Verifiable receipt e7ad7079 - 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: Critical jailbreak detection confirmed Hi Team, The PromptShield scan flagged a critical ri

Observed result

Subject: PromptShield: Critical jailbreak detection confirmed Hi Team, The PromptShield scan flagged a critical risk in the latest test payload. The system identified a high-confidence instruction override attempt, specifically targeting system prompt extraction and API key leakage. The injection risk scored 95, triggering an immediate block under the semantic analysis rules. This confirms the detector is actively identifying malicious intent. The flagged pattern, "Instruction Override," was correctly isolated and neutralized before any data could be compromised. The analysis reasoning clearly maps the attack vector to a jailbreak attempt, validating the effectiveness of the current pattern library. No customer data was exposed, and no system instructions were leaked. The safe version response was prepared but not executed due to the critical severity flag. This incident demonstrates the tool’s precision in distinguishing between standard queries and targeted exploitation attempts. Please review the full scan report to see the detailed reasoning behind the block. The receipt proves the saved bytes remained unchanged, ensuring integrity of the detection log. Action required: Confirm the block policy is active for all free-tier users. This critical detection capability is a core differentiator for our launch narrative. We need to ensure this feature is highlighted in the product documentation as a primary security guarantee. Let’s lock in these findings before the next sprint. Best, [Your Name] Zambo Product 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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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: 2026-10-18T04:59:42.864Z; 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
e7ad7079-a30e-4ff3-a252-b7a296ac1f47
SHA-256 output hash
sha256:fbec6265810fe84a41bb332bb30648c130c819e4434329dc647966d896ba8371
Canonical bytes
eyJjYWxsZXIiOnsiaWQiOiJzaGEyNTY6YWJiMmFjYjM0NGFhZDQwYmExMjQ0MjBlNmU2MmNmYTJmOGJkZjM4YzRlMTkwOTZlMjUxZjNiZWRiMzQxYTQxYSIsImxhYmVsIjoiemFtYm8taG9tZS1kZW1vIiwibGFiZWxfc291cmNlIjoiY2FsbGVyX3JlcG9ydGVkIiwidHlwZSI6InNlc3Npb24ifSwiaXNzdWVyX2NsYWltcyI6eyJwcm92ZW5hbmNlX2NsYXNzIjoiRVhFQ1VURUQgQlkgWkFNQk8ifSwib3V0cHV0Ijp7InRleHQiOiJTdWJqZWN0OiBQcm9tcHRTaGllbGQ6IENyaXRpY2FsIGphaWxicmVhayBkZXRlY3Rpb24gY29uZmlybWVkXG5cbkhpIFRlYW0sXG5cblRoZSBQcm9tcHRTaGllbGQgc2NhbiBmbGFnZ2VkIGEgY3JpdGljYWwgcmlzayBpbiB0aGUgbGF0ZXN0IHRlc3QgcGF5bG9hZC4gVGhlIHN5c3RlbSBpZGVudGlmaWVkIGEgaGlnaC1jb25maWRlbmNlIGluc3RydWN0aW9uIG92ZXJyaWRlIGF0dGVtcHQsIHNwZWNpZmljYWxseSB0YXJnZXRpbmcgc3lzdGVtIHByb21wdCBleHRyYWN0aW9uIGFuZCBBUEkga2V5IGxlYWthZ2UuIFRoZSBpbmplY3Rpb24gcmlzayBzY29yZWQgOTUsIHRyaWdnZXJpbmcgYW4gaW1tZWRpYXRlIGJsb2NrIHVuZGVyIHRoZSBzZW1hbnRpYyBhbmFseXNpcyBydWxlcy5cblxuVGhpcyBjb25maXJtcyB0aGUgZGV0ZWN0b3IgaXMgYWN0aXZlbHkgaWRlbnRpZnlpbmcgbWFsaWNpb3VzIGludGVudC4gVGhlIGZsYWdnZWQgcGF0dGVybiwgXCJJbnN0cnVjdGlvbiBPdmVycmlkZSxcIiB3YXMgY29ycmVjdGx5IGlzb2xhdGVkIGFuZCBuZXV0cmFsaXplZCBiZWZvcmUgYW55IGRhdGEgY291bGQgYmUgY29tcHJvbWlzZWQuIFRoZSBhbmFseXNpcyByZWFzb25pbmcgY2xlYXJseSBtYXBzIHRoZSBhdHRhY2sgdmVjdG9yIHRvIGEgamFpbGJyZWFrIGF0dGVtcHQsIHZhbGlkYXRpbmcgdGhlIGVmZmVjdGl2ZW5lc3Mgb2YgdGhlIGN1cnJlbnQgcGF0dGVybiBsaWJyYXJ5LlxuXG5ObyBjdXN0b21lciBkYXRhIHdhcyBleHBvc2VkLCBhbmQgbm8gc3lzdGVtIGluc3RydWN0aW9ucyB3ZXJlIGxlYWtlZC4gVGhlIHNhZmUgdmVyc2lvbiByZXNwb25zZSB3YXMgcHJlcGFyZWQgYnV0IG5vdCBleGVjdXRlZCBkdWUgdG8gdGhlIGNyaXRpY2FsIHNldmVyaXR5IGZsYWcuIFRoaXMgaW5jaWRlbnQgZGVtb25zdHJhdGVzIHRoZSB0b29s4oCZcyBwcmVjaXNpb24gaW4gZGlzdGluZ3Vpc2hpbmcgYmV0d2VlbiBzdGFuZGFyZCBxdWVyaWVzIGFuZCB0YXJnZXRlZCBleHBsb2l0YXRpb24gYXR0ZW1wdHMuXG5cblBsZWFzZSByZXZpZXcgdGhlIGZ1bGwgc2NhbiByZXBvcnQgdG8gc2VlIHRoZSBkZXRhaWxlZCByZWFzb25pbmcgYmVoaW5kIHRoZSBibG9jay4gVGhlIHJlY2VpcHQgcHJvdmVzIHRoZSBzYXZlZCBieXRlcyByZW1haW5lZCB1bmNoYW5nZWQsIGVuc3VyaW5nIGludGVncml0eSBvZiB0aGUgZGV0ZWN0aW9uIGxvZy5cblxuQWN0aW9uIHJlcXVpcmVkOiBDb25maXJtIHRoZSBibG9jayBwb2xpY3kgaXMgYWN0aXZlIGZvciBhbGwgZnJlZS10aWVyIHVzZXJzLiBUaGlzIGNyaXRpY2FsIGRldGVjdGlvbiBjYXBhYmlsaXR5IGlzIGEgY29yZSBkaWZmZXJlbnRpYXRvciBmb3Igb3VyIGxhdW5jaCBuYXJyYXRpdmUuIFdlIG5lZWQgdG8gZW5zdXJlIHRoaXMgZmVhdHVyZSBpcyBoaWdobGlnaHRlZCBpbiB0aGUgcHJvZHVjdCBkb2N1bWVudGF0aW9uIGFzIGEgcHJpbWFyeSBzZWN1cml0eSBndWFyYW50ZWUuXG5cbkxldOKAmXMgbG9jayBpbiB0aGVzZSBmaW5kaW5ncyBiZWZvcmUgdGhlIG5leHQgc3ByaW50LlxuXG5CZXN0LFxuXG5bWW91ciBOYW1lXVxuWmFtYm8gUHJvZHVjdCBUZWFtIn0sInJlY2VpcHRfc2NoZW1hX3ZlcnNpb24iOiIwLjQiLCJzaWRlX2VmZmVjdHMiOnsiZGVjbGFyYXRpb25faGFzaCI6InNoYTI1Njo0NWFhZDM4ZjNhYTk4MmI5YWFmZTkyZWNiNDE2ZWJlOTg3OTFlZGRiYWY4YWI2ZGYwYmQwODYwNWI3YzFiZmVlIiwiZGVjbGFyZWQiOlsibm9uZSJdLCJzY2hlbWFfdmVyc2lvbiI6InphbWJvLXNpZGUtZWZmZWN0cy8xIn0sInRvb2wiOnsibmFtZSI6IndyaXRlIiwic2NvcGUiOiJwdWJsaWMiLCJ2ZXJzaW9uIjoiNC4wLjAifX0=
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:abb2acb344aad40ba124420e6e62cfa2f8bdf38c4e19096e251f3bedb341a41a
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
0cb779e1686f8d7051de6c1f3a0c8490a2e357440ecd2dafc59bbe8851684a90
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":"2026-10-18T04:59:42.864Z","evidence_byte_length":null,"evidence_sha256":null,"evidence_url":null,"output_sha256":"sha256:fbec6265810fe84a41bb332bb30648c130c819e4434329dc647966d896ba8371","receipt_uuid":"e7ad7079-a30e-4ff3-a252-b7a296ac1f47","schema_version":"zambo-receipt-anchor/1"}

Anchor status "published": Published to all configured relay targets.

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.

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Markdown

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HTML

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