A Utility-BackedLayer-1
SUM Chain is a high-performance Layer-1 blockchain powering Koppa (Ϙ) — value backed by real on-chain utility: decentralized storage, verifiable AI compute, encrypted messaging, and document credentials. Not just payments.
Built for the Next Generation
SUM Chain combines cutting-edge technology with practical design to deliver a blockchain that's actually usable for everyday transactions.
Lightning Fast
3-second block times with fast deterministic finality (~18s, 6 confirmations). Your transactions confirm in the time it takes to take a sip of coffee.
Near-Zero Fees
Transaction fees of ~0.001 Ϙ mean you can send any amount without worrying about costs eating into your transfer.
Battle-Tested Security
Ed25519 signatures, Blake3 hashing, and Proof of Authority consensus provide enterprise-grade security without compromise.
Native Decentralized Storage
L1 Proof-of-Retrievability engine with on-chain Merkle proofs. Archive nodes earn Koppa for serving files; cheats are slashed.
Verifiable AI (ZkML)
OmniNode settles zero-knowledge AI inference results on-chain. Pay once for compute, prove it forever.
Native ACL & Identity
On-chain access lists, encrypted messaging (SRC-201), and document-credential token families for tax, equity, healthcare, and more.
Pure Rust
Built entirely in Rust with zero C/C++ dependencies. Memory-safe, blazing fast, and auditable.
Powered by Pure Rust
SUM Chain is built entirely in Rust using only the stable toolchain. No C/C++, Python, Go, JavaScript, or Solidity. Just pure, memory-safe Rust that's auditable, maintainable, and blazing fast.
// Send 10.5 Koppa with minimal fee
let tx = Transaction::new(
chain_id,
sender.address(),
recipient,
koppa_to_base("10.5"), // 10.5 Ϙ
koppa_to_base("0.001"), // Fee: 0.001 Ϙ
nonce,
);
let signed = tx.sign(&sender)?;
node.broadcast(signed).await?;Ed25519
Elliptic curve signatures
Blake3
Lightning-fast hashing
libp2p
Peer-to-peer networking
Gossipsub
Message propagation
PoA Consensus
Round-robin validator rotation
RocksDB
High-performance storage
Everything You Need to Get Started
A complete suite of tools and resources for users, developers, and validators.
Ready to Join the Future?
Start Using Koppa
Get the CLI Wallet
# Build from source (Rust 1.70+ required)
git clone https://github.com/SUM-INNOVATION/sum-chain
cd sum-chain && cargo build --release
# Binaries land in ./target/release/
# - sumchain (full node)
# - sumchain-wallet (CLI wallet)Create Your Wallet
# Generate a new keypair
sumchain keygen --output my-wallet.json
# Your address will be displayed
# Keep your wallet file safe!Receive & Send Koppa
# Check your balance
sumchain-wallet balance --key my-wallet.json
# Send Koppa to another address
sumchain-wallet transfer \
--key my-wallet.json \
--to RECIPIENT_ADDRESS \
--amount 10.5