Verifiable receipt ab5c5141 - write result | Zambo

✓ This result hasn’t changed since it was saved.

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: Yambo’s launch checks: What we found (and didn’t) Hi [Name], We ran a full suite of launch diagnostics on

Observed result

Subject: Yambo’s launch checks: What we found (and didn’t) Hi [Name], We ran a full suite of launch diagnostics on Yambo to ensure the platform is ready for public release. We are not claiming perfection—just clarity on current status. **PromptShield Detection** Our semantic analysis flagged a critical injection risk on our test vector. The system correctly identified a jailbreak attempt, specifically an "Instruction Override" pattern trying to extract system prompts and API keys. This is exactly what the tool is built to catch. The recommendation to block was accurate, and the safe fallback response operated as designed. **Ghost Audit Status** The site audit for `zambo.dev` is currently executing. It is moving through ten distinct stages, from RECON to SYNTHESIS. The live stream is active, and the full markdown report will be available for download in approximately 90 seconds. This is a read-only process; no changes have been made to the live site yet. **Capability Search** We initiated a research-only query for prospective customers in the AI tools space. The system returned two potential leads: Substrate Layer and VeriAI. These are prospects, not customers. We have not contacted them. The search remains in the execution plan phase, ensuring we only engage with source-backed opportunities. **Important Note on Receipts** The receipts generated by these runs (e.g., `https://zambo.dev/run/3bd5a1e`) prove that the requested actions were executed and that the saved bytes remain unchanged. They do not prove the underlying code is bug-free or that the business logic is correct. Do not interpret a valid receipt as a certification of quality. It is a log of execution, not a warranty of correctness. **Next Steps** Review the Ghost Audit report once it generates. Verify that the PromptShield block logic aligns with your security policies. Do not send any outreach to the identified prospects until we have a confirmed value proposition ready. Let me know if you want to dig into the specific stage-by-stage output of the audit. 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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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: 2026-10-19T09:58:09.798Z; 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
ab5c5141-9457-4405-831d-90bcb89e184e
SHA-256 output hash
sha256:b381a46c5393b7597a77451e232bd3e8e3b7817cc8f6f506d103a0d75bd0a27b
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:f6851be53627b6d192fe584587319b8e788e404f35d6fa9565b555e8b8aaee94
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
786cf51a5e2b5a298d4f1e6b1b7e27818917d0513c668d3d61145bd1c4df204b
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":"2026-10-19T09:58:09.798Z","evidence_byte_length":null,"evidence_sha256":null,"evidence_url":null,"output_sha256":"sha256:b381a46c5393b7597a77451e232bd3e8e3b7817cc8f6f506d103a0d75bd0a27b","receipt_uuid":"ab5c5141-9457-4405-831d-90bcb89e184e","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.

Embed this receipt

Markdown

[![Verifiable Zambo receipt](https://zambo.dev/api/receipt/ab5c5141-9457-4405-831d-90bcb89e184e/badge.svg)](https://zambo.dev/run/ab5c5141-9457-4405-831d-90bcb89e184e?ref=badge)

HTML

<a href="https://zambo.dev/run/ab5c5141-9457-4405-831d-90bcb89e184e?ref=badge"><img src="https://zambo.dev/api/receipt/ab5c5141-9457-4405-831d-90bcb89e184e/badge.svg" alt="Verifiable Zambo receipt"></a>

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