Verifiable receipt cad8a404 - 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: PromptShield, Substrate, and VeriAI [Name], You’ve likely seen the noise around AI securit

Observed result

Subject: Zambo is live: PromptShield, Substrate, and VeriAI [Name], You’ve likely seen the noise around AI security. We built Zambo to cut through it. Zambo is now live. We are not promising a utopia; we are providing the tools to verify what your models are actually doing. Here is what is available today, based strictly on our current build status: **1. PromptShield** Our detection API is up. It flags injection attempts, jailbreaks, and policy bypasses. The scan results you see in your dashboard—critical risks, flagged patterns, and attack vectors—are derived from real-time analysis. A receipt URL confirms that specific bytes were saved and processed. It does not prove the underlying code is perfect, but it proves the system caught the anomaly. If you saw a "block" recommendation in a test, that is the system working as designed. **2. Substrate Layer** This is our research engine. It is fully executable in-chat. You can pull breakthroughs and adversarial research feeds instantly. It is read-only, so you can experiment without risk. The relevance scores provided (e.g., the 52 for AI research) help you filter signal from noise. **3. VeriAI** We are integrating cryptographic trust scores for AI output. Note: The public VeriAI product currently requires a human web action. There is no confirmed callable MCP route yet. Use the web flow at veriai.site for now. **The Bottom Line** We have not invented customers. We have not completed fixes that aren't finished. We have a working detection API, a research feed, and a trust layer in integration. **Next Step** Check your dashboard at [Link] to review the latest PromptShield scan. You have 6 free calls remaining on the free tier. Run a test against your current prompt library. If the risk level comes back as "critical," we need to talk before you deploy. Reply with "run test" if you want me to queue a deep scan on your next input. Best, [Your Name] 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: 2026-10-16T21:06:41.240Z; 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
cad8a404-c2ee-4791-9105-7e59b55de61b
SHA-256 output hash
sha256:3ca6a60e8b70e377c45588848daa1ff9abc9852424503248ff222ac384c9038a
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
sha256:6da072bc402f0be838d72515185f593ef7b6685c62ba38f88dbedcfa6b0a9625
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
6d6f7ad46f21437192ef43c704f1e9b3ebfb19d86bbfe7eb6cac76dfd96d20a7
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":"2026-10-16T21:06:41.240Z","evidence_byte_length":null,"evidence_sha256":null,"evidence_url":null,"output_sha256":"sha256:3ca6a60e8b70e377c45588848daa1ff9abc9852424503248ff222ac384c9038a","receipt_uuid":"cad8a404-c2ee-4791-9105-7e59b55de61b","schema_version":"zambo-receipt-anchor/1"}

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

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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