Anthropic Details Claude's Invisible Watermarking for Text and Files
socialwithaayan · x · 2026-08-11
Anthropic's official documentation reveals an invisible watermarking mechanism for Claude's outputs. It includes two machine-readable marks: an imperceptible text watermark woven into the vocabulary without altering meaning or readability, and signed provenance metadata for files like .svg, .png, and .jpg based on the C2PA open standard.
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