Where great cars
live forever.
Now Accepting Founding Members
Intelligence. Provenance. Community…
For discerning collectors.
Intelligence. Provenance. Community…
For discerning collectors.
A documented car sells for more. We do the documenting — permanently, verifiably, with a record that travels with the car forever and can be verified by any buyer in the world.
Only the car lives on the blockchain. What information travels with it — and who sees it — is entirely your decision.
Every annual update adds a new permanent blockchain entry. By year five, your car has five timestamped records showing five years of documented custody. That chain tells any buyer more than any single appraisal ever could.
Every owner. Every transfer. Every country. The chain of custody that gives a car its story — and its value. You decide how much of that story to share, and with whom.
Only the car's cryptographic fingerprint lives on the blockchain — never your documents, never your name. The record proves authenticity without revealing anything about the owner.
Three visibility tiers — Owner Only, HammerDown Members, or Shared with a buyer. You set who sees what. Your documents stay encrypted on our servers. Even HammerDown cannot access them without your permission.
30,000+ premium auction records, all $100K+. Color premiums. Venue efficiency. VIN history with red flag detection.
Your physical garage took years to build. The lighting. The climate control. The collection itself — each car chosen deliberately, each one a statement.
HammerDown is where that collection lives permanently. Every car documented. Every record preserved. Every story told — exactly as you want it told.
Find the people who understand exactly what you've built — and why it matters.
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.
100 founding members. Each reviewed personally.
If HammerDown is the right fit for your collection, we will be in touch.
By invitation only. Not every application will be accepted.
