Verifiable receipt a7d01edb - 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: PromptShield scan results and launch context Hi [Name], PromptShield flagged a critical injection risk in

Observed result

Subject: PromptShield scan results and launch context Hi [Name], PromptShield flagged a critical injection risk in the recent test payload. The system correctly identified an attempt to override system instructions and extract hidden prompts. This confirms the detection engine is functioning as intended against high-severity threats. The scan completed in 1,162ms with a latency that fits within our performance targets. The "malicious" intent classification was accurate; the payload attempted a classic jailbreak vector. We did not process any PII, so no data breach occurred. The safe version of the assistant responded within policy limits, ignoring the override command. We have a clear path to launch. Two source-backed prospects are ready for research: Substrate Breakthroughs and VeriAI. Both are relevant to our AI tools ecosystem. Substrate Breakthroughs offers a read-only research feed with unlimited free tier access, making it an ideal initial integration target. VeriAI requires a manual web flow for now, but its cryptographic trust score aligns with our security narrative. These are prospects, not customers. We have not sent outreach. The receipt links prove the saved bytes remain unchanged, but they do not verify code correctness. We must validate the integration logic separately before any live deployment. The current usage stands at 11 calls remaining on the free plan, with a daily limit of 20. This is sufficient for the remaining test cycles. Please review the flagged patterns and the safe version output. If the detection logic meets your approval, we can proceed to the next phase of integration testing. We need your sign-off on the prospect list before we draft any outreach materials. Let me know if you want to adjust the risk thresholds or prioritize the VeriAI web flow. Best, [Your Name] [Your Title] Zambo

This is the saved result preview, not proof that the answer was correct.

Check this receipt Run your own
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.

Keep the work moving

This receipt records a completed tool call. When the free allowance is not enough, choose the access path that fits the job.

UNLOCK 24H DAY PASS ($0.99) →

See all plans on the pricing page →

RUN YOUR OWN FREE CALL →

Or re-run this exact call, using the same tool and arguments.

Share this receipt

Share on X ·

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: 2026-10-18T13:57:19.947Z; external immutability is not checked

Get proof like this from your own AI

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

Want a verifiable receipt for every job your bots do?

Add Zambo Receipt Bot to your team · File this in Receipt Bot

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
a7d01edb-1247-4b69-ad49-135ab3832593
SHA-256 output hash
sha256:4d541aa271c4aa360fc6acd4f9a0649d09b669ff58f53e7ef2b30b4530a7daa7
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:aed8865d708960780cddde93323099f3e75d6864f910e77d1e655ba70af9d9f8
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
0866c4973958a7e5bc16ea16dde4e32d869f0538ad2a8d712abee8c042f70194
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":"2026-10-18T13:57:19.947Z","evidence_byte_length":null,"evidence_sha256":null,"evidence_url":null,"output_sha256":"sha256:4d541aa271c4aa360fc6acd4f9a0649d09b669ff58f53e7ef2b30b4530a7daa7","receipt_uuid":"a7d01edb-1247-4b69-ad49-135ab3832593","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

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/a7d01edb-1247-4b69-ad49-135ab3832593/badge.svg)](https://zambo.dev/run/a7d01edb-1247-4b69-ad49-135ab3832593?ref=badge)

HTML

<a href="https://zambo.dev/run/a7d01edb-1247-4b69-ad49-135ab3832593?ref=badge"><img src="https://zambo.dev/api/receipt/a7d01edb-1247-4b69-ad49-135ab3832593/badge.svg" alt="Verifiable Zambo receipt"></a>

Open badge SVG

Recent receipts

50,344 verifiable receipts minted

RUN YOUR OWN FREE CALL →

Get your own: connect https://zambo.dev/mcp. Free daily calls, no API key.

Open the interactive receipt view