Distributed ledger technology (DLT) thiab blockchain suav nrog Bitcoin thiab Ethereum tej zaum yuav muaj kev cuam tshuam ntau dua rau cov kev pheej hmoo hauv nruab nrab ntau dua li qhov pib xav, raws li Trail of Bits.
Lub tuam txhab kev ruaj ntseg rau hnub Tuesday tso tawm nws tsab ntawv ceeb toom hu ua "Puas Blockchains Decentralized?" uas tau txib los ntawm Tsoomfwv Meskas Lub Tsev Haujlwm Saib Xyuas Kev Tshawb Fawb Txog Kev Tshawb Fawb Txog Kev Tshawb Fawb (DARPA).
Daim ntawv tshaj tawm lub hom phiaj los tshawb xyuas seb blockchains zoo li Bitcoin thiab Ethereum puas muaj kev cuam tshuam tiag tiag, txawm hais tias tsab ntawv ceeb toom tau tsom mus rau Bitcoin.
Ntawm nws qhov kev tshawb pom tseem ceeb, lub tuam txhab kev ruaj ntseg pom tau tias dhau los ntawm Bitcoin nodes, unencrypted blockchain mining pas dej ua ke thiab feem ntau ntawm unencrypted Bitcoin network tsheb traversing tsuas yog ib tug tsawg tus naj npawb ntawm ISPs yuav tawm hauv chav rau ntau yam lam mus garner ntau dhau thiab centralized tswj nyob rau hauv lub network.
Bitcoin nodes
Daim ntawv tshaj tawm tau hais tias lub subnetwork ntawm Bitcoin nodes yog lub luag haujlwm loj rau kev ua tiav kev pom zoo thiab kev sib txuas lus nrog cov miners thiab tias "feem ntau ntawm cov nodes tsis muaj txiaj ntsig zoo rau kev noj qab haus huv ntawm lub network."
Nws kuj pom tias 21% ntawm Bitcoin nodes tab tom khiav ib qho qub version ntawm Bitcoin Core tus neeg siv khoom, uas paub tias muaj kev txhawj xeeb tsis zoo xws li kev pom zoo yuam kev. Nws hais tias "Nws yog ib qho tseem ceeb uas txhua qhov DLT nodes ua haujlwm ntawm tib lub software tshiab, txwv tsis pub, kev pom zoo yuam kev tuaj yeem tshwm sim thiab ua rau blockchain diav rawg."
Bitcoin node yog ib lub computer uas khaws thiab txheeb xyuas cov blocks hauv blockchain. Nodes yog siv los saib xyuas kev noj qab haus huv thiab kev nyab xeeb ntawm Bitcoin blockchain thiab ua kom pom tseeb qhov tseeb ntawm kev hloov pauv. Tam sim no version tag nrho cov nodes yuav tsum khiav yog Bitcoin tub ntxhais 22.0.
Lwm qhov kev tshem tawm los ntawm daim ntawv tshaj tawm pom tias Bitcoin lub pas dej mining raws tu qauv Stratum yog unencrypted thiab tseem ceeb tsis muaj pov thawj.
Qhov no txhais tau hais tias kev tawm tsam tsis zoo tuaj yeem ua rau "xav txog qhov hashrate thiab kev them nyiaj ntawm tus miner hauv lub pas dej" thiab "tswj Stratum cov lus los nyiag CPU cycles thiab them nyiaj los ntawm cov neeg koom hauv pas dej ua ke."
Funneling los ntawm ISPs
Cov kws sau ntawv kuj pom muaj qhov tsis zoo nyob rau hauv cov txheej txheem, raws li qhov tseeb tias Bitcoin raws tu qauv kev khiav tsheb tsis tau encrypted thiab 60% ntawm lub network tsheb hla tsuas yog peb ISPs.
Qhov no yog ib qho teeb meem vim hais tias "ISPs thiab hosting cov chaw muab kev pabcuam muaj peev xwm ua kom txo qis lossis tsis kam muab kev pabcuam rau ib qho ntawm node."
Nees nkaum rau nplooj ntawv ntawm cov ncauj lus kom ntxaws, cov ntaub ntawv thiab infographics muaj nyob hauv daim ntawv tshaj tawm. DARPA tau pib xyoo 1958 thiab yog lub luag haujlwm rau kev tsim cov thev naus laus zis tshiab rau kev siv los ntawm lub koom haum ntawm Tebchaws Meskas Lub Tsev Haujlwm Saib Xyuas Kev Tiv Thaiv thiab Asmeskas tub rog. Trail of Bits yog ib qho kev tshawb fawb cybersecurity thiab kev pab tswv yim uas tau koom nrog DARPA los tsim daim ntawv tshaj tawm.
Related: Centralized vs. decentralized digital networks: Qhov tseem ceeb sib txawv
Daim ntawv tshaj tawm los ntawm lub sijhawm nthuav dav, tom qab kev txhawj xeeb hauv nruab nrab tau hais txog Solana.
Hnub Sunday, Solana-based kev faib nyiaj rau kev lag luam (DeFi) Cov txheej txheem qiv nyiaj Solend muab tso ua ke cov lus pom zoo ntawm kev tswj hwm lub sijhawm tsom mus rau kev noj whale lub hnab nyiaj uas tab tom ntsib kev lag luam uas tau hem tias yuav ua rau muaj kev nyuaj siab rau Solend thiab nws cov neeg siv.
Lub tswv yim, uas tau dhau los ntawm ib tug whale, pom kickback tam sim ntawd los ntawm Twitter thiab tsim lwm txoj cai pov npav kom tsis raug cai rau qhov kev pom zoo yav dhau los. Cov neeg soj ntsuam tau sib cav tias qhov kev txav mus los tuaj yeem ua rau muaj kev puas tsuaj rau tag nrho cov duab ntawm DeFi raws li kev tswj hwm ntawm ib qho ntawm Solend lub hnab nyiaj txhais tau tias cov ntsiab lus tseem ceeb ntawm DeFi poob rau hauv nqe lus nug thiab thim rov qab pov npav tsis zoo dua.
Tau qhov twg los: https://cointelegraph.com/news/blockchain-isn-t-as-decentralized-as-you-think-defense-agency-report