Public work receipt · checkable record

Memory remember · saved and checkable

✓ This result hasn’t changed since it was saved.

Sent using Zambo

Saved:
What was asked: The request recorded for this receipt.

Zambo is the verifiable work layer for AI.

Observed result

source receipt id: 23c0730f-871a-40de-bff7-9774dfc9c788 source output hash: sha256:f38d24d099109379ac0da07d417eb39a43c459327cddefb856ad588600e93a66 output: {"status":"saved","fact_id":"dc0d756e-3a0f-4a92-8562-08a3fbc1d7e0","fact_hash":"d57a2ccce7f5614688a2f4a64e86e5ecc86e891ad7c2edc0d406f10733254768"} redacted projection: true source commitment checked: true

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: 2026-11-02T21:05:21.996Z; 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
cf93a2a1-c207-496c-9bdc-83890aeb7f65
SHA-256 output hash
sha256:6de4f150839a84d59a821c9112212ef520a09bb2586d3442fcf2de65124d3676
Canonical bytes
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
Timestamp

Bound call context

Receipt schema
0.4
Tool name
memory_remember
Tool version
4.0.0
Permission scope
public
Caller type
session
Caller ID
sha256:719a6a648c9d4c9692ed1196dff5c1bb87f285e3543afc7adcbd4aeadd332b1b
Declared side effects
state_write
Side-effects schema
zambo-side-effects/1
Declaration hash
sha256:dfb4412aa429d3ac637a05668c435bcc90a251363fcdd49f7b85ae4ab55b5bc9

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
empty
Evidence SHA-256
unavailable
Byte length
unavailable

Neutral Nostr anchor

Event ID
8ac49728a15fa0d0038a507fa8cfa4cb79b87ef14d3b5d56ac652a9f3fcea131
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":"2026-11-02T21:05:21.996Z","evidence_byte_length":null,"evidence_sha256":null,"evidence_url":null,"output_sha256":"sha256:6de4f150839a84d59a821c9112212ef520a09bb2586d3442fcf2de65124d3676","receipt_uuid":"cf93a2a1-c207-496c-9bdc-83890aeb7f65","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

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HTML

<a href="https://zambo.dev/run/cf93a2a1-c207-496c-9bdc-83890aeb7f65?ref=badge"><img src="https://zambo.dev/api/receipt/cf93a2a1-c207-496c-9bdc-83890aeb7f65/badge.svg" alt="Verifiable Zambo receipt"></a>

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