All photos distibuted must have metadata that is “cryptographically sealed and verifiable” alowing authorities to see exactly who captured an image and how it has been altered all the way from “creation to consumption.” CAI attribution data will consist of “assertions” and “claims.” Assertions contain information about image creation, authorship, and edit actions, which are ultimately wrapped up into “verifiable units” called claims.

Assertions are cryptographically hashed and their hashes are gathered together into a claim. A claim is a digitally signed data structure that represents a set of assertions along with one or more cryptographic hashes on the data of an asset. The signature ensures the integrity of the claim and makes the system tamper-evident

Each time the asset reaches a specific key point in its lifecycle, such as initial creation, completion of some editing operations, publication to social media, etc. a new set of assertions and a claim are created. Each new claim refers to the previous claim, thus creating a chain of provenance for the asset

https://static1.squarespace.com/static/5e531aad6e028a2ed29c3e49/t/5f27fc6c0aec8e324025453f/1596456047676/CAI_WhitePaper_v1_0.pdf

At first standard will be mandaroty for US and EU news outlets, after this will jump to any site with specified number of visitors and finally will spread to all social networks.

It is expected that it'll be added to all iOS and Android smartphones within 2 years. Same will happen with dedicated cameras industry.