Ethereum Address Service (EAS)

Mapstone is the world's first platform turning real-world addresses into digital assets. The company enables street addresses and postal codes to be minted, owned, and traded as unique NFTs (non-fungible tokens) on the Ethereum blockchain. Each address and neighborhood becomes a verifiable digital asset tied to a physical location. With 168 million+ U.S. addresses available as Address NFTs and 30,000+ postal codes as Neighborhood NFTs, Mapstone has created a comprehensive ecosystem for location-based digital ownership.

At the core of Mapstone's innovation is Address Quest™, a real-world property game built on Ethereum where players compete based on housing market performance by postal code. The game features a 10,000 ETH prize pool and uses the monthly Zillow Home Value Index (ZHVI) for scoring. Neighborhood NFT owners earn 10% royalties on all mints and 1% on marketplace sales within their postal code, automatically paid in ETH. The platform's flywheel effect turns NFT activity into geographic insights, which Mapstone Asset Management (Mapstone AM) uses to acquire and manage real-world properties, offering the community access to tokenized real estate investment opportunities.