The lost bitcoin problem

Every other asset in this archive can be found. A bank has a record. A registrar has a shareholder. A county clerk has a deed. Even the assets people hid — Meyer Lansky's, Howard Hughes's — were hidden somewhere, and somebody could in principle be compelled to say where.

Bitcoin held in self-custody is the first widely owned asset in history with no custodian at all. There is no institution holding it on your behalf, which is the entire design. It also means there is nobody to serve with a court order, nobody to present a death certificate to, and nobody who could hand it over even if they wanted to.

The scale of what that has already cost is genuinely large, and genuinely uncertain.

A hard drive, a landfill, and ten years of trying

The best-documented single loss is also the one that ended up in a courtroom, which is why it is here rather than in a technology magazine.

James Howells mined 8,000 bitcoin in 2009, when mining was something a person did on a laptop. The private keys sat on a 2.5-inch hard drive. In August 2013, the drive was discarded and went to the Newport City Council landfill in South Wales. By January 10, 2025, on the court's own figure, those 8,000 coins were worth £617,196,902.

The council refused permission to excavate — citing its environmental permit and the practical problem that the drive is somewhere in roughly a decade of compacted waste. Howells issued proceedings in May 2024, seeking a declaration of ownership, delivery of the drive or permission to dig, and damages in the alternative.

On January 9, 2025, His Honour Judge Keyser KC, sitting as a Deputy High Court judge in the Business and Property Courts in Wales, entered summary judgment for the council. Howells v Newport City Council [2025] EWHC 22 (Ch).

Two grounds, and both of them generalise well beyond bitcoin.

• The statute had already transferred ownership. Section 14(6)(c) of the Control of Pollution Act 1974 provides that anything delivered to a disposal authority in the course of using its facilities belongs to the authority. The judge described that as a complete answer to the claim. The drive stopped being Howells' property the moment it went into the landfill — and the court accepted that the bitcoin was still his, because the coins are intangible property on a public ledger and are legally distinct from the object holding the keys. He still owns the bitcoin. He just cannot reach it, and the thing he needs in order to reach it belongs to somebody else.
• And he was out of time anyway. The judge found Howells knew the facts supporting his claim by November 2013 and did not sue until May 2024. Under the Limitation Act 1980 a six-year period applied, and the argument that the clock restarted in September 2023 when the council first asserted ownership was rejected.

In March 2025 the Court of Appeal refused permission to appeal, Nugee LJ finding no real prospect of success. As of August 2026 the drive has not been recovered.

The limitation point is the one estate lawyers should sit with. The claim was not lost because bitcoin is strange. It was lost because eleven years went by. Every remedy in this area has a clock on it, and the clock starts when the loss happens rather than when somebody finally decides to do something about it.

What a personal representative can actually do

Assume a Florida decedent held bitcoin in self-custody and the family has letters of administration and a suspicion. Here is the honest division between what works and what does not.

• Seize the hardware. This works. Under Fla. Stat. §733.607 the personal representative has the right to take possession or control of the decedent's property and to take reasonable steps to preserve it. §740.05(5) then confirms that a fiduciary with authority over tangible personal property may access that property and any digital asset stored in it, and is an authorised user for purposes of Florida's computer-crimes chapter, chapter 815. The laptop, the phone, the safe deposit box, the drawer with the metal seed-phrase plate — all of it is estate property, and opening it is not an offence.
• Serve the exchanges. This works. An exchange or custodial wallet provider is a custodian under §740.002(7), and the balance is a digital asset under §740.002(9). The §740.007 procedure applies: written request, certified death certificate, certified letters. Most of the crypto that families actually recover is recovered this way.
• Get the catalogue and read it. This works, and it is underused. §740.007 entitles the personal representative to the catalogue of electronic communications — under §740.002(4), who the decedent corresponded with, when, and at what address. Exchange confirmation emails, wallet-recovery notices, and hardware-wallet vendor receipts all show up there. The catalogue is how you find out an exchange account existed at all.
• Compel a private key. This does not work, and no statute changes that. §740.004(2) provides that Chapter 740 gives a fiduciary no new or expanded rights other than those held by the user. The decedent could not recover the key. Neither can the estate. There is no defendant, because a self-custodied wallet has no custodian to sue.
• Hire a recovery service. Sometimes, narrowly. Where a passphrase is partly remembered or a wallet file survives with a forgotten password, brute-force recovery firms occasionally succeed. Where the seed phrase is genuinely gone, the mathematics is the answer and it is not a friendly one.

And the uncomfortable tax note. An asset the estate cannot access is still an asset. Federal estate tax attaches to the fair market value of everything the decedent owned at death, and ownership of bitcoin is a matter of the ledger rather than of access. A Florida personal representative filing the verified inventory under §733.604(1) must list estate property in reasonable detail with its estimated fair market value at the date of death — which means writing down a number for a coin nobody can spend. That is a problem for a tax adviser, and it is a real one.

This is the one asset where the plan has to be physical

Almost everything else in estate planning is solved with a document. Self-custodied cryptocurrency is solved with an object in a location, and the drafting is secondary.

The distinctive problem is that the two failure modes point in opposite directions. Write the seed phrase down somewhere findable and you have created a bearer instrument that anybody who finds it can spend. Hide it well and you have created the Newport problem in miniature. There is no arrangement that is both perfectly secret and perfectly recoverable, and anybody selling you one is selling you something else.

What competent practice looks like, in rough order of usefulness:

• Split the secret. Multisignature wallets and Shamir-style seed splitting let two or three holders be required to move funds — so no single person can steal it and no single loss destroys it.
• Write down where, not what. The will and the trust should say a wallet exists and where the access material is kept. They should never contain the seed phrase itself: a will is deposited with the clerk under §732.901 and a probate file is a public record, even where the inventory under §733.604(1) is not.
• Name a fiduciary who can actually do it. A trustee who does not know what a seed phrase is will not recover one. This is one of the few asset classes where technical competence is a genuine qualification for the job.
• Leave written instructions the fiduciary can follow. Which wallet software, which derivation path, which hardware device, where the backup is. Not a lecture — a checklist.
• Consider a custodian on purpose. Holding some or all of it at a regulated exchange converts an unsolvable problem into a §740.007 paperwork problem. That is a genuine trade-off with genuine counterparty risk, and it should be made deliberately rather than by default.