One Size Does Not Fit All: Machine-Readable Rights Reservations

This Do Not Train Registry article surveys several machine-readable methods for expressing AI training rights reservations and compares how well each works. It says ai.txt saves network fees because it is checked before download, but it only works on sites the rights holder controls. The article notes C2PA manifests are removed by X and Pinterest, and that domain registration and HTTP headers protect content at download. It describes the browser extension as the only real option for works the rights holder does not host and that are not in the LAION-5B dataset.