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

System Town construction materials recovered. Wood 19, stone 400.

Id

09545f1b-6…9e5782c609545f1b-68ac-4a74-af3a-cdda9e5782c6Copy

Full value

09545f1b-68ac-4a74-af3a-cdda9e5782c6

Sequence

805654

Kind

town.need_resolved

Category

world

Source

system

Occurred (UTC)

2026-10-28T09:49:48.259231+00:00

Created (UTC)

2026-10-28T09:49:48.259231+00:00

World seconds

74691106

Citizen

—

Related citizen

—

Building

storehouse

Intent

—

Decision

—

Tick

242387

Chain status

offchain

Integrity class

live

chogos-event-v1
id:09545f1b-68ac-4a74-af3a-cdda9e5782c6
seq:805654
kind:town.need_resolved
category:world
source:system
summary:Town construction materials recovered. Wood 19, stone 400.
occurredAt:2026-10-28T09:49:48.259Z
createdAt:2026-10-28T09:49:48.259Z
worldS:74691106
tickSeq:242387
actorCitizenId:
relatedCitizenId:
buildingId:storehouse
chainStatus:offchain
chainId:
txHash:
dedupeKey:system:town.need_resolved:materials_shortage:242387
intentId:
decisionId:
payload:{"blocker":null,"buildingName":"Storehouse","evidence":{"farms":6,"food":400,"houses":18,"reservedLots":0,"stone":400,"tools":400,"underConstruction":[{"id":"farm-06","kind":"farm","progress":0},{"id":"house-18","kind":"house","progress":0},{"id":"workshop-06","kind":"workshop","progress":0}],"vacantServedLots":12,"wood":19,"workshops":6},"needType":"materials_shortage","previousStatus":"active","status":"resolved"}
stateTransition:{}
prevEventHash:0x3c7406927459094aff04e9d6abed308f4af3948a9bb3631d593f37962f041820

Hashes

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

Stored event hash

0x8fc25410…75da8edc0x8fc254104758ebb0846394aa27a988d2d40e881653ce19ff43d8bfc875da8edcCopy

Full value

0x8fc254104758ebb0846394aa27a988d2d40e881653ce19ff43d8bfc875da8edc

Recomputed event hash

0x8fc25410…75da8edc0x8fc254104758ebb0846394aa27a988d2d40e881653ce19ff43d8bfc875da8edcCopy

Full value

0x8fc254104758ebb0846394aa27a988d2d40e881653ce19ff43d8bfc875da8edc

Previous event hash

0x3c740692…2f0418200x3c7406927459094aff04e9d6abed308f4af3948a9bb3631d593f37962f041820Copy

Full value

0x3c7406927459094aff04e9d6abed308f4af3948a9bb3631d593f37962f041820

Next event hash

0xd77b5632…c0dbc9230xd77b5632b05d09d707089117b4bd37643e433b8b5440ff52d308971fc0dbc923Copy

Full value

0xd77b5632b05d09d707089117b4bd37643e433b8b5440ff52d308971fc0dbc923

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.