Odaily Planet Daily News According to mempool data, the transaction fee of Fractal mainnet has soared to more than 40 satoshis/byte, and the high priority fee has soared to more than 100 satoshis/byte. It is reported that today a team launched a new UTXO-based token protocol on Bitcoin, called the Covenant Attested Token (CAT) protocol, which has multiple features such as no indexer, modularity, programmable casting and cross-chain interoperability. The CAT Protocol can run on any Bitcoin-compatible blockchain that activates OP_CAT. The community infers that this may be the main reason for the surge in Fractal mainnet transaction fees.