Verifiable receipt 95c7d603 - 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":"370

Observed result

schema: zambo.redacted-receipt-publication/1 redacted projection: true source receipt id: 3706bf0b-106c-4bba-ab5d-cf8f9edade25 source output hash: sha256:9b23436c11cdfe352ef62d7251b4cc4cc410cd274d2e74e924bc8652a43b3ae3 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":"ec26f50e-1454-44ba-9df1-17bb807f2196","url":"https://zambo.dev/handover/ec26f50e-1454-44ba-9df1-17bb807f2196","reused":false,"agent_id":"agent-c9ce3541a43c2e5b413760ea","agent_url":"https://zambo.dev/agent/agent-c9ce3541a43c2e5b413760ea","badge_url":"https://zambo.dev/badge/agent-c9ce3541a43c2e5b413760ea.svg","share_text":"Here's the handover for Q4 market research for Test Client: https://zambo.dev/handover/ec26f50e-1454-44ba-9df1-17bb807f2196. Each listed step has a verifiable receipt you can check in your browser.","workflow_receipt_url":"https://zambo.dev/run/0e84a432-d6c3-4ffc-b480-ef56bd2dee8c","verify_url":"https://zambo.dev/api/v2/receipt/0e84a432-d6c3-4ffc-b480-ef56bd2dee8c/verify","steps":2,"ais":["Unspecified AI"],"not_checked":[],"shield":"pass","visibility":"public","redactions":0,"owner_url":"https://zambo.dev/handover/ec26f50e-1454-44ba-9df1-17bb807f2196"}

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: 2026-10-18T18:43:01.942Z; external immutability is not checked

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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
95c7d603-3cf1-5034-ae24-d7c346ad9e00
SHA-256 output hash
sha256:c007518b91bdd185b010776a61fa8db38e8b92e9d865ee3f57a1e52d92a62638
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:cf18ffd16ebb471e7b872e338e454a1ff661c81886253fa58b445cbb00210464
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
78ed9a18866b2343f4af2b9ed5a53e4be1a3a87332195ea472759fe3b467c235
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":"2026-10-18T18:43:01.942Z","evidence_byte_length":null,"evidence_sha256":null,"evidence_url":null,"output_sha256":"sha256:c007518b91bdd185b010776a61fa8db38e8b92e9d865ee3f57a1e52d92a62638","receipt_uuid":"95c7d603-3cf1-5034-ae24-d7c346ad9e00","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/95c7d603-3cf1-5034-ae24-d7c346ad9e00/badge.svg)](https://zambo.dev/run/95c7d603-3cf1-5034-ae24-d7c346ad9e00?ref=badge)

HTML

<a href="https://zambo.dev/run/95c7d603-3cf1-5034-ae24-d7c346ad9e00?ref=badge"><img src="https://zambo.dev/api/receipt/95c7d603-3cf1-5034-ae24-d7c346ad9e00/badge.svg" alt="Verifiable Zambo receipt"></a>

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