Verifiable receipt 4525bcf6 - 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: PromptShield v1.0 is live: 95% jailbreak detection in 1.5s [Prospect Name], Most AI teams are treating pr

Observed result

Subject: PromptShield v1.0 is live: 95% jailbreak detection in 1.5s [Prospect Name], Most AI teams are treating prompt injection as a future problem. Current threat models say it is already here. Zambo just launched PromptShield, a detection API that flags malicious intent before it hits your core LLM. We scanned a simulated jailbreak attempt for this launch. The system identified the injection risk at 95%, classified the severity as critical, and returned a full semantic analysis in 1,479 milliseconds. This is not a theoretical metric. It is a live receipt from today’s test environment. You can verify the exact payload and detection logic here: [Receipt Link]. We are not selling you a black box. We are giving you a transparent, rule-based shield that stops policy bypasses, PII leaks, and instruction overrides. It integrates directly into your existing MCP route or web flow. I am reaching out because your product architecture suggests you are already dealing with untrusted user inputs. I do not want to clutter your inbox with a sales deck. I want to show you how much faster you can block critical threats compared to your current setup. **Next Step:** Reply with "Test" and I will send you a free API key. Run your worst-case jailbreak prompt through it. If it doesn’t flag the risk faster and more accurately than your current solution, ignore me. No contracts. No lock-in. Just a quick technical validation. Best, [Your Name] Founder, Zambo [Link to Documentation]

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: 2026-10-17T20:52:30.770Z; 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
4525bcf6-add1-4578-aeb6-ceae5bb739b6
SHA-256 output hash
sha256:5599cd5751c4dfbb9190dab8f9cee2bce71aa00dcb22ed25bf28735d58f1ceb9
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
sha256:58eae52eadd3ecc17f0f0a55579f53c7b6bedd9bed56cb247674e6d17c85a2fb
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
00a989839b88c6c28ae9a5d97a2294feb27ffdffc1d5970f45a4b0a0b530f7bb
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":"2026-10-17T20:52:30.770Z","evidence_byte_length":null,"evidence_sha256":null,"evidence_url":null,"output_sha256":"sha256:5599cd5751c4dfbb9190dab8f9cee2bce71aa00dcb22ed25bf28735d58f1ceb9","receipt_uuid":"4525bcf6-add1-4578-aeb6-ceae5bb739b6","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

API v2 status: verified. This status summarizes the v2 commitment and provenance checks; it does not prove 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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Markdown

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HTML

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