Check before
you buy.
A verified history for anything worth protecting — so a clean one is worth more, and a stolen one can't sell.
Search the registry
01 · The problem
Stolen things are easy to sell.
Second-hand goods change hands on trust. A buyer sees the price, the photos, gives it a quick once-over — but has no way to know where the thing came from. That blind spot is exactly what makes theft worth it: the resale market quietly launders stolen gear back into circulation.
Take away the resale, and you take away the reason to steal.
02 · The idea
Make the check take five seconds.
Owners register each item by serial number with proof of purchase. Anyone considering a second-hand piece can look that number up before paying — and see instantly whether it's clear or flagged as stolen.
The registry isn't the product. Deterrence is. Once buyers check by habit, stolen goods stop moving — and a thing nobody will buy isn't worth taking in the first place.
03 · Provenance
Not just safety — value.
There's a second reason to register, and it has nothing to do with theft. A car with a full service history sells for more: the paper trail is proof, and proof is worth paying for. Most things have none of that — a guitar's or a bike's story lives in memory and a drawer of loose receipts, if it survives at all.
Vivaldi gives every item a verified record it keeps for life. A registered item is simply worth more than an identical one with no history — and far easier to sell.
That's the quiet engine. Owners register to raise the value of their gear — and every record they build for themselves makes the registry more complete and the check more powerful. Upside for the owner, deterrence for everyone.
04 · How it works
Three moves.
Register
Add a guitar, a bike, an amp — anything with a serial number — and upload proof of purchase. Once reviewed, it becomes a verified record that travels with the item for life: proof of ownership, and the start of its history.
Verify
Before buying second-hand, search the serial number. Clear, flagged, or not yet on record — the answer comes back in seconds, no account needed.
Deter & recover
An owner flags a piece the moment it goes missing. Every search on a flagged item is logged; a validated flag is the alarm that carries real weight.
07 · Scope
Anything with a serial number.
Guitars, amps and speakers already have a serial culture; bikes, cameras and tools are joining. The registry works for anything worth verifying before you buy second-hand — and every category added makes checking more automatic. The habit is the deterrent.