# Public Data Infrastructure > **Machine-Evolution Nexus:** [[articles/Digital Darwinism and the Invisible World of Machine Evolution|Digital Darwinism and the Invisible World of Machine Evolution]] provides the evolutionary and computational context for this supporting concept. **Domain:** Knowledge Commons / AI **Doc Type:** Supporting Canonical Node **Maturity:** Developed ## Definition Public data infrastructure consists of openly governed repositories, standards and services that make scientific or civic data durable and usable. ## Nexus Context Comparative genomics, protein prediction and AI for science rely on accumulated public sequences, structures, metadata and access tools. Evolutionary signal becomes legible through institutional continuity. ## Relationships [[wiki/Training Data|Training Data]], [[wiki/Knowledge Commons|Knowledge Commons]], [[wiki/UCSC Genome Browser|UCSC Genome Browser]], [[wiki/AI for Science|AI for Science]] ## Sources / Provenance - Developed from the cited research in the central article and the surrounding continuity, rights and evolutionary architecture.