Public work receipt · checkable record

Read a document or web page · saved and checkable

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

Sent using Zambo

Saved:
What ran: pdf_extract
Job summary: url: https://zambo.dev/add/

Zambo is the verifiable work layer for AI.

Observed result

url: https://zambo.dev/add/ content type: text/html word count: 568 extracted text: Add Zambo to your AI | Zambo - search the live native Zambo capability catalog" /> Skip to content Z zambo Tools Tools Research capability_search Find the right tool for your job. Live data live_price Check current market prices. Documents pdf_extract Read the numbers in a PDF. Site checks ghost_audit_site Check a website for issues. Safety prompt_shield Check text for prompt injection. Leads leadsignal Find source-backed business leads. See all 153 tools Work Memory Handover Continue Private Jobs Proof Receipts See a real run Verify a result Numbers Pricing Founder For agents Receipt Bot zambo.dev/mcp Copy For agents Add to my AI Add CONNECT YOUR AI Add Zambo to your AI One connection gives your AI live tools, private notes you choose to save, cross-AI handoffs, and a checkable receipt for every call. See live public numbers . Start a task in any supported AI. Wrap it up and resume elsewhere with a saved handover. Free to start: 20 calls + 1 wrap-up free every day; picking up in another AI is always free. Resets at 00:00 UTC (7:00 PM Eastern). No account or API key. Claude ChatGPT Cursor VS Code Grok Windsurf Other MCP apps Use this Zambo link in your AI&#x27;s connection settings: https://zambo.dev/mcp Choose Claude, ChatGPT, Cursor, Gemini, VS Code, Grok, Windsurf, or another supported app below. Level 2: Day Pass $0.99/24h or Zambo Pass $29/30d, paid once. Both remove Zambo’s shared cap, keep notes through the pass plus 30 days, and unlock eligible proof packs. One owner’s pass covers the invited people and AIs in a shared Private Job. Compare passes . Then try one simple request Choose one and paste it into your AI chat: Copy: Use Zambo: is this text a scam? <paste text> Copy: Use Zambo: remember that my business is <what you do>. Copy: Hey Zambo, wrap up this session. Then open another AI with Zambo and say &#x27;Continue my Zambo session&#x27;. ChatGPT needs a paid ChatGPT plan with developer mode turned on (Settings → Apps). Free ChatGPT? Use Claude or Grok. Keep useful work ready for tomorrow Your saved notes are private. Save only details you choose to keep, then wrap up before switching AIs. Ask Zambo to remember a detail you choose. When you switch AIs, wrap up the session first, then continue in the other AI. Copy the day-two starter The handle can retrieve facts you explicitly saved, so treat it as private. It is not payment authorization. Know someone who could use this? Share your invite link. When someone activates a paid Day Pass through it, you get 2,000 bonus calls—not cash. Self-referrals do not qualify. Preparing your invite link… Try Zambo Chat See a real handover Already sent work? Open My handovers from your private owner link. Keep going with Zambo in your AI Get receipts for your own AI work. Add one link, then ask in plain English. Add Zambo to your AI Z ZAMBO.DEV Proof for everything your AI does. https://zambo.dev/mcp Copy Explore Start here Connect your AI See it work Add Zambo Tools Capabilities Receipts Handover Verify a receipt Zambo by the numbers Founder x402 for agents LangChain receipts Team framework receipts Memory AI hands For agents Receipt Bot Pricing Docs Details for developers AER-1 receipt format Cross-AI continuity How verification works Elsewhere Zambo on X Brennan on X Source code dev.to &copy; 2026 Brennan Zambo Free to try. Privacy &middot; Terms

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 an execution receipt?

An execution receipt is a public record of a reported AI agent tool call. Its byte commitment and provenance claim can be checked independently; neither alone authenticates the issuer. Read the canonical definition of an AI agent execution receipt.

What the receipt can and cannot prove

What is this?

Zambo's receipt store reports a tool call and records its result. The SHA-256 commitment covers the exact canonical bytes. The provenance label is bound to v0.4 receipt bytes when that check passes, but no pinned signature or trusted issuer key is checked. An anchor can timestamp a fingerprint; it does not authenticate the issuer.

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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Or re-run this exact call, using the same tool and arguments.

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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: 2026-11-08T10:10:31.110Z; 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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Show receipt data and verification evidence

Committed provenance claim

EXECUTED BY ZAMBO

The metadata claim is consistent with the verified receipt bytes; issuer is not authenticated.

Receipt ID
a682f06e-e67f-49be-b446-e74862de19bb
SHA-256 output hash
sha256:04c593e20c60f6b476b91861eb72140c6f02d265d836088981f0853161045525
Canonical bytes
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
Timestamp

Bound call context

Receipt schema
0.4
Tool name
pdf_extract
Tool version
4.0.0
Permission scope
public
Caller type
session
Caller ID
sha256:9f37034209ddcd479730b424486bba422ecfa0ca311957331919ff19a43dd1e7
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
ok
Evidence SHA-256
sha256:15591e2a31638add11b717e318afe60700485c05738398d6037949de837fee47
Byte length
28437

Fetch exact evidence bytes

Upstream provenance

This receipt is independently auditable against the named upstream source. This is not a mathematical correctness claim.

  • Source: · queried at: · raw response hash:

Neutral Nostr anchor

Event ID
3d70bec09cced4ba87ad41874ed20eb4329d9d73ff210f1290ee69f9672f9535
Anchor status
published
Public key
e13475107d30c918ec664adf2ab1141024a22fb35190f82c9e933704fa49af41

Relay hints: wss://relay.primal.net

Schema: zambo-receipt-anchor/1

Anchor envelope bytes:

{"anchored_at":"2026-11-08T10:10:31.110Z","evidence_byte_length":28437,"evidence_sha256":"sha256:15591e2a31638add11b717e318afe60700485c05738398d6037949de837fee47","evidence_url":"https://zambo.dev/api/evidence/15591e2a31638add11b717e318afe60700485c05738398d6037949de837fee47","output_sha256":"sha256:04c593e20c60f6b476b91861eb72140c6f02d265d836088981f0853161045525","receipt_uuid":"a682f06e-e67f-49be-b446-e74862de19bb","schema_version":"zambo-receipt-anchor/1"}

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

Relay publication is separate from receipt integrity. When the original signed event is available, Zambo retries pending, partial, or failed anchors about once a minute. Relay acknowledgements are external, so there is no guaranteed completion time; the receipt remains checkable from its saved bytes and verification link.

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/a682f06e-e67f-49be-b446-e74862de19bb/badge.svg)](https://zambo.dev/run/a682f06e-e67f-49be-b446-e74862de19bb?ref=badge)

HTML

<a href="https://zambo.dev/run/a682f06e-e67f-49be-b446-e74862de19bb?ref=badge"><img src="https://zambo.dev/api/receipt/a682f06e-e67f-49be-b446-e74862de19bb/badge.svg" alt="Verifiable Zambo receipt"></a>

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