Tiered Access Control
The Zero Knowledge Proof Data Marketplace uses a tiered access model tied to token ownership. Data providers can control how much is visible at each level — from free previews to full unlocks — with tiers adjusting dynamically based on market inputs and governance rules.


Adaptive Access Tier Framework
The marketplace implements a granular access system, tied to token ownership through the account system:
Access Tiers
Range from Tier 0 (free metadata) to Tier 5 (full dataset access), with escalating token requirements. Tier 0 might provide metadata and a sample, while Tier 5 unlocks the entire dataset.
Dynamic Adjustments
Access tier requirements are designed to adapt to changing market conditions through a three-component oracle system coordinated by off-chain workers:
Oracle System for Dynamic Tier Adjustment
Integrating On-Chain Analytics, Decentralized Pricing, and Governance-Controlled Automation
On-chain Analytics Oracle
Monitors objective metrics like access frequency, tier utilization rates, and token flows directly from blockchain data stored in Patricia Tries.
Decentralized Price Feed
Aggregates external market data from multiple independent sources to establish fair value benchmarks for different data categories.
Governance-Bounded Automation
Implements adjustment algorithms with parameter limits set by governance votes through the democracy pallet, ensuring that automated changes remain within community-approved boundaries.
This oracle design addresses key security considerations including manipulation resistance through median-based aggregation, sybil resistance through stake-weighted reporting, and fail-safe mechanisms that limit adjustment magnitude within any single time period.
