Native Signature: A Game Changer for Bitcoin Layer-2 User Experience

LumiBit
3 min readApr 26, 2024

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For several years, developers have been working on developing and fostering an ecosystem of technologies, applications, tokens, and even layer-2 chains for Bitcoin (BTC) — essentially introducing decentralized finance (DeFi) to the flagship cryptocurrency.

Bitcoin’s layer-2 ecosystem has grown significantly over the last two years, yet specific issues hinder its progress. One is the ongoing complexity of using various wallet and signature schemes, which leads to a disjointed user experience. In other words, the different wallet solutions and combinations create poor user experience (UX). This fragmented framework lacks the native BTC experience that users are accustomed to and impedes the adoption of layer-2 stacks.

How LumiBit’s Native Signature Feature Enhances Native BTC UX

Blockchain interaction hinges on addresses, which facilitate token transactions and on-chain actions. Due to distinct address-generation methods, traditional solutions necessitate managing separate addresses for BTC and Ethereum Virtual Machine (EVM) compatible networks.

  • EVM Address — Following Ethereum’s specifications, EVM addresses are 40-character hexadecimal strings prefixed with “0x.” Generated from a 256-bit private key, they undergo hashing and formatting to produce the final address.
  • BTC Address — Adhering to standards like Legacy, SegWit, and Taproot, vary in formats such as P2PKH, P2SH, or Bech32. Despite differences, EVM and BTC addresses stem from the same secp256k1 public key, ensuring compatibility.

Following the logic in the statement above, the idea would be to reduce friction and consolidate a better UX by making transactions more straightforward to execute and funds easier to manage and move cross-chain. Here’s where LumiBit’s native signature kicks in. This feature allows users to interact with the LumiBit network using the same signature process as Bitcoin, enabling a more swift, user-friendly experience than other Layer-2s on Bitcoin.

In simple words, LumiBit eliminates the need for additional EVM wallets or managing separate addresses for interaction between the BTC mainnet and L2 because users can simply interact on LumiBit’s L2 using their standard BTC mainnet address, enhancing usability and consistency across all parties involved.

It employs a robust technical architecture comprising Public Key Translation and Address Encapsulation. Public Key Translation facilitates the mutual mapping of BTC-EVM addresses, while Address Encapsulation ensures interoperability between BTC and EVM addresses. This architecture streamlines user interactions and maintains consistency.

To summarise, LumiBit’s native signature facilitates the cross-chain transfer process thanks to its technical structure:

  • Public Key Translation: Ensuring mutual mapping of BTC-EVM addresses.
  • Address Encapsulation: Facilitating interoperability between BTC and EVM addresses, simplifying interactions.

In conclusion, LumiBit’s Native Signature significantly advances BTC’s layer 2 usability. By seamlessly integrating with BTC’s native functionality and streamlining user interactions, the platform enables broader adoption and usage of layer 2 technologies. With this approach, LumiBit bridges the gap between BTC mainnet and layer 2s, potentially fostering the widespread adoption of Bitcoin layer 2 solutions.

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