36c3 1Komona

Single-Writer Append-Only Logs
2019-12-28, 14:00–14:45, headnut

An in-depth look at cryptographically secure append-only logs, the data structures powering blockchain-less peer-to-peer protocols such as Secure Scuttlebutt, Hypercore (Dat), or Holochain.


Without requiring prior knowledge of the peer-to-peer world, we examine the fundamentals of the single-writer append-only log that forms the heart of a variety of new-ish protocols for decentralized communication. Planned topics:

  • how does the data structure work?
  • why do we care?
  • dealing with forks
  • efficient partial verification/replication