{"ok":true,"schema_version":1,"data":{"schema_version":1,"block_count":5000,"first_block":9025789,"last_block":9030788,"first_observed_at":"2026-09-08T22:36:24.000Z","last_observed_at":"2026-09-09T15:17:12.000Z","block_time":{"count":4999,"mean_ms":12012,"min_ms":11999,"max_ms":24000,"p50_ms":12000,"p90_ms":12000},"throughput":{"total_extrinsics":94293,"total_events":1020386,"mean_extrinsics_per_block":18.86,"mean_events_per_block":204.08,"max_extrinsics_in_block":777},"distinct_authors":20,"author_concentration":{"holders":20,"total":5000,"gini":0.0014,"hhi":0.050001,"hhi_normalized":0.000001,"nakamoto_coefficient":10,"top_1pct_share":0.0502,"top_5pct_share":0.0502,"top_10pct_share":0.1004,"top_20pct_share":0.2008,"entropy":4.321917,"entropy_normalized":0.999997},"distinct_spec_versions":1,"latest_spec_version":455},"meta":{"artifact_path":"/metagraph/blocks/summary.json","cache":"short","contract_version":"2026-07-03.2","generated_at":"2026-09-09T15:17:12.000Z","observed_through":"2026-09-09T15:17:18.112Z","published_at":"2026-09-09T12:22:17.996Z","source":"chain-events"}}