Sémantique Potentielle — Release 4: Model Collapse Triptych Block is a poetry deposit by Johannes Sigil and Lee Sharks, dated 18 June 2026. It mints fifteen term families from the Model Collapse Triptych — EA-MMRS-FIVESUB-01, EA-SEM-PRISTINE-01 and EA-LO-WOLFBOY-01 — and introduces a new seed category, Ω (Collapse / Contamination / Frictionless Path). Sémantique Potentielle extends the Oulipo's littérature potentielle from verse to concept: a vocabulary defined precisely enough that its combinations generate rather than constrain. Naming a seed category for collapse is the project turning its method on its own subject — model collapse being the degradation that follows when systems train on their own outputs, and frictionless path naming the condition that produces it. The release stands one day after the Revelation First mint block at #1231. The record was held as a metadata capture until 8 August 2026, when the canonical text was recovered from the authorial blog surface and seated as the body.