Layer1: Sybil-control
PROOFS OF SPACE AND TIME
Slide
Proof of Honesty: Coalition-Proof Blockchain Validation without Proof of Work or Stake
John P. Conley (Vanderbilt University)
Technical white paper of
GeeqChain
Proof-of-Prestige: A Useful Work Reward System for Unverifiable Tasks
MichaĆ Krol, Alberto Sonnino, Mustafa Al-Bassam, Argyrios Tasiopoulos, Ioannis Psaras (University College London)
Proof of useful work