Hyperscalability: the Endgame

To meet web3's exponential demand, blockchains needs to scale like the Internet: processing an unlimited number of transactions without a marginal impact on security or cost. We call this property hyperscalability, and this is the ultimate goal of Era's design.

Security++

ZK-rollups like Era are the only scaling solution that can inherit 100% of Ethereum's security. But theory is not enough. zkSync is committed to go above and beyond to make Era by far the most secure L2, in practice.

A brand new Era for UX

Self-custody combined with intuitive, delightful, and security-fostering UX is critical to onboard the first billion users to web3. Era's design started with the end-user in mind.

Pushing the frontier, together.

Over 200+ projects — including Chainlink, SushiSwap, Uniswap, Aave, Argent, 1inch, Gnosis, and Curve — have registered their interest to deploy on zkSync Era.

Extensions

Fire Wallet Extension

Pocket UniverseZ

RevokeCash

What is a malicious Seaport contract?

A malicious Seaport contract occurs when bad actors build and integrate OpenSea's Seaport contract with malicious intent, leading to phishing scams that can drain your entire wallet.

How can you protect yourself from a similar attack on your NFTs?

Avoid signing messages or transactions from wallets that hold such valuable NFTs, except from a verified source like the OpenSea UI

Use separate types of wallets for different assets

Store your most valuable NFTs or NFTs you don't want to lose on a cold storage wallet

how to reverse a malicious Seaport Signature.

Step One: Go to the contract

First, you will need to go to the OpenSea Seaport contract on Etherscan/Polygonscan. Click the link to have it open.

Then, click "Connect to Web3" - you'll find it on the bottom left side of the page.

Stp Two: Scroll Down

Then, scroll down to "Increment Counter," then click "Write," and sign the signature

What happens now?

This means that by implementing the new contract, all previous listings have been deleted, including both intended and potentially harmful ones, rendering them unable to be executed.

Arbitrum & Optimism were the first traditional rollups to come to market. They're both known as "optimistic rollups."

What are Optimistic Rollups?

Optimistic rollups are a Layer 2 (L2) construction that improves throughput and latency on Ethereum’s base layer by moving computation and data storage off-chain.

Optimism uses single-round fraud proofs executed on-chain, whereas Arbitrum uses multi-round fraud proofs executed off-chain. What are Optimistic Rollups?

Optimistic rollups are a Layer 2 (L2) construction that improves throughput and latency on Ethereum’s base layer by moving computation and data storage off-chain.

Optimism uses single-round fraud proofs executed on-chain, whereas Arbitrum uses multi-round fraud proofs executed off-chain.

A Beginner's Guide to Optimism

Optimism is a fast, stable, and scalable L2 blockchain built by Ethereum developers, for Ethereum developers. With its focus on public goods, Optimism is an ideal place to start if you're interested in governance.

Cosmos is a key Layer 0. It connects different blockchains into a meta-blockchain system. On Layer 0, a smart contract on one network may execute a transaction on another. This blockchain interconnectivity is at the heart of Cosmos. Moreover, Cosmos provides a framework to build blockchain networks themselves.

divided into layers. What lies below Layer 1 blockchains are made up of stalwarts such as Bitcoin or Ethereum. Layer 2 networks comprise next-generation projects such as Aribitrum. And Layer 0 networks may be the least understood.

Cosmos is a key Layer 0. It connects different blockchains into a meta-blockchain system. On Layer 0, a smart contract on one network may execute a transaction on another. This blockchain interconnectivity is at the heart of Cosmos. Moreover, Cosmos provides a framework to build blockchain networks themselves.

Why should I use Cosmos?

Cosmos solves three primary problems in blockchain: sovereignty, scalability, and sustainability.

Sovereignty: The Cosmos SDK is free for developers and allows them to build sovereign blockchain apps without ongoing costs.

Scalability: No matter how many transactions per second a blockchain can claim, in Cosmos, developers can always improve throughput with horizontal scalability.

Sustainability: Cosmos blockchains use an efficient Proof-of-Stake (PoS) consensus algorithm for securing the network.

What is the Cosmos Hub?

The Cosmos Hub is a blockchain that serves as the economic center of Cosmos. 

The Hub provides valuable services to the blockchains connected to it, including the largest interchain token exchange, shared security through interchain security, bridges to Ethereum and Bitcoin, and secure custodianship of digital assets.

The Cosmos Hub’s primary token is ATOM.

An application-specific blockchain is a blockchain customized to operate a single application, created from scratch instead of building on top of an existing blockchain.

Examples of Appchains

Layer3 supports all app-chains and your COSMOS addresses co-relates to all the other appchains as well. 

For example, your cosmos18xyz...qae = persistence18 xyz..qae. So all your appchain addresses come under your single cosmos addresses. 

Foundation - Mainnet NFT Creation

Manifold - Mainnet NFT Creation

Zora - Mainnet NFT Creation

Welook - POAP Creation (Gasless)

Dehidden - Polygon NFT Creation + Gasless Option

OpenSea - Mainnet/Polygon NFT Creation (Gasless)

It all began with Colored Coins, where specific properties were assigned to coins, allowing them to represent digital assets like stocks, bonds, or collectibles. This concept laid the groundwork for future NFTs on Bitcoin.

