The Open Neuroscience Graph (openneuroscience.org) is an open-access, curated knowledge graph that maps the open science ecosystem in neuroscience as a browsable digital garden. Built from an Obsidian vault and published as a static website using Quartz, the project replaces traditional linear presentation with a networked structure of interlinked Markdown notes. Bidirectional links, full-text search, and an integrated graph visualization allow users to navigate thematic relationships dynamically rather than sequentially. This submission preserves the complete source material required to sustain and replicate the resource: all Markdown content, media attachments, Quartz configuration files, and site customizations. By archiving the vault alongside its rendered website, the record ensures versioned, long-term access to both the intellectual content and the technical publishing framework. Researchers, educators, and open-science practitioners may explore the site directly, download the vault for offline use in Obsidian, or fork the material to build new, derivative knowledge bases.Persistent URI: w3id.org/openneuroscience