Every way of holding bitcoin is essentially a different asset.
Only one of them is the real bitcoin — the physical bitcoin the rest of this site describes.
This page examines how the variations compare.
In 1933, Executive Order 6102 caught gold in both of its forms. Paper gold — the certificates and bank claims that most "gold ownership" had quietly become — was cancelled by memo: banks converted certificates to fiat on instruction, and the state seized the ledger without touching the metal. Physical gold was surrendered too — not because the state could find it, but because its use was compromised, and anyone caught still holding it faced prison and fines; defiance was impractical. The Bitcoin Migration tells this history in full. This page is about the different ways to hold bitcoin today — and how to recognize, and where possible minimize, exposure to 6102-type risks.
Gold fell to 6102 in both its forms. Bitcoin can fall in only one — and that form is a choice.
There are different ways to invest in or hold bitcoin, and each carries its own structure of ownership. The differences are easiest to see at the far end of the spectrum. A retail holder of a spot bitcoin ETF stands five claims away from any actual bitcoin. The holder has a claim on their broker — a book-entry "security entitlement," not a certificate. The broker holds its position through the Depository Trust Company, whose nominee, Cede & Co., is the legal owner of record of the shares. The shares represent fractional interests in a trust. The trust, in turn, holds a contractual claim on a custodian: a single firm, Coinbase Custody, secures more than 80% of all US spot-ETF bitcoin, under agreements with limited insurance and contractual liability caps detailed in the funds' own filings. And the trust's creation and redemption flows are pooled through a prime execution agent alongside other clients' assets.
The bottom of that chain is an open legal question — by the fund sponsor's own admission. BlackRock, sponsor of the largest spot bitcoin ETF, states in the IBIT prospectus that customer protections in a custodian insolvency are "relatively untested," that courts "have not yet considered this type of treatment for custodied digital assets," and that the Trust may be at risk of being treated as a general unsecured creditor — subject, in its words, to the risk of total loss. Coinbase, the custodian, expresses in its own filings a belief that courts would protect custodied assets. The prospectus says, in effect, that nobody yet knows.
Broadly speaking, bitcoin can be held in at least five different ways. In each of them, the holder will say they "own bitcoin" — but only one of these paths provides ownership in the full sense. The others are better described as bitcoin price exposure — or, for coins left on an exchange, essentially an IOU for bitcoin — each subject to its own set of risks. Select a way of holding below and compare what survives of bitcoin's properties — and what each path asks of you in return.
The exchange holder and the ETF holder look similar — both trusted a third party with the keys. But one bought a position with an exit, and one bought a position with a toll booth on the exit. A holder of coins at an exchange who decides, next year or next decade, to take real custody makes one withdrawal — a network fee, no taxable event — and the move is complete, because they are moving property they already own. The ETF holder in a taxable account must sell (and recognize every dollar of gain), transfer the cash, rebuy the coins across a second spread, and then withdraw. Retail in-kind redemption does not exist: since mid-2025, redeeming shares for actual bitcoin is permitted — but only for Authorized Participants, in baskets of tens of thousands of shares. For everyone else, the only door out of the ETF is the sale.
There is one honest exception, and it deserves plain statement: inside an IRA or 401(k), the ETF is not a cul-de-sac but can be the only road. It is sometimes the sole practical way to hold bitcoin exposure in the accounts where many people keep most of their wealth, with tax-deferred or tax-free compounding that nothing on this page can match. The price is the wrapper's own rules — required minimum distributions, and the permanent impossibility of ever taking coins in kind. For some readers that trade is right. It should simply be made knowingly.
Optionality, in other words, is itself a property. The exchange account — the baby step — preserves your future self's ability to take self-custody eventually; the ETF path does not.
There is an honest complication here, and it cuts against this page's own argument. France has become the world's center of "wrench attacks" — physical coercion against bitcoin holders — with dozens of abductions in a single recent year, roughly a quarter of the world's documented cases: a hardware-wallet founder's finger severed for ransom, a CEO's daughter nearly taken in daylight, families targeted at home. The attack vectors were databases: a hardware-wallet vendor's 2020 breach exposing 270,000 names and home addresses; a French crypto-tax platform's 2026 breach exposing 50,000 users' balances; a tax official reportedly selling state-held data to the gangs; ordinary bragging on social media.