2015: Spells of Genesis

This blockchain-based trading card game featured in-game assets stored on the Bitcoin blockchain as Counterparty* tokens, marking an early example of collectible NFTs on the Bitcoin network.

*Counterparty, a protocol built on the Bitcoin blockchain, enabled users to create custom tokens.

 2016: Rare Pepe

Rare Pepe, a collection of digital trading cards representing internet memes, was created as Counterparty tokens on the Bitcoin blockchain, further expanding the NFT space.

2021: Stacks 2.0

The Stacks 2.0 blockchain, connecting to the Bitcoin network, enabled smart contracts, NFTs, and decentralized applications. 

Stacks 2.0 made it easier for developers to build NFT projects on the Bitcoin network.

2022: PEPERMANENT

Artist Chainleft minted PEPERMANENT, an entirely on-chain Bitcoin NFT experiment, signaling a new wave of NFT activity on the Bitcoin network

2023: Ordinals

Ordinals introduced a Bitcoin-native mechanism called Inscriptions, which allowed users to mint on-chain NFTs more affordably than on Ethereum. 

This innovative approach sparked both excitement and controversy within the Bitcoin community.

The Ordinals Protocol

The Ordinals protocol enables the creation of NFTs on the Bitcoin network by inscribing metadata over individual satoshis, the smallest BTC denomination. This innovation offers a new, totally on-chain way to mint NFTs directly on Bitcoin.

Preparing to Mint a Bitcoin NFT

To mint a Bitcoin NFT, you will need some BTC and an Ordinals-compatible wallet, such as Xverse. 

You will also need to ensure you have enough BTC to cover the minting fee, which can fluctuate depending on demand.
Minting Ordinals NFTs with gamma.io

While Ordinals Subscriptions offer a more direct way to mint Bitcoin NFTs, using gamma.io provides a more user-friendly and straightforward experience, especially for beginners. 

Gamma.io is designed to simplify the process of minting Ordinals-style NFTs, making it an excellent choice for those new to the Bitcoin NFT ecosystem.

Cool Protocols that use NFTs in DeFi

BendDAO

Use your NFTs as collateral to borrow ETH or deposit your ETH and earn yields instantly

Uniswap 

Uniswap V3 liquidity positions are represented as NFTs.

Timeswap 

Issues their Collateralized Debt Token as an ERC-721 token, an NFT

NFTfi

NFTfi allows NFT holders to borrow cryptocurrency from lenders by using their NFTs as collateral

By tokenizing content and experiences, podcasters create new revenue streams and engage with their communities in innovative ways.

NFTs can represent anything from podcast episodes to limited-edition merchandise. They provide listeners with unique incentives and experiences, such as exclusive content or early access to episodes.

By owning a podcast NFT, listeners become part of an exclusive club. This creates a stronger bond between creators and their audience, fostering a sense of belonging and loyalty.

NFTs aren't just about collectibles! Podcasters can also use them to give listeners a voice in shaping the podcast's future through decentralized governance models.

podcasters are venturing into the world of tokenization as well

Mint Podcast with Adam Levy

Voya

Bankless Collectibles

Founded in 2014 by @RuneKek, MakerDAO introduced the first decentralized stablecoin, DAI, and revolutionized the DeFi landscape. 

But what sets MakerDAO apart? 

The answer lies in its unique governance model, where MKR token holders make crucial decisions for the ecosystem.

The MakerDAO governance model showcases the power of decentralized decision-making.

MKR token holders vote on proposals to manage the system, adjust interest rates, and maintain DAI's stability. This democratization of finance ensures a more transparent and fair ecosystem.

MakerDAO's Security and Resilience

The project's experience with external attacks, such as the infamous "Black Thursday" event, offers valuable insights into the challenges of decentralized governance and how to overcome them. Security is crucial in DeFi, and MakerDAO has proven its resilience. In response to the "Black Thursday" event, the community took swift action, approving proposals to help restore the system and maintain Dai's peg. This adaptability showcases the strength of decentralized governance. 

MakerDAO's history teaches us valuable lessons about the power and potential of decentralized governance in the DeFi ecosystem.

NFTs are a special kind of cryptoasset in which each token is unique — as opposed to “fungible” assets like Ethereum or USD.

Because every NFT is unique, they can be used to authenticate ownership of digital assets like artworks, recordings, and virtual real estate or pets.

The goal is to enable seamless communication between multiple blockchains and create a unified ecosystem in crypto.

Polkadot's Architecture

It consists of a central relay chain and multiple connected parachains. 

The relay chain is responsible for the network's security and consensus, while parachains are individual blockchains with their own unique features and use cases, connected to the main network.

Its cross-chain communication, allows different parachains to exchange information and assets seamlessly. 

This bridges the gap between isolated blockchain networks and fosters collaboration, innovation, and growth.

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