{"event":{"id":"evt-hist-phase35-bloch-constant-preprint","dedupe_key":"research_publication:2026-10-12:teng-zhang-publishes-preprint-challenging-bloch-constant-conjecture","event_type":"research_publication","title":"Teng Zhang publishes preprint challenging Bloch constant conjecture","summary":"Author claims strict bound and Lean formalization; publication verified, mathematical proof not independently adjudicated.","occurred_at":"2026-10-12T00:00:00.000Z","published_at":"2026-10-12T00:00:00.000Z","observed_at":"2026-10-18T12:30:00.000Z","reconstructed_at":"2026-10-18T12:30:00.000Z","ingest_type":"historical_backfill","locations":null,"status":"verified","confidence":0.8,"metadata":{"evidence_only":1,"global_novelty_unproven":1,"independent_outcomes_unproven":1,"original_index_position":1276},"created_at":"2026-10-19T06:05:31.695Z","updated_at":"2026-10-19T06:05:31.695Z"},"artifacts":[{"id":"art-hist-phase35-bloch-constant-preprint","dedupe_key":"6b28b682a6ba5b9fe47e7ce3e972ae65e5c342b08f5e6cc366490bb8ce67ef45","canonical_url":"https://arxiv.org/abs/2610.16808","evidence_locator":"","artifact_type":"original_publication","title":"Teng Zhang publishes preprint challenging Bloch constant conjecture","summary":"","creator_entities":[],"released_at":"2026-10-12T00:00:00.000Z","content_hash":null,"metadata":[],"created_at":"2026-10-19T06:05:31.691Z","updated_at":"2026-10-19T06:05:31.691Z","relation":"documented_by"}],"signals":[]}