# Set of Essential Records
**Domain:** Deep Time / Records / Knowledge Preservation
**Doc Type:** Canonical Wiki Entry
**Maturity:** Developed
**Evidence / Concept Status:** Established OECD NEA concept
## Definition
A **Set of Essential Records (SER)** is a curated body of records selected because future generations will need them to understand a repository and make informed decisions.
## Why It Matters for Deep Time Continuity
It provides a direct analogue for selecting the minimum records required to reconstruct continuity rights, provenance, state lineage, and obligations.
## Existing Architecture / Evidence
OECD NEA guidance defines SER as part of a broader RK&M preservation strategy.
## Evidentiary Boundary
A continuity SER would need different content, including identity, election, state lineage, contracts, rights, and cryptographic succession.
## Related Ontology
[[wiki/Records Knowledge and Memory Across Generations|Records Knowledge and Memory Across Generations]] · [[wiki/Key Information File|Key Information File]] · [[wiki/Deep-Time Institutional Memory|Deep-Time Institutional Memory]] · [[wiki/Personal Authoritative State|Personal Authoritative State]]
## Sources / Primary Anchors
- https://cms.oecd-nea.org/jcms/pl_15090/
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## Canonical Branch
[[wiki/Deep Time Continuity|Deep Time Continuity]]
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