Chain Catcher news, OpenSea announced on Twitter that it has partnered with Curio, icy.tools, and PROOF to jointly develop an open standard for NFT rarity called OpenRarity. OpenSea stated that the current rarity rankings on the market are generated by closed-source code, lack transparency, and tool providers often charge for rarity rankings, which does not provide a fair competitive environment for projects with smaller budgets.OpenRarity aims to provide a transparent and mathematically sound rarity calculation, making the calculation completely open source to ensure fairness and transparency. Developers can access OpenRarity scores and rankings via an API. It is reported that OpenRarity will launch on OpenSea next week. (Source link)