Will any major social platform implement mandatory cryptographic content provenance for all uploads by 2029?

Given the increasing concerns about misinformation, digital authenticity, and data security, several major platforms have already started to explore cryptographic solutions for content provenance. For instance, in 2025, a major social media platform announced a pilot project for verifying the authenticity of news uploads using blockchain technology, reflecting a clear trend toward these measures. As regulatory pressures mount and consumer demand for transparency grows, it seems likely that by 2029, at least one major platform will adopt mandatory cryptographic provenance for all uploads to enhance trust and accountability.