Baseline Technical Specification

(Yellow Paper)

0.1.0 — Draft\ February 2026

Engineering Companion to the Baseline Protocol Overview (White Paper)

This document provides the formal definitions, data structures, algorithms, and operational requirements necessary to implement, validate, and build on Baseline.

Table of Contents

1. Introduction and Scope
2. Claim Schemas and the Subject Type System
3. Evidence System
4. Evidence Graph Data Model
5. Verification Engine Execution Model
6. Verification Object Schema and Qualification Semantics
7. Attestation and Validator Protocol
8. On-Chain Data Anchoring and Storage Architecture
9. Known Failure Modes and Mitigations
10. API Specification
11. Reference Implementation Notes

Appendices

• Appendix A: Worked Claim Examples
• Appendix B: BCE Specification
• Appendix C: Feature Engineering Reference
• Appendix D: Test Vector Suite
• Appendix E: Formal Definitions and Glossary