Public work receipt · checkable record

Write · saved and checkable

✓ This result hasn’t changed since it was saved.

Sent by zambo-home-demo using Zambo

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

Zambo is the verifiable work layer for AI.

Observed result

Subject: Zambo is live: 60-second lead research, zero fluff Hi [Name], Zambo is officially live. We built it to solve one specific problem: finding qualified, source-backed prospects for local service businesses without the guesswork. Here is exactly what it does. You input a trade and a city. Within 60 seconds, Zambo returns five qualified leads with contact information. It supports 24 trades across any US city. There is no authentication required. You get three free searches per day per IP. We tested the system today. We ran a query for web designers in Austin, TX. The tool returned zero results for that specific combination at that moment. This is by design. Zambo does not invent contacts. It does not hallucinate data. If the source data isn’t there, the tool tells you so. A receipt proves the bytes saved; it does not prove the data is correct. That distinction matters. We prioritize accuracy over volume. We are not claiming to have customers yet. We are launching the tool. We are not sending outreach on your behalf. We are providing the research. You decide who to contact. The current status is "execution_plan." The tool is ready to run. The next step is yours. Try it now. Pick a trade. Pick a city. See what the data says. [Link to Zambo Dashboard] Best, [Your Name] [Your Title] Zambo

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.

Keep the work moving

This receipt records a completed tool call. When the free allowance is not enough, choose the access path that fits the job.

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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: 2026-11-07T08:49:37.586Z; external immutability is not checked

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Get receipts for your own AI work: add zambo.dev/mcp

One URL, no key. Copy the line for your AI and add it yourself in its settings.

  • 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
a72dd0ce-e51b-454e-8c76-9ac4f90bdd21
SHA-256 output hash
sha256:ccdd7a12e48a34729c96d9f81e969c3eb2a90bf172037eca0f155b51527ab622
Canonical bytes
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
Timestamp

Bound call context

Receipt schema
0.4
Tool name
write
Tool version
4.0.0
Permission scope
public
Caller type
session
Caller ID
sha256:aa59121b4cc0557b10987ad46736b1e77fef4f81dbc7b48cc102eaff73b46f65
Caller-reported label
zambo-home-demo (caller_reported, not authenticated team ownership)
Declared side effects
none
Side-effects schema
zambo-side-effects/1
Declaration hash
sha256:45aad38f3aa982b9aafe92ecb416ebe98791eddbaf8ab6df0bd08605b7c1bfee

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
empty
Evidence SHA-256
unavailable
Byte length
unavailable

Upstream provenance

This receipt is independently auditable against the named upstream source. This is not a mathematical correctness claim.

  • Source: · queried at: · raw response hash:

Neutral Nostr anchor

Event ID
1468f1ea57784c3d42d144308bb3068210cb80dce553eb484437cf386728ae4b
Anchor status
partial
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":"2026-11-07T08:49:37.586Z","evidence_byte_length":null,"evidence_sha256":null,"evidence_url":null,"output_sha256":"sha256:ccdd7a12e48a34729c96d9f81e969c3eb2a90bf172037eca0f155b51527ab622","receipt_uuid":"a72dd0ce-e51b-454e-8c76-9ac4f90bdd21","schema_version":"zambo-receipt-anchor/1"}

Anchor status "partial": Published to some configured relay targets; publication was not confirmed by every configured relay.

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.

Embed this receipt

Markdown

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HTML

<a href="https://zambo.dev/run/a72dd0ce-e51b-454e-8c76-9ac4f90bdd21?ref=badge"><img src="https://zambo.dev/api/receipt/a72dd0ce-e51b-454e-8c76-9ac4f90bdd21/badge.svg" alt="Verifiable Zambo receipt"></a>

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