Verifiable receipt 95a956ca - 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":"566

Observed result

schema: zambo.redacted-receipt-publication/1 redacted projection: true source receipt id: 566a5dc5-fdd6-45ef-af69-dca7ea4a3cd8 source output hash: sha256:f9e7478234ecdef3fdcafa9e88146280a779b0e00e155306042c5c3fd8a61899 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":"55a92f8a-51eb-4afa-911a-c1692ea79f4c","url":"https://zambo.dev/handover/55a92f8a-51eb-4afa-911a-c1692ea79f4c","reused":false,"agent_id":"agent-3e2d3b3a39942dc073127b23","agent_url":"https://zambo.dev/agent/agent-3e2d3b3a39942dc073127b23","badge_url":"https://zambo.dev/badge/agent-3e2d3b3a39942dc073127b23.svg","share_text":"Here's the handover for Audit Peer Agent: Session A looked up the BTC price; handing the receipt to a peer agent for acceptance testing.. https://zambo.dev/handover/55a92f8a-51eb-4afa-911a-c1692ea79f4c Each listed step has a verifiable receipt you can check in your browser.","workflow_receipt_url":"https://zambo.dev/run/2c187a7a-1c16-4225-8b7b-4704fdd0767e","verify_url":"https://zambo.dev/api/v2/receipt/2c187a7a-1c16-4225-8b7b-4704fdd0767e/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/55a92f8a-51eb-4afa-911a-c1692ea79f4c/acceptance.json","release_hint":"hold","ais":["Unspecified AI"],"not_checked":[],"shield":"pass","visibility":"public","redactions":0,"owner_url":"https://zambo.dev/handover/55a92f8a-51eb-4afa-911a-c1692ea79f4c"}

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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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: 2026-10-18T13:16:52.760Z; 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"}}}

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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
95a956ca-9d0f-5ff6-a3e0-cf87a6fca7b4
SHA-256 output hash
sha256:6b9d1564a4ac5b7c465ce768de5384970f2d644fc9afd0ebcc43b0d0f4d8eaf3
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
sha256:728724b8aeaa2990f7bd3163f9ef2835bfa41a73fef7250f281f5f6b94435618
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
fa4464c21d43d6b249b48bad6e93c57de63ba253af62ac2a7e0fb1d8e7e58ec9
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":"2026-10-18T13:16:52.760Z","evidence_byte_length":null,"evidence_sha256":null,"evidence_url":null,"output_sha256":"sha256:6b9d1564a4ac5b7c465ce768de5384970f2d644fc9afd0ebcc43b0d0f4d8eaf3","receipt_uuid":"95a956ca-9d0f-5ff6-a3e0-cf87a6fca7b4","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/95a956ca-9d0f-5ff6-a3e0-cf87a6fca7b4/badge.svg)](https://zambo.dev/run/95a956ca-9d0f-5ff6-a3e0-cf87a6fca7b4?ref=badge)

HTML

<a href="https://zambo.dev/run/95a956ca-9d0f-5ff6-a3e0-cf87a6fca7b4?ref=badge"><img src="https://zambo.dev/api/receipt/95a956ca-9d0f-5ff6-a3e0-cf87a6fca7b4/badge.svg" alt="Verifiable Zambo receipt"></a>

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