学习笔记
Exchange same chain coin
- 协商一个both signed tx
- Create a multi-sign escrow address managed by both users
○ A0 -> multi-sign escrow address -> B0
○ B1 -> multi-sign escrow address -> A1
Exchange different chain coin
https://en.bitcoin.it/wiki/Atomic_swap
- Hash-time lock: hashLock+timeLock
https://en.bitcoin.it/wiki/Hash_Time_Locked_Contracts
○ Can be used in payment channel also - P2P tradeX: need a special chain
○ 链B提交一个特定交易commitment，链A上先正常交易，链B可以解析用户提交的链B的交易，然后链B自动执行交易。从而完成跨链交易
○ https://bitcointalk.org/index.php?topic=91843.0
○ https://bitcointalk.org/index.php?topic=1619536.0
More generation fair exchange
- Fair exchange with RSA blinding
- Fairswap: optimistic proof
- Zkcp: zk proof
Zk proof & optimistic proof
- Truebit/Arbitrume: with a vm for optimistic proof
- Zksync: stnark zk proof