{"ok":true,"schema_version":1,"data":{"schema_version":1,"block_count":5000,"first_block":9104008,"last_block":9109007,"first_observed_at":"2026-09-19T20:24:00.001Z","last_observed_at":"2026-09-20T13:17:48.000Z","block_time":{"count":4999,"mean_ms":12168,"min_ms":11999,"max_ms":24001,"p50_ms":12000,"p90_ms":12001},"throughput":{"total_extrinsics":89845,"total_events":1003936,"mean_extrinsics_per_block":17.97,"mean_events_per_block":200.79,"max_extrinsics_in_block":173},"distinct_authors":20,"author_concentration":{"holders":20,"total":5000,"gini":0.01352,"hhi":0.05009,"hhi_normalized":0.000094,"nakamoto_coefficient":10,"top_1pct_share":0.0508,"top_5pct_share":0.0508,"top_10pct_share":0.1016,"top_20pct_share":0.2032,"entropy":4.320579,"entropy_normalized":0.999688},"distinct_spec_versions":1,"latest_spec_version":467},"meta":{"artifact_path":"/metagraph/blocks/summary.json","cache":"short","contract_version":"2026-07-03.2","generated_at":"2026-09-20T13:17:48.000Z","observed_through":"2026-09-20T13:17:54.165Z","published_at":"2026-09-20T12:26:49.169Z","source":"chain-events"}}