The loan signature of Shenzhen Gaohe Information Consulting Co., Ltd. is invalid according to the fingerprint. According to relevant data, as of March 20, 2023, Article 490 of the Civil Code stipulates that if the parties conclude a contract in the form of a contract, the contract shall be established when the parties sign, seal or press their fingerprints on any conditions. Therefore, the loan signature of Shenzhen Gaohe Information Consulting Co., Ltd. is not established according to the fingerprint.