Clockchain Talk

Guilherme D. e Kalinka

Transcript

1. Blockchain Guilherme e Kalinka
5. Blockchain Transparent, safe, auditable and resistant to outages
7. Blocks, chained together. But what are those blocks? Blockchain
8. Blocks are, basically, just information grouped together. But not just any information. Blockchain
9. Inside them, you have the "real data" In the Bitcoin blockchain, those are the transactions But really any data you can imagine qualifies Blockchain
10. Along with the data, you also have a Hash. A Hash is the result of a mathematical function that, if done correctly, should be unique. It acts as a sort of fingerprint of that particular data. Blockchain
11. Meaning that if any data changes on that block It's hash also changes! Blockchain
12. And that property is particularly useful when you add another piece of data to the block The hash of the block that came before it Blockchain
13. This means that every block contains a fingerprint of the information that came before it All the way to the first block, the genesis block. Blockchain
14. Which acts as a warranty that if any information is tampered with it will disrupt the whole chain Meaning you would have to alter every block from the changed block all the way to the latest Blockchain
15. Why not just change every block then? Because of the way Blockchains work, there is a sort of "key" that is calculated for every Block It gives you the "right" to publish that Block on the chain, and takes about 10 minutes to calculate This process is known as Mining Blockchain
16. Mining block is a very cost-intensive process. Which means tampering with the blockchain costs so much money, it becomes prohibitive. Blockchain
17. And since every participant in the network also validates the information It becomes extremely infeasible to write "bad blocks" This is why the blockchain is considered a secure data structure. Blockchain
18. This data structure makes Smart Contracts possible. Smart Contracts are pieces of code written on the blockchain, in a way that they are reliable and immutable Smart Contracts
19. They pave the way for transparency, reliability and trust in a matter never before seen More on Smart Contracts soon™ Smart Contracts
20. Industries The Blockchain Will Disrupt
21. • Banking and Payments • Cyber Security • Supply Chain Management • Forecasting • Networking and IOT • Insurance • Private Transportation and Ride Sharing • Online Data Storage • Charity • Voting • Goverment and Corruption • Healthcare