• Home
  • News
  • Team
  • Projects
  • Blogs
  • Courses
  • Contact
logo-no-background

Welcome to DISCRYPT, a dynamic research group from Universitat Autònoma de Barcelona dedicated to advancing knowledge in cybersecurity, cryptography, blockchain technologies, and data privacy.

  • 935813049
  • Edifici Q, Carrer de les Sitges, 08193 Barcelona
logo-with-shadow logo-with-shadow
  • Home
  • News
  • Team
  • Projects
  • Blogs
  • Courses
  • Contact
  • Home
  • News
  • Team
  • Projects
  • Blogs
  • Courses
  • Contact
ENG
  • English

Pol Espinasa Vilarrasa

HomeresearcherPol Espinasa Vilarrasa

Short Description

PhD student conducting research at the Department of Information and Communications Engineering (DEiC) at the Autonomous University of Barcelona (UAB). My current interests are Bitcoin, the Lightning Network, and protocols built on top of Bitcoin. In fact, these are the topics I’m researching 😉. Besides the world of Bitcoin, I’m also passionate about cryptography, privacy, cybersecurity, and programming.

Links

  • Orcid
  • WebPage
  • GitHub
  • Twitter
  • Google Scholar

Publications

  • Decision Tree Based Inference of Lightning Network Client Implementations

Posts

  • How to make a transaction with UTXOs of different wallets with Sparrow
  • Grouphug - Batching transactions without interaction between users

PR

  • wallet, rpc: deprecate settxfee and paytxfee
  • rpc: print P2WSH and P2SH redem Script in getrawtransaction
  • rpc, logging: return "verificationprogress" of 1 when up to date
  • [CA] Catalan files translated (SeedSigner)

StackExchange

Questions

  • What’s the rationale for how the loadtxsoutset RPC is set up?
  • Why Bitcoin Core uses checkpoints and not the assumevalid block?
  • What criteria does Bitcoin Core use to create block templates?
  • [CA] Catalan files translated (SeedSigner)

Answers

  • Unexpected Locktime Values in Transactions on Private Bitcoin Mainnet
  • Make signed transaction invalid after specified time
  • Is my transaction in a single or multiple block candidate?
  • How can someone reverse a Bitcoin payment

Activities

  • Participant on Summer of Bitcoin 2025
  • Finalist of B4OS 2024
logo-no-background

Focused on the design, analysis, and implementation of cryptographic protocols and privacy-preserving technologies for decentralized systems.

  • Edifici Q, Carrer de les Sitges, 08193 Barcelona
  • 935813049

Sitemap

  • Home
  • News
  • Team
  • Projects
  • Blogs
  • Courses
  • Contact

Blogs

May 9, 2025
Com l’UTXO set ens pot ajudar a sincronitzar un node
April 25, 2025
Building Your Own Mainnet
Copyright @ 2024. All Rights  Reserved by Unipix