In the talk we demystify blockchain and cryptocurrencies, analyzing what is really behind this light and sound show. Disassembling one of the most popular platforms currently on Ethereum and analyze the keys to its operation, costs and metrics.

1. Rubén Chavarri
Software Engineer
@pekewake
David Chavarri
Software Architect
@dvdchavarri MAD · NOV 23-24 · 2018

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MAD · NOV 23-24 · 2018

3. 3,000 coins
200 exchanges
$335 billions max market cap
$640 billions cryptos losses
$9 Million a Day Is Lost
3,470 ICOS
The Hype

4. Why
FoMo Effect Scarcity Principle
&
Blockchains makes
fundraising easier.
You can’t miss out
...but we are not there yet
Monetary system of
scarce tokens
“Apps as economies”

5. ICOs
Bitcoin
Crypto investment
SCAMs
Speculation

6. Bitcoin
Crypto investment
SCAM
ICO
Speculation
Smart Contracts
Cryptography
Inmutable
Scalability
Transparency
Ownership
Decentralization

7. Crypto investment Blockchain Cryptoassets

8. NOT
Three Questions you should ask
● Is immutability needed?
● Are there multiple entities involved?
● Do they trust each other?

9. FoMo Strategy
No whitepaper or Roadmap
Centralize all transactions
Fiat money model
NOT blockchain neither

10. Blockchain gets Real

11. First massive ethereum game
kitty marketplace
Crypto Collectable
Digital Asset

14. commitkitties account: https://rinkeby.etherscan.io/address/0x6352d0d7d225d296ea43c5a2e65686b0d13fdcc3

15. The reality behind the scene
● Decentralize architecture
● Interact with my own wallet
● Transaction cost
● Consensus time

16. APIDApp
SmartContract
Wallets
Kitties
Auctions
Ethereum solidity
CommitKitties architecture
history
new users
profile
Events
Blockchain

19. CommitKitties DevOps
Develop Prod
Simulation
Parameters
Predictable
Free
testnet and mainnet
Slow (10-20 seg)
Facets and gas
Monitoring

20. Buy a Kitty: Where the money goes

21. Buy a Kitty: better in euros (at 115.34€ p/ ether)

22. App vs DApp
● Deployed in cloud / machines
● Pay the infrastructure
● Process timing
● Marketing
● Deploy in Blockchain
● Pay by transaction
● Consensus timing
● Platform Reputation/Trust

25. Financial
● Cross-border payments
& trade finance
● Less intermediaries &
geo agnostic
Example
90% banks of Australia,
Europe & N. American are
already experimenting
Public Sector
● Record-keeping and
verification
● Public data
● Digital identity
Example
25 governments actively
running pilots
Healthcare
● Data availability and
exchangeable
● Admin. efficiency
● Medical research Adv
Example
Data patient control &
commercial access

26. Don’t buy the Hype!
but do buy into the blockchain opportunities
● From company to ecosystem evolution
● Decentralized business models
● New relations based on trust
● Sharing economy
● Privacy awareness

27. Thanks
Questions?

28. Rubén Chavarri
Software Engineer
@pekewake
David Chavarri
Software Architect
@dvdchavarri

29. Resources:
Hype:
https://medium.com/swlh/dont-buy-the-blockchain-hype-3eae869e2de0
https://www.marketwatch.com/story/the-round-numbers-that-show-just-how-far-bitcoin-has-come
BlockChain?
https://www.forbes.com/sites/forbestechcouncil/2018/09/11/10-questions-to-ask-before-you-use
https://medium.com/swlh/dont-buy-the-blockchain-hype-3eae869e2de0
How Criptokitties works?
https://medium.com/loom-network/how-to-code-your-own-cryptokitties
https://cryptocurrencyhub.io/the-cryptokitties-economy-83c18ca07cd8
CommitKitties:
web: https://commitkitties.com
dapp: https://github.com/Twiinlab/commitkitties-app
api: https://github.com/Twiinlab/commitkitties-api
contracts: https://github.com/Twiinlab/commitkitties-contracts
Where to find Blockchain?
https://www.mckinsey.com/business-functions/digital-mckinsey/our-insights/blockchain-beyond-the-hype
http://www.grantthornton.com.mt/service/technology-advisory-services/blockchain-technology/