Blockchain

2008

• shared ledger (decentralised)t
  • originally for Bitcoin: A Peer-to-Peer Electronic Cash System ✅ Explained
• immutable (tampering hard/expensive/visible)
• like singly linked list
  • pointer/ref to next node crypto hash of prev block

• Blockchain and the General Data Protection Regulation
• Alternative Uses for Blockchain - Computerphile

e.g. transfer tokens

• portalbridge.com
• 1 ETH to SOL, connect MM/Phantom, approve
• ETH wormhole smart(core) contract: lock, emit msg payload
• 13/19 guardians verify/sign hash -> VAA, relayed
• SOL wormhole smart(core) contract: verify, mint wETH