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Saved:
What was asked: The request recorded for this receipt.

Zambo is the verifiable work layer for AI.

Observed result

primary job: capability_search executed: true result / query: [private] result / status: execution_plan result / tools 1 / rank: 1 result / tools 1 / name: zambo_score result / tools 1 / product: Zambo Score result / tools 1 / description: Score any startup, idea, or repo 0–100 — grade + bottleneck + fas[private] win result / tools 1 / classification: fully_executable_in_chat result / tools 1 / tool: zambo_score result / tools 1 / callable: zambo_score({input: "<idea, startup, or repo>"}) result / tools 1 / required arguments 1: input result / tools 1 / side effects: Read-only score and bottleneck. result / tools 1 / access / free tier: unlimited result / tools 1 / access / paid: included in Zambo Pass result / tools 1 / access / per call: free result / tools 1 / approval required: false result / tools 1 / retry safe: true result / tools 1 / expected output / score: number result / tools 1 / expected output / breakdown: object result / tools 1 / expected output / label: string result / tools 1 / expected output / recommendations: string[] result / tools 1 / relevance score: 15 result / tools 1 / why relevant: [private] result / tools 2 / rank: 2 result / tools 2 / product: Nad.City result / tools 2 / description: 3D blockchain explorer for Monad — every contract is a building result / tools 2 / classification: requires_human_web_action result / tools 2 / relevance score: 10 result / tools 2 / why relevant: [private] result / execution plan 1 / step: 1 result / execution plan 1 / rank: 1 result / execution plan 1 / name: zambo_score result / execution plan 1 / product: Zambo Score result / execution plan 1 / description: Score any startup, idea, or repo 0–100 — grade + bottleneck + fas[private] win result / execution plan 1 / classification: fully_executable_in_chat result / execution plan 1 / tool: zambo_score result / execution plan 1 / callable: zambo_score({input: "<idea, startup, or repo>"}) result / execution plan 1 / required arguments 1: input result / execution plan 1 / side effects: Read-only score and bottleneck.

This is the saved result preview, not proof that the answer was correct.

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Show technical provenance details

Provenance for every timeline entry

  • EXECUTED BY ZAMBOZambo ran the tool call itself.
  • OBSERVED VIA GATEWAYA Zambo gateway observed request and response bytes from the named external executor. Zambo did not run that external action.
  • LOGGED BY AGENTAn agent or local hook reported the action. Zambo attests that the record is unchanged since logging, not that the action happened as described.

Private agent reasoning, built-in client actions, and direct calls to unrelated MCP servers are not included unless an agent or gateway reports them.

What is an execution receipt?

An execution receipt is a public record of a reported AI agent tool call. Its byte commitment and provenance claim can be checked independently; neither alone authenticates the issuer. Read the canonical definition of an AI agent execution receipt.

What the receipt can and cannot prove

What is this?

Zambo's receipt store reports a tool call and records its result. The SHA-256 commitment covers the exact canonical bytes. The provenance label is bound to v0.4 receipt bytes when that check passes, but no pinned signature or trusted issuer key is checked. An anchor can timestamp a fingerprint; it does not authenticate the issuer.

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Show technical verification checks

Verification checks

  • SHA-256 commitment: Checked independently against the exact decoded bytes
  • Provenance binding: PASS; The metadata claim is consistent with the verified receipt bytes; issuer is not authenticated.
  • Metadata binding: PASS; metadata_hash matches the canonical metadata block.
  • Issuer authentication: NOT CHECKED; no pinned signing key or trusted issuer was supplied
  • Signature: NOT CHECKED; no Ed25519 signature or pinned key is supplied
  • Chain: NOT CHECKED; no append-only chain proof is validated
  • Stored timestamp: 2026-10-23T02:43:41.139Z; external immutability is not checked

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  • ClaudeSettings, Connectors, Add custom connector, paste the URL.
    https://zambo.dev/mcp
  • ChatGPTSettings, Apps and Connectors, developer mode, create a connector with this URL.
    https://zambo.dev/mcp
  • GrokAdd a remote MCP server in your Grok client and paste the URL.
    https://zambo.dev/mcp
  • CursorPaste into ~/.cursor/mcp.json.
    {"mcpServers":{"zambo":{"url":"https://zambo.dev/mcp"}}}

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Show receipt data and verification evidence

Committed provenance claim

EXECUTED BY ZAMBO

The metadata claim is consistent with the verified receipt bytes; issuer is not authenticated.

Receipt ID
b2395f78-75d7-4c6f-aeb6-a67bb7099710
SHA-256 output hash
sha256:16347f078fab904618b24f3ee63d85c4015595fe786f58d650e10d8dbdac532c
Canonical bytes
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
Timestamp

Bound call context

Receipt schema
0.4
Tool name
zambo_universal
Tool version
4.0.0
Permission scope
public
Caller type
session
Caller ID
sha256:50a52f226e89de5baf5da267fc19162a35a578b75be1b9f4731167af4554bc2e
Declared side effects
state_write
Side-effects schema
zambo-side-effects/1
Declaration hash
sha256:dfb4412aa429d3ac637a05668c435bcc90a251363fcdd49f7b85ae4ab55b5bc9

This records what the server-side tool contract declared at call time. It does not independently verify that a downstream side effect happened.

Bound upstream evidence

Status
captured
Evidence SHA-256
sha256:1e78f628e4d592c27b6cbea406efe2509c943b8a6e5bcc890efa1239bca726c1
Byte length
1079

Fetch exact evidence bytes

Neutral Nostr anchor

Event ID
71a681b05f03390bd927e139a226656ad8f37bd3868322a1b4647a3a005d6879
Anchor status
failed
Public key
e13475107d30c918ec664adf2ab1141024a22fb35190f82c9e933704fa49af41

Relay hints: wss://relay.damus.io · wss://nos.lol · wss://relay.primal.net

Schema: zambo-receipt-anchor/1

Anchor envelope bytes:

{"anchored_at":"2026-10-23T02:43:41.139Z","evidence_byte_length":1079,"evidence_sha256":"sha256:1e78f628e4d592c27b6cbea406efe2509c943b8a6e5bcc890efa1239bca726c1","evidence_url":"https://zambo.dev/api/evidence/1e78f628e4d592c27b6cbea406efe2509c943b8a6e5bcc890efa1239bca726c1","output_sha256":"sha256:16347f078fab904618b24f3ee63d85c4015595fe786f58d650e10d8dbdac532c","receipt_uuid":"b2395f78-75d7-4c6f-aeb6-a67bb7099710","schema_version":"zambo-receipt-anchor/1"}

Anchor status "failed": Publication was not confirmed by any configured relay target.

Check this hash yourself

Receipt commitment: commitment matched; issuer, signature and chain not checked. This checks the saved bytes, not whether the answer was correct. Recompute the SHA-256 commitment in your browser. Open the API v2 JSON response to inspect the machine-readable checks. See the Nostr anchor event on a public viewer. The fingerprint is timestamped outside Zambo too.

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Markdown

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HTML

<a href="https://zambo.dev/run/b2395f78-75d7-4c6f-aeb6-a67bb7099710?ref=badge"><img src="https://zambo.dev/api/receipt/b2395f78-75d7-4c6f-aeb6-a67bb7099710/badge.svg" alt="Verifiable Zambo receipt"></a>

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