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Copy file name to clipboardExpand all lines: Introduction to Core/1. Getting Started with Core /Lesson 1 - What are we learning today.md
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So, Why Core? At the time of writing, Core has already hit [258M+ transactions on-chain](https://scan.coredao.org/) and [5M active wallets](https://scan.coredao.org/chart/active-address). Not only this, it has a strong community of [267k discord members](https://discord.com/invite/coredaoofficial) and a strong following on [X of 2.3M.](https://x.com/Coredao_Org)
Another exciting aspect is that Core is the world’s first most Bitcoin-aligned Layer 1 blockchain, meaning it leverages Bitcoin's robust security while also offering smart contract functionality. This allows Bitcoin holders to stake their coins and earn passive income, while also opening up a world of possibilities for building decentralized applications on the blockchain. Yep! I hear you, they are pretty dope and we don’t want you to miss out on them.
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If you complete this course, you will get a special NFT, a utility token, which will unlock many more opportunities on the Metaschool platform. Here is what the NFT looks like.
Copy file name to clipboardExpand all lines: Introduction to Core/1. Getting Started with Core /Lesson 2 - Introduction to Core.md
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Core is the world's first most Bitcoin-aligned layer-1 blockchain, merging Bitcoin's robust security with Ethereum's smart contract flexibility. Being "Bitcoin-aligned" means that Core leverages Bitcoin's principles and security through its unique Satoshi Plus consensus mechanism, which combines Delegated Proof of Work (DPoW) from Bitcoin miners with Delegated Proof of Stake (DPoS) that brings together the power of CORE holder and BTC holders through the ground-breaking feature of Non-Custodial BTC Staking. This innovative approach enhances security, expands Bitcoin miners' utility by incorporating them into the security of Turing-complete smart contracts, and provides miners with supplemental income in the form of CORE token rewards. As a result, Core unlocks a new realm of possibilities for developing complex smart contracts and decentralized applications.
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Why bring these two powerhouses together? Well, Bitcoin is like a fortress, virtually unhackable due to its robust proof-of-work consensus mechanism and vast network of miners. Meanwhile, Ethereum is a bustling city of innovation, where developers build amazing applications using smart contracts. Core wants to combine these strengths, creating a blockchain that's both secure and versatile enough to support the next generation of dApps.
Imagine a world where you can use decentralized financial tools that are as secure as Bitcoin or create NFT marketplaces that can handle millions of transactions without breaking a sweat. That's the kind of future Core is envisioning.
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## Features of Core
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Here are Core's key features that tell how it is ahead of its competitors:
-**Satoshi Plus Consensus Protocol:** This innovative consensus mechanism combines the security of Bitcoin's Delegated Proof of Work (DPoW) with the efficiency of Delegated Proof of Stake (DPoS) and the uniqueness of Non-Custodial BTC Staking. This three-layer approach ensures robust network security while incentivizing participation through staking rewards for both CORE and Bitcoin holders.
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-**EVM Compatibility:** Core is fully compatible with the Ethereum Virtual Machine (EVM). This allows existing Ethereum-based applications to seamlessly run on Core, opening up a vast ecosystem of dApps and tools for developers and users.
Copy file name to clipboardExpand all lines: Introduction to Core/1. Getting Started with Core /Lesson 4 - The History of Core.md
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Hey there Developers! In the last chapter, we gave you a sneak peek into the Core blockchain. Now, as blockchain enthusiasts, we know you guys are super pumped to start the building part, but as the Developer's code of conduct would dictate, one should understand the ‘why’ before they get to the ‘how’.
So, in this lesson, we will be looking into why the Core was conceptualized in the first place. So without further ado, let’s dive into the history of Core.
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-**Scalability** involves handling increasing amounts of transactions without sacrificing speed or efficiency.
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-**Decentralization** ensures no single entity controls the network, maintaining trust and resilience
Every blockchain aims to solve the trilemma, each with its unique features. This trend began with Bitcoin, the original blockchain network.
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The origin of Core is essentially one of those rare instances where a debate among friends led to something productive and by productive we mean a thriving blockchain ecosystem. According to an official tweet from Core DAO: Two friends, one an ETH Maxi and another a Bitcoin Maxi were debating the pros and cons of the two blockchains and this sparked the idea to create a blockchain that will carry the best of both chains.
Now, in case you are wondering what a Maxi is, they are essentially hardcore supporters of a particular protocol.
