🔲NFT Use cases thread.

NFT are not just jpegs...

12 more use cases:
🏀Sport
🎵Music
🗳️Voting
🎮 Games
🎫 Tickets
🏡 Real Estate
🚛 Supply Chain
🎨 Artwork Tracking
💡 Intellectual Property
🎓 School and Degrees
🏥 Patient's Health History
🍕 Authenticity of food/medicines

🏀Sport

Highlights of some particular moments can be sold as NFTs, and they can be invaluable to a fan.

The NBA is already using this mechanism extensively.
🎵Music

Some artists have already started interacting with their fans, finding new ways to monetize using NFTs, associating them with some particular activities or unique moments.
🗳️Voting

NFTs can simplify the voting process by eliminating the problem of voter identification and voter fraud
🎮Games

In the gaming world, there are many applications: recording the player's status to make the game cross-platform, simplifying the exchange process in the game.

There are also games that are based on NFTs, it will be very interesting to try them
🎫Tickets

In the future, paper tickets could disappear, and be replaced by NFTs that prove their validity, making it even easier to check
🏡Real Estate

A physical property or land can be represented as an NFT on the Blockchain. It's possible in this way to keep track of both the real estate's property and the history of the owners
🚛Supply Chain

NFTs can be used to understand the production status and shipping delivery status of a product
🎨Artwork tracking

Many works of art are actually imitations, and it is difficult to trace the old owners.

With NFTs, you can check the history of all the former owners (which could also increase the value of the object itself!) and the authenticity.
💡Intellectual Property

NFTs can be used to prove the intellectual property of discoveries, innovations, and inventions.
🎓School and Degrees

Paper degrees may disappear in the future.

NFTs can be used to iron out results as a student and to certify the status and the achievement of objectives (degrees).
🏥Patient's Health History

NFTs can be used to record a person's health history.

Thanks to the fact that this history is not editable you have a faithful list.

NFT ledgers provide a method to protect these sensitive data to make them private and not accessible to everyone.
🍕 Authenticity of food/medicines

Thanks to the fact that the history of the NFT is not editable, it is possible to verify all the movements and passages in the production process of an object, for example, food and medicine
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More from @FrancescoCiull4

Jan 17,
🔲Block Explorers thread.

What is a Block Explorer?

TLDR:
an online tool that helps us to search for data about a blockchain. think it like Google for blockchain.

IN-DEPTH:
If you want to go more in detail, here is a thread based on Ethereum docs and other online sources

Image
Table of Contents

· Definition
· Block Explorer Examples
· Why
· How to use Block Explorers
· Ethereum transparency
· Blocks Standard data
· Blocks Advanced data
· Uncle blocks
· Gas
· Txn Standard Data
· Txn Advanced Data
· User Accounts
· Smart Contracts
· Tokens
· Network

Definition

Block explorers are like a search engine for a blockchain.

They provide insight into every blockchain's aspect, by enabling to search for real-time and historical information about a blockchain, for example:
- transactions.
- addresses.
- data related to blocks.
Read 20 tweets
Jan 15,
Path to Learn Docker.

One of the questions I get most often is:
"What are the steps to learn the basics of Docker?"

In this thread, I list the 10 steps that I think are optimal for a beginner.

There are no links or promotions here, just concepts.

/thread
1) Understanding WHAT Docker is and what it isn't, what are the building blocks of it

2) Understanding what containerization is and why it is so important. Differences Containers/Virtual Machines

3) Install Docker on your operating system and make sure it works (`docker info`)
4) Take a look at "Docker Hub" and make a bit of practice using one image there (eg Nginx) and understand the basic commands: start/stop/list containers.

5) Understand how the components are made and their configuration: commands inspect/exec/logs.
Read 8 tweets
Jan 15,
🔲Ethereum Contract ABI Specification thread

What is ABI?

Good morning.

Today spent a few hours reading the Ethereum contract ABI specification and I summarized the main parts in this thread.

For further reading, refer to the official docs.

Table of contents

Basic Design
Assumptions
Function Encoding
Types
Tuples
Mapping Solidity to ABI types
Encoding design criteria
Static and Dynamic types
Contract Application Binary Interface (ABI)

It's the standard way to interact with contracts in the Ethereum ecosystem:
- from outside the blockchain
- for contract-to-contract interaction

Data is encoded according to its type

The encoding requires a schema in order to decode
Read 14 tweets
Jan 14,
🔲Blockchain Oracles

What is a Blockchain Oracle?

In a nutshell, a bridge between the blockchain and the outside world.

in this thread, based on the Chainlink documentation, I summarize the main parts to get an idea in 5 minutes.

Table of Contents:

· definition
· decentralized oracle networks
· smart-contract problem
· oracles are bridges
· oracles + smart contracts
· critical point
· decentralized oracles
· oracle types
· oracle reputation
· reputation frameworks
· oracle use cases
· conclusion
Definition

Oracles are entities that connect blockchains to external systems.

Based on the real-world input/output, oracles enable smart contract execution.

Oracles provide a way for the Web3 ecosystem to access:
- existing data sources
- legacy systems
- advanced computations
Read 15 tweets
Jan 12,
🛒NFT Marketplaces

An NFT Marketplace is a place (usually a website) that connects to your wallet.

It allows you to buy/sell NFT for different Blockchains.

Each one has its own rules/peculiarities.

Examples:
- OpenSea
- Looksrare
- Axie Infinity
- Rarible
- Decentraland

Opensea (@opensea )

Opensea is the largest NFT marketplace and the one I used to mint my first NFT.

Leader in NFT Sales and easy to use, free to sign up and support for minting.
opensea.io
Looksrare (@LooksRareNFT )

LooksRare is a community-first NFT marketplace with rewards for participating.
looksrare.org
Read 6 tweets
Jan 7,
🛑BLOCKS!

No, not the Twitter ones...
the BLOCKCHAIN Blocks.

Let's quickly see some concepts related to Eth blocks:
- definition
- blocks & transactions
- block values
- block time
- block size

DEFINITION

Blocks hold batches of hashed and encoded transactions.

Each block includes the hash of the prior block, linking the two, hence forming the chain.

This iterative process confirms the integrity of the previous block, all the way back to the initial GENESIS block.
BLOCKS & TRANSACTIONS

Transactions are batched into blocks, and they are all at once:
- committed
- agreed on
- synchronized

This is to give all the participants time for consensus.
Read 7 tweets

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