Docs / Problem & Solution
Problem & Solution
Real estate is the world's largest asset class at $326 trillion — yet it remains one of the least accessible and most opaque investments for ordinary people. ChainEstate solves this with fractional tokenization, instant liquidity, and financial privacy powered by Intel TDX TEE.
The Problem
Massive entry barrier
Buying property requires $100,000–$1,000,000+ in capital. Even a "cheap" studio in Dubai costs $150K minimum.
99% of the global population is permanently excluded from real estate wealth.
Zero liquidity
You cannot sell 20% of your apartment. Real estate is all-or-nothing — sell the whole thing or nothing. A typical sale takes 3–12 months.
Capital is locked. Investors cannot rebalance, exit, or access equity without full disposal.
No financial privacy
On public blockchains, every wallet's real estate portfolio is visible to anyone. A whale accumulating Dubai apartments is front-run before deals close.
RWA (Real World Asset) tokens on Ethereum or Solana today expose your entire net worth publicly.
Rent opacity
Traditional rental income distribution is manual, trust-based, and opaque. Investors often cannot verify they received a fair share.
No on-chain proof of yield. Platform operators can skim undetected.
Geographic exclusion
Cross-border real estate investment involves lawyers, notaries, local bank accounts, tax filings in multiple jurisdictions, and 6–18 months of paperwork.
Only wealthy individuals with legal teams can invest internationally.
Existing Solutions — Why They Fail
The Solution
Solves: Massive entry barrier
Fractional tokens from $1
Each PropertyToken represents $1 USDT of equity. Anyone with a wallet and USDT can invest — no minimum, no broker, no paperwork. A user in Indonesia can own $50 of a Dubai penthouse today.
Solves: Zero liquidity
Real on-chain secondary market
SecondaryMarket.sol enables peer-to-peer listing and instant settlement. Sellers call grantOperator + createListing. Buyers call executeBuy. Settlement is one transaction — no waiting.
Solves: No financial privacy
iExec Nox ERC-7984 — Intel TDX TEE
PropertyToken balances are stored as euint256 — encrypted on-chain. Only the holder can decrypt via the iExec Handle Gateway (Intel TDX). On-chain observers see only a ciphertext — impossible to infer holdings.
Solves: Rent opacity
Automated on-chain distribution
RentDistributor.sol receives monthly USDT from the property operator and distributes 90% to holders automatically. Platform takes 5%, maintenance reserve 5%. All totals are on-chain auditable.
Solves: Geographic exclusion
Permissionless — any wallet worldwide
No KYC, no jurisdiction restrictions, no broker. Connect MetaMask, get testnet USDT from the faucet, and invest in 60 seconds from anywhere in the world.
Concrete Example — Alice Buys Dubai Property
Alice visits /faucet
Claims 1,000 testnet USDT. No KYC, no broker. 30 seconds.
Opens Pearl Residences, Dubai
Sees 78% funded, 6.8% yield, $500,000 total value. Decides to invest $100.
Clicks "Encrypt & Buy"
The @iexec-nox/handle SDK sends her tokenAmount to the Intel TDX TEE. Returns an encrypted {handle, handleProof}.
USDT approved + purchase on-chain
Two wallet confirmations: approve(propertyContract, 100_000_000) then purchaseTokens(handle, handleProof, 100). Both on Arbitrum Sepolia.
Alice holds 100 PEARL-DXB-001 tokens
Her balance is stored as euint256 — encrypted. Nobody can see she holds 100 tokens. Not even the platform.
Monthly rent arrives
RentDistributor receives USDT from the property operator. 90% distributed equally to all holders. Alice receives ~$0.57 USDT automatically.
Alice sells half on secondary market
Calls grantOperator + createListing(50 tokens, $1.025/token). A buyer executes. Alice receives 51.25 USDT (after 0.5% fee). All confidential.
Privacy Comparison
❌ Other RWA Platforms
✓ ChainEstate + iExec Nox