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However, Core differentiates itself significantly through its unique consensus mechanism called Satoshi Plus. This algorithm combines Bitcoin's [Proof of Work (PoW)](https://ethereum.org/en/developers/docs/consensus-mechanisms/pow/) with a [Delegated Proof of Stake (DPoS)](https://en.bitcoin.it/wiki/Delegated_proof_of_stake) system and Non-custodial BTC Staking. Through this, it addresses the scalability and energy concerns of traditional PoW while preserving the decentralization that is fundamental to blockchain technology.
Furthermore, Core introduces a novel hybrid score system, which factors in delegated Bitcoin hash power (PoW), delegated stake in the form of CORE tokens (DPoS) and delegated BTC through the Non Custodial BTCs staked, to determine validator selection and reward distribution. This approach aims to create a more equitable and accessible validator ecosystem. But more on that later.
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-**Permissionless Innovation:** Core is open to everyone. Bitcoin holders can earn passive income by staking their BTC, while developers can build innovative dApps on the platform. This creates a vibrant and inclusive ecosystem that benefits all participants.
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-**Unlocking Bitcoin's Potential:** Core enhances Bitcoin's functionality by providing additional revenue streams for Bitcoin miners, maximizing Bitcoin's utility and value.
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## **Wrap Up**
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## Wrap Up
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Alright! We've covered a ton about the Core’s history and its innovative approach to the blockchain trilemma. There's still much more to explore. In the coming lessons, we'll delve deeper into Core's inner workings, including its consensus mechanism, governance model, and the roles of different participants. Buckle up and get ready to discover the exciting world of Core!
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Alright! We've covered a ton about the Core’s history and its innovative approach to the blockchain trilemma. There's still much more to explore. In the coming lessons, we'll delve deeper into Core's inner workings, including its consensus mechanism, governance model, and the roles of different participants. Buckle up and get ready to discover the exciting world of Core!
Copy file name to clipboardExpand all lines: Introduction to Core/2. Understanding Core’s Architecture/Lesson 5 - Deep Dive into Satoshi Plus Consensus.md
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-**Relayers:** These participants ensure smooth communication between the Bitcoin and Core blockchain. They're essential for making sure the DPoW process works seamlessly.
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-**Verifiers:** Verifiers act as the watchdogs of the network. They monitor validators to ensure compliance with network rules and report any misbehavior, maintaining the network's integrity.
Core leverages the Delegated Proof of Work (DPoW) through its consensus mechanism for creating a powerful synergy between the Bitcoin and Core networks. Bitcoin miners, who are already securing the Bitcoin blockchain with their immense computing power (hash power), can extend their influence to the Core network by signalling their support for specific validators. This is achieved by including a special endorsement message in the coinbase transaction of the Bitcoin blocks they mine. The coinbase transaction is essentially the first transaction in a bitcoin block and the message embedded in that transaction acts as a vote of confidence for the chosen validator.
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Relayers on the Core blockchain continuously monitor the Bitcoin blockchain for these endorsements. When they detect an endorsement, they submit proof of this endorsement to the Core blockchain. This proof is then used to determine the likelihood of a validator being selected to create new blocks on the Core blockchain. The more endorsements a validator receives from Bitcoin miners, the higher their chances of being selected.
This system not only enhances Core's security by leveraging Bitcoin's established hash power but also provides Bitcoin miners with an additional source of income in the form of CORE tokens. It's a mutually beneficial relationship that strengthens both networks and fosters a collaborative environment for the growth of the broader blockchain ecosystem.
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## How DPoS Works in Satoshi Plus
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DPoS is all about giving the community a voice and control over the Core network. CORE token holders get to choose who they want to run the network by staking their tokens with their preferred validators. This is like voting in an election – the more votes (or staked tokens) a validator gets, the more likely they are to be elected to the active validator set.
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One of the most innovative aspects of Satoshi Plus is the Non-Custodial Bitcoin (BTC) Staking. It allows Bitcoin holders to join the Core Ecosystem without giving up control of their precious BTC. Instead of handing over their Bitcoin to a third party, users leverage a Bitcoin-native cryptographic feature called "absolute time locks." This is like setting a timer on your Bitcoin, locking it up for a specific period to prove your commitment to the Core network. This time-locked transaction doesn't move the BTC from your wallet but creates a representation of it on the Core blockchain. This representation, though not a separate token like wrapped Bitcoin on other chains, acts as your ticket to participate in Core's decision-making process and earn rewards in CORE tokens.
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