A股三大指数今日集体反弹，但午后涨幅有所收窄；截至收盘，沪指涨0.63%报3863点，深证成指涨 0.98%，创业板指涨1.98%。全市场成交额1.75万亿元，较前一交易日缩量2031亿元，超4000股上涨。 盘面上，培育钻石板块爆发，黄河旋风、四方达及恒盛能源等多股涨停；煤炭板块大涨，宝泰隆、郑州 煤电及宝泰集团等多股涨停；燃气股走高，国新能源涨停；CPO概念活跃，剑桥科技涨停；F5G概念、 机器人、数字水印及脑机接口等板块涨幅居前。另外，贵金属、黄金概念大跌，湖南白银、西部黄金跌 停；珠宝首饰板块走低，萃华珠宝跌逾8%；稀土永磁板块走弱，新莱福领跌；小金属、转基因及猪肉 鸡肉概念等跌幅居前。(格隆汇) | 上证指数 | 深证成指 | 北证50 | | --- | --- | --- | | 3863.89 | 12813.21 | 1429.28 | | +24.14 +0.63% +124.27 +0.98% -3.59 -0.25% | | | | 科创50 | 创业板指 | 万得全A | | 1367.90 | 2993.45 | 6156.44 | | +4.73 +0.35% +58.09 +1 ...

Group 1 - The "Measures for Identifying AI-Generated Synthetic Content" will be implemented starting September 1, 2025, requiring companies to clearly distinguish AI-generated content from real content through explicit and implicit labeling [1] - The policy is expected to drive advancements in digital watermarking technology, creating market opportunities in compliant service scenarios [1] - Companies are likely to increase R&D investments in digital watermarking technology to capture the emerging implicit labeling market driven by compliance needs [1] Group 2 - Digital watermarking technology allows for the embedding of digital information into content without affecting its visual quality, ensuring that watermark information remains intact even after editing or sharing [2] - The digital watermarking market is projected to exceed 6.5 billion RMB by 2025, with a compound annual growth rate (CAGR) of over 20% [2] - The first national standard for digital watermarking (GB/T 45909-2025) will be implemented in January 2025, providing authoritative support for AI-generated content identification applications [3] Group 3 - Several companies are actively involved in digital watermarking technology, including Hanbang High-Tech, which has developed a comprehensive application system for video, audio, and image watermarking [6] - Other notable companies include Han Yi Co., which has been researching digital watermarking since 2020, and Shanghai Steel Union, which is building a blockchain platform integrated with digital watermarking technology [6] - Key players in the AI generation field include Guotou Intelligent, Hikvision, and Dahua Technology, focusing on AI-based content verification and identification solutions [6]