[ANN] Bitcoin Cash II (BCH2) — SHA-256 PoW | 32MB Blocks | ASERT

Bitcoin Cash II (BCH2)
A Return to Decentralized Mining Through Fair Distribution

What is BCH2?

BCH2 (Bitcoin Cash II) is a SHA-256 proof-of-work cryptocurrency that forks from BC2 (BitcoinII) at block height 53,200, upgrading to full Bitcoin Cash consensus rules. Every BC2 holder at the fork block receives an equal amount of BCH2 at a 1:1 ratio — no registration, no claims process, no KYC.

No premine. No dev fee. No ICO. 100% of new coins go to miners.

Estimated mainnet launch: March 7–9, 2026

Why BC2?

BC2 (BitcoinII) deserves credit as a well-executed Bitcoin implementation. It launched in 2025 with a clean genesis block, fair distribution, and a working network that has produced over 53,000 blocks. BC2 built a real community, got listed on multiple exchanges, and proved itself as a functioning SHA-256 chain. That's not easy to do.

BCH2 builds on that foundation. Rather than starting from scratch, I chose to fork BC2 because it had something rare in this space — a genuinely fair launch with no premine and an active mining community. By combining BC2's honest distribution with Bitcoin Cash's battle-tested protocol upgrades (ASERT DAA, 32MB blocks, Schnorr signatures, native introspection, DSProof, ABLA), BCH2 gets the best of both worlds.

BC2 continues as its own chain. BCH2 is additive — it doesn't take anything from BC2. If you hold BC2, you now hold coins on two chains.

How to Get BCH2

Every BC2 coin you hold at block 53,200 = 1 BCH2. Free.

If you're interested in BCH2, the simplest path is to acquire BC2 before the fork. BC2 is currently trading on several exchanges. Any BC2 in your wallet at fork height 53,200 automatically becomes an equal BCH2 balance — you end up with coins on both chains.

This is the same model Bitcoin Cash used in 2017. People who held BTC before the fork received BCH for free. The same opportunity exists now with BC2 → BCH2.

BC2 is available on: CoinEx, NonKYC.io, and other exchanges. Check CoinMarketCap or CoinGecko for current listings.

⚠️ Important: Get Your BC2 Off Exchanges Before the Fork

If your BC2 is sitting on an exchange, you may not automatically receive your BCH2. Exchanges control the private keys, and it's up to each exchange whether they support the fork and credit BCH2 to customers.

I have notified all exchanges currently holding BC2 about the fork and provided full technical support for integration. However, there is no guarantee every exchange will act on this.

You have two options:

Option 1 (Recommended): Withdraw to your own wallet
Move your BC2 to a wallet where you control the private keys before block 53,200. After the fork, import those same keys into a BCH2 wallet and your BCH2 will be there. This is the safest way to guarantee you receive your BCH2.

Option 2: Ask your exchange to support BCH2
Contact your exchange's support team and request they credit BCH2 to customers who held BC2 at the fork block. The more customers who ask, the more likely they are to act. Point them to https://bch2.org for technical details.

Replay protection (SIGHASH_FORKID) is in place — your BC2 and BCH2 are completely independent. Spending on one chain does not affect the other.

Specifications

Algorithm	SHA-256 Proof of Work
Block Size	32 MB
Block Time	10 minutes (target)
Supply Cap	21,000,000
Block Reward	50 BCH2
Halving	Every 210,000 blocks
Difficulty Adj.	ASERT (1-hour half-life at launch, automatic transition to 2-day at block 92,736)
Fork Height	53,200 (last BC2 block)
First BCH2 Block	53,201
Distribution	1:1 fork from BC2 (~2,660,000 coins at fork)
Premine	None
Dev Fee	None
Address Format	CashAddr (prefix: bitcoincashii:)
Replay Protection	SIGHASH_FORKID
Network Magic	0xb2c2b2c2
P2P Port	8339
RPC Port	8342

Key Features

ASERT Difficulty Adjustment
Per-block difficulty targeting from Bitcoin Cash (BCHN v29). Launches with a 1-hour half-life for attack resistance on a new chain, then automatically transitions to the standard 2-day half-life at block 92,736 (~9 months). No hard fork needed — it's baked into consensus from day one.

DSProof (Double-Spend Protection)
Real-time detection of double-spend attempts on unconfirmed transactions. When a conflicting transaction is detected, a DSProof message is broadcast network-wide within seconds. This makes zero-confirmation payments significantly safer for merchants.

SegWit UTXO Migration
BC2 has SegWit UTXOs in its chain history. BCH2 implements witness-via-scriptSig so existing P2WPKH, P2WSH, P2TR (key-path), and P2SH-wrapped outputs can all be spent post-fork. Signature data moves from the witness field to scriptSig. Same cryptographic security, full replay protection. No coins left behind.

Note: Taproot script-path spending is not supported — only key-path. If you have complex Taproot scripts on BC2, migrate before the fork.

Full BCH Protocol Stack
All Bitcoin Cash upgrades from 2017 through 2025 activate at block 53,201:

Schnorr signatures
OP_CHECKDATASIG
Canonical transaction ordering (CTOR)
Native introspection opcodes
64-bit integers and BigInt
ABLA (Adaptive Blocksize Limit Algorithm)
Covenants via introspection

Anti-Gaming Protection
The wallet implements balance origin verification to prevent double-claiming across address types (SegWit → Legacy). Fork distribution balances are validated against the BC2 chain state.

Mining

BCH2 uses SHA-256. Any Bitcoin or BCH ASIC works.

At launch difficulty, home miners and small operations can realistically find blocks. Lottery miners (Bitaxe, Nerdminer) have meaningful odds.

Pool Mining:

Code:

Stratum: stratum+tcp://pool.bch2.org:3333
Worker: your_bch2_address
Password: x

Solo Mining:
Point your ASIC at your own full node's RPC port. Full 50 BCH2 block reward.

Claiming Your BCH2

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Download BCH2 wallet from https://bch2.org/download
Import your BC2 private keys (WIF format)
Your BCH2 balance matches your BC2 balance at block 53,200

The wallet scans all derivation paths automatically — Legacy (BIP44), Native SegWit (BIP84), and Wrapped SegWit (BIP49). If you had BC2 in any address type, the wallet will find it.

Links

Website: https://bch2.org
Block Explorer: https://explorer.bch2.org
Mining Pool: https://pool.bch2.org
Whitepaper: https://bch2.org/whitepaper.html
Source Code: https://github.com/BitcoincashII (public at mainnet launch)

Roadmap

~~Fork specification finalized~~
~~Full node software built (BitcoinII Core v27.1 + BCH consensus)~~
~~Block explorer live~~
~~Mining pool live (Forge Pool — 5 global regions)~~
~~Global seed nodes deployed (US, EU, Asia)~~
~~Exchange notifications sent~~
Mainnet launch — March 7–9, 2026
Source code published
CoinMarketCap / CoinGecko submissions
Exchange listings
Electron Cash-based wallets (desktop, mobile)
ASERT half-life transition to 2-day (block 92,736, ~Dec 2026)

TL;DR

BCH2 forks from BC2 at block 53,200 (~March 7–9, 2026)
1 BC2 = 1 BCH2, free, automatic
If you want BCH2, buy BC2 before the fork
Get your BC2 into your own wallet — don't rely on exchanges
No premine, no dev fee, 100% to miners
SHA-256, 32MB blocks, ASERT DAA, full BCH protocol
Home mining is back

BCH2 — Peer-to-peer electronic cash, accessible to everyone.