The question of who gets the Bitcoin if the holder dies is not answered by a will — it is answered by the seed phrase. A will can name a beneficiary. It cannot grant that beneficiary access to a self-custody wallet. The seed phrase is the wallet. If it is destroyed or inaccessible, the BTC at those addresses is permanently gone — including any on-chain competition prizes that arrived after the round closed. Bitcoin's design does not include account recovery, password reset, or customer support. The inheritance question is technical before it is legal: how does the heir access the seed phrase at the right moment without holding it during the holder's lifetime in a way that creates a security exposure? Bitok Arena Research examined the inheritance options and what Bitcoin holders using self-custody wallets for on-chain competition need to plan specifically.
Bitok Arena's read: Bitcoin inheritance fails at the seed phrase. A will that says "leave my Bitcoin to my daughter" is worthless if the daughter cannot access the wallet. The technical problem — how to transfer seed phrase access at the right moment — must be solved before any legal or estate planning document is drafted. The Bitcoin does not care about the will.
The practical question for any Bitcoin holder is whether on-chain earnings survive the holder. They do — because on-chain Bitcoin competition prizes are permanent entries on the Bitcoin blockchain, not balances held in a platform account. Every prize received at a self-custody address remains at that address until someone with the correct private key moves it. Bitcoin confirmation finality — which makes competition results permanent and verifiable in real time — also makes on-chain prizes permanently accessible to whoever inherits access to the controlling private key. The heir does not need to contact any platform, present identification, or make a claim. Access to the private key is access to the Bitcoin.
The Security Paradox of Seed Phrase Inheritance
Bitcoin's inheritance problem is a security paradox: the seed phrase must be inaccessible to everyone except the intended heir, but accessible to that heir at the exact moment it is needed. Sharing the seed phrase during the holder's lifetime solves the accessibility problem but creates a security problem — the heir now has unilateral access to move the BTC at any time before the holder's death. Sealing the seed phrase in an envelope to be opened only after death solves the security problem but creates a practical problem — the envelope can be lost, opened prematurely, or inaccessible in a jurisdiction where physical estate access is delayed by legal proceedings.
Bitok Arena reviewed four Bitcoin inheritance approaches and the trade-off each makes between lifetime security and heir accessibility:
Sealed instruction letter with access location — stored with estate documents; accessible at the right time but vulnerable to loss, damage, or premature discovery; the simplest approach for most holders.
Split storage across locations — the private key access information divided across separate locations; reduces single-point failure but requires the heir to locate every part independently before access is possible.
Trusted third-party custodian — a solicitor or estate trustee holds sealed access information to be released on death; introduces a counterparty but solves the timing problem without exposing access during the holder's lifetime.
Multisig with inheritance key — a 2-of-3 setup where the heir controls one key; cannot spend alone during the lifetime but can reconstruct control after death with a second key from a trustee or co-signer.
Why Bitcoin results cannot be faked applies directly to the inheritance situation: on-chain competition prizes are permanent entries on the public blockchain, not balances in a platform database. A prize received at an entry wallet address remains there until someone with the controlling private key moves it — verifiable by any block explorer at any time, without any platform's involvement. If the holder dies after the prize arrives but before moving it to the savings wallet, the prize remains at the entry wallet address. If the entry wallet and savings wallet use separate private key sets — as recommended for security separation — the inheritance plan must explicitly cover both.
What the Inheritance Letter Must Specify
The inheritance plan must be specific about which wallet software was used, not just that a wallet exists. On-chain competition prizes accumulate at addresses generated by a specific wallet application. If the heir accesses the private key information but uses different wallet software, they may see an empty balance — because different wallet applications can generate different address sequences from the same underlying access information. Bitcoin's decentralised architecture means no platform can tell the heir where the prizes are. The on-chain record is public and permanent, but finding and accessing it requires knowing exactly which wallet application to use.
Bitok Arena identified the minimum information a Bitcoin holder's inheritance letter must include alongside the wallet access information:
Wallet software and version — different apps generate different addresses from the same underlying access information; the heir must use the same app to find the correct balances.
Address type used — note whether the wallet generates bc1q (Native SegWit) addresses; the heir can verify by querying the address directly on any public block explorer before assuming the balance is zero.
Both wallets if separate — if separate wallets are used for transactions and savings, identify both and their purposes; each may hold BTC the heir would otherwise miss.
The specific Bitcoin address — so the heir can query it directly on any public block explorer and see the full on-chain history without relying on any platform or intermediary.
Bitcoin does not time out. The on-chain record is permanent. A prize that arrives after the holder's death and before the heir accesses the wallet will still be there when the heir gains access. The heir who accesses the wallet six months after the holder's death will see every transaction that ever occurred at those addresses — including any prizes received in the interim. The Bitcoin is not lost in the estate. It is inaccessible until the correct wallet access information is retrieved, and then it is fully available to whoever holds that information.
Planning the Access, Not Just the Transfer
The private key that controls a self-custody Bitcoin wallet — represented as a series of words generated once when the wallet is set up — is the complete key to every address the wallet will ever use. The inheritance plan is essentially a plan for how the heir receives that key information in usable form at the right moment. A sealed physical copy in a secure location known to the heir, combined with a letter of instruction specifying the wallet software and the on-chain address, is the minimum viable inheritance plan for anyone holding BTC in self-custody. The private key itself is never changed. If the heir receives it in the correct form, they have complete access to the wallet and every prize that ever arrived at its addresses.
Bitok Arena's position: Bitcoin inheritance is not about lawyers or wills first — it is about the seed phrase. Whoever has the seed phrase has the Bitcoin. A prize at a self-custody address belongs to whoever controls the private key derived from that seed phrase. Plan the seed phrase access before drafting any legal document. The seed phrase is what actually transfers the BTC — the will describes intent, the seed phrase enables it.
An active on-chain Bitcoin competitor who has not addressed inheritance has created an asset that could become permanently inaccessible. The competition entries are on the blockchain. The prizes are on the blockchain. The private key access information that controls those addresses needs a documented, tested inheritance path — where it is stored, who knows where it is, which wallet software to use, and how to verify the balance has been correctly recovered. The inheritance plan costs an hour to put in place. The alternative is an asset that survives on the blockchain indefinitely, visible on the public record, but belonging to no one who can reach it.
Bitok Arena's inheritance analysis confirms one structural fact: Bitcoin is accessible only through the seed phrase, not through a will. Without the seed phrase, wallet software name, and derivation path documented in an accessible letter, a named heir inherits nothing.