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: Verifiable AI proofs, zero fluff Hi [Name], We are launching Zambo. We built it because AI outputs used to be a black box. You couldn’t prove what happened behind the hood. Zambo changes that. Our platform generates cryptographic trust scores for any AI-generated output. It is not a vague "confidence metric." It is a verifiable receipt. When a tool runs, Zambo captures the exact bytes and logic. A receipt proves the saved state remains unchanged. It does not claim the output is "correct" or "perfect." It proves the execution path is authentic and unaltered. We also integrated a deep semantic analysis engine. It scans for injection risks, prompt leaks, and jailbreak attempts in real time. If a query attempts to override system instructions or extract private data, Zambo flags it instantly. This gives you a hard security layer before data leaves your environment. Right now, Zambo is operational. We have validated the infrastructure with live runs. For example, our LeadSignal tool executed a search for web design prospects in Austin, TX. It returned zero leads because no source-backed data existed at that moment. We did not invent results. We reported the truth: no leads found. That integrity is the core of our product. We are not selling "AI magic." We are selling auditability. **Here is your next step:** Run a single test case through Zambo today. Take a standard AI prompt, push it through our semantic scanner, and inspect the generated receipt. See for yourself how we handle edge cases, risk flags, and data integrity. [Link: Start Free Audit] No sales calls. No onboarding decks. Just the tool, running live. Best, [Your Name] Zambo Team

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) →

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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: 2026-10-21T08:06:24.873Z; 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
885d3c59-3f15-453e-8e69-8e731a6bb644
SHA-256 output hash
sha256:81f136dcadf92e243aa8fa996550c3f85e3acc79f2004cb5cf72d40f9eaf5033
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
sha256:1e5035694a8f0a56ad140f9e04833f596313d174fd887ceecb898acaf4dd64a6
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
e134a1967cd68b4236996ddda46bd0c301cd459bfbe69658e86dd0b36c63c42f
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":"2026-10-21T08:06:24.873Z","evidence_byte_length":null,"evidence_sha256":null,"evidence_url":null,"output_sha256":"sha256:81f136dcadf92e243aa8fa996550c3f85e3acc79f2004cb5cf72d40f9eaf5033","receipt_uuid":"885d3c59-3f15-453e-8e69-8e731a6bb644","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/885d3c59-3f15-453e-8e69-8e731a6bb644/badge.svg)](https://zambo.dev/run/885d3c59-3f15-453e-8e69-8e731a6bb644?ref=badge)

HTML

<a href="https://zambo.dev/run/885d3c59-3f15-453e-8e69-8e731a6bb644?ref=badge"><img src="https://zambo.dev/api/receipt/885d3c59-3f15-453e-8e69-8e731a6bb644/badge.svg" alt="Verifiable Zambo receipt"></a>

Open badge SVG

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