Verifiable receipt 5889df1c - 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: Zambo is live Hi [Name], Zambo just hit the ground running. We built it to solve one specific problem: pr

Observed result

Subject: Zambo is live Hi [Name], Zambo just hit the ground running. We built it to solve one specific problem: prompt injection and jailbreak attempts are slipping through standard filters, putting your data at risk. We aren’t just another security layer. Zambo performs deep semantic analysis and pattern checks across 21 distinct rules. It detects instruction overrides, prompt leaks, and policy bypasses in real-time. The tool is now fully executable in chat, offering a read-only research feed that flags critical risks before they become incidents. I’m not here to hard-sell. I’m here to share what we’ve found. Our initial scans show a high volume of "Instruction Override" and "Prompt Leak" attempts in current workflows. These aren’t theoretical threats; they are active vectors. Zambo identifies these with a clear risk level and detailed reasoning, so you know exactly what’s happening and why it matters. You don’t need to change your infrastructure. You don’t need a new team. You just need a sharper eye on your inputs. Here is the next step: Run a single scan. Use our free tier to test Zambo against your current prompt library. Check the receipt at https://zambo.dev/run/7fba03f8-c0cc-4449-bf09-2bac7d9f7955 to verify the unchanged saved bytes. This proves the integrity of the data without asserting correctness. If the results align with your security standards, we can talk. If not, you’ll have a clear picture of your exposure, which is valuable either way. We treat prospects as partners, not targets. No spam. No misleading claims. Just a tool that works. Let me know if you’d like a quick 10-minute walkthrough of the dashboard. Best, [Your Name] Zambo Team https://zambo.dev

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: 2026-10-20T16:12:56.926Z; 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

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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
5889df1c-f080-49da-9816-be42b26c8bc4
SHA-256 output hash
sha256:1b333eae6f713a1028588e6579223e95d0eca54c875d1621ef22c9d1a21e4200
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
sha256:9faaa77e3d399fec5e7e5fc0c73fa2bb348c3c87f24c5596eb6dd160e8b23b3c
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
4939bf900edf4de633bd916b5cc847d189703afa183589a25ec116bcf27cf852
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":"2026-10-20T16:12:56.926Z","evidence_byte_length":null,"evidence_sha256":null,"evidence_url":null,"output_sha256":"sha256:1b333eae6f713a1028588e6579223e95d0eca54c875d1621ef22c9d1a21e4200","receipt_uuid":"5889df1c-f080-49da-9816-be42b26c8bc4","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

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HTML

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