#链上数据洞察 The main types of currencies in the ecosystem include the following:

1. Bitcoin (BTC): Core asset used for value storage and transactions.

2. BRC-20 based tokens: Such as ORDI and TRAC, used for NFT and DApp interactions.

3. Ordinals: Such as SATS and PEPE, NFTs based on the Bitcoin network, used for digital collectibles.

4. Forked coins: Such as BCH (Bitcoin Cash) and BSV (Bitcoin SV), produced through hard forks, with independent blockchains.

5. Other related tokens: Such as DOGE and BDC, which have some connection to the BTC ecosystem.

These currencies have various uses, and investors can choose based on their needs.