SATPORT Docs
  • 1 Introduction and Background
  • 2 Limitations of BTC and BTC-pegged Assets
    • 2.1 Limited Empowerment of BTC Native Assets
    • 2.2 Weaknesses of BTC-pegged Assets
  • 3 Overview of SATPORT
  • 4 SATPORT Technical Architecture
    • 4.1 Hyper-Scalability Solution: zk-HSS
      • 4.1.1 Private Key Sharding
      • 4.1.2 Asset "peg-in" Solution
      • 4.1.3 "Peg-In" Process
      • 4.1.4 Asset "Peg-out" Mechanism
    • 4.2 SATPORT's Dual Security Mechanism
  • 5 satBTC
  • 6 Ecosystem Development Plan
  • 7 Exploring the Integration of ZKP with BTC Use Cases
    • 7.1 Research Direction and Planning
    • 7.2 Applications of Chain State Proofs
  • 8 RaaS Strategy
  • 9 Conclusion
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  1. 2 Limitations of BTC and BTC-pegged Assets

2.2 Weaknesses of BTC-pegged Assets

The Trilemma Among Decentralization, Security, and Composability Under Various Non-Turing Complete two-way peg Mechanisms.

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Last updated 1 year ago

To fully leverage BTC liquidity, numerous two-way peg solutions have emerged to facilitate the flow of BTC assets between the Bitcoin network and smart contract chains. However, existing two-way peg mechanisms face a trilemma among decentralization, security, and composability, making it challenging to achieve complete decentralization, high composability, and strong security for BTC-pegged assets.

wBTC - High Composability + Low Decentralization and Low Security

RBTC/LBTC - Low Composability + Low Decentralization and Low Security

sBTC - Low Composability + Relatively High Decentralization and Security

wBTC, RBTC, and LBTC rely on a single operator or a group of reputation-based consortiums to sign transactions, which introduces the risk of single points of failure or collusion. While Stacks' sBTC achieves a higher degree of decentralization with a set of permissionless and dynamically adjustable validators called "Stackers," it still faces the risk of collusion among Stackers.

satBTC - High Composability + High Decentralization and Security

SATPORT, based on its technological innovation, aims to address the aforementioned issues concerning non-smart contract chain BTC-pegged assets. It introduces a more secure and decentralized pegging of BTC, known as satBTC. SatBTC achieves a more balanced state among three core attributes. This technological breakthrough offers a more feasible solution for anchoring Bitcoin assets in non-smart contract chains, bearing significant historical and practical significance for the empowerment of Bitcoin assets.