Top Gainers (Alpha-Ranked): Today's biggest 24h gainers across the CoinGecko top-1000 universe (stablecoins and wrapped BTC/ETH derivatives filtered out) plus per-chain ecosystem gainers for Ethereum, Base, Arbitrum, BNB Chain, Polygon, and Optimism — RANKED BY CROSS-SIGNAL ALPHA CONFLUENCE, not raw % move. Each gainer is scored by how many independent signals corroborate it (whale accumulation, cross-chain DEX trending, social/CT hype, sector rotation, multi-timeframe chart trend, AI forecast); tokens with real confluence lead and pure price-pumps are demoted. Returns: alphaRanked[] (symbol, verdict, signalCount, per-signal badges + evidence), rawMovers[] (no-confluence pumps), losers, and per-chain breakdown. Optional { params: { chain } } drills into one chain. Reads cached signals (zero extra API cost) with graceful degradation. Use to find what's actually worth attention, not just what's pumping.