{"system":"GoGuides Web State","api_version":"web-state-v3","scope":"objective_web_state_v3","domain":"ncbi.nlm.nih.gov","status":"observed","public_eligible":true,"observation":{"id":11919869,"requested_url":"https://www.ncbi.nlm.nih.gov/","final_url":"https://www.ncbi.nlm.nih.gov/","http_status":200,"first_observed_at":"2026-08-30 13:24:35","last_observed_at":"2026-08-30 13:24:35","observation_count":1},"state":{"text_simhash":"9221202366818356018","schema_type_mask":0,"headers_sha256":"714c23ac391ad552c0a046ee1c0913e48129789ec02e968d95dbb9d8d8949aa7","word_count":331,"internal_link_count":42,"external_link_count":26,"outbound_links_sha256":"a14c0c7dcc9f9abe66ac7ed0a5b1bd10f5e4c307f55b747193813d2e3bfc2080","ai_policy_mask":1,"schema_types":{"mask_version":"schema-type-mask-v1","set_bits":[],"types":[],"unknown_bits":[],"semantics_url":"https://www.goguides.com/docs/web-state.json#schema_type_mask"},"ai_policy":{"mask_version":"ai-policy-mask-v1","scope":"observed_machine_directives","robots_agent":"GoGuidesCrawler","set_bits":[0],"flags":["goguides_crawler_allowed"],"unknown_bits":[],"semantics_url":"https://www.goguides.com/docs/web-state.json#ai_policy_mask"}},"semantics":{"web_state_version":"web-state-v3","bitmasks":{"ai_policy_mask":{"version":"ai-policy-mask-v1","url":"https://www.goguides.com/docs/web-state.json#ai_policy_mask"},"schema_type_mask":{"version":"schema-type-mask-v1","url":"https://www.goguides.com/docs/web-state.json#schema_type_mask"}}},"links":{"self":"https://www.goguides.com/state/ncbi.nlm.nih.gov","evaluate":"https://www.goguides.com/evaluate/ncbi.nlm.nih.gov","changes":"https://www.goguides.com/changes/ncbi.nlm.nih.gov","history":"https://www.goguides.com/history/ncbi.nlm.nih.gov","verify":"https://www.goguides.com/verify/ncbi.nlm.nih.gov"},"license":"https://www.goguides.com/data-license","license_version":"2.0","ts_utc":"2026-09-08T09:35:02Z"}