Verifiable receipt 0aa7f744 - write result | Zambo

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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: Zambo is live: Detecting injection attacks in real-time Hi [Name], Zambo is officially out of beta. We bu

Observed result

Subject: Zambo is live: Detecting injection attacks in real-time Hi [Name], Zambo is officially out of beta. We built it to solve one specific problem: AI systems are failing because they accept malicious inputs as legitimate instructions. Most teams treat prompt injection as a theoretical risk. Zambo treats it as a critical security breach. Our PromptShield API scans every interaction against an 18-rule pattern library. It identifies jailbreaks, instruction overrides, and data extraction attempts before your model processes them. It’s not a keyword filter; it’s a semantic analysis engine that understands intent. We just published our first live scan results. The system flagged a complex multi-vector attack with 95% injection risk and correctly identified the jailbreak attempt within milliseconds. We don’t claim this makes your AI unbreakable, but it gives you a verified, cryptographic trail of what was attempted and how the system responded. We are currently onboarding a small cohort of early access users. We are not selling seats yet. We are looking for teams who are already deploying AI agents and want to see exactly how these attacks look in the wild. If you have a use case where an AI agent interacts with untrusted input, I want to show you the live dashboard. No sales pitch. Just the data. Reply with "Yes" and I will send you a sandbox link with your own API key. Best, [Your Name] Founder, Zambo zambo.dev

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: 2026-10-20T02:26:40.443Z; 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
0aa7f744-c404-4c33-b115-fd8d20510f8e
SHA-256 output hash
sha256:4200288e00ef7e558df9e80390fed33099307ef22a936c8bee0f94fe9d84e322
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
sha256:0332e0d110bb75e0bd9a71b38ea58756cda5e0d95dd596a0a5301831261e7f4d
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
d8f9a3bb2f56107fb02ca20528abde81d9becd6ad96bc6e19501dfbd083b9dad
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":"2026-10-20T02:26:40.443Z","evidence_byte_length":null,"evidence_sha256":null,"evidence_url":null,"output_sha256":"sha256:4200288e00ef7e558df9e80390fed33099307ef22a936c8bee0f94fe9d84e322","receipt_uuid":"0aa7f744-c404-4c33-b115-fd8d20510f8e","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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