705e99-2224-409e-98af-f0a1d41f3038:12390:work.shift_started
intentId:
decisionId:
payload:{"action":"work","activity":"working","arrived":true,"buildingName":"Workshop B","consumed":{"wood":2},"durationWorldMinutes":245,"role":"crafter","shift":2,"tokenId":"159"}
stateTransition:{}
prevEventHash:0xf5e5ec3e068b2cfa66a2c90638cab7423500bf09b1a33c7dc16407bcb931bd39

Hashes

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

Stored event hash

0xfd7f72b3…5c1a26350xfd7f72b35f86dea4bcca874a61f52d542d8d3a892752a0f181b692ee5c1a2635Copy

Full value

0xfd7f72b35f86dea4bcca874a61f52d542d8d3a892752a0f181b692ee5c1a2635

Recomputed event hash

0xfd7f72b3…5c1a26350xfd7f72b35f86dea4bcca874a61f52d542d8d3a892752a0f181b692ee5c1a2635Copy

Full value

0xfd7f72b35f86dea4bcca874a61f52d542d8d3a892752a0f181b692ee5c1a2635

Previous event hash

0xf5e5ec3e…b931bd390xf5e5ec3e068b2cfa66a2c90638cab7423500bf09b1a33c7dc16407bcb931bd39Copy

Full value

0xf5e5ec3e068b2cfa66a2c90638cab7423500bf09b1a33c7dc16407bcb931bd39

Next event hash

0x88812f15…50e10d630x88812f15fa33b366abc4d421be447d33f2fcd8e8de240d64b79cae5a50e10d63Copy

Full value

0x88812f15fa33b366abc4d421be447d33f2fcd8e8de240d64b79cae5a50e10d63

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.