{"system":"GoGuides Change Intelligence","capability_id":"goguides.change_intelligence","api_version":"change-v1","scope":"domain_root_change_intelligence","domain":"headingtonschool.com","classification_method":"deterministic_ruleset","classification_version":"change-v1","license":"https://www.goguides.com/data-license","license_version":"2.0","status":"observed","change_state":"changed","public_eligible":true,"tracked_url":"https://headingtonschool.com/","tracked_url_scope":"domain_root","root_selection_method":"central_domain_authority_root_precedence_v1","comparison_scope":"consecutive_stored_states_of_same_authoritative_root_url","history":{"observations_loaded":2,"change_events_returned":1,"limit":25,"first_loaded_at":"2026-08-30 21:35:55","last_loaded_at":"2026-09-07 04:48:32"},"current_observation":{"id":12064689,"timestamp_used":"2026-09-07 04:48:32","timestamp_basis":"last_observed_at","first_observed_at":"2026-09-07 04:48:32","last_observed_at":"2026-09-07 04:48:32","observation_count":1},"latest_change":{"previous_observation":{"id":11952922,"timestamp_used":"2026-08-30 21:35:55","timestamp_basis":"last_observed_at","first_observed_at":"2026-08-30 21:35:55","last_observed_at":"2026-08-30 21:35:55","observation_count":1},"current_observation":{"id":12064689,"timestamp_used":"2026-09-07 04:48:32","timestamp_basis":"last_observed_at","first_observed_at":"2026-09-07 04:48:32","last_observed_at":"2026-09-07 04:48:32","observation_count":1},"state":"changed","observation_gap":{"detected":false,"reason":null},"change":{"detected":true,"flags":{"text_changed":true,"structured_data_changed":true,"schema_type_mask_changed":false,"headers_changed":true,"word_count_changed":true,"internal_link_count_changed":false,"external_link_count_changed":false,"outbound_links_changed":true,"ai_policy_mask_changed":false,"canonical_url_changed":false,"final_url_changed":false,"http_status_changed":false,"publisher_declaration_changed":null},"magnitude":{"text_simhash_hamming_distance":3,"word_count_delta":-2,"internal_link_count_delta":0,"external_link_count_delta":0}},"before":{"requested_url":"https://headingtonschool.com/","final_url":"https://www.headingtonschool.com/","canonical_url":"https://www.headingtonschool.com/","http_status":200,"text_simhash":"3925172106740114046","text_simhash_hex":"3679033C1084227E","structured_data_sha256":"cfe5e2dbee8dc2746f184ce0ea9034051b09cc9788fd8d06336de7d75acd0c81","schema_type_mask":"151558","headers_sha256":"2912513160312965f5db05eaaaed663f59917ffa28d995616568a63ba08c7a0f","word_count":868,"internal_link_count":93,"external_link_count":10,"outbound_links_sha256":"8158033b38a22d62ac034e127d97f8d09ba815baaf4db3949e9bc4794d9ef2f2","ai_policy_mask":"1","publisher_declaration_fingerprint":null},"after":{"requested_url":"https://headingtonschool.com/","final_url":"https://www.headingtonschool.com/","canonical_url":"https://www.headingtonschool.com/","http_status":200,"text_simhash":"3925169907716850238","text_simhash_hex":"3679013C1084023E","structured_data_sha256":"127e0039ac1acc0cb35a25324a04a528587f50b7dca4ab0eef216b3e77cb3455","schema_type_mask":"151558","headers_sha256":"cdb3c8d702580989a641013ff8d08bdb5e8303571a7280e3ae9bfd8ba1209f67","word_count":866,"internal_link_count":93,"external_link_count":10,"outbound_links_sha256":"78bf5b6c449fad79d2bace9a9b8c51d9a9dd68009c7314e6f84839174139c16a","ai_policy_mask":"1","publisher_declaration_fingerprint":null},"compatibility":{"refresh_recommended":true,"refresh_reason":["text_changed","structured_data_changed","outbound_links_changed"]},"classification_method":"deterministic_ruleset","classification_version":"change-v1"},"events":[{"previous_observation":{"id":11952922,"timestamp_used":"2026-08-30 21:35:55","timestamp_basis":"last_observed_at","first_observed_at":"2026-08-30 21:35:55","last_observed_at":"2026-08-30 