Verifiable receipt 0f35bd41 - 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: Zambo PromptShield is live Hi [Name], Skip the pleasantries. Your team is likely testing AI interactions

Observed result

Subject: Zambo PromptShield is live Hi [Name], Skip the pleasantries. Your team is likely testing AI interactions for safety, and you’ve probably encountered a gap between detection and action—knowing *that* an attack happened, but not *how* to stop it or what to do next. Zambo PromptShield is now available. It doesn’t just flag malicious inputs like jailbreaks or instruction overrides; it returns a structured, machine-readable verdict with specific risk levels, identified attack vectors, and recommended safe responses. You get a clear picture of the threat in milliseconds, allowing your engineering team to integrate defensive logic directly into their pipelines. We’re not claiming it’s a silver bullet. We know security is a continuous process. But we offer a precise, API-first tool that turns raw prompt data into actionable intelligence. If you’re currently managing prompt injection risks manually or with basic regex filters, this gives you a measurable upgrade in clarity and speed. **Next Step:** I’d like to offer you a free, deep-scan test on one of your recent production logs. We’ll run it through the shield and send you the full technical report, including the risk assessment and the specific patterns matched. No commitment, no sales call, just the data. If that sounds useful, reply with “Test” and a secure link to a sample log (or a sanitized snippet). I’ll run it within 24 hours. 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: 2026-10-17T07:58:23.412Z; 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
0f35bd41-0e41-4774-9033-10bc5de2fce4
SHA-256 output hash
sha256:7ba352147f4c8cc0cf4a83ea898ed18e92203a48ec21d92b3e363649d0ef12f1
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
sha256:8a2be281d3137c534bcdc6675b0ee73aff27bd7dcac196e48698cfcb81cf2816
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
6c078d4dbc06ae2aed8c2f4da1ade982b47a96b07cd388c91ecd7e6514af64e7
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":"2026-10-17T07:58:23.412Z","evidence_byte_length":null,"evidence_sha256":null,"evidence_url":null,"output_sha256":"sha256:7ba352147f4c8cc0cf4a83ea898ed18e92203a48ec21d92b3e363649d0ef12f1","receipt_uuid":"0f35bd41-0e41-4774-9033-10bc5de2fce4","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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HTML

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