## `$WHOAMI` #### Dhruvin Parikh
* Blockchain developer and Instructor * Been in this space since 2017 * Sr. Smart Contract Engineer at Hype Labs * Technical Co-Founder and CTO at opty.fi * Adjunct Blockchain Professor at York University (2020-present) * Advising web3 projects * Adjunct Blockchain Professor at George Brown College (2019-2022)
``` GitHub : @dhruvinparikh Twitter : @dhruvinparikh_ LinkedIn : linkedin.com/in/dhruvinparikh ```
## Node
* Any device connected to the distributed network * servers * computers * laptops * online or desktop wallets * mobile phones
## Byzantine fault tolerance * Possibilities were distributed systems can fail
## UTXO model
* Unspent Transaction Output (UTXO) * Bitcoin’s model for transactions * Chests (accounts) vs Piggy banks (UTXOs)