21:35:55","observation_count":1},"current_observation":{"id":12064689,"timestamp_used":"2026-09-07 04:48:32","timestamp_basis":"last_observed_at","first_observed_at":"2026-09-07 04:48:32","last_observed_at":"2026-09-07 04:48:32","observation_count":1},"state":"changed","observation_gap":{"detected":false,"reason":null},"change":{"detected":true,"flags":{"text_changed":true,"structured_data_changed":true,"schema_type_mask_changed":false,"headers_changed":true,"word_count_changed":true,"internal_link_count_changed":false,"external_link_count_changed":false,"outbound_links_changed":true,"ai_policy_mask_changed":false,"canonical_url_changed":false,"final_url_changed":false,"http_status_changed":false,"publisher_declaration_changed":null},"magnitude":{"text_simhash_hamming_distance":3,"word_count_delta":-2,"internal_link_count_delta":0,"external_link_count_delta":0}},"before":{"requested_url":"https://headingtonschool.com/","final_url":"https://www.headingtonschool.com/","canonical_url":"https://www.headingtonschool.com/","http_status":200,"text_simhash":"3925172106740114046","text_simhash_hex":"3679033C1084227E","structured_data_sha256":"cfe5e2dbee8dc2746f184ce0ea9034051b09cc9788fd8d06336de7d75acd0c81","schema_type_mask":"151558","headers_sha256":"2912513160312965f5db05eaaaed663f59917ffa28d995616568a63ba08c7a0f","word_count":868,"internal_link_count":93,"external_link_count":10,"outbound_links_sha256":"8158033b38a22d62ac034e127d97f8d09ba815baaf4db3949e9bc4794d9ef2f2","ai_policy_mask":"1","publisher_declaration_fingerprint":null},"after":{"requested_url":"https://headingtonschool.com/","final_url":"https://www.headingtonschool.com/","canonical_url":"https://www.headingtonschool.com/","http_status":200,"text_simhash":"3925169907716850238","text_simhash_hex":"3679013C1084023E","structured_data_sha256":"127e0039ac1acc0cb35a25324a04a528587f50b7dca4ab0eef216b3e77cb3455","schema_type_mask":"151558","headers_sha256":"cdb3c8d702580989a641013ff8d08bdb5e8303571a7280e3ae9bfd8ba1209f67","word_count":866,"internal_link_count":93,"external_link_count":10,"outbound_links_sha256":"78bf5b6c449fad79d2bace9a9b8c51d9a9dd68009c7314e6f84839174139c16a","ai_policy_mask":"1","publisher_declaration_fingerprint":null},"compatibility":{"refresh_recommended":true,"refresh_reason":["text_changed","structured_data_changed","outbound_links_changed"]},"classification_method":"deterministic_ruleset","classification_version":"change-v1"}],"semantics":{"state_changed":"At least one deterministic stored field changed and the compared observation windows do not overlap.","state_unchanged":"No available deterministic compared field changed and the compared observation windows do not overlap.","state_unknown":"No deterministic comparison can be established from the available stored fields.","state_insufficient_history":"Fewer than two distinct stored root-state rows are available for a comparison pair.","state_observation_gap":"Stored state windows overlap or recur, so chronological adjacency cannot be proved even though mechanical field measurements are still returned.","text_simhash_hamming_distance":"Mechanical 64-bit Hamming distance between stored text simhash values; 0 through 64.","count_delta":"Current stored numeric count minus previous stored numeric count.","hash_change":"Equality/difference only; no unsupported distance metric is invented for cryptographic hashes.","publisher_declaration_changed":"Compared only when explicitly named declaration/self-claim data exists in stored evidence_json; otherwise null.","materiality":"No major/minor/material rewrite label is assigned by change-v1."},"links":{"self":"https://www.goguides.com/changes/headingtonschool.com","state":"https://www.goguides.com/state/headingtonschool.com","evaluate":"https://www.goguides.com/evaluate/headingtonschool.com","history":"https://www.goguides.com/history/headingtonschool.com"},"ts_utc":"2026-09-25T08:55:46Z"}