Non-Interactive Proofs of Proof-of-Work

@article{Kiayias2020NonInteractivePO,
  title={Non-Interactive Proofs of Proof-of-Work},
  author={Aggelos Kiayias and Andrew K. Miller and Dionysis Zindros},
  journal={IACR Cryptol. ePrint Arch.},
  year={2020},
  volume={2017},
  pages={963}
}
Decentralized consensus protocols based on proof-of-work (PoW) mining require nodes to download data linear in the size of the blockchain even if they make use of Simplified Payment Verification (SPV). In this work, we put forth a new formalization of proof-of-work verification by introducing a primitive called Non-Interactive Proofs of Proof-of-Work (NIPoPoWs). We improve upon the previously known SPV NIPoPoW by proposing a novel NIPoPoW construction using superblocks, blocks that are much… 
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