{"generated_at": "2026-05-21T12:44:04+00:00", "btc": {"errors": ["coinmetrics_btc: HTTPError"], "mempool_count": 102350, "mempool_vsize": 41540197, "fee_sat_vb": 2, "fee_30min_sat_vb": 1, "hash_rate_th": 821683693386.0, "hash_rate_eh": 821683.7, "extreme_signals": []}, "eth": {"errors": ["coinmetrics_eth: HTTPError"], "extreme_signals": []}, "interpretation": "BTC mempool quiet (2 sat/vB) \u2014 low on-chain demand", "fetch_duration_s": 0.5}