Dong Chain

₿

Bitcoin Layer-0 Security

All assets anchored to Bitcoin's Proof-of-Work network via OmniCore. Zero consensus changes required — maximum censorship resistance.

⚡

RISC-V Smart Contracts

PolkaVM executes contracts at near-native hardware speed. Solidity compiles directly to RISC-V via resolc — 2-4x faster than EVM.

🌉

BitVM2 Trust-Minimized Bridge

1-of-n liveness honesty model. Only one honest operator needed to keep funds safe. SNARK fraud proofs settled on Bitcoin.

🎮

Gaming Asset Sovereignty

ERC-721/1155 characters and items with no admin burn/transfer. Session keys for seamless gameplay. ERC-6551 character-owned inventory.

🏦

RWA Tokenization

Issue real-world assets (real estate, bonds, commodities) on Bitcoin L0 via OmniCore. Bridge to programmable RISC-V smart contracts.

🔗

Instant Cross-Chain

Relay Depository with Solver network — transfer assets across Ethereum, Base, and Solana in under 60 seconds via EIP-712 proofs.

👤

Gasless UX (ERC-4337)

Smart Account wallets with Paymaster sponsorship. FaceID/biometric via P-256. Session keys. Zero gas tokens needed for end users.

🔒

ZK Bitcoin Finality

RISC Zero zkVM batches 1000 blocks into a single zk-STARK proof anchored to Bitcoin — full security at fractional cost per user.

Quick Start

bash

# 1. Clone the repository
git clone https://github.com/dongcore/dongchain
cd dongchain

# 2. Build the node
cargo build --release -p dong-chain-node

# 3. Start local dev node
./target/release/dong-chain-node --dev --tmp

# 4. Compile and deploy your first contract
resolc --target polkavm --optimization 3 MyContract.sol
forge create --rpc-url http://localhost:9944 --private-key $KEY MyContract.sol:MyContract

Architecture

┌─────────────────────────────────────────────────────────────────────┐
│              EXTERNAL NETWORKS (Ethereum · Base · Solana)           │
└───────────────────────────┬─────────────────────────────────────────┘
                            │ EIP-712 cross-chain proofs
┌───────────────────────────▼─────────────────────────────────────────┐
│           DONG CHAIN — LAYER 1 (Substrate Parachain)                │
│   pallet-revive · PolkaVM (RISC-V) · ERC-4337 · XCM · resolc       │
└───────────────────────────┬─────────────────────────────────────────┘
                            │ BitVM2 (1-of-n honesty)
┌───────────────────────────▼─────────────────────────────────────────┐
│              LAYER 0 — MOTHERBOARD                                  │
│        Bitcoin PoW · OmniCore · OP_RETURN · ZK finality             │
└─────────────────────────────────────────────────────────────────────┘

Documentation Map

Section	Description
Yellow Paper	Formal technical specification with cryptographic proofs
PRD	Product requirements, user stories, success metrics
SRS	All functional & non-functional requirements
Architecture	Layer-by-layer system design
Getting Started	Dev environment setup guide
Smart Contracts	Solidity → RISC-V compilation
RWA Use Case	Real-world asset lifecycle
Gaming Use Case	In-game sovereignty model
Security	Threat model & audit checklist

Section

Description

Yellow Paper

Formal technical specification with cryptographic proofs

PRD

Product requirements, user stories, success metrics

SRS

All functional & non-functional requirements

Architecture

Layer-by-layer system design

Getting Started

Dev environment setup guide