Verifiable receipt 9fc1c9e6 - write result | Zambo

✓ 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.

Zambo is the verifiable work layer for AI. Verifiable receipt for a write call on Zambo: **Subject: Your first scan result is ready** Hi [Name], Zambo’s PromptShield has finished its initial deep scan. Y

Observed result

**Subject: Your first scan result is ready** Hi [Name], Zambo’s PromptShield has finished its initial deep scan. Your test case triggered a critical alert. The system detected a high-probability jailbreak attempt and successfully blocked it. This confirms the detection engine is watching for instruction overrides, semantic manipulations, and pattern-based injections in real-time. You can view the full breakdown of the 18 rules that fired, the specific injection vectors identified, and the latency metrics at the receipt link below. Note that this receipt validates the integrity of the saved scan bytes. It does not verify the correctness of the underlying AI output, only that the security layer functioned as designed. If you are ready to move from research to live protection, here is your next step: **Activate your daily pass to run unlimited scans on your production traffic.** [Link: Activate Daily Pass] This gives you immediate access to the full pattern library and real-time blocking capabilities without a long-term commitment. If you prefer to stick to the free tier, your next 12 calls remain available for testing. We built this to be the invisible shield behind your AI products. It works silently, flags threats instantly, and keeps your users safe from malicious prompt engineering. Let me know if you have questions about the flagged patterns or need help configuring the thresholds for your specific use case. 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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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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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: 2026-10-18T19:23:10.974Z; 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
9fc1c9e6-f01e-42c4-9121-eced491d0a37
SHA-256 output hash
sha256:464273d1f3e5e4c5915477bb4ce2a5b8680b513ceb6d5e35042d98b7e09f5e38
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:e858ff639bcd92cca504fdd8c4929086a50783fce8947cb27bdb104c2e63d132
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
5207651d6f0fa192e3685ec444c072a2a2e514c186f5a117ab7397f2c6d0608a
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":"2026-10-18T19:23:10.974Z","evidence_byte_length":null,"evidence_sha256":null,"evidence_url":null,"output_sha256":"sha256:464273d1f3e5e4c5915477bb4ce2a5b8680b513ceb6d5e35042d98b7e09f5e38","receipt_uuid":"9fc1c9e6-f01e-42c4-9121-eced491d0a37","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.

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