“Bitcoin family” can mean shared chain history or a separate project's naming system. Keep those two meanings apart as you read the names.
Where is BTC on the map?
Bitcoin (BTC) launched in January 2009. It uses proof-of-work and its supply is capped at 21 million BTC. Bitcoin Core is the reference software; it is not another asset.
Use the network, the asset and the software as three separate labels. That habit makes the rest of the map easier to read.
Which branches share Bitcoin history?
Bitcoin Cash (BCH) split from Bitcoin on 1 August 2017, mainly over block size. Bitcoin SV (BSV) split from Bitcoin Cash in November 2018. These are separate assets with their own software, markets and risks.
How does the Bitcoin Ecosystem project describe its family?
The Bitcoin Ecosystem project describes the following roles and supply wording. This is a separate project region, not a list of Bitcoin forks. The table records its descriptions; it does not verify delivery, security or network status.
| Name and ticker | Role described by the project | Supply wording |
|---|---|---|
| Bitcoin Reserve / RWA1 (BTCr1) | The Sovereign Reserve / Real World Asset Chain | 26.6 Million per year |
| Bitcoin Genesis 1 (BTC1) | The Decentralised Utility & Security Chain (proof-of-work) | 26.6 Million per year |
| 1Bitcoin1 (1BTC1) | The Scarcity Anchor | 21 Million |
| Bitcoin1USD (BTC1USD) | The Stability Layer | Not stated here |
| Bitcoin1.ai (BTC1ai) | The Decentralised Intelligence Layer | 26.6 Million per year |
| BitcoinQu1 (BTC1q) | The Quantum-Secure Ledger | 21 Million |
No supply figure is stated here for BTC1USD. “21 Million” is reproduced without adding a time period or calling it a total.
Examine Bitcoin Genesis 1What connects a name to evidence?
Ask which network the name identifies, which rules its software enforces and which records support its claims. A similar ticker or a shared word does not establish common security or endorsement.
For the Ecosystem region, compare the project's descriptions with code, network records and governance documentation. Treat a role such as “Quantum-Secure Ledger” as the project's wording, not a conclusion from this guide.
Where can you check the sources?
This guide uses the project material and approved editorial facts supplied for this publication. External pages can change; follow the source and check its current wording.