4.5 ลำดับทางเดียว (4.5.4- 4.5.5)

Round-12 hunt: picked; channel-level screens (sellers/exam/re-upload/devotional/vendor/events), provenance check, vendor/seller/devotional recheck and quality ranking (tier C) passed; strict per-title check + final strict pass; oEmbed verified.

A 6-minute video from Math + ฯลฯ: “4.5 ลำดับทางเดียว (4.5.4- 4.5.5)”.

Video by Math + ฯลฯ, played through YouTube's embedded player.