Show HN: Witnessd – Prove human authorship via hardware-bound jitter seals (github.com)

The recent launch of Witnessd introduces an innovative approach to verify human authorship through cryptographic mechanisms, significantly impacting the way authorship is validated in the digital age. The system employs "jitter seals," which are tiny, imperceptible delays in typing patterns combined with persistent cryptographic evidence, to create a verifiable chain linking the creator to their work. This capability not only helps establish authorship but also facilitates forensic analysis to detect AI-generated content by analyzing abnormal writing patterns. The significance of Witnessd lies in its ability to provide independently verifiable and tamper-evident process evidence, making it particularly valuable for writers and content creators concerned about digital integrity and authenticity. By integrating hardware-backed security features, such as TPM 2.0 and Secure Enclave, and employing Verifiable Delay Functions (VDF), the system ensures that any modifications to the document can be easily identified. Overall, Witnessd aims to convert doubts about authorship into testable claims while raising the bar for content verification in an increasingly AI-dominated landscape.