Crypto projects are evolving. Sometimes they rotate. Sometimes they die. And sometimes it comes full circle. This is the story of Cryptodate– an NFT project that was deployed to the Ethereum mainnet in June 2018, making it older than 99% of existing NFTs.
2017: The world discovers digital cats
If you paid attention to crypto in late 2017, you’ll remember the moment CryptoKitties launched and promptly clogged the entire Ethereum network. Gas prices spiked. Transactions were backed up for hours. And suddenly this obscure concept of “non-fungible tokens” had a use case that people could wrap their heads around: unique collectibles. The ERC-721 standard was still in its final stages, but it was clear that there was digital scarcity. Provable ownership of unique assets on a public blockchain was real. And where there are collectibles, there is commerce.
Building a marketplace
A small team saw what was happening and realized that people wanted to trade these things, and they needed a place to do it. So they started building an NFT marketplace. They bought the domain Etherbay – yes, Etherbay – because why not. The concept was simple: create a secondary marketplace where people could list, auction, and buy NFTs. This was before OpenSea had any real traction, before anyone knew what the market would look like or how the technology would work. They were figuring it out as they went.
They needed their own NFT
Here’s the thing about building a marketplace: you can’t develop listing flows, transfer mechanisms, and auction logic without actual assets to test with. The team didn’t want to rely on CryptoKitties or anyone else’s NFTs. They needed something they could control, something simple enough that they could focus on the market mechanics without being distracted by complex game logic or breeding algorithms. So they started thinking about what kind of NFT they could create that would serve as a test case but also stand on its own as a legitimate project.
The idea they landed on was Cryptodate. The concept is simple: each calendar date is a token ID. July 4, 1776 becomes token ID 17760704. The Bitcoin Genesis block will be released on January 3, 2009 20090103. Your birthday, your anniversary, the day you met someone: each number is linked to an eight-digit number, and each number can only have one owner. One date, one NFT, forever. That’s the whole thing.
The team liked this idea for reasons beyond just a test NFT. Most NFT projects rely on off-chain data: the token ID is on Ethereum, but the actual content (the image, the metadata) is on a server somewhere. If that server goes down because someone hasn’t paid the bill, the NFT points to nothing. And IPFS isn’t exactly a guarantee. Collectors can easily own a receipt for something that no longer exists.
The Cryptodate team has never liked that approach. If you’re going to put something on the blockchain, put it on the blockchain. Cryptodate has solved this elegantly: the token ID is the date. There is no image to host, no metadata server to maintain, no dependency on external infrastructure. The date is the NFT. Completely on-chain, completely self-contained and permanent for as long as Ethereum exists.
The Cryptodate smart contract was deployed on June 24, 2018—block 5,841,428. This was nine days after ERC-721 was officially completed.
Etherbay dies, Cryptodate lives
And then the marketplace project fell apart. It turns out eBay’s lawyers have no sense of humor about domain names. A cease and desist letter arrived, and suddenly the clever branding was a problem. The team could have been renamed, but at that point the competitive landscape was changing. OpenSea gained traction and had more resources. Between the legal pressure and market dynamics, they made the call to shut down Etherbay. The timing wasn’t right, the name was legally radioactive, and there were other things going on.
But Cryptodate had already been deployed. The contract was right there on the mainnet, quietly existing. A simple site went to a place where anyone could mint for a small fee, and then the team went on with their lives. They didn’t market it, they didn’t build a community around it, they didn’t do any of the things you should do with an NFT project. It just existed.
2022: The DeFi Detour
Fast forward four years. The DeFi summer was over and the entire landscape looked different. Layer 2s proliferated: Arbitrum, Optimism, Fantom, Moonriver, and dozens of others promising low-cost transactions and Ethereum security. The Cryptodate team had enough bandwidth to experiment again, after spending the intervening years on other projects.
Then they had what seemed like a bright idea: yield-bearing NFTs. The concept was to pair an NFT with an ERC-20 token that generated interest, combining the collectibility of NFTs with the passive income mechanisms that DeFi users loved. They built an ERC20 Cryptodate token (CDT) tied directly to the NFT. They extended the Cryptodate ERC721 contract to support the concept of yield-bearing NFTs so that holders would earn CDT as interest. A percentage of the ETH from each NFT sale went directly into the CDT liquidity pool, making the CDT valuable without gimmicks. The contracts contain some technically sound ideas and can still be viewed Github for those who are curious about the approach.
The team deployed the “new” Cryptodate on multiple Layer 2s. They embraced where NFTs had gone in the intervening years: works of art, generative collections, the whole playbook. They collaborated with artists to create SVG collections for each date, including a “Cryptopupper” series featuring genetics.
The pivot gained some traction, but the project never really got off the ground. The revenue-bearing NFT concept may have been too complicated, or the timing was wrong, or the marketing just wasn’t hitting home. That’s life in crypto: most things don’t work, and you learn what you can from experience.
2026: Back to basics
Here in 2026, the landscape has changed again. Layer 2s are consolidating as Ethereum makes progress in scalability. The NFT market has shrunk hard: most of the projects from the 2021-2022 boom are dead, their Discord servers are at a standstill, and their OpenSea pages are gathering dust. The projects that survived tend to share certain characteristics: conceptual clarity, real scarcity and verifiable provenance. It turns out that Cryptodate has all three.
So the team made a decision: take it off again. They removed the revenue-bearing NFT mechanisms, which were never implemented on the Ethereum mainnet anyway. They stopped Layer 2 deployments. They dropped the CDT token. What remains is the original value proposition from 2018: own a date. One NFT per date, completely on-chain, from one of the oldest NFT contracts on Ethereum.
With that in mind, the team created the frontend-dapp. The rebuild is a clean break: Next.js 14, TypeScript, Tailwind CSS and shadcn/ui for the component library. For wallet connectivity and contract interaction, they use wagmi and viem, which have become the de facto standard for Ethereum frontend work, replacing the outdated ethers.js/web3.js patterns.
The architecture has been deliberately kept minimal. No multi-chain support. No token swaps. No expansion mechanisms. Simply: connect wallet, choose date, check availability, coin. The contract itself has not changed; it is the same code that has been at the same address since block 5,841,428. Only the front end had to be modernized.
For collectors interested in historic NFTs – the kind who own early CryptoKitties or Curio Cards or have an opinion on which projects deserve to be included Leonidas’ timeline—Cryptodate might be worth checking out. The project has been around for eight years and is quietly waiting to be rediscovered.