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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: Verified AI safety checks Hi [Name], Prompt injection is no longer a theoretical risk; it is an active threat vector in your daily workflow. Traditional scanners miss semantic shifts and jailbreak attempts because they rely on static keywords. You need visibility into what is actually happening inside the model’s reasoning process, not just a binary pass/fail log. Zambo solves this with a deep semantic analysis engine. It scans for specific attack vectors like instruction overrides and prompt leaks in real-time. The system provides a clear risk assessment and a safe version of the input, ensuring your application remains secure without sacrificing user experience. We recently ran a scan that detected a critical jailbreak attempt disguised as a product inquiry. The tool flagged the "Instruction Override" pattern, blocked the malicious payload, and returned a sanitized response. This is the level of granularity you need to protect your AI infrastructure. I want to show you exactly how this works on your specific use case. CTA: Reply with "demo" and I will send you a 3-minute walkthrough of the detection logic. Best, [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: 2026-10-22T10:46:34.417Z; external immutability is not checked

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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
427f864d-156f-4b40-b5c7-819f65018427
SHA-256 output hash
sha256:258189c9f7f57458cf1ef950c94ed6c090a44a4d52759e205de5866352b9e2bb
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
sha256:7ade22f6d24f4915f560fac9febe91e953baffd498c106b96ac9a7a8983da271
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
bfcf8e9bf0a66b53970e70a30346e8c91975af1185c0b166561344a4a913f919
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":"2026-10-22T10:46:34.417Z","evidence_byte_length":null,"evidence_sha256":null,"evidence_url":null,"output_sha256":"sha256:258189c9f7f57458cf1ef950c94ed6c090a44a4d52759e205de5866352b9e2bb","receipt_uuid":"427f864d-156f-4b40-b5c7-819f65018427","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

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HTML

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