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: 4e776d0f-6a93-462d-af1e-d335acd9af5d source output hash: sha256:6bd3aadc334ced965fd5af87c560826cf847467d4d421d82b140e2305ba6e4e8 source tool: workflow_close 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: {"count":3,"merkle_root":"745684121c0381d272127a2ce6fcfc33c96d84cd6ac41555ed4a4ef731996479","children":[{"id":"57122227-7c03-4b21-b027-7fb9eee3eb62","output_hash":"0bc58e63f4f5cf93d27263a3180ec4c6c55be159161d1adb975b658a873d0d15"},{"id":"43d8d0a5-c7b3-4776-8f12-ff7436db6b8b","output_hash":"4b588dae1eab35bbfae9d97428b7f5b25506bd3bc961697147ebcbd3eec3a80f"},{"id":"c9419f37-7470-4880-a041-1e6315ebcc1d","output_hash":"a87eb09b7e9b82bb56a6e558caaba960986759b27ac9ae2b4e0a88a6ee4c85e6"}],"message":"Created a workflow snapshot containing 3 eligible receipts. To seal this, call workflow_seal with ","first_closed_at":"2026-10-16T14:30:23.114Z","free_view_expires_at":"2026-10-17T14:30:23.114Z","page_state":"free","disclosure":"This workflow page is fully visible until 2026-10-17T14:30:23.114Z. Seal it to keep it, add your branding, and get the PDF pack. Individual receipts stay available either way.","disclosure_note":"Expiry is currently disabled, so no workflow page is expiring right now.","verification_status":"not_verified","issuer_authenticated":false}

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: 2026-10-22T14:29:12.660Z; 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

LOGGED BY AGENT

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

Receipt ID
c8050022-b711-58bc-ac9c-0f7e3d3ae8f6
SHA-256 output hash
sha256:70bc19d2fa22ba10fe8ccc46d2f3527cc0a4245b315328670eee959c0d548413
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:db46add22b0b0539bebb8fbbed4f81dea9ab8869b81148900f70362e833645d3
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
9a0adaf1f4298f7d5e8d6f0f76a24309b8f1a30f9f52d15e3c9e917bc77c3bc2
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":"2026-10-22T14:29:12.660Z","evidence_byte_length":null,"evidence_sha256":null,"evidence_url":null,"output_sha256":"sha256:70bc19d2fa22ba10fe8ccc46d2f3527cc0a4245b315328670eee959c0d548413","receipt_uuid":"c8050022-b711-58bc-ac9c-0f7e3d3ae8f6","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/c8050022-b711-58bc-ac9c-0f7e3d3ae8f6/badge.svg)](https://zambo.dev/run/c8050022-b711-58bc-ac9c-0f7e3d3ae8f6?ref=badge)

HTML

<a href="https://zambo.dev/run/c8050022-b711-58bc-ac9c-0f7e3d3ae8f6?ref=badge"><img src="https://zambo.dev/api/receipt/c8050022-b711-58bc-ac9c-0f7e3d3ae8f6/badge.svg" alt="Verifiable Zambo receipt"></a>

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