币界网报道：Background information: WLFI is a crypto project of the Trump family. Its consultant announced on June 16 that WLFI has officially integrated its stablecoin USD1 into the Bitcoin Thunderbolt Network initiated by Nubit. USD1 is currently the only stablecoin running on the Bitcoin network (Tether has previously suspended the Omni version of USDT). Main events: Users can now transfer and receive USD1 directly on the Bitcoin mainnet, and can be used to purchase nodes on the Lightning Network. The in-depth cooperation between WLFI and Nubit is expected to significantly expand the application scenarios of Bitcoin in stablecoins and payment networks. USD1 deployed on the Bitcoin Lightning Network is expected to account for more than 90% of its circulation. Technical progress: On April 15, HSBC officially disclosed that the Bitcoin Lightning Network introduced UTXO Bundling and OP_CAT instructions through the mainnet soft fork, realizing native asset issuance, transaction acceleration and on-chain smart verification. Actual measurements show that the network efficiency is 1,000 to 2,000 times higher than the original chain. The network was jointly proposed by early Bitcoin miners, core developers and the Nubit team. Impact: This integration has established a fast and efficient channel for the use of stablecoins on the Bitcoin mainnet, promoting the diversified development of the Bitcoin ecosystem. Bijie.com is paying attention to the progress of this technology.