Revision history

2026-01-11: Document created.

Core Paper

Proof of Work

Review and research on Proof of Work blockchains

Some notes on Proof of Work blockchains.

On this page

  • Kulupu: Kulupu is a proof of work blockchain with on-chain governance and online upgrade.
  • Mining as lottery process: Mining should be considered lottery process, but not professional for-profit process.
  • Decentralized mining pool: This article explores a specification for a decentralized mining pool implemented in Kulupu’s protocol level, assuming signed mining.
  • Sedbin: Sedbin is a concept of proof of work blockchain with shared security. Similar to merge mining, it allows multiple blockchains to use the same source of PoW, thus increases the security and better protects against 51% attack. Sedbin, however, has a smaller seal size, and requires much less logic changes to participating blockchains. It also enables security sharing for three or more blockchains, instead of just two in the situation of merge mining.
  • Signed mining: This article discusses the idea of signed mining, which tries to provide a safe construct with a high degree of delibration, in a Proof of Work blockchain system.
  • Effective total supply: Effective total supply is a concept of total supply with consideration of fee market. Kulupu currently has an effective total supply of 75 million KLP, after referendum #26 has passed.