Il y a trois mois, j'ai hérité d'un projet casse-tête chez un fonds quantique lyonnais : unifier deux carnets d'ordres — celui d'Hyperliquid (DEX perpétuels sur sa L1 appchain) et celui de Binance Futures (CEX) — dans un même dashboard de microstructure. Les noms de champs, les unités (base vs quote), le nombre d'ordres agrégés (n), la présence ou non du timestamp serveur : rien ne collait. Le but de cet article est de vous éviter trois semaines de debug en partageant la cartographie exacte que j'ai stabilisée, puis enrichie grâce à l'API HolySheep AI pour la couche d'explication et de normalisation sémantique.
Pourquoi ce mapping est crucial en 2026
Le marché des dérivés crypto est devenu bipolaire : 65 % du volume notionnel passe encore par les CEX (Binance, OKX, Bybit) selon les snapshots CoinGecko Q1 2026, mais les DEX L2 comme Hyperliquid captent désormais ~28 % de l'open interest BTC et 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