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 is live Hi [Name], You are seeing this because Zambo has launched. We built it to handle the heavy lifting of AI research and verification so you can focus on strategy. We do not promise magic. We provide proof. Our core capability, Substrate, is a living AI research machine that runs adversarial checks across 51 different lifeforms. It is not a chatbot; it is a research engine. Every output comes with a receipt—a cryptographic audit trail that proves exactly what was executed and what was returned. This is not marketing fluff. It is verifiable data. We also integrate with VeriAI, which assigns a cryptographic trust score to any AI-generated output. If you work with AI, you know the biggest risk is hallucination. We eliminate that ambiguity by making every result auditable. Right now, the system is running on a free tier with unlimited calls for core research tasks. You can test it immediately without entering a credit card. We are not looking for testimonials today. We are looking for your scrutiny. Run a query that matters to you. Check the receipt. Verify the bytes. If the output matches the receipt, we have solved a real problem for you. If it does not, tell us why. We are building in the open, and we want your feedback to shape the next iteration. I have attached a sample receipt from a recent run so you can see the level of detail we provide. Do you have ten minutes this week to test a specific workflow? Best, [Your Name] [Your Title] Zambo [Link to Zambo Dashboard]

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: 2026-10-24T11:57:03.937Z; 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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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
badb737b-41d4-4b5d-82ec-4bfddb6d7b01
SHA-256 output hash
sha256:839802c8f82d66357b00bbb9a9f2918c0db08498d5f4dc2510d95c28c4e92e9f
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
sha256:86a64cf762067d8332ad79a57bd52b3ae7ab02dc66e7e2734142c6cd99abf50e
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
a6b00ad8f3cbea0588e6fca97aa2fab421a39c482aae9e5a58a678b4b34e4149
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":"2026-10-24T11:57:03.937Z","evidence_byte_length":null,"evidence_sha256":null,"evidence_url":null,"output_sha256":"sha256:839802c8f82d66357b00bbb9a9f2918c0db08498d5f4dc2510d95c28c4e92e9f","receipt_uuid":"badb737b-41d4-4b5d-82ec-4bfddb6d7b01","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/badb737b-41d4-4b5d-82ec-4bfddb6d7b01/badge.svg)](https://zambo.dev/run/badb737b-41d4-4b5d-82ec-4bfddb6d7b01?ref=badge)

HTML

<a href="https://zambo.dev/run/badb737b-41d4-4b5d-82ec-4bfddb6d7b01?ref=badge"><img src="https://zambo.dev/api/receipt/badb737b-41d4-4b5d-82ec-4bfddb6d7b01/badge.svg" alt="Verifiable Zambo receipt"></a>

Open badge SVG

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