Unverified50% confidenceFactExact time
图片嵌入元数据的技术基础来自PNG格式的tEXt或iTXt信息块（Chunk）规范，允许写入任意键值对形式的文本元数据而不影响图像显示
1
Sources
50%
Confidence
Long-term
Relevance
7/21/2026
First Seen
Sources
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