Off-Chain Storage with IPFS
Large datasets are stored off-chain using IPFS, supplemented by a custom replication management layer implemented through Substrate's off-chain workers that implements periodic health checks and incentive-driven replication.

Specifically, the Marketplace Includes

A tracker service that monitors content addressable storage (CAS) object availability across the network through off-chain worker coordination

Economic incentives tied to the PoSp mechanism managed through custom pallets that reward storage providers proportionally to both their uptime and replication support

A redundancy coordinator implemented as a Substrate pallet that automatically initiates new storage requests when availability metrics drop below threshold
Through these mechanisms, the system targets 99.9% availability while acknowledging that actual performance will require extensive testnet validation. This hybrid model stores metadata in Patricia Tries while keeping data off-chain, reducing blockchain bloat while maintaining decentralized storage principles.
