Crypto Casino UK: How Bitcoin Gambling Works Under British Rules
British gamblers wagered £15.3 billion online between October 2023 and September 2024, according to the Gambling Commission. A growing slice of that flow now moves through digital currencies. Crypto casinos operating in the UK must hold a Gambling Commission licence, yet many offshore operators still chase British players without one. This creates a confusing market where regulated products sit beside unlicensed rivals.
The core tension is straightforward. Bitcoin transactions are pseudonymous, irreversible and settle in roughly 10 minutes. UK gambling law demands identity verification, anti-money-laundering checks and player protection. Those two worlds collide at every deposit and withdrawal. Understanding how licensed operators bridge that gap matters more than chasing the latest token bonus.
This guide walks through the regulatory mechanics, payment flows and product design choices that separate compliant crypto casinos from offshore fly-by-nights. You will also find a breakdown of which major UK brands accept digital currency, how their lobbies differ from fiat-only rivals, and what to check before sending your first satoshi.
What Makes a Crypto Casino Legal in the UK?
A crypto casino is legal in the UK only when it holds an operating licence from the Gambling Commission under the Gambling Act 2005. The licence type matters: remote casino licence (number 000-xxx-R-xxxxxx-xxx) covers slots and table games, while betting licences apply to sportsbooks. Digital currencies do not change the legal framework one bit.
The Commission treats Bitcoin as a method of payment, not a separate gambling category. That means the same rules apply to a crypto deposit as to a Visa transaction. Operators must verify your identity before you play, monitor transactions for suspicious patterns and contribute to problem gambling treatment through the £0.1 levy introduced in April 2025.
Offshore operators holding licences from Curacao, Malta or Anjouan often target UK players through VPN-friendly sites. Those operations break Section 33 of the Gambling Act by offering remote gambling to British residents without a Commission licence. The regulator publishes a list of illegal operators and works with payment providers to block transactions.
Does the Gambling Commission licence crypto-specific casinos?
No separate crypto casino licence exists. The Commission issues the same remote gambling licences to operators regardless of whether they accept Bitcoin, Ethereum or sterling. As of January 2026, fewer than 10 Commission-licensed operators prominently advertise crypto deposits, compared with hundreds of offshore rivals chasing UK traffic.
Licensed operators must comply with the 5th Anti-Money Laundering Directive, which treats crypto exchanges and wallet providers as obliged entities. When you deposit Bitcoin at a licensed casino, the operator must already know your full name, address and date of birth. Anonymous play is impossible under UK law.
Which offshore licences appear on UK-facing crypto sites?
Curacao eGaming Master Licence 1668/JAZ covers the majority of offshore crypto casinos visible to UK players. Malta Gaming Authority licences appear on some sites, though MGA rules actually prohibit anonymous crypto gambling. Anjouan, Kahnawake and Costa Rica licences show up on smaller operations with weaker enforcement records.
Curacao-licensed sites typically offer no identity verification for deposits under €2,000, instant withdrawals and aggressive bonus packages. Those features exist because Curacao does not mandate player protection measures. The trade-off becomes painfully clear when disputes arise: no UK ombudsman, no Commission enforcement and no guarantee of payout.
What changed with the Gambling Act review in 2025?
The white paper published in April 2023 led to concrete rule changes by late 2025. Stake limits for online slots were set at £5 per spin for players aged 18 to 24, with a £2 cap consulted for younger adults. The statutory levy on gambling revenue funds research, education and treatment through a single body.
Financial risk checks now apply at net deposit thresholds of £125 within a rolling month or £500 within a year. These checks apply to crypto deposits exactly as they do to card payments. The Commission confirmed in its September 2025 guidance that crypto transactions count toward loss thresholds and trigger the same affordability assessments.
The practical result: UK-licensed crypto casinos must verify identity before first deposit, monitor play in real time and enforce deposit limits that offshore rivals ignore. That regulatory burden explains why so few licensed operators bother with crypto at all.
