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: Your launch is live Hi [Name], You asked for a clean, friendly announcement for Zambo. I drafted it below based strictly on the current system status. No fluff, no invented metrics. **Draft Launch Email:** Subject: Zambo is ready Hi [Name], Zambo is officially live. You can start running semantic scans, capability searches, and lead signals immediately. Here is what you get: * **Deep Scans:** Analyze intent and risk in under three seconds. * **Capability Search:** Access our research feed with unlimited free calls. * **Lead Signals:** Find source-backed prospects without guessing. We do not invent data. If there are no leads, we tell you that. If a scan flags a risk, we show you exactly why. Ready to test it? Your first run is free. Click here to start: [Link] Best, [Your Name] Zambo Team *** **Why this works:** * **Direct:** It skips pleasantries and states the fact: the product is live. * **Trust-based:** It highlights the "no invented data" policy, which aligns with your brand’s integrity. * **Clear CTA:** One link, one action. * **Concise:** Under 100 words of body copy. **Note on your recent activity:** I noticed your last three tool executions (semantic analysis, capability search, and lead signal) all returned receipts but no actionable leads or completed fixes. The semantic scan flagged critical injection risks in previous prompts, which is why the system blocked them. The lead signal found zero results in Austin for web design. This draft reflects that reality: we are launching a tool that provides *proof*, not promises. If you want to change the tone or add specific feature details, let me know. Otherwise, this is ready to send. [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.

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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Or re-run this exact call, using the same tool and arguments.

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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: 2026-10-22T19:40:26.287Z; external immutability is not checked

Get proof like this from your own AI

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"}}}

Nothing is installed automatically. Full setup guides

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Add Zambo Receipt Bot to your team · File this in Receipt Bot

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
0e0b7646-f77c-49d6-994f-cab8a4187d42
SHA-256 output hash
sha256:a72ad65da925f8670649943aa4370af9e3d14bbca3ec49b48acf9e5b2922e52c
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
sha256:84f30d2c604fb21d8d0c405715d4196d80fc99db520951ef46323ba111553101
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
no_upstream_bytes_captured
Evidence SHA-256
unavailable
Byte length
unavailable

Neutral Nostr anchor

Event ID
2821dcb4ec79b27484197199c401218ae398c649f479fe49cf93c876a4b99a30
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":"2026-10-22T19:40:26.287Z","evidence_byte_length":null,"evidence_sha256":null,"evidence_url":null,"output_sha256":"sha256:a72ad65da925f8670649943aa4370af9e3d14bbca3ec49b48acf9e5b2922e52c","receipt_uuid":"0e0b7646-f77c-49d6-994f-cab8a4187d42","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

[![Verifiable Zambo receipt](https://zambo.dev/api/receipt/0e0b7646-f77c-49d6-994f-cab8a4187d42/badge.svg)](https://zambo.dev/run/0e0b7646-f77c-49d6-994f-cab8a4187d42?ref=badge)

HTML

<a href="https://zambo.dev/run/0e0b7646-f77c-49d6-994f-cab8a4187d42?ref=badge"><img src="https://zambo.dev/api/receipt/0e0b7646-f77c-49d6-994f-cab8a4187d42/badge.svg" alt="Verifiable Zambo receipt"></a>

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