URL list v2 (generated by lineprocx)
Information about Blockchain
Blockchain at Wikipedia
Hashcash puzzles at Wikipedia
Client Puzzles RSA patent
Blockchain.com
GoldmanSachs presentation
Article at BlockGeeks
Introductory video at Youtube
Information about Bitcoin
Bitcoin Block Explorer
Blockchain Data API
Raw block example
Bitcoin Wiki
Bitcoin block structure
Bitcoin transactions
Transaction confirmation and double-spending
Double-spending attacks
Bitcoin addresses
Bitcoin protocol documentation
Merkle trees
Bitcoin protocol rules
ECDSA signatures
Certicom recommended elliptic curves: secp256k1 (pdf file)
Satoshi's bitcoin paper (pdf file)
Information about Ethereum
Ethereum Classic at Wikipedia
Ethereum at Wikipedia
Ethereum.org
Article at BlockGeeks
Ethereum Wiki
Ethereum white paper
Ethereum yellow paper (pdf file)
zkSNARKS in a nutshell
Ethereum Block Explorer
Block example
Information about Chia (proofs-of-space based cryptocurrency)
Chia FAQ
Asiacrypt 2017 paper (eprint version)
Asiacrypt 2017 paper (LNCS version)
Asiacrypt 2017 presentation
Eurocrypt 2018 paper (eprint version)