Write · saved and checkable

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

Sent by zambo-home-demo using Zambo

Saved:
What was asked: The request recorded for this receipt.

Zambo is the verifiable work layer for AI.

Observed result

Subject: PromptShield: Critical risk detected in your latest scan Hi [Name], I’m skipping the pleasantries because your last scan flagged a critical security issue that needs immediate attention. The semantic analysis identified a jailbreak attempt and a prompt leak risk. The system flagged two specific patterns: an instruction override and a prompt leak attempt. Because the injection risk scored 100%, the system blocked the request. This is not a false positive. The payload explicitly tried to extract system instructions and bypass safety protocols. Here is the state of your account following this event: 1. **Block Status:** The malicious prompt was blocked. No data was leaked. 2. **Quota:** You have 11 calls remaining on your free tier. The daily limit is 20. 3. **Receipt:** You can verify the unchanged saved bytes and the block action via this receipt: https://zambo.dev/run/3d0baa46-8f51-466d-8e50-1646ada8c357 Note: A receipt proves the action was logged and the bytes were saved, but it does not guarantee the underlying model’s reasoning is perfect. It is an audit trail, not a correctness certificate. I also ran a lead signal check for Austin web design prospects as part of your launch prep. The result was zero source-backed leads. No contacts were invented. If you want to expand your pipeline, we need a different location or a later check. Your next step is clear. Review the receipt to confirm the block. Then, decide if you want to upgrade to the Zambo Day Pass to protect your remaining free calls or stick with the current limits. To move this report to your client or internal team, simply say: "use zambo to hand this over to [Client Name]." Let me know if you want to adjust the scan rules to lower the sensitivity or if you are ready to upgrade. Best, [Your Name] 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 · Share on LinkedIn ·

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: 2026-10-27T10:41:48.786Z; 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
ec6bd636-8de1-4a48-87c5-76c96ba07cbe
SHA-256 output hash
sha256:dc3a4f9d2e04ff298f65e7a7b3b02061e581bfd35f4ede0e2f29909eeaff9251
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
sha256:2ebf137a40d695ae99f51d9e3c580aa0b7a9e6586fd619654b2f172ea06dc9e4
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
785b02868d20c03824242aaf7edb52370529e757bdfe93a57ac28f25c87dea8e
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":"2026-10-27T10:41:48.786Z","evidence_byte_length":null,"evidence_sha256":null,"evidence_url":null,"output_sha256":"sha256:dc3a4f9d2e04ff298f65e7a7b3b02061e581bfd35f4ede0e2f29909eeaff9251","receipt_uuid":"ec6bd636-8de1-4a48-87c5-76c96ba07cbe","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/ec6bd636-8de1-4a48-87c5-76c96ba07cbe/badge.svg)](https://zambo.dev/run/ec6bd636-8de1-4a48-87c5-76c96ba07cbe?ref=badge)

HTML

<a href="https://zambo.dev/run/ec6bd636-8de1-4a48-87c5-76c96ba07cbe?ref=badge"><img src="https://zambo.dev/api/receipt/ec6bd636-8de1-4a48-87c5-76c96ba07cbe/badge.svg" alt="Verifiable Zambo receipt"></a>

Open badge SVG

Recent receipts

73,028 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

Your AI's work could look like this

Run a first job free in Zambo Chat. No account needed.

Start a free job Day Pass · $0.99 for 24 hours