Members catalogue what they own — including the pieces they have no intention of selling.
CatenaLux looks across every member's catalogue and finds the trades that exist between them.
Three things that are true of the network today.
A member can catalogue a collection in full without offering any of it publicly. Most pieces in the network are private.
Where cash forms part of a trade it moves through licensed providers and regulated escrow. CatenaLux holds no balances of any kind.
A chain of three or four people, arranged where a straightforward swap between two of them was never possible.
Most are between two people. Sometimes three, sometimes four: your watch goes to one member, their painting to another, that member’s piece back to you. Everyone ends the day with something they wanted, and nobody had to sell first and buy separately. Where the pieces don’t quite balance, a modest amount of cash closes the gap.
The method is adapted from market-design research — the study of how to arrange exchanges when a straightforward swap between two parties isn’t possible, but a chain of three or four would satisfy everyone in it. Applied to objects, it finds trades a conventional marketplace cannot see.
A member can catalogue a collection in full without offering any of it publicly. Most pieces in the network are private. When a trade becomes possible that depends on one of them, its owner is told discreetly and decides for that trade alone — nothing is revealed, and nothing moves, until they say so.
Where cash forms part of a trade it moves through licensed providers and regulated escrow. CatenaLux never holds, issues or moves funds on your behalf, and holds no balances of any kind. This was decided early and deliberately: the platform is the place trades are found, not a place money rests.
It began with a smaller observation: people who own serious collections frequently don’t know what is in them. Purchases accumulate over decades, across houses and countries. The watch bought in Tokyo, the print from a Paris gallery, the guitar from an estate sale — different drawers, different safes, no single view.
The first idea was a private tool for knowing what one owned. What became clear while building it was that cataloguing is half of something larger. Once a hundred people know what they have, whether any of it could move between them becomes a question with an answer.
CatenaLux was built by its founder, CJ, working from Bangkok over the eighteen months since.
The network is closed, and members arrive by introduction. The texture that makes trading on trust possible cannot be advertised into being — it comes from who the first members are and who they vouch for. That composition matters more than any feature.
If someone has sent you here, they can introduce you. If you have a question, write to us.