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C:>DIR Global Agentic Regulator Hackathon - 2026-07-08 → 2026-09-18; concept-note submission 2026-07-31; finals build 2026-09-01–08; winners 2026-09-18 Cambridge - $100k (top6 cash + $25k Vouch track) - remote/virtual worldwide - Strong fit: agentic AI / RegTech, solo-friendly, India-remote OK; concept note first (≤1500 words + schematics), not a full ship by Jul 31 - cdir.global/cdir-hackathon
Arc Programmable Money (Encode) - live now; CP1 idea 2026-07-19; CP2 mid 2026-07-26; reg closes 2026-08-08; final submission 2026-08-09 (AoE); Demo Day 2026-08-20 - prize mainly top-team Arc Accelerator seats (cash pool not restated on page) - remote - DEADLINE STRUCTURE FIX vs tracked Aug 22: organizer final submit is Aug 9, Demo Day Aug 20 — use Aug 9 as the submission deadline - encodeclub.com/programmes/arc-hackathon
Re-verify (unchanged — not in JSON): Monad Spark still 2026-07-19; NamasteDev Codex still 2026-07-19 23:59 IST; Midnight×MLH still 2026-07-19; Qwen Cloud still 2026-07-20; OpenAI Build Week still 2026-07-21; SigNoz still 2026-07-26; Casper finals still 2026-07-26; TxODDS still 2026-07-19 window. Canton Encode SPA unreadable live; last crawl showed Jul 13 (already past) — no clean reconfirm of Jul 19. UXmaxx/Rally finale listed ~Jul 30 with no clean Jul 19 final-submit line. OKX.AI Genesis already on your “deadline extend” known list; organizer + @XLayerOfficial now show Jul 27 23:59 UTC (no second change beyond that).
Listings pulse: ETHGlobal upcoming = Lisbon IRL Jul 24–26 + ETHOnline async Sep 4–16 + Tokyo + Mumbai (known). DoraHacks/Akindo cards thin (JS); no new high-signal underrated virtual with verified prize. Devpost prize/recent = known big labs (OpenAI Build Week, Gemini XPRIZE, Qwen). No new OpenAI/Anthropic/Google/xAI/Meta custom-subdomain challenge in window beyond already-tracked OpenAI Build Week.