[{"type":"report","id":"BLC-STUDY-1433","title":"SWAPN, DUPN and EXCHANGE instructions","author":[{"literal":"Alex Beregszaszi"},{"literal":"Charles Cooper"},{"literal":"Danno Ferrin"}],"issued":{"date-parts":[[2017]]},"publisher":"Alex Beregszaszi, Charles Cooper, Danno Ferrin","URL":"https://github.com/ethereum/EIPs/blob/master/EIPS/eip-663.md","note":"Rights status: Licensed for redistribution. Not a licence to republish the paper."}]