Receipt publication · saved and checkable

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

Sent using Zambo

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

Zambo is the verifiable work layer for AI.

Observed result

schema: zambo.redacted-receipt-publication/1 redacted projection: true source receipt id: 9d4eda20-97a9-4dcf-8321-6e702081012e source output hash: sha256:c111331cf765e4782f0fdf1c56acf731d3bb99dbc7c58bd6c69bd86613ecceee source tool: handover publication notice: This is a newly committed redacted publication copy, not the original tool output. The original commitment is unchanged and its private bytes are withheld. output: {"handover_id":"c5a48d7f-d814-4efc-a4b3-9f71be9b8a3d","url":"https://zambo.dev/handover/c5a48d7f-d814-4efc-a4b3-9f71be9b8a3d","reused":false,"agent_id":"agent-e7d0cc29f25c721ab08f1c28","agent_url":"https://zambo.dev/agent/agent-e7d0cc29f25c721ab08f1c28","badge_url":"https://zambo.dev/badge/agent-e7d0cc29f25c721ab08f1c28.svg","share_text":"Here's the handover for Deep Auditor v6 check: test handover, ignore. https://zambo.dev/handover/c5a48d7f-d814-4efc-a4b3-9f71be9b8a3d Each listed step has a verifiable receipt you can check in your browser.","workflow_receipt_url":"https://zambo.dev/run/cb77a8e9-ea34-431f-85ef-1972bc0e2846","verify_url":"https://zambo.dev/api/v2/receipt/cb77a8e9-ea34-431f-85ef-1972bc0e2846/verify","steps":2,"ai_use_statement":"AI use: test-deep-auditor-2026-10-16 helped with 1 of 2 steps. Unspecified AI helped with 1 of 2 steps. See the listed receipts.","sources":{"resolved":0,"not_resolved":0,"not_checked":0},"warnings":[],"acceptance_url":"https://zambo.dev/handover/c5a48d7f-d814-4efc-a4b3-9f71be9b8a3d/acceptance.json","release_hint":"hold","ais":["test-deep-auditor-2026-10-16","Unspecified AI"],"not_checked":[],"shield":"pass","visibility":"public","redactions":0,"owner_url":"https://zambo.dev/handover/c5a48d7f-d814-4efc-a4b3-9f71be9b8a3d"}

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 this receipt?

This is a verifiable receipt for a journal entry. It confirms receipt, redaction, timestamping, and chaining. It does not attest to execution.

What the receipt can and cannot prove

What is this?

Zambo's receipt store reports a journal entry from an agent or local hook. The SHA-256 commitment covers the receipt bytes. The provenance label is only a claim, not proof of issuer identity or that the reported action happened.

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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: 2026-10-22T13:54:23.063Z; 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

LOGGED BY AGENT

The metadata claim is consistent with the verified receipt bytes; issuer is not authenticated.

Receipt ID
2aa574e2-178e-57a2-ad22-3ebac1b56397
SHA-256 output hash
sha256:3ec5cba0bb5435239865236822cdca710bb595baa921c89778b9f5f47e0537bb
Canonical bytes
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
Timestamp

Bound call context

Receipt schema
0.4
Tool name
receipt_publication
Tool version
4.0.0
Permission scope
public
Caller type
session
Caller ID
sha256:bf57c91e33b454d61393b77e13cdab52cb7c5643370055891130010bd9c1dcbf
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
573db93a01481a6edeffa47c24273f8c47e4c7b492bf3a8ad58ce061be43fdf7
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":"2026-10-22T13:54:23.063Z","evidence_byte_length":null,"evidence_sha256":null,"evidence_url":null,"output_sha256":"sha256:3ec5cba0bb5435239865236822cdca710bb595baa921c89778b9f5f47e0537bb","receipt_uuid":"2aa574e2-178e-57a2-ad22-3ebac1b56397","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

[![Verifiable Zambo receipt](https://zambo.dev/api/receipt/2aa574e2-178e-57a2-ad22-3ebac1b56397/badge.svg)](https://zambo.dev/run/2aa574e2-178e-57a2-ad22-3ebac1b56397?ref=badge)

HTML

<a href="https://zambo.dev/run/2aa574e2-178e-57a2-ad22-3ebac1b56397?ref=badge"><img src="https://zambo.dev/api/receipt/2aa574e2-178e-57a2-ad22-3ebac1b56397/badge.svg" alt="Verifiable Zambo receipt"></a>

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