# PS-SHA∞ References

- Henk C. A. van Tilborg, *Fundamentals of Cryptology* — hash functions, MACs, and signature foundations for integrity and attestation.
- Classic Merkle tree literature — append-only data structure patterns to support efficient verification and pruning.
- Blockchain whitepapers (e.g., Bitcoin, Ethereum) — chaining and distributed integrity techniques informing RoadChain-inspired attestations.
- NIST SP 800-57 and SP 800-63 — key management and digital identity guidance relevant to binding agents to cryptographic material.