Portal 101, What is @PortaltoBitcoin ? Portal is a Layer 2 protocol built to bring trust-minimized interoperability to Bitcoin. Its goal? Let users move assets from other chains to Bitcoin without wrapping, bridging, or custodians. A real cross-chain system, secured by zero-knowledge proofs, light clients, and multi-party computation. It’s one of the first protocols enabling programmable Bitcoin, where Ethereum, Solana, or Aptos apps can interact directly with BTC. It’s already live and getting close to mainnet-TGE.