Book Summary: How not to die by Dr. Michael Greger
Should you eat Gluten-free? Is cow’s milk carcinogenic? Are Olives good for health?
Prague in Two Days
Prague, or “Praha” in Chezch, is probably the most famous city in Eastern Europe. The city boasts medical castles, museums, and quite a few quirky attractions.
This website was compromised
For 6-months, this website was compromised. I am not sure what exactly happened, but it was most likely password-reuse, which lend itself to this problem. The problem became apparent when I first noticed an unusual link to a ride-sharing service. […]
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 […]