Editing Nomos/Requirements (section)

=== 4.1 Base Layer ===

<span id="private-proof-of-stake"></span>
==== 4.1.1 Private Proof of Stake ====

Description: The Base Layer MUST implement a Private Proof of Stake consensus mechanism that preserves validator privacy and prevents targeted attacks.

Functional Requirements:

PPOS-001: Validator Privacy
* The system MUST implement basic privacy:
** Hide validator stakes through Blend Network
** Preserve block proposer anonymity
** Prevent stake deanonymization attacks
** Maintain validator metadata privacy
* The system SHOULD support enhanced privacy:
** Advanced timing analysis protection
** Enhanced anonymity set generation
** Improved network attack resistance

PPOS-002: Consensus Security
* The system MUST provide basic security:
** Prevent stake grinding attacks
** Ensure fair block production
** Maintain consensus finality
** Handle network partitions
* The system SHOULD implement advanced security:
** Quantum attack resistance
** Eclipse attack prevention
** Advanced fork choice rules
** Complex partition handling

PPOS-003: Network Resilience
* The system MUST ensure basic resilience:
** Support commodity hardware validators
** Handle intermittent connectivity
** Recover from network failures
** Maintain liveness under attack
* The system SHOULD provide enhanced resilience:
** Advanced recovery mechanisms
** Dynamic attack mitigation
** Adaptive network topology
** Self-healing capabilities

<span id="data-availability"></span>
==== 4.1.2 Data Availability ====

Description: The Base Layer MUST provide scalable data availability with light client verification capabilities.

Functional Requirements:

DAS-001: Data Sampling and Verification
* The system MUST implement basic sampling:
** Efficient data availability sampling
** Light client verification support
** Sample size optimization
** Verification latency targets
* The system SHOULD support advanced sampling:
** Adaptive sample sizes
** Enhanced verification methods
** Optimized proof generation
** Advanced fraud proofs

DAS-002: Data Organization
* The system MUST implement basic sharding:
** Data segmentation and distribution
** Cross-shard verification
** Shard synchronization
** Data redundancy management
* The system SHOULD support advanced sharding:
** Dynamic shard allocation
** Cross-shard optimization
** Adaptive redundancy
** Load balancing

DAS-003: Data Integrity and Recovery
* The system MUST ensure basic integrity:
** Data reconstruction capabilities
** Integrity verification
** Error detection and correction
** Bandwidth optimization
* The system SHOULD implement advanced features:
** Advanced reconstruction methods
** Enhanced error correction
** Optimized bandwidth usage
** Proactive integrity checks

<span id="network-and-consensus-privacy"></span>
==== 4.1.3 Network and Consensus Privacy ====

Description: The Base Layer MUST implement two complementary privacy systems:

* Required for MVP:
** Nomos Blend Network: A specialized privacy system for Private Proof of Stake with three modules:
*** PTM (Persistent Transmission Module): Manages validator connections and drop messages
*** MBM (Message Blending Module): Processes consensus messages through mixing and timing obfuscation
*** CTM (Cover Traffic Module): Generates anonymity sets through cover messages
** libp2p-mix: A P2P networking module for general network privacy
* Future Enhancements:
** Advanced timing analysis protection
** Enhanced anonymity set generation
** Improved network attack resistance

Functional Requirements:

BNP-001: Persistent Transmission Module
* The system MUST maintain persistent validator connections with basic privacy:
** Establish and maintain secure validator connections
** Handle drop messages for connection privacy
** Monitor connection quality and health
** Manage connection lifecycles securely
* The system SHOULD implement advanced connection features:
** Dynamic connection management based on network conditions
** Enhanced privacy through adaptive drop message rates
** Advanced connection health monitoring and recovery
** Optimized connection resource management

BNP-002: Message Blending Module
* The system MUST process and blend consensus messages:
** Process consensus messages through mixing
** Implement basic timing analysis protection
** Integrate fully with Cryptarchia protocol
** Maintain message timing obfuscation
* The system SHOULD enhance message privacy:
** Advanced timing analysis protection mechanisms
** Enhanced message mixing algorithms
** Complex timing pattern obfuscation
** Optimized message processing and blending

BNP-003: Cover Traffic Module
* The system MUST generate minimum required cover traffic:
** Generate and maintain cover message streams
** Create sufficient anonymity sets
** Optimize resource usage for cover traffic
** Balance privacy and bandwidth usage
* The system SHOULD implement advanced cover traffic:
** Dynamic cover traffic generation based on network activity
** Enhanced anonymity set management
** Advanced traffic pattern obfuscation
** Efficient resource utilization strategies

BNP-004: Network Privacy Integration
* The system MUST provide network-level privacy:
** Network-level privacy for non-consensus messages
** Basic private P2P communication capabilities
** Private data dissemination mechanisms
** Basic traffic analysis protection
* The system SHOULD enhance network privacy:
** Advanced traffic analysis protection
** Optimized cover traffic generation
** Larger anonymity set maintenance
** Improved network attack resistance

<span id="coordination-layer"></span>