Za blockchain oracles ndi pang'ono za Web3

Pakadali pano, ma blockchains ali olekanitsidwa kwambiri ndi magwero akunja azidziwitso - zonse zapakati ndi blockchains zina. Kuonetsetsa kuti ma blockchains osiyanasiyana amagwirizana komanso kusinthanitsa deta mosavuta pakati pawo (komanso ndi zinthu zakunja), oracles angagwiritsidwe ntchito.

Kodi oracles ndi chiyani

Oracle ndi dongosolo lomwe limalandira ndi kutsimikizira zochitika kuchokera kunja kwa blockchain ndikutumiza deta iyi ku blockchain kuti igwiritsidwe ntchito pamakontrakitala anzeru (kapena mosemphanitsa). Oracles ndi ofunikira kwambiri pamakontrakitala anzeru chifukwa makontrakitala anzeru amatsimikiza kwambiri. Chidziwitso chiyenera kulowa mu mgwirizano wanzeru kudzera mu njira inayake yomwe ingatsimikizire kulondola kwake.

Pali mitundu ingapo ya malankhulidwe omwe amapereka njira imodzi kapena ina yolumikizirana:

• mapulogalamu - kulandira deta kuchokera pa intaneti kapena ku blockchains ena;
• hardware - kulandira deta kuchokera ku masensa osiyanasiyana (RFID ma tag, nyumba yanzeru; panokha, kugwiritsa ntchito zinthu ndi IoT nthawi yomweyo kumakumbukira);

  Chitsanzo: deta ya kutentha kwa mpweya iyenera kusamutsidwa ku mgwirizano wanzeru. Mutha kutenga deta kuchokera pa intaneti kudzera pa pulogalamu ya pulogalamu, kapena kuchokera ku sensa ya IoT kudzera pa oracle ya hardware. *IoT Intaneti ya Zinthu.

• zomwe zikubwera - kuchokera kunja kwa blockchain kupita ku mgwirizano wanzeru;
• zotuluka - kuchokera ku mgwirizano wanzeru kupita kuzinthu zina;

Nthawi zina mawu ogwirizana amagwiritsidwa ntchito. Maulalo angapo amalandira deta, kenako amagwiritsa ntchito algorithm kuti adziwe zomwe atulutsa.

Chitsanzo cha chifukwa chake izi zikufunika: 3 oracles amalandira mlingo wa BTC / USD kuchokera ku Binance, BitMex ndi Coinbase, ndikutumiza mtengo wapakati monga zotuluka. Izi zimachepetsa kusiyana kwakung'ono pakati pa kusinthanitsa.

Web3

Polankhula za oracles ndi kukhazikitsidwa kwawo, munthu sanganyalanyaze Web3, lingaliro lomwe adapangidwira. Web3 poyamba inali lingaliro la ukonde wa semantic, pomwe tsamba lililonse limayikidwa ndi metadata kuti lithandizire kulumikizana ndi injini zosaka. Komabe, lingaliro lamakono la Web3 ndi netiweki yomwe ili ndi dApps. Ndipo mapulogalamu okhazikitsidwa amafunikira olankhulira.

N'zotheka (ndipo, nthawi zina, kofunika) kupanga oracle nokha, koma pali mawu omwe amagwiritsidwa ntchito kawirikawiri (mwachitsanzo, jenereta ya nambala yachisawawa), choncho ndizotsika mtengo kugwiritsa ntchito mapulojekiti olankhula. Ntchito zazikulu ziwiri (pakali pano) zomwe zikupanga maulalo ndi: Band и chainlink.

Protocol band

Band Protocol imayenda pa dPoS consensus algorithm (ichi ndi chiyani) ndipo opereka deta ali ndi udindo wowona ndi ndalama, osati mbiri chabe.

Pali mitundu itatu ya ogwiritsa ntchito mu chilengedwe cha polojekiti:

• Opereka ma data omwe amagwira ntchito mwaokha kusamutsa deta kuchokera kunja kwa blockchain kupita ku blockchain. Omwe ali ndi ma tokeni amabetcha paopereka ma data kuti awapatse ufulu wopereka deta ku protocol.
• Opanga DApp omwe amalipira ndalama zochepa kuti agwiritse ntchito oracle.
• Osunga ma band token omwe amavotera opereka ma data. Povota ndi zizindikiro zawo kwa wothandizira, amalandira mphotho kuchokera ku ndalama zomwe zimaperekedwa ndi dApps.

Mwa mawu operekedwa ndi Band m'bokosilo: kunyamuka kwa ndege / nthawi yotera, mapu a nyengo, mitengo ya cryptocurrency, golide ndi mitengo yamtengo wapatali, zambiri za midadada ya Bitcoin, mtengo wamafuta wapakati, kuchuluka kwa kusinthanitsa kwa crypto, jenereta ya nambala mwachisawawa, Yahoo Finance, HTTP Kodi Status.

Mwa njira, pakati pa osunga ndalama a Band pali thumba lodziwika bwino Sequoia и Binance.

chainlink

Mwambiri, Chainlink ndi Band ndizofanana kwambiri - zonse pamayankho osakhazikika komanso pakukweza. Chainlink ndiyosavuta kugwiritsa ntchito, palibe kuvotera kwa omwe amapereka zidziwitso, ndipo Band imasinthasintha chifukwa imagwiritsa ntchito. Cosmos SDK ndipo ndi 100% open source.

Pakadali pano, Chainlink ndiyotchuka kwambiri, ndi Google Cloud, Binance, Matic Network ndi Polkadot pamndandanda wa omwe amathandizira nawo polojekiti. Chainlink adangoyang'ananso mawu olankhulira pagawo Defi, yomwe tsopano ikukula mofulumira.

Zida zomwe deta yake ingapezeke kudzera mu oracle kuchokera ku Chainlink.

Pomaliza

Oracles ndi lingaliro labwino lopezera deta kuchokera kuzinthu zapakati kupita ku blockchain, ndipo ndikuyang'anitsitsa chitukuko chake. Komabe, ngati tilankhula za kuyanjana kwa blockchains zosiyanasiyana, pali mayankho ena, kuphatikiza ma parachains (ukadaulo wodalirika kwambiri komanso mutu wa positi yanga yotsatira).

Kwa iwo amene akufuna kukumba mozama: Band Docs, Chainlink Docs.

Source: www.habr.com