Scaling blockchain networks is a well-known pressing issue. It’s a familiar story: you want to send a transaction, but would rather wait for gas fees to come down from Mars. As solutions like rollups and bridges arrive on the scene, we wanted to create a solution that allows users to directly move ERC721 tokens across EVM-compatible chains.

The existing solutions are few, restrictive, or have a steep learning curve with regard to technical capabilities. We saw an opportunity with enormous growth potential. By building the infrastructure to allow users to freely transfer NFTs across chains inexpensively, we can help grow communities on other chains, lower barriers to minting and sending NFTs, and bring ecosystems closer together.

Enter Pooch: A simple, fun interface for NFT creators, investors, and enthusiasts to transfer their NFTs across blockchains.

Pooch is an easy and unintimidating way for users to transfer NFTs and leverage the performance capabilities of different networks. NFTs could be minted cheaply on networks with greater TPS or faster finality, and then transferred cheaply to Ethereum, where most of the action with NFTs is taking place. For dapps, adding bridges may serve as a user acquisition strategy on steroids, by being a nexus that captures organic engagement between chains.

Our NFTs are like our pooches; they’re much too cute to be left on our home chains.

----

Medium article: https://medium.com/pooch-blog/introducing-pooch-a-cross-chain-nft-bridge-dc118798b416

Figma mockups: https://www.figma.com/file/sHFKPq8tplQHMtAnYBVUuu/Pooch-NFTHack-2021

Slide deck: https://docs.google.com/presentation/d/1SmtEfZ1t00UrvWCmv2KrTO9VaqrUTFe5ZrUx32Y1KiE/edit?usp=sharing

NFTHack

Pooch

Burst is utilizing NFTs to improve exchanging multiple assets at once for DeFi participants, so that they may easily conduct basket and OTC trades.

We have developed a protocol that allows a user to create a unique basket of an unlimited number of assets (beginning with ERC20). This basket can be be used for multi-asset Over-The-Counter trades without requiring a third party holder or escrow service, as the user can instead use any available and decentralized marketplace. Any user that owns a Burst NFT can destroy it at any time to collect the underlying assets. A Burst NFT creator fee (currently set at 2%) will go back to the basket creator.

Uses cases can include 1) an institution that wants to quickly trade large quantities of assets that it could not do on current exchanges due to liquidity and slippage issues, 2) a user wants to get rid of everything in their wallet at once, rather than conducting multiple trades over potentially multiple exchanges, 3) a user wants to create a basket of assets that share a common feature and sell them at a packaged premium/discount.

As these NFTs can represent the value of any underlying token asset (including LP tokens, debt tokens, etc.) there are even more possibilities in DeFi in which Burst NFT may be built upon to derive additional value. These are to be explored.

Burst NFT

So many artwork and creative people still has no exposure to digital world, some of them maybe too focus on their artwork, some probably cant even remember where they wrote and put their email password when they need it. Many artwork have become an inheritance for generations, from the past creator or owner to their family or friend, the artwork represent history of their world, for people around their environment, even for people who only saw or heard their artwork in a magazine or in a radio. 
Digital world over the computer has evolved in to our hands, as our daily grips, to get and send information, reliable way to communicate, to a contract or signed paper needed to make agreements done between each other. This transformation has a big power for an artwork which they now can be enjoyed and appreciated across borders, across time, beyond its capacity as a physical artwork when digitalized properly. 
Any how, transforming from physical object to digital files as an object need to be done in such way that might involved a community of people with different kind of expertise, and of course, a bunch of hardware and software. A decentralized and automatic execution of smart contract that correspond to any stream of revenue from the sells of digital files created from that process can flourished the art community across the globe, around the artworks, not only just for its owner/creator, the way that will kept the value within them while spreading the beauty and excitement represented in arts.

