Receipt publication · 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

schema: zambo.redacted-receipt-publication/1 redacted projection: true source receipt id: ba0c35fa-2904-57aa-ac29-aeb334b8f06b source output hash: sha256:eefa45474d99a413d7d15e1d82ac67745e445543c2bd0315ef19a9024a52cb6c source tool: workflow_receipt 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: {"type":"verifiable-workflow-receipt","version":"1","workflow_id":"a19ea198-2e45-5817-b0f7-6f254d00bb9c","goal":"Find the current BTC/USD price from a read-only source and return the source.","status":"ok","agent":{"framework":null,"model":null},"steps":[{"seq":1,"tool":"zambo_universal","receipt_id":"5d8e5e57-b108-40c3-9531-5e4711bc5d90","receipt_hash":"495adb24ee7ec01d46c954344a89c871d31c21e3a23080aaf0f4b6c213bd4c43","started_at":"2026-09-25T09:37:36.452Z","ended_at":"2026-09-25T09:37:36.647Z","status":"ok"},{"seq":2,"tool":"zambo_universal","receipt_id":"b190843a-53bc-4c58-9c9a-d5d4c6ea7715","receipt_hash":"5c280ddb14fe01aeddd5b3441be25f0078255222102543930fa417d81a1d7d38","started_at":"2026-09-25T09:37:39.999Z","ended_at":"2026-09-25T09:37:40.099Z","status":"ok"},{"seq":3,"tool":"zambo_universal","receipt_id":"38f7add5-83ca-484e-81b8-767316f65931","receipt_hash":"92299530a9082c4e0403ed98a58da7d09e788bf51154b12e79e774e178b56f1b","started_at":"2026-09-25T09:37:42.684Z","ended_at":"2026-09-25T09:37:42.776Z","status":"ok"},{"seq":4,"tool":"zambo_universal","receipt_id":"406b7b09-ea80-487c-a2a2-6eff62699d19","receipt_hash":"d991108b55aad08adefcef0d1607b800336d1be18cf37fa4b330d61c81e3adb4","started_at":"2026-09-25T09:37:45.707Z","ended_at":"2026-09-25T09:37:45.815Z","status":"ok"},{"seq":5,"tool":"zambo_universal","receipt_id":"99efa84d-7a39-40f5-8e9d-a024f078a6d3","receipt_hash":"7aaf0c5e351d16bf74f76f9f7f34b4882c9b1a0554298bfd860df2cbb2d42dab","started_at":"2026-09-25T09:37:56.326Z","ended_at":"2026-09-25T09:37:56.497Z","status":"ok"},{"seq":6,"tool":"zambo_universal","receipt_id":"60af2762-92e7-4cd7-9785-3f2910c83afc","receipt_hash":"070381db2ffcbcbfb27c43edd294e926e028505deb3823a7ef19729f42a5e9c6","started_at":"2026-09-25T09:38:00.530Z","ended_at":"2026-09-25T09:38:00.767Z","status":"ok"},{"seq":7,"tool":"zambo_universal","receipt_id":"7cbc6d3b-12b4-4d45-8720-bb75bb9b4314","receipt_hash":"61323df596cbcdbd0a904c087c14ed46155bd1247fa64098479b063755313431","started_at":"2026-09-25T09:38:04.230Z","ended_at":"2026-09-25T09:38:04.354Z","status":"ok"}],"merkle_root":"ea43ea6404c926c1d11864e312908a313b0faac5e860a86bcd9d28d34eec7b2e","rollups":{"step_count":7,"duration_ms":27902,"errors":0,"total_tokens":null},"output_hash":"5683b2a51d9af03404a7f902b22443076f16aa6b0dbbb03f81d7b0b2ae6d02ca","receipt_id":"ba0c35fa-2904-57aa-ac29-aeb334b8f06b","verify_url":"https://zambo.dev/workflow/a19ea198-2e45-5817-b0f7-6f254d00bb9c"}

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: 2026-10-22T00:18:15.534Z; 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"}}}

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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
ecb9af15-c1d8-5d1b-a36c-a1df64856f84
SHA-256 output hash
sha256:df6e1042e2be659cc1ccc8e1ad9f0af781196167717ca2939e5299987c255eac
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:ad57007d7d9f7c13011a51009e692fc9bbf78608c21aa673a8d69d9ef007b0eb
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
0f325dffa4c5f562ba5543240cebbd5741b0ffc0b1ddc20f17bd70f27d7df233
Anchor status
published
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":"2026-10-22T00:18:15.534Z","evidence_byte_length":null,"evidence_sha256":null,"evidence_url":null,"output_sha256":"sha256:df6e1042e2be659cc1ccc8e1ad9f0af781196167717ca2939e5299987c255eac","receipt_uuid":"ecb9af15-c1d8-5d1b-a36c-a1df64856f84","schema_version":"zambo-receipt-anchor/1"}

Anchor status "published": Published to all configured relay targets.

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/ecb9af15-c1d8-5d1b-a36c-a1df64856f84/badge.svg)](https://zambo.dev/run/ecb9af15-c1d8-5d1b-a36c-a1df64856f84?ref=badge)

HTML

<a href="https://zambo.dev/run/ecb9af15-c1d8-5d1b-a36c-a1df64856f84?ref=badge"><img src="https://zambo.dev/api/receipt/ecb9af15-c1d8-5d1b-a36c-a1df64856f84/badge.svg" alt="Verifiable Zambo receipt"></a>

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