Closed events and their receipts

Receipt list: the most recent closed events (status cooling or resolved), newest first, each with score_at_open, peak_score, receipts at 24h, 7d and 30d (ret_pct and resolved_at null until each resolves; benchmark is BTC for crypto and SPY for stocks, and benchmark_ret_pct is its return over the same window, null until filled) and proofs. peak_heat on each event is the deprecated alias of peak_score, same value, remaining until at least 2026-12-31.