HeavenlyJungle NFT’s

Painting masterpiece that has been created since 1996 by an Indonesian artist named Iweng (Irwan Bagja) consist of 26 different panel for a one giant painting artwork. It has been exhibited several number of times, locally and also internationally. Because its giant size, to have it up all the time and get exposure from fine art lovers, it has a downside when the owner do not own a proper space. In the end of the project of digitalize the painting and selling NFTs of it, that proper space should have the resources it need to make the painting available to the masses anytime.

HeavenlyJungle NFT's Collectibles

Generate lifelong income on your artwork by selling it under a Harberger tax ownership model where artwork is always for sale and the owner pays a constant stream of patronage to the artist.

The idea of the project is to provide an example of what a user interface might look like for Harberger assets, which are always for sale.

Radical NFTs

develop ways for measuring the recyclable garbage in order to support the circular economy as one of the Global sustainable goals for 2030 stablished by ONU, so i think it could be possible to contribute by transforming garbage into some crypto for motivating people to care about the world we are building for our future sons.

Recripcycle

Super Rinkeby Alpha is a fully decentralized game on IPFS. The game is built with Unity, exported to webgl and hosted on IPFS. The game can be played without signing in with stock characters or can be played with NFTs purchased on Rarible marketplace as ERC-1155 tokens and EthBlockArt as ERC721 tokens. To access the NFTs, users must sign a message proving that they own the account. This message is valid for 5 minutes. This novel approach does not require a centralized database nor importing private keys. The user has full control of their funds. No custodial wallet. Enjoy!

Note: This idea was built before the hackathon but there were too many vulnerabilities. Ended up scrapping the old project. This project has the same name but is a complete rewrite.

Super Rinkeby Alpha

I'm really new to developing on the Ethereum, so I wanted to use this hackathon as on opportunity to learn. 

This project is a really lightweight starter kit for building Non-Fungible Token (NFT) marketplaces on the Zora protocol. My goal was to make it really easy to developers, both inexperienced and experienced to get something up and running as quickly as possible. Using this starter kit, you will have a blazing fast website which gives you the ability to mint, auction, and showcase your NFT tokens.

"zOrbs" (short for "zora orbs") is a live demo using this starter kit which I have deployed to Vercel. There are 3 main pages:

1. Home
This is a showcase of all NFTs which have been minted by an artist of my choosing. The developer just needs to specify which token address they want to showcase.

2. Item View
Here we can a more detailed view on the NFT, such as the bidding history, and we are also able to participate in the Zora auction.

3. Minting
If you are the owner or the curator of the website, you have access to the "mint" page which allows you to mint your NFT on the Zora protocol from this page.

zOrbs

We want to make it dead simple for someone to showcase their NFT collection on a site all their own! Rodeo is a static site generator that loads up an ETH address, pulls down all the tokens, and then builds a nice-looking gallery with a theme of your choosing. Upload the site wherever you'd like!

Rodeo

Drip brings takes affiliate (referral) marketing + subscription payments from the limited legacy system and brings them into the web 3 universe.

Building on L2 (Polygon) and SuperFluid.finance, low-fee subscription payments are now possible on Ethereum.

Our marketplace allows for affiliates and influencers to generate referral links (NFTs) and earn commission in a permisionless manner. Lost and slow payments are a non-issue as the company selling the subscription and the influencer that brought them there get paid together in real time.

Bringing it all together, these cashflow NFTs are now tradeable, verified assets within the Drip marketplace, unlocking new liquidity for valuable assets of the web 3 information economy.

Drip

NFTStamps is DApp to tokenize stamps, their real-world value, eliminating issues associated with separate token issuance, and adding denomination as par value.

Stamps are a real-world asset with a proven value that can be tokenized in NFT format. Stamps have several important properties:
* They are issued by states and have a denomination;
* They are widely known as collectibles;
* They are issued in large quantities.

There are NFT stamps already available, but, in our opinion, there are still several problems associated with their release. For instance:

* Each stamp from each issued batch is a separate token.
* The cost of issuing/transferring / selling / buying such tokens can exceed the cost of the token itself several times.
* Issuing / transferring / selling a large number of stamps requires a lot of time and incurs significant transaction fees.
* Many NFTs are listed for sale on marketplaces, but are not in demand, and it is difficult to find them among the vast number of other tokens on the market.