In every case, physical risk followed the records of ownership, not the location of the private keys. Your keys can be mathematically unbreakable while your shipping address is not. The implications cut in different directions, and the grid states them plainly. The ETF genuinely mitigates the wrench-attack risk: there is no bearer asset to hand over at gunpoint, and no presence in crypto-vendor databases. A single hardware wallet genuinely concentrates the risk, because the key's holder is the vault's door. And a multisig self-custody approach structurally mitigates it: with keys split across locations — or with a service holding one — no single person, including the owner under duress, can move the coins, and time-delays and duress protocols exist to mitigate or eliminate precisely this risk of attack.
The dimension where paper is strongest and the dimension where it is weakest are different dimensions. That is the grid's whole point.
The strongest case against self-custody deserves to be stated in full: cryptographic sovereignty is incompatible with human fallibility. An estimated 2.3 to 4 million coins — somewhere between a tenth and a fifth of all the bitcoin that will ever exist — are already permanently lost: not confiscated, and not stolen from exchanges, but lost to failed backups, forgotten phrases, and estates that died with their owners. For a holder who cannot guarantee flawless operational security across decades — or whose family has not been prepared to navigate a hardware wallet in inheritance circumstances — the statistical risk of self-inflicted loss can genuinely exceed the risk of institutional failure. Anyone who claims otherwise is selling certainty they do not have.
But notice what this argument actually proves. Every coin in that graveyard was lost to a single point of failure — one phrase, one device, one person's memory. The argument is not for paper; it is for engineering the single point of failure away, which is exactly what multisig does. A two-of-three quorum survives a lost key, a house fire, or a death — whether a service holds one of the three keys, or the keys are simply kept in geographically dispersed locations. The choice does not have to be sovereignty or safety; it can be both, when the challenges are tackled thoughtfully and holistically. A number of expert resources on key management are freely available — among the most established are Unchained's guides, Casa's documentation, Bitcoiner.guide, and the 10x Security Bitcoin Guide.
In February 2022, the Canadian government invoked the Emergencies Act in response to the trucker-convoy protests. Within days, exchanges had frozen accounts linked to the protests — no court order was required — while self-custodied coins continued to move through the same blockade, because there was no intermediary to receive the instruction. The same week, in the same country, the same asset produced opposite outcomes, depending only on how it was held. It is the cleanest natural experiment custody has ever produced.
And it sits on a century of precedent. 1933: paper claims and centralized custody made gold seizable by memo. Cyprus, 2013: uninsured bank deposits were legally converted into shares of the failing banks that held them — the bail-in moved from theory to template, and is now codified resolution policy on both sides of the Atlantic. Celsius, 2023: a bankruptcy court found that the platform's terms of service had legally transferred $4.2 billion of customers' coins to the platform — what they owned was an IOU, and they learned it in court. The pattern across a hundred years is consistent: claims on assets are raw material for crisis resolution; bearer assets are not.
All of which makes the game theory worth stating — as inference rather than precedent, though the inference is tight. A modern 6102 could capture only the paper quadrants. Announcing it would catalyze migration into the one quadrant it cannot reach, and jurisdictional flight by holders whose asset boards the plane with them. The order would strengthen the very thing it targets — which is precisely what 1933's order did not do, because gold had nowhere to go. An attack that advertises its own escape route is an attack a rational state hesitates to launch. And the quiet corollary: the more bitcoin sits in paper form, the cheaper and more rational that order becomes. Every self-custodied coin raises its price. Custody is not only a personal risk decision; it is a vote on whether the attack is worth attempting at all.
Walk the warm rows of the grid one last time. Only self-custodied bitcoin retains the full set of properties the Foundations pages describe — bearer status, freeze immunity, border portability, unconfiscatability in practice. Gold held those properties in theory and lost them in practice, because self-custody of gold could never sidestep a government decree: holding it became criminal, and hiding it removed it from use. Bitcoin is the first money whose physical form is practical — which means that, for the first time in monetary history, these properties are genuinely available to the ordinary holder. They are not automatic, however; they belong only to whoever holds the keys. Each layer of custody placed between the holder and the keys gives some of these properties away.
6102 caught gold in the vault and gold in the hand.
It can catch bitcoin only on paper.
Every page on this site has been improved by someone pushing on it. Ask a question, flag an error, or suggest what’s missing — it goes straight to the author, never published.