On January 29th, according to CryptoSlam data, the 7-day sales volume of Bitcoin's on-chain NFTs was $58,412,226, ranking second. Ethereum ranked first among public chains with an on-chain NFT sales volume of $73,464,766 in the past 7 days. Solana ranked third with an on-chain NFT sales volume of $53,736,052 in the past 7 days.