b3chain

We're building a conservative Proof-of-Work L1 in the spirit of Bitcoin Core. Work has started; nothing is live.

Status: early development Ticker: B3C Focus: minimal PoW L1 Approach: conservative by design

Only this domain is official for b3chain / B3C. Anything else isn't us.

Notice: Nothing is launched. No mainnet, no token, no airdrop, no listing.

What this is

b3chain is an attempt at a minimal PoW chain that keeps Bitcoin's system model. No smart contracts, no new token economics — just the chain.

What we're not doing

  • Token sale or fundraiser
  • Airdrop
  • Smart-contract platform
  • Any promise on launch date or timeline
  • Investment advice

Working hypothesis (non-consensus)

Below is where we're heading so far. Nothing is frozen; this isn't a spec.

Base
Bitcoin Core fork
Model
UTXO + Proof-of-Work
PoW goal
Incompatible with Bitcoin SHA-256 ASICs
PoW candidate
double BLAKE3-256 (subject to review)
Culture
minimal change, long-term stability
PoW(header) = BLAKE3_256(BLAKE3_256(header))

We're not claiming permanent ASIC resistance.

Testing & verification

We publish test scripts, PoW reference verifiers, and a structured Phase 11 self-audit so anyone can independently reproduce our results. If it's not reproducible from our published tools, it isn't b3chain.

Open the testing & verification hub →

Public testnet

The B3Chain testnet is live. Anyone can run b3chaind -chain=test, request free test coins from the faucet, and watch the chain in the explorer. Test B3C has no monetary value — this is the soak network before mainnet launch.

Open the testnet page →

Identity and impersonation

The name b3chain and ticker B3C mean this project. Anything else is either us elsewhere or someone else — treat it with caution.

Only what's linked from this domain is official. No other assets, tokens, or networks using b3chain/B3C are ours unless we say so here.