Verifiable receipt 5fb489de - write result | Zambo

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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: PromptShield is live: Critical injection detection in 1.1s You probably know the risk profile of your cur

Observed result

Subject: PromptShield is live: Critical injection detection in 1.1s You probably know the risk profile of your current AI stack. One bad prompt can leak PII or bypass safety rails. Most teams only find out after the incident. PromptShield changes that dynamic. It is a dedicated API for real-time prompt injection and jailbreak detection. In our latest test, a deep scan identified a critical "Instruction Override" attack in 1,169 milliseconds. The system didn’t just flag the malicious intent; it parsed the semantic status, identified the specific attack vector, and provided a safe version of the query. It caught the jailbreak, the policy bypass, and the PII extraction attempt in a single pass. This isn’t just a filter. It’s a semantic analysis engine using an 18-rule pattern library. It distinguishes between a user asking a complex question and a user trying to break your system. We are launching with a free tier that includes unlimited calls for this core detection capability. You can integrate it directly into your LLM workflow to block malicious inputs before they reach your model. If you are currently handling user-generated prompts, you need this layer. [Button: Get API Key] Or check the docs here: https://zambo.dev/api/prompt-shield We keep it simple. You send the prompt. We send back the risk score and the verdict. Best, The Zambo Team

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: 2026-10-19T05:58:09.580Z; 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"}}}

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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
5fb489de-563c-41ca-a21c-427d488e272f
SHA-256 output hash
sha256:607dce2c57d90f78f1e40c295f33bb1b5798bdf1a00021589eb5dde936a0bc2d
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:b7dc64451083f25829706fbf808bdc85a7d3fe7ee93ed35d8fa6b9012a0d08ed
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
db3387557298f9416c7b99f308749fe7bc5db19f26c9e48775c5f3ea1a4e6d58
Anchor status
published
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":"2026-10-19T05:58:09.580Z","evidence_byte_length":null,"evidence_sha256":null,"evidence_url":null,"output_sha256":"sha256:607dce2c57d90f78f1e40c295f33bb1b5798bdf1a00021589eb5dde936a0bc2d","receipt_uuid":"5fb489de-563c-41ca-a21c-427d488e272f","schema_version":"zambo-receipt-anchor/1"}

Anchor status "published": Published to all configured relay targets.

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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