apresentação cadeias blocos e contratos inteligentes
TRANSCRIPT
10 Aspectos das Cadeias de Blocos e Contratos Inteligentes
“A distributed multiversion concurrency control that prevents conflicts occurring in multi-master replication”
1. CONSENSUS MODEL(S)
Other Models /Developments: Ripple Consensus, Bitshares' Delegated Proof-of Stake, Stellar'sFederated.. , Ethereum's CASPER, Hyperledger's n-out-of-m, Multichain's random (...)
2. TOKENIZATION vs "REPUTATION-AT-STAKE"
One way or another, this is the "credit" you need to deliver in order to reward validators forthe integrity of (your) data in the network. Read: Eris - blockchains without a token
3. IDENTITY AND ACCESS: PUBLIC VS PRIVATE
Recommended reading: a brief report on permissioned ledgers
4. SECURITY & CRYPTOGRAPHY
A bitcoin "home made" mining farm
(HARDWARE, ENTROPY, ENCRYPTION, MULTISIG, HASH, MERKLE TREE, SHA-256). Learn moreabout blockchain technical features, here and here.
5. GOVERNANCE RULES AND SMART CONTRACTS
Read: A simple contract modelIntersection with ricardian contracts
Governance Rules: the rules written in the software that dictate how & what operations /transactions can be validated by the network (see the "block size limit" debate). Bitcoin can
be considered a smart contract itself.
6. SMART ORACLES (AGENTS & INTERNET OF THINGS)
Check out the slides for IBM ADEPT . Watch the live presentation: Next Generation IoTTechnologies Using The Block Chain
7. SMART PROPERTY: INTEROPERABILITY &SIDECHAINS
You can have self-enforceable collateralized operations with pure digital assets or assets that are secured / monitored with the blockchain (for example, along a supply chain).
8. DAPPS: DECENTRALIZED APPLICATIONS (WALLETS,BROWSERS)
Learn more about Dapps with Ethereum programing languages
9. PRIVACY CONTRACTS (ZK- PROOFs; SECRETSHARING): PSEUDONYMOUS VS ANONYMOUS
Hawk and Enigma projects are developing "Privacy preserving smart contracts" based on zero-knowledge proofs. Watch the Hawk live presentation.
10. DAO's or DAC's: DECENTRALIZED AUTONOMOUSORGANIZATIONS OR CORPORATIONS
• Read more about DAO's, here. See examples here.