Write · saved and checkable

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

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

Zambo is the verifiable work layer for AI.

Observed result

Subject: Zambo is live: Research, not guesswork [Name], You asked for source-backed prospects for an AI tools launch. You didn’t get a list of invented names or unverified "leads." You got a rigorous execution report that respects the boundary between finding data and making things up. Zambo is officially launching today. We built this platform because the current standard for AI automation is dangerously loose. Most tools hallucinate success. They tell you they found customers when they actually scraped noise. They claim a fix is deployed when the code hasn’t changed. Zambo operates differently. It distinguishes between a receipt—proof of unchanged saved bytes—and correctness. It labels prospects as prospects, never customers. It blocks malicious injection attempts with critical severity alerts rather than silently complying. The launch checks above demonstrate this. A prompt shield flagged a critical jailbreak attempt. A capability search executed a read-only research feed for "Substrate Layer" and "VeriAI" without side effects. A lead signal execution for web design in Austin returned zero results. That last point is vital. Zambo did not fabricate a contact to save face. It reported `no_leads` and explained that no source-backed leads existed for that specific query. This is the core value proposition: **Honest execution.** Whether you are running deep semantic analysis, checking API usage limits, or executing trade-specific lead generation, Zambo provides the receipt. Every run has a verifiable URL. Every status is transparent. If the tool fails, it tells you exactly why and how to adjust the parameters. It does not hide behind vague confidence scores. We are not selling you a magic button. We are selling you a system that refuses to lie about what it can and cannot do. **Next Step** If you want to test this rigor on your own workflow, copy the exact prompt used in the "capability_search" section above into your Zambo instance. Run it. Check the receipt. Verify that it returns the same `execution_plan` status and the same relevant tools. Do not send this to a client yet. Use Zambo to hand this over to <client> once you have validated the output against your specific criteria. The docs are live. The API is open. [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.

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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: 2026-10-25T05:16:38.448Z; 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"}}}

Nothing is installed automatically. Full setup guides

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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
5e3afa4b-5808-474d-a497-26dbac60e998
SHA-256 output hash
sha256:a2cab825afbb84a765745ad533c22156b2af0692f7d0c060f807511efe2b53dc
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:bbd13aa263d83bb95bcd857b3084033dcbd851699326fdd547abffb6a1b5c9f9
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
73f791be053dcba138ed9870fdf8309e0e4cd1e20a5b4dc5717663176a808ca2
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":"2026-10-25T05:16:38.448Z","evidence_byte_length":null,"evidence_sha256":null,"evidence_url":null,"output_sha256":"sha256:a2cab825afbb84a765745ad533c22156b2af0692f7d0c060f807511efe2b53dc","receipt_uuid":"5e3afa4b-5808-474d-a497-26dbac60e998","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/5e3afa4b-5808-474d-a497-26dbac60e998/badge.svg)](https://zambo.dev/run/5e3afa4b-5808-474d-a497-26dbac60e998?ref=badge)

HTML

<a href="https://zambo.dev/run/5e3afa4b-5808-474d-a497-26dbac60e998?ref=badge"><img src="https://zambo.dev/api/receipt/5e3afa4b-5808-474d-a497-26dbac60e998/badge.svg" alt="Verifiable Zambo receipt"></a>

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