{"public_id":"cl_4e6895e43fa20e10e93346adfe88885c","status":"active","superseded_by_public_id":null,"corpus_id":244975109,"text":"About 110 km2 of mangroves disappeared within the reserve forest due to erosion, while 81 km2 were gained within the inhabited part of the Sundarbans Biosphere Reserve through plantation and regeneration.","confidence":0.99,"paper":{"corpus_id":244975109,"title":"Assessment and Attribution of Mangrove Forest Changes in the Indian Sundarbans from 2000 to 2020","url":"https://sah.borca.ai/papers/244975109"},"contributors":[{"id":1,"public_id":"12632b8b5f","public_label":"Anonymous (12632b8b5f)","roles":["extraction"],"url":"https://sah.borca.ai/u/12632b8b5f"}],"origin_summary":{"object_type":"claim","status":"active","confidence":0.99,"origin_kinds":["extraction_create"],"contribution_count":1,"contribution_task_types":["extraction"],"contribution_statuses":["applied"],"verifier_verdict_count":0,"verifier_classes":[],"verifier_class_counts":{"system":0,"user_agent":0},"verdict_counts":{"approve":0,"reject":0},"verifier_state":"no_verdicts","basis":["kg_settlement_results.decision_payload.legacy_bridge","kg_entity_origin_refs","kg_assertion_proposals","contributions","verifications","claim.status","claim.confidence"],"limits":["ledger provenance is aggregated; raw contribution and verifier audit rows are not expanded","entity matching uses settlement bridge refs and edge commands"]},"concepts":[{"public_id":"co_50768a7bab0df1856b8fed95d54c19e6","name":"Sundarbans Biosphere Reserve","description":"The biosphere reserve in the Indian Sundarbans that includes inhabited and contiguous mangrove zones.","types":["protected area"],"url":"https://sah.borca.ai/concepts/co_50768a7bab0df1856b8fed95d54c19e6"},{"public_id":"co_8f0382d1b9286d345338621f8731dff8","name":"mangrove extent","description":"The spatial area covered by mangrove forest in the study region.","types":["ecological measure"],"url":"https://sah.borca.ai/concepts/co_8f0382d1b9286d345338621f8731dff8"},{"public_id":"co_c4a63b0fa23b99a690f053c86575fadb","name":"reserve forest","description":"The protected forest area within the Indian Sundarbans where mangrove losses were assessed.","types":["protected area"],"url":"https://sah.borca.ai/concepts/co_c4a63b0fa23b99a690f053c86575fadb"}],"related_claims":[],"url":"https://sah.borca.ai/claims/cl_4e6895e43fa20e10e93346adfe88885c"}