Three categories of Bitcoin wallet exist. All of them work with on-chain Bitcoin competition — and one condition applies equally to every category. The wallet type does not matter. The key ownership does. Hardware, software, or mobile: what on-chain competition requires is a Bitcoin address generated by a wallet whose private key belongs to you, not to a platform. The competition's leaderboard ranks Bitcoin addresses by total BTC committed. The mechanism behind the address — what device generated it, what software manages it, where the key is stored — is invisible to the blockchain and irrelevant to competitive position.
The category is less important than the custody model. Hardware, software, or mobile — what on-chain competition needs is a private key that belongs to you and an address you can sign from without asking anyone's permission. Any wallet that satisfies self-custody works. Custodial accounts do not own Bitcoin addresses — they manage balance entries in private databases. The blockchain requires the first; it cannot interact with the second.
Bitok Arena's analysis of participant wallet setups across 90 days of competition rounds found hardware, software, desktop, and mobile wallets all represented in winning positions. No wallet type correlates with competitive success or failure — because the competition is indifferent to the wallet architecture. The only disqualifying condition is custodial access: an address that belongs to an exchange or hosted wallet will not deliver prizes to the individual participant, for reasons described later in this article.
Hardware Wallets — Cold Storage That Competes
Hardware wallets store the private key on a dedicated physical device, isolated from any internet-connected operating system. Ledger Nano S Plus and Nano X, Trezor Safe 3 and Safe 5, SafePal S1 Pro, BitBox02 — all generate real bc1q addresses and all work as on-chain competition entry points. The participant connects the device, confirms the transaction on the physical screen, and the BTC moves to the competition address. The private key never leaves the hardware during any part of that process. For competitors who enter rounds regularly and hold meaningful amounts in their competition address, hardware is the appropriate security level.
Bitok Arena reviewed the operational properties of hardware wallet use for daily on-chain competition participation across four major hardware wallet models.
Entry process — identical to any other Bitcoin send: open companion app (Ledger Live, Trezor Suite), initiate send to competition address, confirm on hardware device screen, transaction broadcasts; total process 1–3 minutes.
Prize receipt — prizes are incoming Bitcoin transactions; they arrive at the hardware wallet's competing address with no special step required; the hardware device does not need to be connected for incoming transactions to land.
Security advantage — private key never exposed to the internet-connected operating system; signing occurs entirely inside the secure element; confirmation on the physical screen prevents remote transaction modification.
Operational consideration — physical device required for each signing; for daily competition participation, this adds 1–2 minutes per entry compared to mobile soft wallets; manageable for most daily competition participants.
Hardware wallets are the right choice when the amounts at stake justify the additional step of physical confirmation. For daily competition with routine amounts, software and mobile wallets deliver the same on-chain result with less friction. For larger accumulated balances that represent significant value, the security margin of hardware is worth the slight operational overhead. Bitok Arena's common recommendation is hardware for the prize accumulation wallet and a software or mobile wallet for the active daily competition entries — separating security levels according to the actual balance at each stage.
Software and Mobile Wallets
Desktop software wallets produce self-custody with the key stored in encrypted form on the device. Electrum has been the reference Bitcoin desktop wallet since 2011 — minimal, auditable, and trusted by participants who think carefully about what they rely on. Sparrow targets privacy-conscious participants who want full transaction control on the desktop. Exodus runs on both desktop and mobile and is the most accessible entry point for new competition participants who want a clear interface without sacrificing key ownership. Mobile wallets make on-chain competition participation possible from a phone: Trust Wallet and BlueWallet both produce genuine self-custody addresses on Android and iOS.
Bitok Arena reviewed the software and mobile wallet categories most commonly used by on-chain competition participants, noting the relevant properties for each.
Electrum (desktop) — minimal, open-source, Bitcoin-only; supports Native SegWit bc1q addresses; advanced fee control useful for competition entry timing; appropriate for technical participants who want full control.
BlueWallet (mobile) — open-source, Bitcoin-only, iOS and Android; generates bc1q addresses; clean interface designed for regular use; appropriate for mobile-first participants.
Trust Wallet (mobile) — multi-asset, closed-source but widely audited; generates bc1q addresses for Bitcoin; appropriate for participants who already use Trust Wallet for other assets and want to consolidate devices.
Seed phrase requirement — every self-custody wallet generates a seed phrase at creation; this phrase is the only backup that matters; write it on paper, store it offline, and treat it as the single point of recovery for everything the wallet holds.
The only wallet category that does not work for on-chain competition is custodial — exchange accounts, hosted wallets, and any service where the participant sees a balance but does not hold the seed phrase. This is not a limitation of the competition. It is a limitation of custodial accounts: they do not own Bitcoin addresses. They manage balance entries in private databases. On-chain competition is built on the Bitcoin blockchain, not on private databases. An exchange that sends from a shared pool address creates a leaderboard position attached to an address the exchange controls — which means any prize goes to the exchange, not to the individual participant who funded the entry.
The Single Condition That Rules Wallets Out
The question "which wallet type works for on-chain competition?" resolves to one condition rather than a list of compatible models. The condition is self-custody: the participant holds the seed phrase or private key, and no external party can sign transactions or move funds without that key. Any wallet that satisfies this condition works. Any wallet that does not satisfy it fails — regardless of what the interface looks like or what the platform claims about the security of its hosted service.
Hardware, software, desktop, or mobile — every wallet type produces a valid competition address if the private key belongs to the participant. Custodial wallets produce addresses that belong to the custodian. Prizes go to the address; the address belongs to whoever controls the private key. Any wallet category delivers the right outcome as long as self-custody is maintained.
Participants who already have a self-custody Bitcoin wallet have everything they need to enter an on-chain competition round. The wallet type they are using is already correct if they hold the keys. The next step is simple: copy the competition address, send BTC from the self-custody wallet, confirm the transaction. The leaderboard updates the moment the transaction confirms. The wallet architecture behind the competing address is invisible to the competition — as it should be, because the blockchain only records addresses and amounts, not the software or hardware that generated them.
Bitok Arena's review of wallet compatibility for on-chain competition found a single determining factor: self-custody. Hardware wallets (Ledger, Trezor, SafePal), software wallets (Electrum, Sparrow), and mobile wallets (BlueWallet, Trust Wallet) all produce valid competing addresses — exchange accounts and hosted wallets do not. The wallet type is secondary; custody is the condition.