Blockchain

2008

• shared ledger (decentralised)
  • 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. 1 ETH to SOL

• portalbridge.com[wConnect], connect MM/Phantom, approve
• ETH smart[wCore] contract: lock 1 ETH, emit event, publishMessage
• [wGuardians] 13/19 verify/sign hash -> VAA
• SOL smart[wCore] contract: VAA relayed, verifyAndExecute, mint wETH

e.g. 1 PROJECT to USDC

• mayan.finance[wConnect], connect MM/Phantom, approve
• ETH smart[wCore] contract: [wNTT] burn 1 PROJECT + emit event + publishMessage, [wSettlement] validate/lock/emit intent + publishMessage
• [wGuardians] 13/19 verify/sign hash -> 2x VAA
• Solver: watch intents (wSettlement events), [wQueries] verify state, fulfil intent, wait reimbursement
• SOL smart[wCore] contract: VAA's relayed, [wMessaging] verify sigs, [wNTT] mint to solver, [Settlement] verify fulfilment, [CCTP] native USDC

CEXs: binance, coinbase, kraken, crypto.com

DEXs: uniswap, pancakeswap, curve finance, dYdX, 1inch, raydium (sol)

wallets (hot): metamask, trust, coinbase, exodus, phantom (sol), zengo, rainbow, backpack, [walletConnect]

wallets (cold): ledger, trezor, tangem, safepal