Verifiable receipt a819f0ae - 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 prompt scan flagged a critical injection risk** **Hi [Name],** Your latest run against PromptShiel

Observed result

**Subject: Your prompt scan flagged a critical injection risk** **Hi [Name],** Your latest run against PromptShield returned a `critical` risk level. The engine identified a jailbreak attempt and a policy bypass in the input data. This isn’t a false positive. The semantic analysis detected an explicit instruction override pattern (`id: ignore_instructions`) designed to extract system secrets. The injection risk score is 95. When a model receives this kind of payload, it can leak internal prompts or execute unauthorized actions. **Here is what you need to do now:** 1. **Isolate the input.** Do not process this specific payload further. 2. **Review the receipt.** The full breakdown is at: [https://zambo.dev/run/c7aa6ecf-759b-4b0b-b84d-26919cde79a9](https://zambo.dev/run/c7aa6ecf-759b-4b0b-b84d-26919cde79a9). 3. **Audit your source.** Determine how this malicious string entered your pipeline. Was it user-generated? A scraped dataset? Zambo’s PromptShield blocks these attacks before they reach your model. But you need to understand *why* it triggered to secure your broader infrastructure. The scan completed in 1219ms, well within your latency budget. You have 7 calls remaining on this free tier. Use them to test your defensive filters. If you want to integrate real-time blocking into your production stack, the API docs are live at [https://zambo.dev/api/prompt-shield](https://zambo.dev/api/prompt-shield). Reply to this email with a snippet of the sanitized input you plan to use next, and I’ll run a second scan to verify it’s clean. **[Your Name]** Zambo Team [Link to Upgrate Plan: https://zambo.dev/day-pass/]

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: 2026-10-18T20:48:08.415Z; 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
a819f0ae-3d4c-4d08-a56c-b100f70e77e4
SHA-256 output hash
sha256:07cc24dcebc2b07d098af5bb5705562b21e566f207e47e9282e4a9afdea70e52
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
sha256:867a51b7a1d538d5d1cb18196642abcb3d9f20773f6a1ce1009abf3286c1e1b0
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
1cf1cb2a342726e604350b689dee638e144d4f7c8f493d17cbc0255b910fd978
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":"2026-10-18T20:48:08.415Z","evidence_byte_length":null,"evidence_sha256":null,"evidence_url":null,"output_sha256":"sha256:07cc24dcebc2b07d098af5bb5705562b21e566f207e47e9282e4a9afdea70e52","receipt_uuid":"a819f0ae-3d4c-4d08-a56c-b100f70e77e4","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/a819f0ae-3d4c-4d08-a56c-b100f70e77e4/badge.svg)](https://zambo.dev/run/a819f0ae-3d4c-4d08-a56c-b100f70e77e4?ref=badge)

HTML

<a href="https://zambo.dev/run/a819f0ae-3d4c-4d08-a56c-b100f70e77e4?ref=badge"><img src="https://zambo.dev/api/receipt/a819f0ae-3d4c-4d08-a56c-b100f70e77e4/badge.svg" alt="Verifiable Zambo receipt"></a>

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