{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2025:7QJKMYIYIMHBXQTPFPJYJL76AU","short_pith_number":"pith:7QJKMYIY","canonical_record":{"source":{"id":"2502.07130","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CV","submitted_at":"2025-02-10T23:49:06Z","cross_cats_sorted":["cs.AI","cs.LG"],"title_canon_sha256":"f0c3f943a77e1043ca64b66107c1ea315226db394cda1ffb845d6ed2ee6c85b0","abstract_canon_sha256":"c8a927676515c5789f23966a6098a0e1ffca3d7252680c6387b4b2b58513bc40"},"schema_version":"1.0"},"canonical_sha256":"fc12a66118430e1bc26f2bd384affe05201491095eaed84b75b4e833ab2011e5","source":{"kind":"arxiv","id":"2502.07130","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2502.07130","created_at":"2026-07-05T10:12:33Z"},{"alias_kind":"arxiv_version","alias_value":"2502.07130v1","created_at":"2026-07-05T10:12:33Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2502.07130","created_at":"2026-07-05T10:12:33Z"},{"alias_kind":"pith_short_12","alias_value":"7QJKMYIYIMHB","created_at":"2026-07-05T10:12:33Z"},{"alias_kind":"pith_short_16","alias_value":"7QJKMYIYIMHBXQTP","created_at":"2026-07-05T10:12:33Z"},{"alias_kind":"pith_short_8","alias_value":"7QJKMYIY","created_at":"2026-07-05T10:12:33Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2025:7QJKMYIYIMHBXQTPFPJYJL76AU","target":"record","payload":{"canonical_record":{"source":{"id":"2502.07130","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CV","submitted_at":"2025-02-10T23:49:06Z","cross_cats_sorted":["cs.AI","cs.LG"],"title_canon_sha256":"f0c3f943a77e1043ca64b66107c1ea315226db394cda1ffb845d6ed2ee6c85b0","abstract_canon_sha256":"c8a927676515c5789f23966a6098a0e1ffca3d7252680c6387b4b2b58513bc40"},"schema_version":"1.0"},"canonical_sha256":"fc12a66118430e1bc26f2bd384affe05201491095eaed84b75b4e833ab2011e5","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T10:12:33.299784Z","signature_b64":"3YurtpANIOZYYpJQFwVf1HnpBSG189nNnE+vIaPHDgTVzdxzYWQcy6FG6Muxc8gyCMZQmax4OdMvf0c4FoHACQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"fc12a66118430e1bc26f2bd384affe05201491095eaed84b75b4e833ab2011e5","last_reissued_at":"2026-07-05T10:12:33.299393Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T10:12:33.299393Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2502.07130","source_version":1,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-07-05T10:12:33Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"/hRW++kwLlJ/NuPNr+8zFaP2huH7kTRaN2/fbF26CDnI7Y2KSsoo8w4JHe66wfHqUp07J9IlVCwCWwP1lVPRAQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-08T23:09:25.042123Z"},"content_sha256":"9d85a5d32a6d2e0e85094d52881bd647c5c635aefa96be785ac0eec983033b24","schema_version":"1.0","event_id":"sha256:9d85a5d32a6d2e0e85094d52881bd647c5c635aefa96be785ac0eec983033b24"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2025:7QJKMYIYIMHBXQTPFPJYJL76AU","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Unconstrained Body Recognition at Altitude and Range: Comparing Four Approaches","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cs.AI","cs.LG"],"primary_cat":"cs.CV","authors_text":"Alice J O'Toole, Blake A Myers, Matthew Q Hill, Thomas M Metz, Veda Nandan Gandi","submitted_at":"2025-02-10T23:49:06Z","abstract_excerpt":"This study presents an investigation of four distinct approaches to long-term person identification using body shape. Unlike short-term re-identification systems that rely on temporary features (e.g., clothing), we focus on learning persistent body shape characteristics that remain stable over time. We introduce a body identification model based on a Vision Transformer (ViT) (Body Identification from Diverse Datasets, BIDDS) and on a Swin-ViT model (Swin-BIDDS). We also expand on previous approaches based on the Linguistic and Non-linguistic Core ResNet Identity Models (LCRIM and NLCRIM), but "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2502.07130","kind":"arxiv","version":1},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2502.07130/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"references":{"count":0,"sample":[],"resolved_work":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","internal_anchors":0},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"author_claims":{"count":0,"strong_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"builder_version":"pith-number-builder-2026-05-17-v1"},"verdict_id":null},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-07-05T10:12:33Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"KQZ8/ZsPah8bDipIJbh1SVu3JpFbXQzEqrXPBGQBVq8tQvRa6UwBrsKGqaeme2UwMHljoTYCbvlIbi4Ia+IGBw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-08T23:09:25.043340Z"},"content_sha256":"7f86ca17331fe1bae8a2bd7e5d42a9fe9acac1ebdb2f4b8e95ae34633b0fc64a","schema_version":"1.0","event_id":"sha256:7f86ca17331fe1bae8a2bd7e5d42a9fe9acac1ebdb2f4b8e95ae34633b0fc64a"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/7QJKMYIYIMHBXQTPFPJYJL76AU/bundle.json","state_url":"https://pith.science/pith/7QJKMYIYIMHBXQTPFPJYJL76AU/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/7QJKMYIYIMHBXQTPFPJYJL76AU/bundle.json","status":"primary"}],"public_keys":[{"key_id":"pith-v1-2026-05","algorithm":"ed25519","format":"raw","public_key_b64":"stVStoiQhXFxp4s2pdzPNoqVNBMojDU/fJ2db5S3CbM=","public_key_hex":"b2d552b68890857171a78b36a5dccf368a953413288c353f7c9d9d6f94b709b3","fingerprint_sha256_b32_first128bits":"RVFV5Z2OI2J3ZUO7ERDEBCYNKS","fingerprint_sha256_hex":"8d4b5ee74e4693bcd1df2446408b0d54","rotates_at":null,"url":"https://pith.science/pith-signing-key.json","notes":"Pith