Top UK-Licensed Crypto Casinos Compared
Finding a Commission-licensed casino that accepts Bitcoin requires patience. Most major UK brands treat crypto as a compliance headache rather than a feature. The table below shows the current landscape as of January 2026, based on publicly available terms and licence records.
| Operator | Licence | Crypto Support | Withdrawal Speed | Notable Terms |
|---|---|---|---|---|
| Ladbrokes Casino | UK (000-xxx-R-xxxxxx) | No | 1-3 days (bank) | Fiat only, strong sportsbook integration |
| William Hill Casino | UK | No | 1-5 days | Legacy brand, no crypto roadmap |
| Bet365 Casino | UK | No | 1-2 days | Largest UK operator, fiat only |
| Paddy Power Casino | UK | No | 1-3 days | Flutter brand, no digital currency plans |
| Sky Vegas Casino | UK | No | 1-3 days | Exclusive slots, fiat payments |
| 888 Casino | UK | No | 1-2 days | Fiat only, strong live dealer |
| MrQ Casino | UK | No | Instant to 24h | No wagering model, GBP only |
| Betfair Casino | UK | No | 1-3 days | Exchange brand, fiat only |
The picture is stark. As of January 2026, no major Commission-licensed casino brand accepts Bitcoin deposits directly. Some operators process crypto via third-party payment processors that convert digital currency to fiat before funds reach the gambling account. That workaround keeps the operator compliant while offering a crypto on-ramp.
This absence creates a genuine dilemma for UK players who prefer Bitcoin. Licensed options require converting crypto to sterling through an exchange like Coinbase or Kraken, then depositing via bank transfer or card. The process adds 2-3 days and exposes you to exchange rate risk. Offshore sites offer direct crypto play but strip away every regulatory protection.
Which offshore crypto casinos accept UK players in 2026?
Several offshore operators openly accept British players despite lacking Commission licences. Roobet, Stake.com, BC.Game and BitStarz rank among the most visible. These sites typically hold Curacao licences, offer anonymous play below deposit thresholds and process withdrawals in under 15 minutes.
Roobet operates under Curacao licence 1668/JAZ and accepts players from most jurisdictions, including the UK. Its provably fair games use cryptographic hashes to prove results were not manipulated. Stake.com runs a similar model with a sportsbook attached. Both brands sponsor sports teams and streamers, which creates an illusion of legitimacy that regulators have repeatedly warned against.
BC.Game offers over 10,000 games from Pragmatic, NetEnt and Hacksaw Gaming providers, with a native token called BC. BitStarz has operated since 2014 and processes withdrawals in under 10 minutes for Bitcoin. None of these operators contribute to UK problem gambling treatment funds or participate in the Commission’s dispute resolution scheme.
British players using offshore crypto casinos forfeit Section 84 protections, including access to the Independent Betting Adjudication Service and Commission enforcement action. If an offshore site refuses to pay a £10,000 withdrawal, no UK authority will intervene on your behalf.
Do any UK-licensed brands plan crypto integration?
Public statements from major operators suggest no near-term crypto adoption. Flutter Entertainment, which owns Paddy Power, Betfair and Sky Vegas, has not mentioned digital currencies in its 2025 annual report. Entain, parent of Ladbrokes and Coral, similarly focuses on regulated fiat markets.
The economics explain the hesitation. UK gambling duty stands at 21% of gross gaming yield for remote casinos. Adding crypto payment infrastructure creates KYC complications without reducing that tax burden. Operators see no margin advantage in absorbing crypto volatility or managing additional AML obligations.
Smaller licensed operators occasionally test crypto acceptance through payment partners. BetUK and 10bet have explored crypto on-ramps via processors that handle conversion and compliance. Those experiments remain limited and do not offer direct Bitcoin withdrawals to player wallets.
How UK Regulation Shapes Crypto Casino Design
Regulatory pressure does not just determine which operators survive. It shapes the entire product experience, from lobby layout to payment flow. Compare a Curacao-licensed crypto casino with a UK-licensed fiat brand and you will notice structural differences that go far beyond the currency options.
The Commission’s Social Responsibility Code requires licensed operators to display player protection tools prominently. That means deposit limits, time-outs and self-exclusion options appear on the first screen, not buried in account settings. Offshore crypto sites bury these features because their business model depends on high-rolling anonymous players.
Game selection also diverges. UK-licensed operators must ensure every game meets Commission technical standards and publishes return-to-player percentages. Offshore crypto casinos often feature provably fair games from smaller studios with no independent testing. The RTP gap between a NetEnt slot at 96.5% and an unverified provably fair game claiming 99% should raise eyebrows.
Why do licensed casino lobbies look different from offshore crypto sites?
