ethereum▫️▫️a▫️next-generation▫️smart▫️contract▫️and▫️decentralized▫️application▫️platform▫️▫️when▫️satoshi▫️nakamoto▫️first▫️set▫️the▫️bitcoin▫️blockchain▫️into▫️motion▫️in▫️january▫️2009▫️he▫️was▫️simultaneously▫️introducing▫️two▫️radical▫️and▫️untested▫️concepts▫️▫️the▫️first▫️is▫️the▫️bitcoin▫️a▫️decentralized▫️peer-to-peer▫️online▫️currency▫️that▫️maintains▫️a▫️value▫️without▫️any▫️backing▫️intrinsic▫️value▫️or▫️central▫️issuer▫️▫️so▫️far▫️the▫️bitcoin▫️as▫️a▫️currency▫️unit▫️has▫️taken▫️up▫️the▫️bulk▫️of▫️the▫️public▫️attention▫️both▫️in▫️terms▫️of▫️the▫️political▫️aspects▫️of▫️a▫️currency▫️without▫️a▫️central▫️bank▫️and▫️its▫️extreme▫️upward▫️and▫️downward▫️volatility▫️in▫️price▫️▫️however▫️there▫️is▫️also▫️another▫️equally▫️important▫️part▫️to▫️satoshis▫️grand▫️experiment▫️▫️the▫️concept▫️of▫️a▫️proof▫️of▫️work-based▫️blockchain▫️to▫️allow▫️for▫️public▫️agreement▫️on▫️the▫️order▫️of▫️transactions▫️▫️bitcoin▫️as▫️an▫️application▫️can▫️be▫️described▫️as▫️a▫️first-to-file▫️system▫️▫️if▫️one▫️entity▫️has▫️50▫️btc▫️and▫️simultaneously▫️sends▫️the▫️same▫️50▫️btc▫️to▫️a▫️and▫️to▫️b▫️only▫️the▫️transaction▫️that▫️gets▫️confirmed▫️first▫️will▫️process▫️▫️there▫️is▫️no▫️intrinsic▫️way▫️of▫️determining▫️from▫️two▫️transactions▫️which▫️came▫️earlier▫️and▫️for▫️decades▫️this▫️stymied▫️the▫️development▫️of▫️decentralized▫️digital▫️currency▫️▫️satoshis▫️blockchain▫️was▫️the▫️first▫️credible▫️decentralized▫️solution▫️▫️and▫️now▫️attention▫️is▫️rapidly▫️starting▫️to▫️shift▫️toward▫️this▫️second▫️part▫️of▫️bitcoins▫️technology▫️and▫️how▫️the▫️blockchain▫️concept▫️can▫️be▫️used▫️for▫️more▫️than▫️just▫️money▫️▫️commonly▫️cited▫️applications▫️include▫️using▫️on-blockchain▫️digital▫️assets▫️to▫️represent▫️custom▫️currencies▫️and▫️financial▫️instruments▫️▫️colored▫️coins▫️▫️the▫️ownership▫️of▫️an▫️underlying▫️physical▫️device▫️▫️smart▫️property▫️▫️non-fungible▫️assets▫️such▫️as▫️domain▫️names▫️▫️namecoin▫️▫️as▫️well▫️as▫️more▫️advanced▫️applications▫️such▫️as▫️decentralized▫️exchange▫️financial▫️derivatives▫️peer-to-peer▫️gambling▫️and▫️on-blockchain▫️identity▫️and▫️reputation▫️systems▫️▫️another▫️important▫️area▫️of▫️inquiry▫️is▫️smart▫️contracts▫️-▫️systems▫️which▫️automatically▫️move▫️digital▫️assets▫️according▫️to▫️arbitrary▫️pre-specified▫️rules▫️▫️for▫️example▫️one▫️might▫️have▫️a▫️treasury▫️contract▫️of▫️the▫️form▫️a▫️can▫️withdraw▫️up▫️to▫️x▫️currency▫️units▫️per▫️day▫️b▫️can▫️withdraw▫️up▫️to▫️y▫️per▫️day▫️a▫️and▫️b▫️together▫️can▫️withdraw▫️anything▫️and▫️a▫️can▫️shut▫️off▫️bs▫️ability▫️to▫️withdraw▫️▫️the▫️logical▫️extension▫️of▫️this▫️is▫️decentralized▫️autonomous▫️organizations▫️▫️daos▫️▫️-▫️long-term▫️smart▫️contracts▫️that▫️contain▫️the▫️assets▫️and▫️encode▫️the▫️bylaws▫️of▫️an▫️entire▫️organization▫️▫️what▫️ethereum▫️intends▫️to▫️provide▫️is▫️a▫️blockchain▫️with▫️a▫️built-in▫️fully▫️fledged▫️turing-complete▫️programming▫️language▫️that▫️can▫️be▫️used▫️to▫️create▫️contracts▫️that▫️can▫️be▫️used▫️to▫️encode▫️arbitrary▫️state▫️transition▫️functions▫️allowing▫️users▫️to▫️create▫️any▫️of▫️the▫️systems▫️described▫️above▫️as▫️well▫️as▫️many▫️others▫️that▫️we▫️have▫️not▫️yet▫️imagined▫️simply▫️by▫️writing▫️up▫️the▫️logic▫️in▫️a▫️few▫️lines▫️of▫️code▫️.eth, an ENS name.