Technology Deep Dive

Built for Scale,
Designed for Trust

TerraChain combines cutting-edge blockchain technology with proven geospatial systems to create an unbreakable chain of land ownership.

Blockchain Powered Rust Smart Contracts PostGIS Spatial

65K TPS

Theoretical throughput

<400 ms

Block finality time

$0.00025

Average transaction fee

System Architecture

Five-layer defense-in-depth architecture

Presentation Layer

User interfaces & access points

L1

React Native Mobile SvelteKit Web Portal SMS Gateway QR Verification WhatsApp Bot

API & Authentication Layer

Gateway & identity management

L2

GraphQL Gateway OAuth 2.0 + DID KYC/AML Provider Rate Limiting API Keys

Business Logic Layer

Core processing & workflows

L3

Registration Engine Transfer Workflow Dispute Resolution Notification Service Audit Logger

Data Layer

Storage & caching systems

L4

PostGIS (Spatial) Arweave (Documents) Redis (Cache) Kafka (Events) S3 (Media)

Blockchain Settlement Layer

Immutable truth source

L5

Blockchain Mainnet Anchor Programs Merkle Trees Chainlink Oracles Multi-Sig Wallets SPL Tokens

Technology Decisions

Why we chose each component

Blockchain

Sub-second finality, $0.00025 per transaction, 65k TPS capacity. Proof of History enables timestamp verification.

Rust + Anchor

Smart Contracts

Memory-safe smart contracts with built-in security checks. Zero runtime exceptions, formal verification ready.

PostGIS

Spatial Data

Industry-standard geospatial with topology validation. Supports complex polygon operations and overlap detection.

Arweave

File Storage

Permanent document storage with one-time payment model. 200+ year guaranteed persistence.

Kafka

Messaging

Event sourcing for audit trail and system integration. Handles 1M+ events/second with exactly-once semantics.

Chainlink

Oracles

Decentralized oracles for off-chain data verification. Price feeds, proof-of-reserve, and VRF.

ARCHITECTURE

Smart Contract Preview

Anchor framework on Blockchain

land_registry.rs

#[program]
pub mod land_registry {
    use super::*;

    #[derive(Accounts)]
    pub struct RegisterParcel<'info> {
        #[account(init, payer = owner)]
        pub parcel: Account<'info, Parcel>,
        #[account(mut)]
        pub owner: Signer<'info>,
        pub system_program: Program<'info, System>,
    }

    pub fn register_parcel(
        ctx: Context<RegisterParcel>,
        coordinates: Vec<[f64; 2]>,
        metadata_hash: [u8; 32],
    ) -> Result<()> {
        // Validate & store on-chain
        Ok(())
    }
}

Data Flow: Land Registration

From survey to blockchain in 5 steps

01

Survey

Mobile app captures GPS coordinates, photos, and witness signatures

02

Validate

PostGIS validates boundaries and detects overlapping claims

03

Hash

SHA-256 fingerprint generated for all registration data

04

Anchor

Merkle root committed to Blockchain permanently

05

Security Architecture

Defense in depth across all system layers

Cryptographic

Ed25519 digital signatures
SHA-256 content hashing
AES-256 encryption at rest
TLS 1.3 in transit

Operational

Multi-sig admin operations
Time-locked deployments
Formal verification (Anchor)
$100k bug bounty program

Infrastructure

Geo-distributed RPC nodes
Cloudflare DDoS protection
Intelligent rate limiting
Custom WAF rules

Compliance

GDPR data handling
SOC 2 Type II audit
ISO 27001 certified
Quarterly pen testing

Benchmarks

Tx Finality <1s

Registration Cost $0.02

Uptime SLA 99.95%

Query Latency <50ms

Data Durability 200+ yrs

Developer Resources

Everything you need to integrate

API Reference

REST & GraphQL documentation with examples

SDK Libraries

TypeScript, Python, Rust, Go

Integration Guides

Step-by-step tutorials & examples

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