Our application solves these issues in the following way. Instead of individual stamps, we use collections for each stamp / collection and add a denomination that can be made liquid.

Collections:

Each NFT token from a collection contains numerous separate NFT stamps. Users can store, transfer, sell and buy many NFT stamps as one token.

Users can, at any time, transform the stamp they need into a separate NFT token and use it independently.
The use of collections saves time and money spent on transferring and using NFTs separately.

Denomination:

* Each stamp has its own denomination. Users can, at any time, exchange the NFT stamp or a whole collection for ERC-20 tokens at par value.
* Users can sell these tokens on DEXs, use them in LPs (liquidity pools) and other DeFi instruments.
* They can purchase another stamp using these tokens.
* The use of par value opens up great opportunities for the use of NFTs in the DeFi sector.
 
For more information follow the link 
https://docs.google.com/presentation/d/1958Ma1SFokZCAxCjiFfF_rz3s8tQHEdEaADBYHdU45o/edit#slide=id.p

NFT Stamp Collections

Are you a celebrity? didn't think so... but if you were, you just need login with your twitter, and can start signing autographs and sending them to your fans world-wide, all without getting out of your 
jacuzzi just open the hashink app and scribble your john hancock.

do you have a fav celeb? send him an autograph request and get your autograph while he's waiting for a taxi—easy peasy lemon squeezy!

so long as we're at it... lets get celebrities to compete on who cares most about their fans with a celeb high score table and let them choose the signature background to whatever they want!

leo messi? stadium
michael jordan? basketball
snoop dog? some photo of his weed
Paris Hilton? her mini chihuahua Tinkerbell

Fans want a personalized connection with their celebs, and we’ve got that covered!
How about a personalized shout out from a celeb with a video of them signing your autograph, oh yea we’ve got that too.

Wait, there’s more? Yes! 
You know that beeple you just bought for 69M at Christies, well beeple can sign that NFT on our app and now it’s worth 100M!

Even cooler than that? Yep, we invented something called GroupSig; where multiple people can sign an NFT. Imagine you’ve got the digital cover of the Beetles album. You can send it to the entire gang and they can all sign it!
Fans can show off their autographs in a digital notebook which they can share with their friends on all their social platforms. Oh, you’re such a Show off!
celebs get to sign autographs during covid, and we get to sell our celebrity’s handwritten signature on ethereum in 10 years for millions

This process is transparent on blockchain, there’s a secondary market because we know everyone can always use some extra dough, and it’s secure for the celebs—no personalized info sent out, thus no scary stalkers.
Goodbye greedy Middleman who take 30-50% of an autograph, all that change goes into the celebs
pocket.

Hop on board as a celeb or a fan, we’ve got you covered!

Hashink

Decentreelized connects donors with farmers using Ethereum smart contracts.
Many farmers have plots of land that they cannot use for crops, and they therefore cannot make any profit from the land. There are also many people who like to help preserve the environment or to improve small communities. Donors in return receive a unique NFTree for their conservation efforts.

How is Decentreelized is different from other products that already help environment?
Because it is completely decentralized. Our smart contracts only transfer 10% of the donated funds to the farmer each year, for 10 years. During this time, farmers must send pictures to prove that donated money is being used to help the environment and preserve green areas - this ensures they receive their payment each year. If the money is not being put to good use, the person who donated can ask for a refund of the remainder of their deposit at any time.

NFTrees are resalable on secondary markets, benefitting both the donor and farmer for the increased incentive! Donors can also share the earnings from charged particles based NFT with the farmer.

Decentreelized

Digital NFT album drop platform with on-chain graphical autograph attached to album NFTs!

Album drop is done on a Uniswap pool as an IDO. Each token (1 $CRANK) can be redeemed for 1 signable ERC721NFT.

