✅Verifiable Product Review
The Verifiable Product Review feature enables authentic, tamper-resistant product reviews by linking every rating and feedback entry to a verified proof of purchase. Unlike traditional review systems, DEXPIRY ensures that only real buyers can leave feedback, eliminating fake reviews, bots, and incentive-driven manipulation.
Purpose
Most online review platforms suffer from unreliable feedback caused by:
fake or paid reviews,
reviews from non-buyers,
duplicate or manipulated ratings.
DEXPIRY solves this problem by using warranty tokens as cryptographic proof of purchase, making every review verifiable and trustworthy.
Token-Based Proof of Purchase
Each purchased product or service issued through DEXPIRY is represented by a token that confirms:
the product identity,
the time and place of purchase,
the issuing seller or service provider.
The token acts as a verifiable purchase credential that cannot be forged or duplicated.
Only Basic Users who currently hold a valid token for a specific product or service are eligible to submit a review.
Who Can Leave a Review
To submit a review, a user must:
own a DEXPIRY token representing the reviewed product or service,
be authenticated as the current token holder.
This ensures:
one review per valid purchase,
no reviews from non-customers,
no review farming or artificial inflation.
Review Submission Flow
Basic User selects a product linked to their token
User submits:
rating (e.g. stars or score),
written feedback (optional)
Review is permanently linked to the token ID
Review becomes publicly verifiable as “Purchased & Verified”
The system allows optional aggregation and anonymization while preserving verifiability.
Why Reviews Cannot Be Manipulated
DEXPIRY prevents review manipulation by design:
reviews are token-gated,
tokens are issued only at purchase,
ownership is cryptographically verifiable,
reviews cannot be duplicated or edited by sellers.
DEXPIRY is currently the only system that combines proof-of-purchase, ownership verification, and immutable audit trails in a single review infrastructure.
Applicability Across Products and Services
The Verifiable Product Review feature applies to:
physical products,
digital goods,
subscription services,
repairs and service interactions.
Any product or service that issues a DEXPIRY token can use this functionality.
Benefits
Trustworthy, purchase-verified reviews
No fake or paid reviews
Higher consumer confidence
Fair representation of product quality
Improved decision-making for buyers
Verifiable Product Reviews transform feedback from opinion-based signals into verified trust indicators. By requiring token ownership as proof of purchase, DEXPIRY creates a review ecosystem where authenticity is guaranteed and manipulation is structurally impossible.
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