[ANN] FlowCoin (FLC) — Fully Post-Quantum| ML-DSA + ML-KEM

FlowCoin (FLC)
A fully post-quantum, ASIC-resistant cryptocurrency on the Bitcoin Core architecture

GitHub • Downloads • Telegram • Discussions

What is FlowCoin?

FlowCoin keeps Bitcoin Core's battle-tested design — UTXO ledger, Script, full-node validation, P2P network, HD wallet — and replaces the parts that won't survive the next decade:

Quantum-resistant signatures. ECDSA/Schnorr fall to a large enough quantum computer (Shor). FlowCoin signs with ML-DSA-44 (CRYSTALS-Dilithium, NIST FIPS 204), witness-only so the UTXO/Script model is unchanged.
Quantum-resistant network encryption. The P2P v2 transport uses ML-KEM-768 (CRYSTALS-Kyber, NIST FIPS 203) key agreement — a post-quantum replacement for the elliptic-curve handshake in Bitcoin's BIP324. On by default: the wire is quantum-safe, not just the coins.
ASIC-resistant, CPU-only mining. Proof-of-work is xcrypt — a RandomX-class, JIT-hardened, memory-hard hash designed so a commodity CPU is the most efficient miner. No ASICs, no GPU farms.
SHA-3 everywhere. Consensus hashing is a single SHA3-256 (Keccak), not double-SHA256.

Monetary policy — identical to Bitcoin

21,000,000 FLC hard cap, 50 FLC initial reward, halving every 210,000 blocks (~4 years)
10-minute target block time, 2-week difficulty retarget
No premine. No ICO. No dev tax. The genesis coinbase is unspendable, exactly like Bitcoin.

Specifications

Ticker	FLC
Proof-of-work	xcrypt (CPU-only, ASIC-resistant, JIT-hardened, RandomX-class)
Signatures	ML-DSA-44 / CRYSTALS-Dilithium (FIPS 204, post-quantum)
P2P encryption	ML-KEM-768 / CRYSTALS-Kyber (FIPS 203) — v2 transport, on by default
Hashing	SHA3-256 (single), SHA-3 Merkle trees
Max supply	21,000,000 FLC
Block time	10 minutes
Premine	None
License	MIT

Status

Testnet: LIVE and growing — past block 50, blocks propagating over the encrypted post-quantum v2 transport across a dual-stack (IPv4 + IPv6) seed. Listed on miningpoolstats.
Software: v0.1.0 — node, CLI, Qt GUI wallet, offline tools, and a standalone multi-threaded CPU miner (FULL 1.5 GiB dataset for speed, -light for low-RAM).
Mainnet: genesis dated 03 Jan 2027 (headline: "The Times 03/Jan/2009 Chancellor on brink of second bailout for banks").

Roadmap

[Done] Phase 1 — Foundation. PQ consensus (ML-DSA-44 signatures + ML-KEM-768 encrypted P2P), xcrypt CPU PoW, SHA-3, full node with HTLC-capable Script (CLTV/CSV timelocks + SHA3 hashlocks + spendable post-quantum multisig/HTLC), HD wallet, Qt GUI, v0.1.0 (Windows + Linux).
[In progress] Phase 2 — Public testnet. Live testnet, dual-stack seed nodes, DNS seeds, macOS builds, block explorer.
[Planned] Phase 3 — Mobile full node. A native Qt 6 / QML, C++ node + wallet for Android — a real validating node (and xcrypt mining) on your phone, not a custodial thin client.
[Planned] Phase 4 — Mainnet launch. Genesis 03 Jan 2027, mainnet seed infrastructure.
[Planned] Phase 5 — Ecosystem. Lightning & atomic swaps (Script primitives already in consensus; channel/swap layer remaining), exchange & explorer integrations, hardware-wallet support.

Downloads — github.com/KristianPilatovich/flowcoin/releases (Windows installer + portable, Linux x86-64 tarball; node + CLI + Qt GUI + tools + CPU miner)

Mine it (testnet, CPU only)

Code:

flowcoind -testnet -server=1
flowcoin-cli -testnet createwallet miner
flowcoin-cli -testnet getnewaddress
flowcoin-miner -testnet -address=<tf1...>

Your node finds the network automatically via the DNS seed. xcrypt is built so a CPU is the most efficient miner — GPUs/ASICs get no meaningful edge.

Why post-quantum now?

A cryptographically-relevant quantum computer breaks every coin built on elliptic-curve cryptography — including Bitcoin — by recovering private keys from exposed public keys, and can retroactively decrypt P2P traffic captured today. Migrating a live, multi-trillion-dollar chain after the fact is extremely hard. FlowCoin is post-quantum from genesis — signatures and network encryption alike — so there is nothing to migrate.

Official links

Source & releases: github.com/KristianPilatovich/flowcoin
Telegram: t.me/flowcoin_main
Discord: discord.gg/PKRGRuzkh
Discussion: GitHub Discussions

Beware of impersonators: these are the only official channels, and the team will never DM you first or ask for your keys/seed. FlowCoin is pre-release, experimental consensus software — testnet has no value, mainnet genesis is dated 2027. Run it at your own risk.