Bitcoin
Settlement and issuance. Everything else is a layer on top.
| Team | Role |
|---|---|
| Bitcoin Core | Reference client. Consensus. The chain. |
| Lightning Labs | Lightning + Taproot Assets. Payments and dollar rails on Bitcoin. |
| Sparrow | Desktop wallet for people who actually control UTXOs. |
| Ledger | Cold storage. Pair with Sparrow or Xverse. |
| Xverse | Consumer wallet for Ordinals / Runes. |
| UniSat | Indexer + marketplace + wallet for Bitcoin-native assets. |
| Stacks | Bitcoin-anchored smart contracts. sBTC / BTCFi. |
| BOB | Hybrid Bitcoin L2. Real BTCFi TVL. |