Write · saved and checkable

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

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

Zambo is the verifiable work layer for AI.

Observed result

**Subject: Zambo is live. Here’s what it proved.** You don’t need another AI wrapper. You need verification. Zambo just launched. We didn’t build a black box. We built a transparent research engine that separates signal from noise. In our first live test, we ran a deep semantic analysis on a malicious prompt injection attempt. The system flagged the jailbreak, identified the instruction override, and blocked the credential extraction instantly. It returned a clear "safe version" response without leaking system internals. That’s not just detection. It’s structural integrity. We also tested our lead generation capabilities. We searched for web design prospects in Austin, TX. The tool executed the search, respected the free tier limits, and returned a definitive result: no source-backed leads currently exist in that specific niche. Why does that matter? Because Zambo doesn’t hallucinate opportunities. It doesn’t invent customers to look good. If the data isn’t there, it tells you the data isn’t there. A receipt proves the bytes were saved. It does not prove the lead is real. Only source-backed evidence does. This is the core of the launch. We are shipping a tool that respects truth. It runs deep scans, checks 21 semantic rules, and provides receipts for every action. Whether you are auditing AI outputs for cryptographic trust or hunting for qualified prospects, the output is binary: verified or rejected. No fluff. No fake metrics. Just executable logic with a paper trail. **Next Step:** Copy and paste this exact phrase into your Zambo interface to hand over this launch summary to your client: "use zambo to hand this over to [Client Name]" The system will process the request and provide the final receipt. Zambo Team *Zambo.dev*

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.

UNLOCK 24H DAY PASS ($0.99) →

See all plans on the pricing page →

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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: 2026-10-21T03:20:57.395Z; 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

Want a verifiable receipt for every job your bots do?

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
cabbaadd-0d1b-486e-8a36-24cb8ec57f5e
SHA-256 output hash
sha256:09201358c5d6526f65e383f5072b292872374395551b3951354c9ae94c9abbf1
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
sha256:8d9819cf962902ac200ff14e2c7aa15f20d2d33156653109132462d563b8ad8f
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
4cf239527f67642ce08cbbbebc998c12ccf54fca7945e277c2024ecddfefcfc7
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":"2026-10-21T03:20:57.395Z","evidence_byte_length":null,"evidence_sha256":null,"evidence_url":null,"output_sha256":"sha256:09201358c5d6526f65e383f5072b292872374395551b3951354c9ae94c9abbf1","receipt_uuid":"cabbaadd-0d1b-486e-8a36-24cb8ec57f5e","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

[![Verifiable Zambo receipt](https://zambo.dev/api/receipt/cabbaadd-0d1b-486e-8a36-24cb8ec57f5e/badge.svg)](https://zambo.dev/run/cabbaadd-0d1b-486e-8a36-24cb8ec57f5e?ref=badge)

HTML

<a href="https://zambo.dev/run/cabbaadd-0d1b-486e-8a36-24cb8ec57f5e?ref=badge"><img src="https://zambo.dev/api/receipt/cabbaadd-0d1b-486e-8a36-24cb8ec57f5e/badge.svg" alt="Verifiable Zambo receipt"></a>

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Get your own: connect https://zambo.dev/mcp. Free daily calls, no API key.

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