Educational information, not financial advice.
"Crypto" is used for thousands of tokens. They share some technology with bitcoin, but they answer a different question.
The problem
Most tokens have someone in charge: a founder, a foundation or a company. Many started with a premine, an allocation for insiders. Someone can usually change the supply or the rules.
Bitcoin's answer
- No issuer. Coins come only from mining under rules every full node enforces (no issuer).
- No premine. Issuance started in January 2009 with a public schedule for everyone.
- Fixed rules. The 21 million cap and the halving schedule are checked by every node, not promised by a team.
- Proof of work. New blocks cost real energy, so rewriting history is expensive.
Why it matters
When the SEC approved spot ETPs on 10 Jan 2024, the approval covered bitcoin specifically. Regulators often treat bitcoin differently from tokens with an issuer, because no one stands behind it to promise anything.
Rule of thumb: ask "who can change this, and who got coins first?" For bitcoin the answer is "nobody alone" and "whoever mined, under public rules".