Node
Update shuda Aug 20, 2026 Node ek computer hai jo transactions aur block data ko mukammal system mein mehfooz karne, us ki tasdeeq karne ya aagay muntaqil karne ke liye
blockchain se jurta hai.
Kiun keh blockchain taqseem shuda hoti hai, is liye yeh ek wahid markazi server ki bajaye bohat se nodes par inhisar karti hai. Misal ke tor par
Bitcoin: yeh network duniya bhar mein phailay hoay hazaron nodes par mushtamil hota hai, aur yehi cheez is ke
peer-to-peer, decentralized design ko support karti hai. Har node ek communication point ki tarah kaam karta hai jo network ko chalane aur hum-aahang rakhne mein madad karta hai.
Mukhtalif iqsam ke nodes mukhtalif khasoosiyat ke zimmedar hote hain. Bitcoin ko ek reference ke tor par istemal karte hue, nodes aam tor par kuch baray groups mein shumar hote hain:
Full nodes: Yeh transactions aur
blocks ko network ke qawaed ke mutabiq download aur un ki tasdeeq karte hain, jin ko
consensus algorithm ke zariye lagoo kiya jata hai. Yeh blockchain ko mehfooz karne mein madad karte hain aur network ke liye intehai eham samjhay jate hain.
Listening nodes (supernodes): Yeh aese full nodes hote hain jo aam tor par sab ko nazar aatay hain aur qabil e rasai hote hain. Yeh dusre nodes ke sath rabta kar sakte hain aur aksar blockchain data ko aagay muntaqil karte hain, yani rabtay ke pul ka kirdar adaa karte hain.
Mining nodes: Yeh mining software chalate hain aur, aam tor par, khaas
ASIC istemal karte hoay
block reward hasil karne ke liye muqabla karte hain. Solo miners aam tor par full nodes chalate hain, jab keh pool miners poori blockchain mehfooz kiye baghair computing power faraham kar sakte hain.
Lightweight (SPV) clients: Yeh blockchain istemal to karte hain lekin mukammal tor par us ki tasdeeq nahi karte. Yeh supernodes se maloomat hasil karte hain aur communication endpoints ki tarah kaam karte hain, is liye na to yeh chain ki mukammal copy rakhte hain aur na he barah e raast network ki salamti mein kirdar ada karte hain.
Nodes he blockchain ko decentralized aur mazboot banate hain. Nodes ka ek wasee taqseem shuda set hai, khaas tor par
full nodes, kisi bhi wahid party ke liye network ko tabdeel karne ya transactions ko censor karne ka mushkil bana dete hain, kiun keh bohat se khud mukhtar sharakat daar data ki ek copy ko hold bhi karte hain aur us ki toseeq bhi karte hain.
Nodes jitne ziada mukhtalif jaghon par aur mukhtalif tareeqay se kaam karte hain, network utna ziada mazboot hota hai. Ye taqseem blockchains ke ek markazi idaare ke baghair kaam karne ki eham wajah hai.