proof verification

The proof verification tag focuses on the careful examination of major mathematical claims, especially when a headline or technical announcement moves faster than the available evidence. Its current coverage centers on the reported GPT-5.6 Sol result for Erdős Problem #119, which was described as a one-page solution to a long-standing problem. The discussion compares that claim with earlier published work, checks the status recorded by the authoritative Erdős Problems database, and notes that the problem remained open, with its prize unclaimed and its third question unresolved. This tag is useful for readers following whether an impressive proof has been independently established.