Tensorial Rights Framework

Author · Mar 2025 · Published

17-page PDF · not legal advice

In March 2025 I wrote this paper on how to model who owns what in a remix. It became the first version of the rights model Vers1ons checks licenses against.

What the paper covers

A producer makes a beat. A vocalist licenses it for a track. A DJ remixes that track with vocals that came through a separate license chain. Then a film studio wants the remix for a trailer, in the US only, for six months. The paper asks whether the studio can use it and who gets paid.

It models a license as a grid. One side lists rights, such as record and modify. The other side lists terms, such as time and territory. Each cell holds a rule that says whether an action is allowed. Propagation rules carry each original work's restrictions into every remix made from it, so checking a license means checking the whole chain above it.

The paper maps legal grant types onto the model, sketches how a validation call works, and looks at how the cost of a check grows as chains get longer.

A diagram of three stacked layers labeled Record, Reproduce and Modify. Each layer holds filters for time and territory. One action passes through every filter. Another is stopped at the territory filter.
The rights check from section 2.2 of the paper, drawn for this page. Each right is a layer with its own filters. An action goes through only when every filter it meets allows it.

Stack

Product
LaTeX

See also