Editing Codex/Requirements (section)

=== 4.1 Erasure Coding and Data Redundancy ===

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==== 4.1.1 Description and Priority ====

Core mechanism for ensuring data durability through redundancy. (Priority: High)

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==== 4.1.2 Functional Requirements ====

DAT-101: Data Splitting and Organization
* The system MUST implement basic data splitting:
** Fixed-size block splitting
** Slot organization
** Configurable slot sizes
** Padding for incomplete slots
* The system MUST implement basic data tracking:
** Unique content identifiers (CIDs)
** Dataset manifests
** Slot assignment status
* The system SHOULD support advanced organization:
** Dynamic slot sizing
** Adaptive block sizes
** Hierarchical manifests

DAT-102: Erasure Coding Implementation
* The system MUST implement core coding features:
** Reed-Solomon coding
** Configurable redundancy parameters
** Systematic coding (original data remains prefix)
** Interleaved block encoding
** Cross-neighbourhood redundancy
* The system SHOULD implement advanced features:
** Dispersed replicas
** Prefetching strategies
** Repair bandwidth optimization
** Adaptive redundancy levels

DAT-103: Data Durability Management
* The system MUST provide durability guarantees:
** 99.99% data availability
** Redundancy monitoring
** Repair triggering
** Recovery verification
* The system SHOULD support advanced durability:
** Predictive repair scheduling
** Redundancy optimization
** Geographic distribution

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