Verifiable receipt 1ac54590 - 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":"e9d

Observed result

schema: zambo.redacted-receipt-publication/1 redacted projection: true source receipt id: e9dcb6e0-6349-4b02-9524-a21b61a69c0f source output hash: sha256:9f959970f94c195d2e7754eda87e9dd32db39aeeb1de5bccf3f721fcd6186c6b 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":"bd7e5325-33fd-4c5e-b029-76b781fa2f51","url":"https://zambo.dev/handover/bd7e5325-33fd-4c5e-b029-76b781fa2f51","reused":false,"share_text":"Here's the handover for Delivery of zambo_universal: https://zambo.dev/handover/bd7e5325-33fd-4c5e-b029-76b781fa2f51. Each listed step has a verifiable receipt you can check in your browser.","workflow_receipt_url":"https://zambo.dev/run/bdc7422b-fc4b-4793-af38-cd9971c125ae","verify_url":"https://zambo.dev/api/v2/receipt/bdc7422b-fc4b-4793-af38-cd9971c125ae/verify","steps":5,"ais":["unknown"],"not_checked":["Step aa725980-0ad4-491b-9f45-93e115322473: tool did not complete successfully","Step 75253fbc-018d-4488-b727-a49e28dca565: tool did not complete successfully"],"shield":"pass","visibility":"public","redactions":0,"owner_url":"https://zambo.dev/handover/bd7e5325-33fd-4c5e-b029-76b781fa2f51","next":["Send the link to Acme","See it as your client will: https://zambo.dev/handover/bd7e5325-33fd-4c5e-b029-76b781fa2f51?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.

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.

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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: 2026-10-19T11:28:51.610Z; 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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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
1ac54590-f16e-5eaa-a2cc-3ed89db539a2
SHA-256 output hash
sha256:e40e9168b8487184c7031b2a849b87110305ea35f0e9f1169adae424a9921cec
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
sha256:603cb53d1f82b3477490529548e283efbcef178c207174ba47671a4625b8aa74
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
14cc9e92ced2b33f387fa3e9798f29258e05ec1552b09a0edd9e8bde01122e40
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":"2026-10-19T11:28:51.610Z","evidence_byte_length":null,"evidence_sha256":null,"evidence_url":null,"output_sha256":"sha256:e40e9168b8487184c7031b2a849b87110305ea35f0e9f1169adae424a9921cec","receipt_uuid":"1ac54590-f16e-5eaa-a2cc-3ed89db539a2","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/1ac54590-f16e-5eaa-a2cc-3ed89db539a2/badge.svg)](https://zambo.dev/run/1ac54590-f16e-5eaa-a2cc-3ed89db539a2?ref=badge)

HTML

<a href="https://zambo.dev/run/1ac54590-f16e-5eaa-a2cc-3ed89db539a2?ref=badge"><img src="https://zambo.dev/api/receipt/1ac54590-f16e-5eaa-a2cc-3ed89db539a2/badge.svg" alt="Verifiable Zambo receipt"></a>

Open badge SVG

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