a list of layer 2 bitcoin and smart contracts built on bitcoin
the lightning network is the most solution but its not the only one in existance
there are also a list of other chains built on bitcoin
rsk is a smart contract chain thats built on top of bitcoin[https://www.rsk.co/](https://www.rsk.co/)
defi chain is another similar service built on bitcoin but markets itself as turing incomplete[https://defichain.com/](https://defichain.com/)
Sovryn is a smart contract defi service thats also built on top of bitcoin[https://www.sovryn.app/](https://www.sovryn.app/)
liquid network is a smart contract that is under the control of bitcoin exchanges and maintained by blockstream (in other words its under corporate control)[https://liquid.net/](https://liquid.net/)
stacks is a defi smart contract service built on top of bitcoin[https://www.stacks.co/](https://www.stacks.co/)
portal defi is in theory supposed to be a defi service built on top of bitcoin but all i see is just a website at the moment[https://portaldefi.com/](https://portaldefi.com/)
Which — if any —of these L2s are truly decentralized?
Liquid is a sidechain, not a layer2.
Stacks using their own token, instead of sats, makes it a shitcoin scam, IMHO.
DeFi chain or DeFi Pain is not built on bitcoin. Its just a shitcoin scam.
Why no mention of RGB?
Guess it’s considered Layer 3?!