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Know what’s been tried before you try it again.
Retrace keeps a record of every fix a laptop gets, and whether it worked. The next repair starts from there, and when you sell the laptop, the buyer gets the record too.
Drag or tap the cube to turn it
Retrace
- Device
- MacBook Pro 13
- Records
- 4 on Walrus
- Owner
- A → B
- Repair records on Walrus
- Laptops with a history
- Latest Sui checkpoint, read through Tatum
One laptop,three people.
The owner, the buyer and the repair shop each see the same history, from their own side. It belongs to the laptop, so whoever has the laptop next gets it.
Boarding pass ·Owner
NEWunknown laptopKNOWNfull history
Give it a passport.
Register your laptop once. From then on, each repair is saved to it, along with whether it worked.
Included
- Passport on Sui, repairs on Walrus
- Your serial number is never made public
Registered!
Boarding pass ·Buyer
SELLERtheir walletYOUyour wallet
Check it before you buy.
Scan the sticker to see how many owners and repairs it has had. Once you pay, the seller sends a link and the passport moves to you.
Included
- Public summary, no sign-in needed
- Full history on a 7-day link from the seller
It's yours!
Boarding pass ·Repair shop
FIXEDthe repairSIGNEDshop verified
Sign the repair you did.
Open the record the owner sends you and sign it with your shop's wallet. Every later owner sees it marked as checked by you.
Included
- You only see the record you're asked to sign
- Your signature is saved with it on Walrus
Verified!
Got questions?
See the live Mainnet proofNo. The example on this site runs without one. To register a real laptop or hand one over, you need a Sui wallet, or Google sign-in where it's turned on.
It tells you what to check next, based on the symptoms and on which repairs worked or failed. It can't see inside your laptop, so a technician still needs to look at it.
You send the buyer a link. They open it and sign in, then you approve the transfer. From then on only the buyer can see the full history. If someone downloaded a copy before the sale, they still have it.
You can, while you own the laptop, and so can anyone you send a 7-day read-only link to. The records are kept in a Walrus Memory account that Retrace runs, so Retrace can read them too.
As far as you trust the person who wrote it. Owners fill in their own records, and Retrace marks those as reported. A record signed by a repair shop shows the shop's name. Walrus proves when a record was saved and that it hasn't been changed since.