Verifiable receipt c1301429 - 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":"add

Observed result

schema: zambo.redacted-receipt-publication/1 redacted projection: true source receipt id: addb5b1d-8b70-4b56-bff2-63f98a47fbec source output hash: sha256:57fc94445a2158033ea976f92df59e41c29bb3d1d6a548dcf4ccd1ce34353551 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":"8e872014-256f-41cd-a977-9333e19bd7be","url":"https://zambo.dev/handover/8e872014-256f-41cd-a977-9333e19bd7be","reused":false,"share_text":"Here's the handover for TEST round-trip, ignore: https://zambo.dev/handover/8e872014-256f-41cd-a977-9333e19bd7be. Each listed step has a verifiable receipt you can check in your browser.","workflow_receipt_url":"https://zambo.dev/run/f39f745f-c390-4ac4-8240-30d28ecf6301","verify_url":"https://zambo.dev/api/v2/receipt/f39f745f-c390-4ac4-8240-30d28ecf6301/verify","steps":2,"ais":["unknown"],"not_checked":[],"shield":"pass","visibility":"public","redactions":0,"owner_url":"https://zambo.dev/handover/8e872014-256f-41cd-a977-9333e19bd7be","next":["Send the link to TEST deep-auditor re-verify","See it as your client will: https://zambo.dev/handover/8e872014-256f-41cd-a977-9333e19bd7be?preview=client","Make it private and branded with Zambo Pass: https://zambo.dev/upgrade?tier=monthly"]}

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: 2026-10-18T12:57:13.596Z; 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
c1301429-75d9-563f-a0c1-5f4d5e75dfb3
SHA-256 output hash
sha256:64676bf98ec0f06350007a9e0fada55d03f421d77697f8e5491cd7c9bc7fc7cb
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
sha256:9bc27064a3fd7e0794247415222a9af5a01a4cc52b9dd247c0d33d3de24ce48b
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
aca40d1f6cfbd20bc92879cd4fd6d144bda2333f230355f48a87690857a9a380
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":"2026-10-18T12:57:13.596Z","evidence_byte_length":null,"evidence_sha256":null,"evidence_url":null,"output_sha256":"sha256:64676bf98ec0f06350007a9e0fada55d03f421d77697f8e5491cd7c9bc7fc7cb","receipt_uuid":"c1301429-75d9-563f-a0c1-5f4d5e75dfb3","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/c1301429-75d9-563f-a0c1-5f4d5e75dfb3/badge.svg)](https://zambo.dev/run/c1301429-75d9-563f-a0c1-5f4d5e75dfb3?ref=badge)

HTML

<a href="https://zambo.dev/run/c1301429-75d9-563f-a0c1-5f4d5e75dfb3?ref=badge"><img src="https://zambo.dev/api/receipt/c1301429-75d9-563f-a0c1-5f4d5e75dfb3/badge.svg" alt="Verifiable Zambo receipt"></a>

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