Verifiable receipt dc9a611e - receipt_publication 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 receipt_publication call on Zambo: {"schema":"zambo.redacted-receipt-publication/1","redacted_projection":true,"source_receipt_id":"4e2

Observed result

schema: zambo.redacted-receipt-publication/1 redacted projection: true source receipt id: 4e248f6a-e785-4466-9605-3a901b7f1c6f source output hash: sha256:7b691ce1296510fe7493536c1a959acf56bdc97a94eeead3bbaa777dd8bb04cf 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":"1705ffbe-b0f3-4fc6-bf8b-537f57a8d970","url":"https://zambo.dev/handover/1705ffbe-b0f3-4fc6-bf8b-537f57a8d970","reused":false,"agent_id":"agent-aaa15e03d5133b83246bd3f1","agent_url":"https://zambo.dev/agent/agent-aaa15e03d5133b83246bd3f1","badge_url":"https://zambo.dev/badge/agent-aaa15e03d5133b83246bd3f1.svg","share_text":"Here's the handover for Dana at Rye & Co: Wrote menu copy for the 8.25 sourdough and the 3-loaf bundle. https://zambo.dev/handover/1705ffbe-b0f3-4fc6-bf8b-537f57a8d970 Each listed step has a verifiable receipt you can check in your browser.","workflow_receipt_url":"https://zambo.dev/run/6ba2d7c5-dd93-43b3-96cc-6a2214ebdf45","verify_url":"https://zambo.dev/api/v2/receipt/6ba2d7c5-dd93-43b3-96cc-6a2214ebdf45/verify","steps":2,"ai_use_statement":"AI use: Unspecified AI helped with 2 of 2 steps. See the listed receipts.","sources":{"resolved":0,"not_resolved":0,"not_checked":0},"warnings":[],"acceptance_url":"https://zambo.dev/handover/1705ffbe-b0f3-4fc6-bf8b-537f57a8d970/acceptance.json","release_hint":"hold","ais":["Unspecified AI"],"not_checked":[],"shield":"pass","visibility":"public","redactions":0,"owner_url":"https://zambo.dev/handover/1705ffbe-b0f3-4fc6-bf8b-537f57a8d970"}

This is the saved result preview, not proof that the answer was correct.

Check this receipt Run your own
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.

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.

UNLOCK 24H DAY PASS ($0.99) →

See all plans on the pricing page →

RUN YOUR OWN FREE CALL →

Or re-run this exact call, using the same tool and arguments.

Share this receipt

Share on X ·

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: 2026-10-20T02:06:07.492Z; 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

Want a verifiable receipt for every job your bots do?

Add Zambo Receipt Bot to your team · File this in Receipt Bot

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
dc9a611e-dd51-5549-a544-0f29cf6b3791
SHA-256 output hash
sha256:3b8335956346811c308a6e9c9f4f96076c8cb16f50f73644dfe56ce3c70e6d0d
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:f00ae5ea40f8c5833416d07ea60dc8e65b6d7bf842bfa040dfdf0eed8f05f023
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
3743219645629d535abfd0efb1939b0ec7ddd651cd8b786b081d2998748589a2
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":"2026-10-20T02:06:07.492Z","evidence_byte_length":null,"evidence_sha256":null,"evidence_url":null,"output_sha256":"sha256:3b8335956346811c308a6e9c9f4f96076c8cb16f50f73644dfe56ce3c70e6d0d","receipt_uuid":"dc9a611e-dd51-5549-a544-0f29cf6b3791","schema_version":"zambo-receipt-anchor/1"}

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

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/dc9a611e-dd51-5549-a544-0f29cf6b3791/badge.svg)](https://zambo.dev/run/dc9a611e-dd51-5549-a544-0f29cf6b3791?ref=badge)

HTML

<a href="https://zambo.dev/run/dc9a611e-dd51-5549-a544-0f29cf6b3791?ref=badge"><img src="https://zambo.dev/api/receipt/dc9a611e-dd51-5549-a544-0f29cf6b3791/badge.svg" alt="Verifiable Zambo receipt"></a>

Open badge SVG

Recent receipts

53,218 verifiable receipts minted

RUN YOUR OWN FREE CALL →

Get your own: connect https://zambo.dev/mcp. Free daily calls, no API key.

Open the interactive receipt view