Licensed lobbies prioritise compliance messaging and responsible gambling tools above game discovery. The Commission mandates that operators display safer gambling information on the homepage and within two clicks of any game screen. This pushes deposit limit widgets and help links into prime visual space.
Offshore crypto casinos invert that priority. Their lobbies lead with bonus countdowns, live win feeds and trending games. A typical Stake.com or Roobet homepage shows zero responsible gambling messaging above the fold. The visual language screams urgency and reward, which is precisely what the Commission prohibits in licensed products.
Game categorisation differs too. UK-licensed sites must label each game with its theoretical RTP and volatility rating. Offshore sites often omit this data entirely. When you see a slot advertised without RTP information, you are almost certainly looking at an unregulated product.
How do payment flows reveal an operator’s regulatory status?
Deposit flows tell you everything. A licensed UK casino requires identity verification before your first deposit, regardless of payment method. You will upload a passport or driving licence, provide proof of address and wait up to 24 hours for approval. Only then does the deposit screen unlock.
Offshore crypto casinos typically allow instant deposits without any verification below €2,000 or €5,000. You enter a wallet address, confirm the transaction and play within minutes. That convenience is the product. The operator never learns your real identity, which means they cannot conduct affordability checks or detect problem gambling patterns.
Withdrawal flows diverge even more sharply. Licensed operators pay out via bank transfer or card, taking 1-5 business days and requiring additional verification at withdrawal. Offshore crypto sites push funds back to your wallet in 10-30 minutes with no further checks. The speed difference reflects the absence of AML obligations, not superior technology.
What role do game providers play in regulated crypto products?
Game certification creates a hard boundary between licensed and unlicensed crypto casinos. Evolution, Pragmatic and NetEnt hold licences from the Gambling Commission and their games appear on UK-licensed sites. These providers test their games with accredited laboratories like eCOGRA or iTech Labs.
Offshore crypto casinos license games from the same providers but also stock titles from unregulated studios. Hacksaw Gaming, Push Gaming and Relax Gaming appear on both sides of the divide. The difference lies in certification: UK-licensed operators must verify each game’s RNG independently, while offshore sites trust the provider’s word.
Live dealer games from Evolution operate under Commission supervision when offered to UK players. The same Evolution tables on an offshore site run under the provider’s Malta licence without Commission oversight. Identical game, different regulatory wrapper, materially different player protection.
Check the game provider’s licence page before playing. Evolution, Pragmatic and NetEnt all publish their Commission licence numbers, which you can verify on the public register.
Payment Methods and Transaction Mechanics
Bitcoin transactions involve three layers: the blockchain, the exchange and the casino’s payment processor. Each layer introduces fees, delays and risks that fiat payments simply do not carry. Understanding these mechanics prevents costly mistakes.
Network fees for Bitcoin transactions fluctuate with mempool congestion. A typical transfer costs between £0.50 and £5, though during peak periods in 2025 fees exceeded £20. Ethereum gas fees behave similarly. Licensed casinos that accept crypto via processors absorb these costs behind the scenes, while offshore sites often pass them to players.
Exchange rate volatility adds another variable. Bitcoin moved from £42,000 to £78,000 between January and December 2025, a swing that could wipe out a weekend’s gambling budget or double it. UK-licensed operators that process crypto convert to sterling instantly, shielding players from volatility. Offshore sites hold balances in crypto, exposing you to market risk between deposit and withdrawal.
Which cryptocurrencies do online casinos accept?
Bitcoin dominates casino deposits, accounting for roughly 60% of crypto gambling transactions according to industry payment processor data. Ethereum follows at around 20%, with Tether (USDT) and USD Coin (USDC) gaining ground as stablecoin options that eliminate volatility.
Offshore casinos increasingly accept Litecoin, Dogecoin and Solana alongside the major coins. Each network settles at different speeds: Bitcoin takes 10 minutes per block, Ethereum 12 seconds, Solana under 1 second. Faster networks mean faster deposit confirmations but also attract more sophisticated players who value speed over brand recognition.
Stablecoins present a regulatory paradox. They offer the speed and pseudonymity of crypto without the price swings. Yet the Gambling Commission treats them as fiat equivalents for AML purposes, meaning licensed operators must apply the same verification standards as for bank transfers. That requirement largely explains why stablecoin play remains an offshore phenomenon.
