[칼럼 요약] 블록체인은 이데올로기 싸움이다.

출처: 블록체인은 이데올로기 싸움이다(Ideological battle over Blockchain)

 

• 블롯(Bloat)
  • Blockchain bloat refers to the phenomenon where the size of a blockchain grows rapidly over time, resulting in increased storage requirements, longer synchronization times, and higher transaction fees. The bloat is often caused by the accumulation of data, such as transaction history and smart contract code, on the blockchain.
  • To address the problem of blockchain bloat, some blockchain networks have implemented various solutions such as pruning, which removes old transactions or blocks that are no longer relevant, or sharding, which divides the blockchain into smaller sections to improve scalability.
    • Pruning is a technique that removes old and unnecessary data from the blockchain to reduce its size. For example, it can remove transaction data that is no longer needed or block data that has been validated by the network. This can free up storage space and make the blockchain more efficient.
    • Sharding is another technique that divides the blockchain into smaller, more manageable parts. Instead of having one large database, the blockchain is split into smaller pieces, or "shards," each of which can be managed separately. This can improve scalability and reduce the burden on individual nodes in the network.
• 붉은 여왕 효과(Red Queen Effect)
  • The Red Queen Effect is a term used to describe a phenomenon in which individuals or systems must constantly adapt and evolve just to maintain their current position relative to others who are also adapting and evolving.
  • Overall, the Red Queen Effect highlights the importance of constant adaptation and evolution in order to remain competitive and survive in a rapidly changing environment.
• 비트코인 맥시멀리스트들이 주장은 "네트워크 효과"
  • 비트코인이 10년 넘게 쌓아온 네트워크 효과를 따라 잡을 수 없다는 것
• 효율성(Efficiency) 측면에서의 블록체인의 발전
  • 비트코인 채굴(Proof of Work)의 비효율성을 극복하기 위하여 채굴이 필요없는 동의 알고리즘을 개발함
  • Ownership 기반으로 Sybil 공격을 막는 POS(Proof of State), 101명의 선출자가 블록을 생성하는 DPOS(Delegated Proof of Stake) 등
    • Sybil 
      • Sybil attack refers to a situation where an attacker creates multiple fake identities or accounts in order to gain control over a network or system.
• 확장성(Scalability) 측면에서의 블록체인의 발전
• 탈중앙화(Decentralization)와 분산화(Distribution)
  • 탈중앙화 : 중앙적 권력을 분산시키는 것을 의미
  • 분산화 : 서버 또는 노드를 분산
    • 비트코인 : 탈중앙화 + 분산화된 시스템 (Permissionless Protocol: 무허가형 프로토콜)
    • 리플 : 수신자의 허락을 필요없지만 거래 증명자(Gateway)의 허락을 받아야하는 반 중앙화 프로토콜(Semi-permissionned protocol)
• 전통 은행과 탈중앙화
  • 블록체인을 이용하여 비용을 줄이고 거래를 더 효율적으로 만들고 싶어함
  • 다만, 모든 금융활동을 모니터하고 자본을 통제하고 싶어하기 때문에 거래 증명자와 송수신자가 모두 허락해야하는 시스템을 구축
    • 거래 증명자 : 은행
    • 송신자, 수신자 : KYC(Know Your Customer) 필수요소 과정을 거쳐야함.
    • 허가형 프로토콜(Permissioned protocol)