Everything you need to know about how Chainr works, what we cover, and how your data stays safe.
General
Chainr is a verified private sale register. When you sell something privately, a phone, camera, bike, watch, laptop or any high-value item, Chainr creates a timestamped, ID-linked record of the transaction. Both the buyer and seller receive a signed PDF certificate proving the sale happened, when it happened, and who was involved.
Think of it as an owner's manual for your sale. Not a legal service, not an investigation authority, just a clean, verifiable paper trail that protects both sides.
How it works
Security & privacy
Evidence requests
Sellers
Buyers
Account
Legal
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