The Provenance Vault is a permanent, blockchain-verified record of your car's complete history. Every owner. Every restoration. Every concours result. Every appraisal. You control who sees what — and the record travels with the car forever, adding verified value at every future sale.
A car with a complete Provenance Vault record commands a premium at auction. We estimate 8–15% above comparable undocumented examples. On a $500,000 car, that's $40,000–$75,000 in recovered value. On a $5,000,000 car, it's $400,000–$750,000.
Every owner. Every transfer. Every country. Documented and verified — so the next buyer knows exactly what they're inheriting. You control what's visible and to whom.
Each entry permanently minted to the blockchain. Immutable, tamper-proof, verifiable by anyone. The record travels with the car forever — long after you've sold it.
A car with a complete Provenance Vault record commands a premium at auction. We estimate 8–15% above comparable undocumented examples. On a $500K car, that's $40–75K recovered.
23,000+ premium auction records, all $100K+. HammerScore ratings derived from real transactions. Color premium data. Venue efficiency. VIN history with red flag analysis. The intelligence to know exactly what to bid — and when to walk away.
Get Early AccessEvery marque has a home. The most significant cars have their own address. Connect with the small number of collectors worldwide who own what you own.
For cars with documented race history. Le Mans. Daytona. Sebring. The Nürburgring.
For cars that have competed at recognized concours d'elegance. Pebble Beach. Amelia Island. Villa d'Este.
127 cars. Every one changed hands for over $5 million. If your car is here, you already know what that means.
Members signal when they're considering selling — before the car ever goes to an auction house. Private. Discreet.
HammerDown members get intelligence, community, and access at every major event on the collector car calendar.
Barrett-Jackson. RM Sotheby's. Gooding Christie's. Pre-auction intelligence briefs, real-time HammerScore during sales, private member dinner.
The most prestigious concours on the East Coast. Private breakfast for members with cars entered. On-site Vault documentation.
The most glamorous auction in the world. European member gathering. Pre-sale intelligence brief. Private dinner for Monaco attendees.
Concorso d'Eleganza Villa d'Este. The most beautiful concours in the world. For members with cars in The Concours Garage.
Pebble Beach. Gooding Christie's. RM Sotheby's. Priority intelligence briefs, reserved table at the private member dinner, on-site Vault documentation.
Cars & Coffee meetups. Private garage tours. Member-hosted collection viewings. The community you've been looking for.
The architecture makes it impossible to produce a list of "members with cars worth over $X in city Y" — even if someone tried. Your privacy is structural. HammerDown employees cannot access your Vault records without your explicit permission. Your data is encrypted with keys only you control.
"Built for people who require discretion."
Vault records encrypted with member-specific keys. HammerDown employees cannot access your records without your explicit permission.
Only a cryptographic fingerprint is minted on-chain — not your data. The blockchain proves authenticity without revealing anything.
Three visibility tiers: public signals only, members only, or owner-approved full access. You decide who sees what — and when.
Member identity is never co-located with collection value or location data. No one can query "who has a $10M collection in Scottsdale."
We review every application personally. If HammerDown is the right fit for your collection, we'll be in touch.
We review every application personally.
Leave your contact information and tell us about your collection. We review every request personally.
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