The permanent record your collection deserves. The intelligence to know what it's worth. The community that understands what you collect.
A permanent, blockchain-verified record of your car's complete history. Every owner. Every restoration. Every concours result. You control who sees what.
A car with a complete 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.
Every owner. Every transfer. Every country. Documented and verified — so the next buyer knows exactly what they're inheriting.
Each entry permanently minted to the blockchain. Immutable, tamper-proof, verifiable by anyone. The record travels with the car — forever.
Only cryptographic hashes on the blockchain — never your personal data. You control three tiers of visibility. Structurally private, not just by policy.
23,000+ premium auction records, all $100K+. HammerScore ratings derived from real transactions. Color premiums. Venue efficiency. VIN history with red flag detection.
Get Early AccessYour private space on HammerDown. Add your cars, upload photography, connect each one to its Vault record. The digital equivalent of the garage you spent years building.
Step outside and your cars appear in the Community Garages — The Paddock, The Concours Garage, The Legends — alongside every collector worldwide who owns what you own.
Every marque has a home. The most significant cars have their own address.
Documented race history only. Le Mans. Daytona. Sebring. The Nürburgring.
For cars that have competed at recognized concours d'elegance. The standard of perfection.
127 cars. Every one changed hands for over $5 million. If your car is here, you already know.
Members signal when considering selling — before the car ever goes to auction. Private. Discreet.
The architecture makes it impossible to produce a list of "members with cars worth over $X in city Y" — even if someone tried.
"Built for people who require discretion."
Vault records encrypted with member-specific keys. We cannot access your records without your explicit permission.
Only a cryptographic fingerprint on-chain — not your data. The blockchain proves authenticity without revealing anything.
Member identity is never co-located with collection value or location data.
Three visibility tiers. You decide who sees what — and when. Even at point of sale.
We review every application personally. If HammerDown is the right fit for your collection, we'll be in touch.
We review every application personally.
HammerDown is invite-only. Leave your email and tell us about your collection. We review every request personally.
No spam. No pressure. Collector car intelligence, by invitation only.