[ANN] FlowCoin — Mining = Training AI

FlowCoin
AI that belongs to no one

Website | GitHub | Whitepaper | Telegram

What is FlowCoin?

A blockchain where mining trains a neural network. Instead of grinding SHA-256 hashes that produce nothing, FlowCoin miners run training steps on a shared AI model. Each training step changes the model weights, which changes the block hash. If hash < target — block found. Identical to Bitcoin's math, but every computation is useful.

The model gets smarter every 10 minutes. Anyone can download it and run it locally. No API keys. No subscription. No censorship. No company controls it.

The Problem

Every major AI (ChatGPT, Claude, Gemini) is controlled by a corporation. They decide what the AI can say, who can use it, and how much it costs. Governments are pushing federal AI laws to centralize control further. If OpenAI shuts down tomorrow, billions lose access.

Bitcoin solved this for money. FlowCoin solves it for intelligence.

How Proof-of-Training Works

Code:

Bitcoin:    SHA256(header + nonce) < target      → grind nonces (useless)
FlowCoin:  Keccak256d(header + delta_hash) < target → training steps (useful)

Each training step changes model weights → changes delta_hash
→ changes block hash → probabilistic, identical to Bitcoin
P(success) = target / 2^256
Difficulty adjusts every 2016 blocks — same algorithm as Bitcoin

Every "nonce attempt" is a real SGD training step. The energy goes into making AI smarter, not into heat.

Specifications

Algorithm	Proof-of-Training (Keccak-256d)
Block time	~10 minutes
Block reward	50 FLOW
Max supply	21,000,000 FLOW
Signatures	Ed25519 (ed25519-donna)
Addresses	fl1q... (bech32)
Smallest unit	1 haruki = 0.00000001 FLOW
HD derivation	SLIP-0010 (hardened only)
Default port	9555
Codebase	885,000+ lines C/C++

Model Architecture

Transformer with extreme Mixture-of-Experts:
- Genesis: d=512, 8 layers, 8 heads, 1024 experts
- Grows to: d=1024, 24 layers, 65536 experts (500B+ params)
- Inference: only 2 experts active per token = fast on any device
- Format: GGUF (llama.cpp compatible)
- Runs on phone at 200+ tok/s with no internet

Components

• flowcoind — Full node. Syncs blocks, validates PoT, P2P network.
• flowcoin-cli — Wallet. Create fl1q... addresses, send/receive FLOW.
• flowminer — GPU miner. Trains transformer at 128K tok/s on RTX 5080. ncurses TUI.
• llama-server — AI inference. Chat with the trained model locally.

Quick Start

Code:

# Build
cmake -B build -DBUILD_GUI=OFF -DBUILD_TESTS=OFF -DENABLE_IPC=OFF
cmake --build build -j$(nproc)

# Run node
./build/bin/flowcoind -daemon
./build/bin/flowcoin-cli createwallet "main"
./build/bin/flowcoin-cli -rpcwallet=main getnewaddress

# Mine
cd miner && cmake -B build -DGGML_CUDA=ON && cmake --build build -j$(nproc)
./build/flowminer --dataset ~/data/ --gpu 0

# Inference
cd inference/llama.cpp
cmake -B build -DLLAMA_BUILD_SERVER=ON && cmake --build build --target llama-server
./build/bin/llama-server -m ~/.flowcoin/model.gguf --port 8080

Network Status

• Seed node: seed.flowcoin.org:9555
• Current height: 6 blocks
• Genesis: March 21, 2026
• Coinbase message: "White House calls for federal AI law to preempt states 21/Mar/2026 — FlowCoin: AI that no government controls"

Links

• Website: https://flowcoin.org
• GitHub: https://github.com/haruki-tanaka-tech/flowcoin
• Whitepaper: https://flowcoin.org/flowcoin-whitepaper.pdf
• Telegram: https://t.me/flow_coin_main

Why Now

March 2026: The White House is pushing federal AI legislation to preempt state regulations. Major AI providers have signed military contracts, added advertising, and increased censorship. Over 2.5 million users left ChatGPT in a single quarter.

Centralized AI is the new centralized banking. FlowCoin is the Bitcoin of intelligence.

The model gets smarter every ten minutes. Forever.

— Haruki Tanaka, March 2026