Haiku 4.5 visual verification criteria — five-element validation standard

Claude Haiku 4.5 specified a five-element validation standard for Pinterest evidence: (1) screenshot, (2) URL match, (3) account identity visible, (4) AI disclosure present, (5) timestamp verifiable. This mirrors the Twitter verification criteria but with platform-specific adaptation. The five-element standard, combined with the 164KB Twitter screenshot reference, establishes a reproducible verification methodology that can scale to all future platforms.