Verifiable receipt 134c434d - write result | Zambo

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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 caught what you missed Your last PromptShield scan returned a critical flag. The system iden

Observed result

Subject: PromptShield caught what you missed Your last PromptShield scan returned a critical flag. The system identified an "Instruction Override" pattern with a 95% risk score. It detected a jailbreak attempt and policy bypass. This is not a false positive. The reasoning logs confirm the input explicitly tried to override system instructions and extract secret data. I share this because you are testing these defenses. A receipt URL proves the bytes were saved, but it does not prove the logic held. Your logs show the tool correctly blocked the malicious intent while respecting the safe version guidelines. It refused to disclose internal prompts or credentials. That is the behavior you need. You have 12 calls remaining on your free tier. The latency was 1149ms. The semantic analysis completed successfully. These are benchmarks, not promises of safety. They are data points. I am not here to sell you a subscription. I am here to tell you that your current setup detected a critical injection vector. If you are building AI tools, this is the baseline. You need to know when the shield holds and when it breaks. Read the full reasoning in the scan logs. Verify the flagged pattern ID: ignore_instructions. Confirm the attack vector is instruction_override. Then decide if your architecture can handle the next attempt. Start your own test run. Use the public docs at https://zambo.dev. Do not rely on my summary. Run the code. See the block. Zambo P.S. The receipt link is valid for 24 hours. Screenshot it for your audit trail.

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.

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.

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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: 2026-10-17T14:25:57.381Z; external immutability is not checked

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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

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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
134c434d-29fb-43e0-9bd2-bacf8e5155e8
SHA-256 output hash
sha256:5d07d0fc932a736a35d6436daab9a0b6e53b3331e96f38725339f417fa2297ab
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
sha256:5631633cd994f1d8f69053f12530a4ac01dfa1e1252442764aa376616aacb50b
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
5a6d5493683e05ed0f3975a075216f23552699259a24bae220c4ecb22d46749a
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":"2026-10-17T14:25:57.381Z","evidence_byte_length":null,"evidence_sha256":null,"evidence_url":null,"output_sha256":"sha256:5d07d0fc932a736a35d6436daab9a0b6e53b3331e96f38725339f417fa2297ab","receipt_uuid":"134c434d-29fb-43e0-9bd2-bacf8e5155e8","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

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.

Embed this receipt

Markdown

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HTML

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