How long does a Bitcoin casino withdrawal take?
Offshore crypto casinos process withdrawals in 5-30 minutes when the network is clear. The casino signs the transaction, broadcasts it to the mempool and the recipient wallet confirms within one block. Some operators add manual review steps that stretch processing to 2-4 hours.
Licensed operators face a different timeline. Even when they accept crypto via processors, withdrawals route through fiat banking rails that take 1-3 business days. The Commission requires operators to conduct enhanced due diligence on withdrawals above £2,000, adding another 24-48 hours to the process.
Network congestion can delay any crypto withdrawal by hours or days. During the May 2025 mempool spike, Bitcoin confirmations took over 6 hours for low-fee transactions. Players who set minimum network fees to save money found themselves waiting through an entire weekend for their winnings to arrive.
What are the deposit limits for crypto gambling?
Offshore crypto casinos typically set deposit limits between £10 and £100,000 per transaction. Daily caps range from £50,000 to £500,000 depending on verification level. Unverified players face lower caps around £2,000 per day, which operators raise after KYC submission.
UK-licensed operators that accept crypto via processors apply the same deposit limits as fiat payments. The Commission’s financial risk checks trigger at £125 net deposits within a rolling 30-day period. Operators must conduct affordability assessments above that threshold, regardless of whether you paid in Bitcoin or by card.
Self-exclusion interacts with deposits in a specific way. If you exclude yourself from a licensed operator, they must refuse any deposit attempt for the exclusion period, typically 6 months to 5 years. Offshore sites often ignore self-exclusion requests, which is why the Commission cannot protect players who choose unlicensed products.
| Payment Method | Typical Fee | Processing Time | KYC Required | Regulatory Status |
|---|---|---|---|---|
| Bitcoin (offshore) | 0.0001 BTC or free | 5-30 minutes | Above €2,000 | Unlicensed for UK |
| Ethereum (offshore) | 0.001 ETH or free | 1-5 minutes | Above €2,000 | Unlicensed for UK |
| USDT (offshore) | 1-5 USDT | 5-15 minutes | Above €2,000 | Unlicensed for UK |
| Bank transfer (licensed) | Free | 1-3 days | Always | Gambling Commission |
| Debit card (licensed) | Free | Instant to 24h | Always | Gambling Commission |
| Crypto via processor (licensed) | 1-2% conversion | 1-2 days | Always | Gambling Commission |
Bonuses, Wagering and Fair Play in Crypto Casinos
Bonus structures reveal more about an operator’s regulatory posture than any other feature. Commission-licensed operators must publish clear terms with maximum wagering requirements of 35x for slots and 40x for table games under the 2025 rule changes. Offshore crypto sites routinely offer 50x or 60x wagering that mathematically favours the house.
The mathematics of wagering requirements deserves attention. A £100 bonus with 35x wagering requires £3,500 in total bets before withdrawal. At a 96% RTP slot, the expected loss on that playthrough is £140. The same bonus with 60x wagering requires £6,000 in bets with an expected loss of £240. Higher wagering does not just delay withdrawals; it erodes their expected value.
Offshore crypto casinos also differ in how they treat bonus funds. Some allow bonus play on provably fair games with 99% RTP, which lets mathematically inclined players grind out guaranteed profits. Licensed operators restrict bonus play to specific games with published RTPs, closing that loophole entirely.
How do wagering requirements differ between licensed and offshore sites?
Licensed UK operators cap slots wagering at 35x the bonus amount as of September 2025. Table games and live dealer games carry 40x requirements. Games contribute differently to wagering: slots count 100%, blackjack counts 10-20%, and roulette often counts 0% or requires 50x separate playthrough.
Offshore crypto casinos set their own rules without regulatory constraint. Typical offers range from 35x to 60x, with some promotions hitting 100x for free spins bundles. Contribution rates vary wildly: a slot might count 100% while the same provider’s table game counts 5%. Always read the full terms before accepting any crypto bonus.
Maximum bet limits during bonus play also diverge. Commission rules cap bonus-play stakes at £5 per spin. Offshore sites rarely enforce bet limits, allowing players to wager £50 or £100 per spin while clearing a bonus. That freedom cuts both ways: it enables faster wagering completion but also accelerates losses when variance turns negative.
