Anthropic watermarks Claude output starting August 2026

If you draft with Claude, your text will carry an invisible statistical mark—and C2PA metadata on images—proving AI touched it.

This story ran in the Coral Wire edition of Sun, Aug 23 2026, when the Coral Index stood at 25/100 (Storm warning).

Coral Wire selects stories by a Claude-graded relevance score and writes each headline and one-line summary with an Anthropic Claude model from the linked source. Story gathering is not AI: it is a fixed set of feeds and dockets. The linked original is always the authority.

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