Proof of Opinion
Put your name on a take onchain, mint a shareable badge, others co-sign.
Prove you read and understood the book, via a short quiz, and collect a reading shelf.
Try it live, freeYour USDC is locked in a smart contract, not sent to us. We can only collect it by delivering before 27 Oct 2026. If we miss it, you take it back yourself from My apps, no permission needed. We can also refund you any time. View the contract on BaseScan.
Promised delivery: 27 Oct 2026 (counted from payment).
Add-ons are not part of this payment. Once your app is delivered you can request them from My apps, and you only pay if you say yes to the quote.
Zara reads 30 books a year. Each one ends with a quick AI generated comprehension check, and her shelf of verified reads helps her land a research role where depth matters.
Book lookup, LLM quiz generation, pass attestation, shelf profile.
Reshape it entirely: new features, your flows, your brand end to end, integrations you need. We scope it with you.
The parts exist in prototypes; quiz-verified per-book credentials are an uncommon combination.
Onchain Reads (EAS on Base) records books read, and Proof of Learning (ETHGlobal) issues soulbound NFTs after passing a quiz; none found combining per-book quizzes into a shelf.
Checked with web searches in October 2026. A search is not proof that nothing similar exists, and the market moves fast, so we recheck before every build.
User-owned AI angle; eligibility unknown.
The complete Read Receipt app: readers finish a book, pass a short quiz written from its middle chapters, and earn a seal on a shelf they can send, with a paywall and quiz writer agent built in.
Every buyer gets the same finished app. Basic branding and copy changes come through a quick form.
Your admin side: revenue, paywall editor, users, rules and the agent log.
Referral and growth mechanics, switched on when you are ready to grow.
Readers never pay to seal a book. Plans add tools around the shelf, clubs pay for a shared shelf, and recruiters pay a small fee to check a shelf with consent.
Optional shelf check fee for recruiters, $0.50 by default. Gas (about $0.004 per seal) can be sponsored by the owner.
Prices are yours to set. Illustrative, not a promise of income.
Unlocked when your app is paid in full
Unlocked when your app is paid in full
Custom work from $1,000: your own question styles, a school or library deployment, catalogue or LMS integrations, extra languages. Scoped on a call.
The recipe (how it is built, the data, costs, risks, build order, the pitch and the demo script) is unlocked when your app is paid in full.
Saying you read widely is easy and impossible to check. Readers who go deep, like researchers, students and self taught people, have no simple way to show which books they actually finished and understood, and readers who want to keep going lack a light ritual that marks the end of a book.
Parts of this exist. Onchain Reads records books read as EAS attestations on Base, and Proof of Learning (an ETHGlobal project) issues soulbound NFTs after a quiz. Goodreads and StoryGraph track reading but on self report. What we did not find is the combination: a per book comprehension quiz written from the chapters, with a passed result sealed onto a public shelf. The idea is a rare combination, not a new primitive.
Unlocked when your app is paid in full
Make a reading life visible and honest, so depth counts for something.
The seal at the last page Finishing a book gets a small ceremony: three questions, then a wax seal on the spine. It turns the end of a book into a moment.
A shelf you can send One link shows every sealed book. It answers 'you say you read a lot' without a speech.
Sunday recall One question from a book finished months ago. Get it right and the seal earns a gold edge. Memory becomes a streak.
Unlocked when your app is paid in full
Cost per use: unlocked when your app is paid in full.
Every shared shelf link is an invitation: a recruiter, a friend or a teacher sees the seals and asks how. Reading clubs bring members in batches, and Sunday recall keeps readers coming back between books.
Unlocked when your app is paid in full
Unlocked when your app is paid in full
Costs and tools are estimates at the time of writing. General information only, not legal or financial advice.
Nine routes from one vessel. Tap a port to open its chart.
Read Receipt turns reading into proof: a short comprehension check after each book and a shelf of verified reads that lives on your own wallet. If you run it, the readers, the book clubs and the shelf data are yours, not a reading platform's that can change rules or close. Your deployment becomes the place your community proves what it knows.
You do not need to. DEPLOYR deploys the app from your wallet and you run it from an admin screen: add books, set quiz length, invite readers. If something needs code later, that is what support and the service path are for.
Many people will not. Start with the ones who do: book clubs that want accountability, students, and job seekers in research or policy roles. Ten committed readers is a real start. If after a month nobody uses it, you have learned that cheaply.
Not perfectly. It proves someone answered questions about the book at a point in time. Be honest about that on your site. Let clubs add their own questions to make it stronger.
Yes. The contract is deployed from your wallet, the payments go to your wallet, and you can verify both on a block explorer. DEPLOYR does not take a cut of your users' payments.
Quizzes ask about a book, they do not reproduce it. Do not paste chapters or long passages into questions. If you work with a publisher, ask them in writing what they are comfortable with.
Readers pay a small monthly fee for unlimited verified reads and a public shelf; book clubs, schools and teams pay a group plan to run shared reading goals. Hitting about $1M a year is a target to aim at, not a promise, and most owners will land well below it.
Illustrative stages, not a forecast. Results depend on you and the market; nothing here is guaranteed.
Put your name on a take onchain, mint a shareable badge, others co-sign.
Create an account and prove your transactions in your own browser. Client-side proving on Miden, nothing leaks.
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Caregivers and parents prove unpaid care work, privately, for loans and jobs.
Recruiters pay a small USDC fee to request verified proofs from candidates, who get paid.
Mentees attest that you changed their path, building a lineage tree of who you lifted up.
Prove you are over 18, a resident, or a degree holder without showing a single document.
Timestamp every hour of deliberate practice and own the 10,000 hour proof.