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2140.dev

Hello! 👋 You're on the 2140 GitHub homepage. We are a developer collective in Amsterdam, and we tend to research topics in cryptography, networking, and building new protocols. You may be interested in checking out our quests, which are research topics we are interested in, but have not yet had time to tackle.

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  1. kyoto kyoto Public

    An implementation of Bitcoin Improvement Proposal 157/158

    Rust 92 15

  2. bitcoin-capnp-types bitcoin-capnp-types Public

    Auto-generated Rust package built by Cap'n Proto schemas

    Rust 8 11

  3. bitcoin-core-fees bitcoin-core-fees Public

    Bitcoin Core Fee Rate Estimator U.I and Benchmarks

    Python 6 5

  4. swiftsync swiftsync Public

    SwiftSync node and underlying crates

    Rust 13 1

  5. hints-server hints-server Public

    SwiftSync UTXO hints served via HTTPs

    Shell 1 3

  6. quests quests Public

    Research topics in Bitcoin

    3

Repositories

Showing 10 of 26 repositories
  • kyoto Public

    An implementation of Bitcoin Improvement Proposal 157/158

    2140-dev/kyoto's past year of commit activity
    Rust 92 15 5 1 Updated Oct 28, 2026
  • bitcoin-capnp-types Public

    Auto-generated Rust package built by Cap'n Proto schemas

    2140-dev/bitcoin-capnp-types's past year of commit activity
    Rust 8 CC0-1.0 11 1 4 Updated Oct 28, 2026
  • bitcoin-address-book Public

    Bitcoin peer management system, similar to "AddrMan" in Bitcoin Core

    2140-dev/bitcoin-address-book's past year of commit activity
    Rust 0 2 0 0 Updated Oct 23, 2026
  • bitcoin-p2p Public archive

    Facilitated message exchange over the Bitcoin peer-to-peer protocol

    2140-dev/bitcoin-p2p's past year of commit activity
    Rust 7 2 2 0 Updated Oct 20, 2026
  • block-dn-client Public archive

    A client for `block-dn` bitcoin block data servers

    2140-dev/block-dn-client's past year of commit activity
    Rust 4 MIT 1 0 0 Updated Oct 20, 2026
  • hintsfile Public

    Concise representation of UTXO positions

    2140-dev/hintsfile's past year of commit activity
    Rust 2 CC0-1.0 4 0 0 Updated Oct 14, 2026
  • swiftsync Public

    SwiftSync node and underlying crates

    2140-dev/swiftsync's past year of commit activity
    Rust 13 1 1 (1 issue needs help) 0 Updated Oct 12, 2026
  • roost Public
    2140-dev/roost's past year of commit activity
    Nix 0 MIT 0 0 0 Updated Oct 2, 2026
  • flotilla Public
    2140-dev/flotilla's past year of commit activity
    Nix 0 MIT 0 0 0 Updated Oct 2, 2026
  • bitcoin Public Forked from bitcoin/bitcoin

    Bitcoin Core integration/staging tree

    2140-dev/bitcoin's past year of commit activity
    C++ 7 MIT 43,372 1 3 Updated Aug 25, 2026