Public work receipt · checkable record

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Saved:
What ran: pdf_extract
Job summary: url: https://www.vishal-tiwari.me/services

Zambo is the verifiable work layer for AI.

Observed result

{"url":"https://www.vishal-tiwari.me/services","content_type":"text/html","word_count":439,"extracted_text":"What we build · Vishal Tiwari\n\nVishal Tiwari .\n\nWork\n\nWhat we build\n\nAbout\n\nJoin us\n\nContact\n\nStart a project\n\nWork What we build About Join us Contact Start a project\n\nWhat we build · CustomeAI Websites, AI agents and automation, built around your problem. You don't pick a package off a list. Tell us what's going wrong and we'll suggest the simplest thing that fixes it, whether that's a website, an AI agent or an automation tool.\n\nWebsites Business websites with bookings, online payments and an admin panel. For example: MAHAGRO INDIA , bookings in English and Marathi\n\nAI agents Assistants that read documents and answer customer questions from your own data. For example: LexAgent , flags risky clauses in contracts\n\nAutomation tools Enquiries, emails and WhatsApp replies that run themselves, in one dashboard. For example: CustomeAI , enquiries saved and alerted automatically\n\nAlso inside our projects The parts that make it work for a real business.\n\nBookings and payments Razorpay deposits and full payments by UPI and card, with a WhatsApp route if payment ever fails.\n\nOnline stores Catalogue, cart, checkout, coupons and automatic delivery of digital products.\n\nAdmin panels Every booking, enquiry and order in one place, with export to Excel.\n\nCare after launch Automatic uptime checks, fixes and updates once you are live.\n\nHow we work Four stages, each ending in a checkpoint.\n\nUnderstand Goals and scope, written down.\n\nPlan Architecture and screens agreed before any code.\n\nBuild Fast, clean and reliable, with previews as we go.\n\nLaunch Live, plus 30 to 90 days of support.\n\nOur promises What you can count on.\n\nFixed quotes\n\nThe price is agreed before work starts. No hidden fees.\n\n30 to 90 days of support\n\nFree fixes and help after launch.\n\nDirect line to the builder\n\nI lead every project myself.\n\nSee CustomeAI pricing ↗\n\nWho we work with best Small businesses that are ready to grow.\n\nTraining institutes and coaches\n\nwho take bookings and deposits\n\nShops and brands\n\nmoving their catalogue online\n\nClinics, studios and local services\n\ntired of managing enquiries in WhatsApp\n\nFounders\n\nwho need a first working version of an app\n\nTell us the problem. A few lines about your business is enough. You'll get an honest read and a real price within 24 hours.\n\nEmail [REDACTED_EMAIL]\n\nPhone / WhatsApp +91 82915 69470\n\nStart a project WhatsApp me\n\nVishal Tiwari .\n\nFounder of CustomeAI . Websites, AI agents and automation tools for small businesses in India.\n\nPages\n\nWork\n\nWhat we build\n\nAbout\n\nJoin us\n\nContact\n\nContact\n\[REDACTED_EMAIL]\n\nWhatsApp +91 82915 69470\n\nCustomeAI (customeai.in)\n\nElsewhere\n\nGitHub\n\nLinkedIn\n\nX\n\nResume (PDF)\n\n© 2026\n\nVishal Tiwari Borivali West, Mumbai"}

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.

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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: 2026-11-15T13:02:00.236Z; external immutability is not checked

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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
56d5eed3-3f32-4a92-a4ce-6d62a7451b3a
SHA-256 output hash
sha256:918aaefc1104e2d097d0be1510e8e7be226de60606387c598f26ea6e5fc85093
Canonical bytes
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
Timestamp

Bound call context

Receipt schema
0.4
Tool name
pdf_extract
Tool version
4.1.4
Permission scope
public
Caller type
session
Caller ID
sha256:b5ff0c6b16edd93dcfee0cc203c86620f1dafa4eb99e4656e2b910dd34d3c3a4
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
Evidence captured: upstream error response
Evidence SHA-256
sha256:6e1ee07848a2a01b36c65bbb99bd71b8e51e964c9abda7e4d87a510146989f94
Byte length
31418

Fetch exact evidence bytes

Upstream provenance

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

  • Source: www.vishal-tiwari.me · queried at: · raw response hash: sha256:6e1ee07848a2a01b36c65bbb99bd71b8e51e964c9abda7e4d87a510146989f94

Neutral Nostr anchor

Event ID
81692c311fe91b3e7563320c72bf732e8447087e2e39568d9198d4be44747e85
Anchor status
published
Public key
e13475107d30c918ec664adf2ab1141024a22fb35190f82c9e933704fa49af41

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

Schema: zambo-receipt-anchor/1

Anchor envelope bytes:

{"anchored_at":"2026-11-15T13:02:00.236Z","evidence_byte_length":31418,"evidence_sha256":"sha256:6e1ee07848a2a01b36c65bbb99bd71b8e51e964c9abda7e4d87a510146989f94","evidence_url":"https://zambo.dev/api/evidence/6e1ee07848a2a01b36c65bbb99bd71b8e51e964c9abda7e4d87a510146989f94","output_sha256":"sha256:918aaefc1104e2d097d0be1510e8e7be226de60606387c598f26ea6e5fc85093","receipt_uuid":"56d5eed3-3f32-4a92-a4ce-6d62a7451b3a","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/56d5eed3-3f32-4a92-a4ce-6d62a7451b3a/badge.svg)](https://zambo.dev/run/56d5eed3-3f32-4a92-a4ce-6d62a7451b3a?ref=badge)

HTML

<a href="https://zambo.dev/run/56d5eed3-3f32-4a92-a4ce-6d62a7451b3a?ref=badge"><img src="https://zambo.dev/api/receipt/56d5eed3-3f32-4a92-a4ce-6d62a7451b3a/badge.svg" alt="Verifiable Zambo receipt"></a>

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