Who can freeze what

The most useful question in digital assets is not what something is worth. It is who can stop you from using it. The answers differ more than most people expect, and they are knowable in advance.

Take digital dollars. The largest ones, including USDC and USDT, are issued by companies that hold real reserves and, importantly, hold a freeze switch. They can and do lock individual addresses, usually at the request of law enforcement. For most clients most of the time that is a feature: it is how stolen funds get stopped. But it means those dollars settle through a company, and a company can be compelled, mistaken, or hacked.

Other assets have nobody to compel. Ether, the native asset of the Ethereum network, has no issuer, no headquarters, and no switch: there is no party who can freeze a specific holder's coins. That property, call it sovereignty, is not automatically better. It simply belongs in a different place in a portfolio, sized for a different purpose.

The full picture has four layers, and the weakest one governs. The asset itself: can its issuer freeze it? The venue it sits in: what can that software's governing committee do? The network it settles on: who orders the transactions? And the custody: who holds the keys, you or an institution? A position is only as free, and only as protected, as the most constrained of its four layers. Professional research grades each layer before any dollar moves, and writes the answer down.

• For each digital asset I hold: who, if anyone, can freeze it?
• Which layer is the weakest in my position, and is that on purpose?
• If sovereignty matters to me, what am I paying for it in yield or convenience?