B2 Network is an Ethereum-style chain where gas is paid in BTC. Your address starts with 0x.
The project has changed direction since it launched. It started as a Bitcoin layer 2 and now presents itself as settlement infrastructure for artificial intelligence, so older descriptions of it will not match what you find.
Its most distinctive holding for tax purposes is a token representing mining hashpower, whose balance grows on its own.
What you get out of the box
Pick your import method.
On B2 Network
- Open your wallet and copy your address. It starts with 0x.
On Kryptos
- Go to Kryptos.io and sign up with your Google account.
- From the menu, click Integrations.
- Click Add Integration and search for B2 Network.
- Click the B2 Network icon, then choose Import using Address.
- Give the wallet a name, paste your address, and click Import Your Transactions.
Good to know
- Gas is paid in BTC rather than in the B2 token.
- The wrapped token on this chain represents the network's own gas asset, not Ethereum's wrapped bitcoin, despite a similar name.
- Mining receipts compound automatically, so income arrives with no transaction behind it.
Income that arrives without a transaction
B2's mining receipt is the most easily missed income source on the chain, because it never produces a payment.
The token represents a share of mining hashpower. As it earns, the earnings are converted back into more of the same token and added to your balance automatically. Nothing is claimed, nothing is paid out, and no transaction records the increase. Your holding just gets bigger.
That is the same shape as several other things in crypto that catch people out, and the same conclusion applies: in most countries the value was received before it was reinvested, so it is income even though it never touched a spendable balance. The fact that the reinvestment happened automatically does not make it less of a receipt.
Reconstructing it by hand is impractical because there are no events to list, only a balance that changes. It has to be read off the chain. For how compounding income is treated where you file, see the USA crypto tax guide or the UK crypto tax guide.
A token whose name means something else here
This one is small, easy to miss, and it corrupts a price history.
Networks built the way B2 is reserve a standard address for the wrapped version of whatever their gas token happens to be. On most such chains the gas token is ETH, so that address holds wrapped ETH. On B2 the gas token is BTC, so the same address holds a wrapped bitcoin.
It therefore carries a name that also belongs to a well-known Ethereum token, and they are not the same thing. One is this chain's own gas asset in wrapped form; the other is a separate token on a different network with its own issuer and its own history.
A tool matching by name alone will attach the wrong price series to your holding. The amounts are usually small, and the error is silent, which is the combination that makes these worth flagging.
Manage your B² portfolio with Kryptos.
Holding a mining receipt that grows
Earnings are converted back into the receipt automatically and added to your balance, so the position compounds without any claim transaction.
Borrowing against collateral
Minting the network's stablecoin against bitcoin collateral is a loan rather than a sale, but a liquidation is a forced disposal.
Recording a distribution that vested in stages
One tranche arrived in full at launch and another unlocked gradually over months, so the same asset arrived on two schedules.
Audit-ready, automatically.
Once your wallets and exchanges are connected, generating a tax report takes a single click. Open Reports from the menu, choose your jurisdiction, and download.
Compounding mining receipts are a stream of income
Earnings are converted and added to your balance automatically. That is a continuous series of small receipts rather than one gain, and none of them has a claim transaction to point at.
Your distribution date depends on when you registered
People who registered before the launch received tokens at a fixed time; those who registered afterwards received theirs within a day of registering. So the income date varies by user rather than being one date for everyone.
The two tranches vested differently
One released a small fraction at launch and the rest over several months. The other released everything at once. Holding both means one asset arriving on two schedules.
A similarly named token is not the one you think
The wrapped token here sits at the address networks of this kind reserve for their own wrapped gas asset. It represents this chain's BTC, not Ethereum's wrapped bitcoin. Matching by ticker alone would attach the wrong price history.
Read-only by design.
- Kryptos only ever needs your public wallet address
- A public address is read-only. It can't move or spend anything
- We never ask for your recovery phrase or private key
- Remove a wallet whenever you like, and its data goes with it
If something doesn't sync.
That is the compounding. Earnings are converted back into the receipt and added automatically rather than paid out.
The wrapped token on this chain is this network's own gas asset, not the Ethereum token of a similar name. They are different assets.
The project repositioned from Bitcoin scaling to artificial intelligence settlement, so material written before that describes something different.
Still stuck? Email support@kryptos.io or open live chat from the app.