Verifiable receipt 6361d3ad - 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":"37d

Observed result

schema: zambo.redacted-receipt-publication/1 redacted projection: true source receipt id: 37d837ad-8774-4ae8-97b7-2ab70da6887c source output hash: sha256:dea47b45005267a5d1b22800f1056ab85f83f49b7ce4cafeeb27f4b1e51cc1c7 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":"0947fdb7-b517-4bc1-b859-8ec4265b9b12","url":"https://zambo.dev/handover/0947fdb7-b517-4bc1-b859-8ec4265b9b12","reused":false,"agent_id":"agent-6c42d9a85faac970839ac6c4","agent_url":"https://zambo.dev/agent/agent-6c42d9a85faac970839ac6c4","badge_url":"https://zambo.dev/badge/agent-6c42d9a85faac970839ac6c4.svg","share_text":"Here's the handover for Acme Client: Flag reason test. https://zambo.dev/handover/0947fdb7-b517-4bc1-b859-8ec4265b9b12 Each listed step has a verifiable receipt you can check in your browser.","workflow_receipt_url":"https://zambo.dev/run/53740cb8-f5dc-453e-8bbc-f0d39affc834","verify_url":"https://zambo.dev/api/v2/receipt/53740cb8-f5dc-453e-8bbc-f0d39affc834/verify","steps":2,"ai_use_statement":"AI use: Claude helped with 1 of 2 steps. v5-gauntlet 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/0947fdb7-b517-4bc1-b859-8ec4265b9b12/acceptance.json","release_hint":"hold","ais":["Claude","v5-gauntlet"],"not_checked":[],"shield":"pass","visibility":"public","redactions":0,"owner_url":"https://zambo.dev/handover/0947fdb7-b517-4bc1-b859-8ec4265b9b12"}

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: 2026-10-19T04:31:34.659Z; 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
6361d3ad-3025-5337-ac55-c0dd930ef00f
SHA-256 output hash
sha256:0f26f8fd51253f9e2f549de6d42008c7e61e78715f5ca266b5951bf4d19c7bbe
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
sha256:5f6c865a8ee5a5cd4a8bec64a615072293e5a0a7505cc3faf76b7060e827a04d
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
7e7e4e6d65cc8d06f9f649b851b36e8a338630737ae0595e8abfbd5f8df4a29c
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":"2026-10-19T04:31:34.659Z","evidence_byte_length":null,"evidence_sha256":null,"evidence_url":null,"output_sha256":"sha256:0f26f8fd51253f9e2f549de6d42008c7e61e78715f5ca266b5951bf4d19c7bbe","receipt_uuid":"6361d3ad-3025-5337-ac55-c0dd930ef00f","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/6361d3ad-3025-5337-ac55-c0dd930ef00f/badge.svg)](https://zambo.dev/run/6361d3ad-3025-5337-ac55-c0dd930ef00f?ref=badge)

HTML

<a href="https://zambo.dev/run/6361d3ad-3025-5337-ac55-c0dd930ef00f?ref=badge"><img src="https://zambo.dev/api/receipt/6361d3ad-3025-5337-ac55-c0dd930ef00f/badge.svg" alt="Verifiable Zambo receipt"></a>

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