Long hexadecimal addresses are hostile to human use, and naming systems exist to replace them. The name is itself an on-chain asset with rules worth understanding.
A name is a record, not an alias
Registering a name creates an entry in a registry contract that maps the name to whatever the owner sets, most commonly a wallet address.
Because the mapping is set by the owner, it can be changed at any time. A name resolving to one address today may resolve elsewhere tomorrow.
The name and the address are therefore separate things, and software resolving a name is trusting whoever currently controls the registration.
Ownership works like a token
Registrations are typically represented as transferable tokens, so a name can be sold, transferred, or lost in exactly the ways any other token can.
This also means a name can be held in one wallet while pointing at an address in another, which is a common arrangement for security reasons.
The consequence for a recipient is direct: sending funds to a name means sending to whatever address its current owner has configured.
Expiry is the part people miss
Most naming systems rent rather than sell, with registrations lapsing unless renewed. A lapsed name returns to availability and can be claimed by anyone.
Someone who registered a name years ago and forgot may find it resolving to a stranger's address, while old records and saved contacts still point at it.
Grace periods exist to soften this, but they are finite, and the responsibility for renewal rests entirely with the owner.
Resolution happens outside the chain
A wallet resolving a name queries the registry through a node, and the accuracy of the answer depends on that connection being honest and current.
Interfaces that display a name instead of an address hide the underlying value, which is convenient and removes the user's ability to verify it directly.
Look-alike registrations exploit exactly this, using characters that render similarly so a displayed name appears to be one a user recognizes.
What names solve and what they do not
They meaningfully reduce transcription errors, which were a genuine source of loss when addresses had to be copied by hand.
They do not establish identity. A name resembling a well-known brand says nothing about who registered it, since registration is generally open to anyone.
Treating a name as a convenience rather than a credential is the accurate posture, and confirming the resolved address before a large transfer remains worthwhile.