Edited By
Alice Mercer

In a bold move for legacy tokens, a new fully onchain orderbook has been launched, addressing the trading challenges faced by Ethereum's oldest tokens. This orderbook allows for improved trading infrastructure, particularly for those that predate the ERC-20 standard.
Back in February 2016, Alex Van de Sande from the Ethereum Foundation introduced what are now considered pioneering tokens: Unicorns and Unicorn Meat. These tokens, created before the ERC-20 standard became prevalent, enabled the first onchain token swap through the Grinder Association DAO. Despite their experimental nature, these tokens have remained functional and are still held by many people, continuing to defy expectations.
Tokens like Unicorns and Unicorn Meat face significant issues in today's decentralized exchanges (DEXes) because they utilize 0 decimal places and non-standard transfer functions. This lack of compatibility particularly affects popular platforms like Uniswap, which cannot effectively handle these unique tokens. As a result, many people find trading these older tokens frustrating and often unsuccessful.
"Trading infrastructure for these legacy tokens has lagged far behind, limiting their usability," said a community member.
This new orderbook, termed Unicorn Market, comes as a solution to these long-standing issues, offering:
No backend involvement: Pure smart contract technology
Escrowed limit orders: Ensures tokens are only held in contract until they are filled or canceled
Partial fills: Flexibility in trading portions of larger orders
Deterministic rounding: Utilizing OpenZeppelin's ceiling rounding prevents losses during trades
These features have garnered positive interest among community members, suggesting a shift toward more accessible trading options for the holders of these tokens.
User feedback reflects a mix of excitement and relief. One commenter stated, "Finally, thereโs a dedicated platform that respects these legacy tokens." Another noted the difficulties they had faced previously, explaining, "I struggled to trade my tokens on current platforms. This is a game changer.โ
โ A notable shift for pre-ERC-20 tokens now facilitates trading.
โณ Addresses issues from legacy tokens that have persisted for nearly a decade.
๐ "This sets a new standard for how we handle unique tokens," a leading community voice stated.
With this new development, will trading these historic tokens become a breeze? The Ethereum community is certainly hopeful.
Thereโs a strong chance that more trading platforms will adapt to accommodate these unique tokens as Unicorn Market gains traction. Experts estimate around 60% of remaining legacy token holders could transition to this orderbook in the next year. Given the ongoing evolution of decentralized exchanges, improvements in trading infrastructure are likely to follow, potentially leading to increased liquidity for these often overlooked tokens. With the positive sentiment surrounding this new platform, we may also see more developers creating solutions specifically for pre-ERC-20 tokens, enhancing the overall trading experience.
This situation harkens back to the early mobile phone days in the 1990s. Back then, businesses aimed to improve communication but faced limitations due to incompatible technologies. Just like Unicorn Market addresses the legacy issues in Ethereum's trading landscape, companies began developing standardized protocols to enable seamless communication across different devices, changing the mobile landscape forever. The evolution seen in mobile technology serves as a reminder that addressing foundational issues opens doors for rapid advancements, paving the way for an infrastructure that many people can rely upon.