The internet is entering a provenance crisis. Text, images, audio, datasets, and binaries can be generated, transformed, copied, and stripped of metadata faster than institutions can verify their origin. Xi, also called Sigil, belongs in this space: content provenance for an AI-shaped world.
The idea is straightforward. Sigil embeds or attaches tamper-evident provenance signals to content and supports later verification. It is not enough to say “watermarking” — many watermarks are fragile or depend on removable metadata. The stronger framing is provenance infrastructure: identity, transformation history, verification, and forensic recovery as one workflow.
Claims stay bounded. Sigil is not a universal watermark, not a guarantee against every adversary, not a blanket statement about paraphrased meaning. It is a pilot-stage platform with documented file-type coverage, known gaps, and a cryptographic engineering roadmap. That honesty makes it more credible in a noisy category.
The market context is easy to read: media organisations, AI labs, archives, legal teams, and software distributors all need better ways to answer where an artifact came from and whether it changed. Sigil’s role is to make that question technically inspectable rather than purely reputational.
Make origin technically inspectable, not merely reputational.