Nationality
He is living in Europe. He is an American citizen. His parents are from Mexico. In Europe, he is an American. In America, he is Hispanic/Mexican. In Mexico, he is a Mexican of European descent.
Stanford CS251: Cryptocurrencies, blockchains, and smart contracts
Lectures Introduction Creating a Digital currency Bitcoin Overview Bitcoin Blockchain Bitcoin Mining Bitcoin Miner interactions and Game Theory Cryptocurrencies: Community, Economics, and Politics Alternative Consensus Wallet & Anonymity Anonymity on Blockchain Altcoins Ethereum Ethereum Ethereum Governance Bitcoin Side-chains (guest talk) […]
Stanford CS251: Lecture 19
Lecture 19: Advanced Topics Topic 1: Smart Property Manage ownership of some property like stocks on the blockchain. Colored coins allow arbitrary properties on Smart Contract. Similar to Namecoin, there cannot be a light node/SPV for this. Another example is […]
Stanford CS251: Lecture 18
Lecture 18: Advanced Topics Three topics are chosen by students (another three for the next lecture) Topic 1: Quantum Computing An electron has two states top and bottom spins, represented as |1> and |0>. An electron is in a superposition […]
Stanford CS251: Lecture 16
Lecture 16: Bitcoin payment channel Visa ~ 10, 000 transactions per second Bitcoin ~ 3 transactions per second => 60 GB of blockchain data per year Waiting for 6 blocks ~ 60 mins is a huge wait for Bitcoin. Therefore, […]
Stanford CS251: Lecture 15
Lecture 15: Bitcoin guest talk (Greg Maxwell & Pieter Wuille – Blockstream) on sidechains Forking does not advance Bitcoin since forks suffer from economic acceptance. UTXO model UTXO model is less intuitive, more private, and smaller persistent storage footprint. UTXO […]
Stanford CS251: Lecture 13
Lecture 13: Ethereum Code: ROM (Read-only memory) calldata: arguments There are two types of instructions: Arithmetic including SHA3 and sys operations like create [contract], call [contract], and delegate call, etc. CALL – called code is executed in the context of […]
Stanford CS251: Lecture 14
Lecture 14: Ethereum Governance When contracts call other contracts, there are four major parameters, g – gas, v – value, in – in size of inputs, out – out size of outputs. The gas must come from the initial transaction, […]
Stanford CS251: Lecture 12
Recap: alt-coins Bitcoin is a replicated state machine, the system moves within S States with I inputs producing O outputs. For Bitcoin, S is the set of UTXOs. For Namecoin, the state consists (name, value). Ethereum’s goal was to implement […]
Stanford CS251: Lecture 11
Lecture 11: Altcoins Three ways to improve Bitcoin Code update – This can update or change the P2P network Soft fork – To introduce a stricter verification for example P2SH Hard fork – transaction improvements and consensus change Altcoin = […]