An autograph registrar smart contract that tracks the signings and store the handwritten autograph on-chain at Polygon (Matic). Signatures include text and a graphical signature that's replayable (like nifty ink).

SouljaDrop

Creatorr is a platform that allows you to get a new type of reward when donating to your favorite streamer, musician, and creatives. By donating to your favorite Twitch streamer through the Creatorr platform you will have the chance to get a unique one of a kind Non Fungible Token (NFT) in return. An NFT is an image that you truly own and is stored on the blockchain. You also have the option of selling this unique image. It is like getting a trading card or a baseball card from your favorite game or athlete. However, unlike opening a card from a pack in the store, this unique item you get directly from the creator. Using the Creatorr platform is like getting a signed card directly from your favorite athlete that is the only one in existence. Don’t worry if you aren’t familiar with cryptocurrency, the Creatorr site lets you use your credit card to donate and get rewarded. As you donate at different levels you have a greater chance of winning this unique cryptocurrency based card, but don’t worry, for every donation you get rewarded with a card. Unlike physical trading cards you can take a set of normal cards and combine them into a unique NFT which lives on the blockchain.

Creatorr

First Progressive Web App platform where users can tokenize property or trade affordable fractions of property as Non-Fungible Token and Make rental profit thanks to the Ethereum Blockchain.

The project is build by implementing @circlepay for usdc payment, @0xPolygon layer 2 to lower fees transactions fees and IPFSPinata as pinning serice for IPFS.

In the future we would like to integrate with @uniswap protocol for liquidity pool.

chronstate

NFT's are hot - and NFT's are cool. But, for better or for worse, NFT's are collectible. There needs to be a way to compose and extend NFT's so as to make them more valuable.

Imagine a baseball you grabbed at the Yankee Stadium, it's cool, it's one of a kind. That's NFTs. Now imagine that same baseball, but signed by Babe Ruth. Wow, much more cool, still the same NFT. Now imagine it signed by the entire Yankees team, WHOA! Super cool!

That's what we did for NFTs.

Inscribe is a protocol that allows anyone to add arbitrary metadata on top of existing NFTs across any chain. On this protocol, signing costs no gas, and signatures (inscriptions) can point to any valid MIME-type at any URI!

Use cases include hand written signatures, attaching trophies or badges for winning a tournament, and more!

For a specific usecase, visit our authentic handwritten signatures platform at https://inscribe.so.

Sponsor prizes: polygon

Inscribe

We were trying to make an onchain generative art project, but haven't finished it.

I've really been diving deep into generative art lately.

My feeling is that there are different degrees to which a token's value lives onchain and is thus immutable.

A self contained generative algorithm is in essence very pure. It is uniquely resilient to censorship, and relies on the intrinsic value of the underlying network itself.

It's very inline with the ethos of crypto.

We didn't have enough time to complete our main project, but we learned a lot in the process.

onchaingang

Each Sprinkle is a tiny photo frame, each meant to be super cute and something to show off.

A Sprinkle is itself is tracked as an on-chain NFT, of which the owner can select any other NFT which they also own (must be the same owning address) to display on it.

Each also includes a Secure Enclave (ATECC608A) which allows it to attest it is an official Sprinkle and verify that the photo shown is in fact owned by the owner of the Sprinkle.

Currently we only managed to finish "The Cube" (it takes 24 hours for the potting to complete, which we started 24 hours before judging begins, so it remains to be seen even if it will work ;)) and is powered by Qi wireless charging. When placed on a Qi charging pad, the NFT fetches its image from the internet, and shows it with pride.

There is also a dev-board version, which looks like a bunch of wires. This will be the focus of the demo, since once "The Cube" was potted, it was no longer able to accept firmware updates. :)

The original idea fell through, as some parts we needed didn't arrive in time. It was to be a 6" square tile, solar powered to decorate your bathroom floor or kitchen backsplash with your lovely NFTs. It's still in the works. ;)

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