# Blockstream Sidechain Proposal:
https://blockstream.com/sidechains.pdf
# RSK Bitcoin Mainnet Sidechain w/ Solidity EVM
https://media.rsk.co/bamboo-mainnet-beta-release-v0-4-0-is-here/
# Criticisms of Sidechain security by Peter Todd:
1. SPV proof security is weaker than full blockchain verification
2. Sidechain mining via merge mining tends towards large mining pools and centralisation
https://www.reddit.com/r/Bitcoin/comments/2424×1/peter_todd_explainins_why_sidechains_are_insecure/