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Sidechains & Layer Two's (ETH)

Layer 2's and Sidechains are both scaling solutions for Ethereum, but they function differently. We will go through both, examples, and finally how they apply to NFTS :) This does get super technical (though I tried to simplify as much as possible). NFT tutorials are at the can be found at the bottom section: NFTS ON SIDE CHAINS AND LAYER 2's


An ETH sidechain is a separate blockchain that runs independent of Ethereum and is connected to Ethereum Mainnet by a two-way bridge. Side chains have their own technology and protocols. Side chains are new, independent blockchains with their own technologies, protocols, roadmaps and missions.

On a tech level, some core differences of ETH Side chains are

  • Side chains DO NOT rely on Ethereum for consensus mechanisms

  • Side chains do not have to adhere to Eth block times & sizes

These differences allow for faster and cheaper transactions, but can have implications that lower the level of network security and decentralization.

From Ethereum(dot)org:

LAYER 2's:

Layer 2 (L2's) are also separate blockchains used for scaling solutions, built to extend the existing technology. ETH L2's rely on the same protocol's to maintain the same level of decentralization and security as ETH. L2's transact offchain, and send the info to L1 (similar to side chains, they maximize efficiency & cost effectiveness, without losing the integrity of ETH!

ROLLUPS - Rollups are the preferred type of ETH L2's. Rollups bundle (or ’roll up’) hundreds of transactions off chain into a single transaction on layer 1, which is how they help reduce gas fees. Since all this info is still Rollup transactions get executed outside of layer 1 but the transaction data gets posted to layer 1. By posting transaction data onto layer 1, rollups inherit the security of Ethereum. There are two different approaches to rollups: optimistic and zero-knowledge - they differ primarily on how this transaction data is posted to L1.

OPTIMISTIC ROLLUPS - True to its name, Optimistic Roll-Ups are essentially "innocent until proven guilty". Transactions are assumed to be valid, but can be challenged and handled accordingly if a false transaction was submitted

ZERO-KNOWLEDGE (ZK) ROLLUPS - ZK Rollups use "validity proofs", so when they submit data to L1, there is verifiable info that the transactions are correct!

There are a bunch of core differences, which are summed up below. This is really technical, so no worries if not all of this applies to you :) Now lets get into examples and how these apply to NFTS

image from 101 full article can be found here


  • Polygon POS

  • Skale

  • Gnosis Chain

  • Loom Network


Optomistic Rollups

  • Arbitrum One

  • Optimisim

  • Boba Network

ZK- Rollups

  • Loopring

  • zK Sync

  • zK Space

  • Aztek

  • Polygon - Hermes ZK-Rollup


Polygon POS!

You can mint and buy NFTS on Polygon POS on Many of the Platforms that you can mint and buy ETH NFTS on (more on THE ABC's of NFTS). Right now, for Sidechains, this is probably the most popular!!

I also have a ton of videos on Youtube re: Polygon NFTS :) as well as go over these in The Abcs of NFTS


Mintplex is going to be its own separate tutorial. There are honestly more functions than Manifold, but it is pretty comparable and covers all the chains listed below. I found this last night and was able to mint my own contract + a token + a mint button for my own site! In true degen transparency it is 4:42 AM and I started this guide at 6:00 PM so stay tuned for more on this week!

THAT SAID I MADE MY OWN MINT PAGE SO CLICK IT!!! waiting on a few clarifications BUT



Optimisim has a large NFT Ecosystem, and you can see more here!

You can also Mint Optimisim NFTS on Nifty Kit, Tutorial Coming Soon


To get set up on the network, see below! Minting NFT tutorial coming soon via mintplex :) BUT START HERE

Okay if anyone made it this long, you are a rockstar! Sub and you will get a Notifcation when I update this!!!


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