4. Alex Smith (CMI and UCLA): Goldfeld's conjecture, Selmer groups, and the Cassels-Tate pairing

Round-15 hunt: picked; source: course-code long-video search (r15); channel screens (sellers/exam/re-upload/devotional/vendor/events), provenance check, vendor/seller/devotional recheck and quality tier A passed; strict per-title check + final strict pass; oEmbed verified.

A 64-minute video from Ohio State RTG AGNT: “4. Alex Smith (CMI and UCLA): Goldfeld's conjecture, Selmer groups, and the Cassels-Tate pairing”.

Video by Ohio State RTG AGNT, played through YouTube's embedded player.