Chainlink is a big step in technology.
It is first and most thought out decentralised oracle network.
Understand that Bitcoin enabled a shared history which enabled tranfer of funds (BTC) to other adresses without supervision of central authority.
Ethereum and other smart contract platforms developed upon that techology by using blockchain to create smart contracts (Bitcoin has some of those capabilities as well).
Smart contracts are automated contracts that are written on a blockchain.
Blockchain provides security, trustlessness (no third party is authorising contracts, the truth is derived from consensus of nodes) and automation.
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Providing false information is economically discouraged, since it is more profitable to abide the rules and generate revenue. Attacking blockchain requires over 50% of nodes to create "false truth".
Smart contracts are secure because the truth originates from blockchain (ie an address holds some amount of cryptocurrecy, or a token). That kind of thing enables decentralised exchanges where you can swap your tokens with another token by creating or fulfilling someones smart contract terms.
Chainlink expands on that by agregating the data from outside the blockchain and creating the closest thing to the truth that we can have at this time. The technology is still very very young, and there is a lot of uncertainties, although for someone well informed those uncertainties seems silly.
This enables smart contracts to execute upon real world data (currently mostly market price changes of assets such as crypto (which enabled the recent defi boom) and gold prices, but the data can be whatever is needed. Ie flight status for airline insurance, weather data, transport data etc.
The data has to be secure up to the standard of blockhain security, otherwise using central source of information to determine the truth defeats the purpose of blockhain, and the central entity might as well hold the contracts.
The project has numerous industry connections, the team is transparent and truthful. If you are not in LINK currently, I encourage you to DYOR, since its the only way to believe in a project. Otherwise you are chasing hype and buzzwords. There are numerous projects that will earn you money, there is incredible amount of projects on which you will loose 90% (if you are lucky).
Basic resources, how far you want to dig is up to you.
chain.link
youtube.com
twitter.com
Token not needed, BAND does everything that Chainlink can do and more. BAND has staking, BAND partnered with TRON, BAND partnered with CZ.
its so good that its creator sells 500,000 link every week and still holds more than 500 MILLION tokens
same message after like 3 years? are you retarded or paid to be retarded? go away pajeet
tahkn u op i have been requiring my hopium fix