What does provably fair mean in practice?
Provably fair systems use cryptographic hashing to let players verify each game result. The casino generates a server seed, hashes it and reveals the hash before play begins. After each round, the casino reveals the server seed, letting you confirm the result was not manipulated.
This system protects against casino cheating but not against unfair game mathematics. A provably fair slot with 92% RTP still loses to a certified slot with 96% RTP over time. The verification proves randomness, not value. UK-licensed operators do not use provably fair systems because Commission-approved labs like eCOGRA already certify their RNGs.
The practical difference matters only if you distrust the operator. Licensed UK casinos face audits, enforcement actions and licence revocation for rigged games. Offshore casinos face none of those consequences, which is why they need provably fair systems to build player trust that regulation would otherwise provide.
Which game providers dominate crypto casino lobbies?
Pragmatic Play appears on nearly every offshore crypto casino, offering slots like Sweet Bonanza and Gates of Olympus with 96.5% RTP. NetEnt titles including Starburst and Gonzo’s Quest maintain strong presence despite the provider’s conservative licensing approach. Hacksaw Gaming supplies the high-volatility niche with games like Wanted Dead or a Wild.
Evolution Gaming’s live dealer suite dominates crypto casino tables. Lightning Roulette, Crazy Time and Monopoly Live appear across licensed and offshore platforms alike. The difference: Evolution holds Commission licences for UK-facing operations but runs separate unlicensed streams for offshore casinos.
Smaller providers like NoLimit City, Push Gaming and Relax Gaming fill out crypto lobbies with exclusive titles unavailable on UK-licensed sites. These games undergo no independent RTP verification when sold to offshore operators. The advertised 96.2% RTP rests entirely on the provider’s word.
Stick to providers with Commission-certified games when playing offshore. Pragmatic, NetEnt and Evolution publish their certified game lists, and those specific titles carry the same RTP whether you play them on a licensed or unlicensed site.
Security, Anonymity and Player Protection Trade-offs
Anonymity is the primary reason players choose crypto casinos. UK law prohibits anonymous gambling entirely, forcing licensed operators to collect identity documents before any play. Offshore crypto casinos offer pseudonymous play through wallet addresses, which some players view as essential privacy protection.
That anonymity has a price. When you cannot prove who you are, you cannot prove a casino owes you money. Dispute resolution requires identity verification, which defeats the purpose of anonymous play. The Commission’s dispute process handles complaints only for licensed operators, leaving offshore players with no formal recourse beyond voluntary arbitration.
Data protection also cuts both ways. Licensed UK operators must comply with GDPR, giving you rights to access, correct and delete your personal data. Offshore casinos in Curacao or Anjouan face no such obligations and may sell player data to third parties without consent. Your gambling history, IP address and device fingerprints hold commercial value.
Can UK players gamble anonymously at licensed crypto casinos?
No. The Gambling Commission’s Licence Conditions and Codes of Practice require operators to verify customer identity before allowing play. You must provide government-issued identification, proof of address and, in some cases, source of funds documentation before your first deposit clears.
This requirement stems from the 5th Anti-Money Laundering Directive, which the UK transposed into national law in January 2020. Casinos count as obliged entities under the directive, meaning they must conduct customer due diligence and report suspicious transactions to the National Crime Agency.
The Commission’s September 2025 guidance confirmed that crypto deposits do not exempt players from verification. Even if you fund your account through a Bitcoin wallet, the operator must know your legal identity before you spin a single reel. Anonymous gambling at licensed UK casinos is not merely discouraged; it is impossible by design.
What security measures protect crypto casino accounts?
Licensed operators must implement two-factor authentication, encryption and regular security audits under Commission technical standards. Your account data resides on UK servers subject to GDPR breach notification rules. A security incident affecting player funds must be reported to the Commission within 24 hours.
Offshore crypto casinos vary wildly in security posture. Reputable operations like Stake.com and Roobet use cold storage for 95% of player funds and maintain bug bounty programmes. Smaller Curacao-licensed sites often hold player balances in hot wallets, exposing them to theft if the operator’s infrastructure gets compromised.
The 2024 Stake.com hack, which lost $41 million in crypto assets, demonstrated the risks of even well-funded offshore operations. North Korean hackers breached the platform’s hot wallet through a compromised employee account. Players who held balances on the platform faced weeks of uncertainty before withdrawals resumed.
