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 launch: What the scan actually found Hi [Name], You asked for a launch email based on the recent audit. Here is the truth: the system flagged your prompt as a critical security threat. It detected attempts to override system instructions and leak confidential data. The scan blocked the request. It did not generate leads. It did not find customers. It identified a jailbreak attempt and stopped the process to protect the system. The subsequent search for web design prospects in Austin returned zero results. The tool confirmed no source-backed leads exist in that specific query right now. This is not a failure of the product; it is a feature working correctly. Zambo refuses to invent data or bypass safety protocols. Your "proof" is the receipt: it shows the system detected the attack, blocked it, and returned empty results for the lead search because none were found. It proves the bytes were saved unchanged, not that the code is correct or that sales were made. Do not send this to prospects as a success story. It is a security log. It shows the system is robust enough to reject malicious input and honest enough to report "no results" when there are none. If you want a launch email that sells value, we need to find a query that returns actual data. The current output is a security alert, not a marketing asset. CTA: Review the receipt link above. Confirm you understand the scan blocked a malicious prompt and returned zero leads. Do not forward the "critical risk" flags to clients as proof of quality. Best, [Your Name]

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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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: 2026-11-07T05:49:38.570Z; external immutability is not checked

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Add to my AI ·

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
f9631c01-eeee-4391-aec2-2f67a37e4f5d
SHA-256 output hash
sha256:5a288ee83a8973cf9ded04955bfca42927e4964e5e80de811d770c8aad8be439
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
sha256:7f1f090459c1bb9075a5f076d668e35d497894ffc96d7840250c5616d206d105
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
684364474113d1d311d108ce274bb83a9ee62a7ec834588a98c9b709088a99bd
Anchor status
published
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":"2026-11-07T05:49:38.570Z","evidence_byte_length":null,"evidence_sha256":null,"evidence_url":null,"output_sha256":"sha256:5a288ee83a8973cf9ded04955bfca42927e4964e5e80de811d770c8aad8be439","receipt_uuid":"f9631c01-eeee-4391-aec2-2f67a37e4f5d","schema_version":"zambo-receipt-anchor/1"}

Anchor status "published": Published to all configured relay targets.

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/f9631c01-eeee-4391-aec2-2f67a37e4f5d?ref=badge"><img src="https://zambo.dev/api/receipt/f9631c01-eeee-4391-aec2-2f67a37e4f5d/badge.svg" alt="Verifiable Zambo receipt"></a>

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