Public work receipt · checkable record

CRYPTO price, 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: a78b8851-5ab7-4b4d-bf70-a90a46a87b6c source output hash: sha256:d81db1d081672cc7ccfc09330f45bf9c5ebd0edc54d17d1cca03baf35fbcfff4 output: BTC · $76,800.00 USD ▼ 1.29% (24h) · Market cap: $1543.71B Live price via CoinGecko · Mon, 02 Nov 2026 20:45:14 GMT 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: 2026-11-02T20:46:15.195Z; 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
1fcf21d8-1617-4b15-bafc-f9404cd6c5e8
SHA-256 output hash
sha256:bc9d480d81bcb8b81f58f0c8849ab6437bcabb6ed08a3c19b92040097f1413a3
Canonical bytes
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
Timestamp

Bound call context

Receipt schema
0.4
Tool name
live_price
Tool version
4.0.0
Permission scope
public
Caller type
session
Caller ID
sha256:4896d07970de712866ad43a626c3783ad770fe8e11ad5357ff1fa603e57b7f1e
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
empty
Evidence SHA-256
unavailable
Byte length
unavailable

Neutral Nostr anchor

Event ID
5b45f3e194eb99e7a0cdb17609a3a5843175195589d2b994ccceb1281aa9aadd
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":"2026-11-02T20:46:15.195Z","evidence_byte_length":null,"evidence_sha256":null,"evidence_url":null,"output_sha256":"sha256:bc9d480d81bcb8b81f58f0c8849ab6437bcabb6ed08a3c19b92040097f1413a3","receipt_uuid":"1fcf21d8-1617-4b15-bafc-f9404cd6c5e8","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/1fcf21d8-1617-4b15-bafc-f9404cd6c5e8/badge.svg)](https://zambo.dev/run/1fcf21d8-1617-4b15-bafc-f9404cd6c5e8?ref=badge)

HTML

<a href="https://zambo.dev/run/1fcf21d8-1617-4b15-bafc-f9404cd6c5e8?ref=badge"><img src="https://zambo.dev/api/receipt/1fcf21d8-1617-4b15-bafc-f9404cd6c5e8/badge.svg" alt="Verifiable Zambo receipt"></a>

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