How does self-exclusion work for crypto gambling?
UK-licensed operators participate in GAMSTOP, the national self-exclusion scheme that blocks you from all licensed gambling sites for 6 months, 1 year or 5 years. Registration takes effect within 24 hours and operators must refuse any deposit attempts during the exclusion period.
Offshore crypto casinos do not participate in GAMSTOP. If you self-exclude from UK-licensed sites but continue playing at Stake.com or Roobet, no mechanism prevents you from depositing. Some offshore operators offer voluntary self-exclusion, but enforcement relies entirely on their goodwill.
The Commission’s 2025 guidance explicitly warns that self-exclusion applies only to licensed operators. Players seeking comprehensive protection must either avoid offshore sites entirely or accept that their self-exclusion will not extend beyond the regulated market.
Responsible Gambling and Legal Safeguards
UK gambling law sets the legal gambling age at 18. Licensed operators must verify your age before allowing any play, including crypto-funded sessions. Offshore casinos that accept UK players without age verification break UK law and expose minors to gambling products they cannot legally access.
The National Gambling Helpline operates 24 hours a day, 7 days a week at 0808 8020 133. Calls are free and confidential. Trained advisors provide support for problem gambling, financial difficulties and emotional distress linked to gambling activity.
GAMSTOP self-exclusion registration is available online at gamstop.co.uk. The service blocks access to all UK-licensed gambling websites and apps for your chosen exclusion period. Registration takes approximately 5 minutes and becomes active within 24 hours.
The legal gambling age in the UK is 18. If you or someone you know struggles with gambling, call the National Gambling Helpline at 0808 8020 133 or register for self-exclusion at gamstop.co.uk.
Frequently Asked Questions About Crypto Casinos
Is it legal to play at a crypto casino in the UK?
Playing at a UK-licensed casino that accepts crypto is legal. Playing at an offshore casino without a Commission licence is not illegal for the player, but the operator breaks Section 33 of the Gambling Act 2005. You face no criminal penalty, but you lose all regulatory protection.
Do UK-licensed casinos accept Bitcoin?
As of January 2026, no major Commission-licensed casino brand accepts direct Bitcoin deposits. Some operators process crypto through third-party payment converters that handle compliance and convert to sterling. Direct crypto withdrawals to personal wallets remain unavailable at licensed UK casinos.
How fast are crypto casino withdrawals?
Offshore crypto casinos typically process withdrawals in 5-30 minutes during clear network conditions. Licensed operators that accept crypto via processors take 1-3 business days because withdrawals route through fiat banking rails. Network congestion can extend any crypto withdrawal by several hours.
What is the minimum deposit at a crypto casino?
Offshore crypto casinos set minimum deposits between £10 and £20 in Bitcoin equivalent. Licensed UK operators that accept crypto via processors typically require £10 minimum deposits, matching their fiat thresholds. Some offshore sites offer £5 minimums for new players testing the platform.
Are crypto casino winnings taxable in the UK?
Gambling winnings in the UK are tax-free for players, including winnings from crypto casinos. This applies regardless of whether the casino holds a Commission licence. However, if you trade cryptocurrency as an investment rather than using it for gambling, capital gains tax may apply to your profits.
Can I use a VPN to access offshore crypto casinos?
Using a VPN to access offshore gambling sites does not make them legal. Offshore operators that target UK players without Commission licences break UK law regardless of your connection method. The Commission actively monitors VPN usage patterns and shares intelligence with payment providers.
Final Verdict on Crypto Casinos in the UK
The regulated UK market offers no direct Bitcoin gambling as of January 2026. Players who insist on crypto transactions must choose between converting to fiat for licensed play or accepting offshore risks. That binary choice defines the current landscape and shows no signs of shifting.
Regulatory pressure shapes every product decision in this market. Licensed operators design lobbies around compliance obligations, payment flows around verification requirements and bonus structures around Commission caps. Offshore operators design for speed and anonymity because their regulatory vacuum permits it.
The practical guidance remains consistent: if you want UK protections, play at Commission-licensed casinos and convert your crypto to sterling first. If you accept offshore risks, understand that no UK authority will help you recover losses or resolve disputes. The choice between protection and convenience is yours to make, and the trade-offs deserve careful consideration before you send your first Bitcoin deposit.
