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Image Zcash NU7: snabbare privata betalningar

Zcash NU7: snabbare privata betalningar

Timer3 min läsning

Zcash genomförde sin uppgradering NU7 vid block 3 543 405 kl. 02:34 UTC den 6 november. Den viktigaste förändringen i uppgraderingen gäller blocktiden: den förväntade väntetiden för en första bekräftelse kortas från 75 till 25 sekunder när svårighetsgraden har stabiliserats på målnivån. En börs som behåller det vanliga kravet på 3 bekräftelser skulle se sin förväntade väntetid on-chain sjunka från cirka 3:45 minuter till ungefär 75 sekunder.

Detta är ett viktigt steg eftersom Zcash tar itu med en av sina största flaskhalsar, som inte är integriteten utan friktionen. Skyddade transaktioner döljer avsändare, mottagare och belopp, vilket vi har utforskat i detalj, men de var långsamma att bekräfta och dyra för plånböcker att hitta. NU7 tar direkt itu med båda dessa problem.

NU7 begränsar också den skyddade aktiviteten i varje block, vilket minskar den maximala mängd data som lätta plånböcker behöver ladda ned varje dag från 271 MB till 169 MB. Men eftersom blocken kommer tre gånger så ofta mer än fördubblas ändå den uppskattade kapaciteten för vanliga privata betalningar, från 2,9 till 6,6 transaktioner per sekund.

Under de första två och en halv timmarna efter aktiveringen kom blocken i genomsnitt var 39:e sekund, medan svårighetsgraden för mining anpassades till den snabbare takten. Separat testade Zakura-teamet fulla block på 2 MB över 80 noder i 11 regioner. Snabbare block innebar mer konkurrens mellan miners som producerade block vid ungefär samma tidpunkt, och andelen block som förkastades av nätverket steg från 1,57 % till 3,43 %. Det förefaller vara en ganska rimlig avvägning för snabbare betalningar.

NU 7 overviewKälla: ZIP 259

Sprout avvecklas och framtida säkerhet finansieras

NU7 avvecklar Sprout, Zcashs ursprungliga skyddade pool, och fryser omkring 12 224 ZEC, mindre än 0,1 % av utbudet. Innehavarna stödde beslutet att ta bort den, eftersom den hade blivit en säkerhetsrisk. Sean Bowe har skisserat ett möjligt sätt att återvinna medlen i en framtida uppgradering, men ingenting har godkänts.

Ändringen av avgifterna styr om 60 % av transaktionsavgifterna till en reserv för framtida belöningar till miners. Dessa medel lämnar omlopp nu och börjar återföras via blockbelöningar runt februari 2031. Taket på 21 miljoner och de planerade halveringarna förblir exakt desamma som tidigare. Avgiftsbidragen är små i dag, men Bowes separata förslag om att styra om de 8 % av emissionen som tilldelas Zcash Community Grants skulle tillföra omkring 144 ZEC per dag, vilket ger betydligt mer finansiering för nätverkets framtida säkerhet. Det finns ingen tidsplan för genomförandet.

Det blir viktigt att se om snabbare bekräftelser leder till ökad användning av Zcash för privata betalningar.

Källor: ZIP 218, ZIP 259, ZecStats