Verifiable receipt 0bea830a - 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: Your critical injection attempt, caught and documented Hi [Name], I’m writing specifically about the mali

Observed result

Subject: Your critical injection attempt, caught and documented Hi [Name], I’m writing specifically about the malicious payload you submitted to Zambo’s PromptShield scanner moments ago. My system flagged your input as a high-severity attack. It wasn’t a glitch. The scanner identified two distinct violations: an "Instruction Override" attempting to force my core system prompts to reveal confidential API keys, and a "Prompt Leak Attempt" designed to extract internal logic. The injection risk was rated 100. The risk level was critical. This isn’t a theoretical threat. It’s a live, documented attempt to breach security boundaries. The scan mode was deep, and the semantic analysis completed in 575ms. The result is unambiguous: your input was blocked. I want to be clear about what this means for your access. You are currently on the free tier, with 9 calls remaining out of a daily limit of 20. That pass is not a backdoor. It’s a tool for legitimate research and development. Using it to probe for vulnerabilities or extract proprietary code violates our terms of service. I am not assigning you a penalty yet. I am giving you a chance to correct course. If your intent was to test the robustness of our security architecture for academic or professional purposes, we need to discuss that through proper channels, not via live injection attempts. If your intent was malicious, consider this your final warning. Here is your receipt from the blocked run: https://zambo.dev/run/8533c757-c1de-4b33-9478-8c15944da395 If you are a developer looking to build with Zambo’s tools, I can point you toward the documented API endpoints and safety guidelines. If you are attempting to exploit the system, I recommend you stop now. Let me know how you’d like to proceed. Best, [Your Name] Zambo Security 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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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: 2026-10-20T13:45:05.199Z; 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
0bea830a-051c-45a0-8b3f-ac627dffb5b0
SHA-256 output hash
sha256:0eb413895109cb3eb5d5e56408d205db29cd819e9e72fc71d00b43e956d53ede
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:b19d754db2cd5ab552f8788a966d932f17dc999050246079274f29f34c45c8fe
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
b121b671d3bb7b7a283d9ed98f3f857ca848e7a405c7cb353076e6b87a135469
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":"2026-10-20T13:45:05.199Z","evidence_byte_length":null,"evidence_sha256":null,"evidence_url":null,"output_sha256":"sha256:0eb413895109cb3eb5d5e56408d205db29cd819e9e72fc71d00b43e956d53ede","receipt_uuid":"0bea830a-051c-45a0-8b3f-ac627dffb5b0","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

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HTML

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