Tsis txawj hloov

Lub sijhawm nyeem ntawv: <1 feeb

Kev tsis tuaj yeem txhais tau tias tsis tuaj yeem hloov tau. Hauv computer science, ib qho khoom siv tsis hloov pauv yog yam khoom uas lub xeev tsis tuaj yeem hloov kho tom qab nws tau tsim.

Kev tsis pom kev tiv thaiv yog ib qho ntawm cov yam ntxwv tseem ceeb ntawm Bitcoin thiab blockchain thev naus laus zis. Cov kev hloov pauv uas tsis txaus ntseeg ua rau nws tsis tuaj yeem ua rau txhua lub koomhaum (piv txwv li tsoomfwv lossis tuam txhab) tswj, hloov lossis xa cov ntaub ntawv tsis raug rau hauv lub network.
Txij li thaum tag nrho cov kev hloov pauv keeb kwm tuaj yeem tshawb xyuas txhua lub sijhawm, immutability tso cai rau qib siab ntawm cov ntaub ntawv kev ncaj ncees.

Cov kev hloov pauv ntawm pej xeem blockchains tuaj yeem txhim kho txoj kev ntseeg siab thiab kev tswj hwm tam sim no, thiab tuaj yeem txo lub sijhawm thiab nqi ntawm kev txheeb xyuas raws li kev txheeb xyuas cov ntaub ntawv yuav yooj yim dua lossis rov ua dua tshiab.

Kev tsis pom kev tuaj yeem tuaj yeem nce qhov kev ua tau zoo ntawm ntau lub tuam txhab los ntawm kev muab rau lawv nrog txoj hauv kev los ua kom muaj keeb kwm ua tiav cov ntaub ntawv ntawm lawv cov txheej txheem kev lag luam. Lub siab tsis tuaj yeem tseem tuaj yeem muab qhov tseeb rau ntau qhov kev tsis sib haum xeeb ntawm cov tuam txhab, vim nws tso cai rau kev txheeb xyuas qhov tseeb thiab qhov khoom ntawm qhov tseeb.

Thaum immutability yog ib qho txiaj ntsig tseem ceeb ntawm Bitcoin thiab blockchain thev naus laus zis, cov ntaub ntawv khaws cia ntawm blockchains tsis muaj kev tiv thaiv zoo tag nrho ntawm qhov muaj peev xwm tiv thaiv: yog tias ib tus tawm tsam tuaj yeem ua kom muaj feem ntau ntawm cov network's hash rate - ua haujlwm hash, tuaj yeem hloov cov ntaub ntawv tsis muaj qhov hloov pauv nyob hauv kev tawm tsam uas tau hu ua 51% tawm tsam.
Thaum zoo li no tus uas tuav 51% ntawm hashrate tuaj yeem tiv thaiv cov kev hloov pauv tshiab los ntawm kev tau txais kev pom zoo lossis txawm tias thim rov qab kev hloov khoom kiag li. Nws puas tseem tuaj yeem tshwm sim rau Bitcoin? Yog, tab sis nws yuav tsum tau monstrous hashing lub zog, cov khoom siv kim heev, thiab cov nqi hluav taws xob tseem ceeb.

Ntawm qhov tod tes, tes hauj lwm Ntawv Pov Thawj Ua Haujlwm nrog qis dua hash lawv yuav muaj kev cuam tshuam rau kev tawm tsam, raws li kev sib sau qhov tsim nyog tus nqi ntawm hashing lub zog los tua lub network tsis yog xws li qhov tsis tsim nyog kev ua

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