uses this Ed25519 key to sign canonical record SHA-256 digests. Verify with: ed25519_verify(public_key, message=canonical_sha256_bytes, signature=base64decode(signature_b64))."}],"merge_version":"pith-open-graph-merge-v1","built_at":"2026-08-08T23:09:25Z","links":{"resolver":"https://pith.science/pith/7QJKMYIYIMHBXQTPFPJYJL76AU","bundle":"https://pith.science/pith/7QJKMYIYIMHBXQTPFPJYJL76AU/bundle.json","state":"https://pith.science/pith/7QJKMYIYIMHBXQTPFPJYJL76AU/state.json","well_known_bundle":"https://pith.science/.well-known/pith/7QJKMYIYIMHBXQTPFPJYJL76AU/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2025:7QJKMYIYIMHBXQTPFPJYJL76AU","merge_version":"pith-open-graph-merge-v1","event_count":2,"valid_event_count":2,"invalid_event_count":0,"equivocation_count":0,"current":{"canonical_record":{"metadata":{"abstract_canon_sha256":"c8a927676515c5789f23966a6098a0e1ffca3d7252680c6387b4b2b58513bc40","cross_cats_sorted":["cs.AI","cs.LG"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CV","submitted_at":"2025-02-10T23:49:06Z","title_canon_sha256":"f0c3f943a77e1043ca64b66107c1ea315226db394cda1ffb845d6ed2ee6c85b0"},"schema_version":"1.0","source":{"id":"2502.07130","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2502.07130","created_at":"2026-07-05T10:12:33Z"},{"alias_kind":"arxiv_version","alias_value":"2502.07130v1","created_at":"2026-07-05T10:12:33Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2502.07130","created_at":"2026-07-05T10:12:33Z"},{"alias_kind":"pith_short_12","alias_value":"7QJKMYIYIMHB","created_at":"2026-07-05T10:12:33Z"},{"alias_kind":"pith_short_16","alias_value":"7QJKMYIYIMHBXQTP","created_at":"2026-07-05T10:12:33Z"},{"alias_kind":"pith_short_8","alias_value":"7QJKMYIY","created_at":"2026-07-05T10:12:33Z"}],"graph_snapshots":[{"event_id":"sha256:7f86ca17331fe1bae8a2bd7e5d42a9fe9acac1ebdb2f4b8e95ae34633b0fc64a","target":"graph","created_at":"2026-07-05T10:12:33Z","signer":{"key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signer_id":"pith.science","signer_type":"pith_registry"},"payload":{"graph_snapshot":{"author_claims":{"count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","strong_count":0},"builder_version":"pith-number-builder-2026-05-17-v1","claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"integrity":{"available":true,"clean":true,"detectors_run":[],"endpoint":"/pith/2502.07130/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"This study presents an investigation of four distinct approaches to long-term person identification using body shape. Unlike short-term re-identification systems that rely on temporary features (e.g., clothing), we focus on learning persistent body shape characteristics that remain stable over time. We introduce a body identification model based on a Vision Transformer (ViT) (Body Identification from Diverse Datasets, BIDDS) and on a Swin-ViT model (Swin-BIDDS). We also expand on previous approaches based on the Linguistic and Non-linguistic Core ResNet Identity Models (LCRIM and NLCRIM), but ","authors_text":"Alice J O'Toole, Blake A Myers, Matthew Q Hill, Thomas M Metz, Veda Nandan Gandi","cross_cats":["cs.AI","cs.LG"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CV","submitted_at":"2025-02-10T23:49:06Z","title":"Unconstrained Body Recognition at Altitude and Range: Comparing Four Approaches"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2502.07130","kind":"arxiv","version":1},"verdict":{"created_at":null,"id":null,"model_set":{},"one_line_summary":"","pipeline_version":null,"pith_extraction_headline":"","strongest_claim":"","weakest_assumption":""}},"verdict_id":null}}],"author_attestations":[],"timestamp_anchors":[],"storage_attestations":[],"citation_signatures":[],"replication_records":[],"corrections":[],"mirror_hints":[],"record_created":{"event_id":"sha256:9d85a5d32a6d2e0e85094d52881bd647c5c635aefa96be785ac0eec983033b24","target":"record","created_at":"2026-07-05T10:12:33Z","signer":{"key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signer_id":"pith.science","signer_type":"pith_registry"},"payload":{"attestation_state":"computed","canonical_record":{"metadata":{"abstract_canon_sha256":"c8a927676515c5789f23966a6098a0e1ffca3d7252680c6387b4b2b58513bc40","cross_cats_sorted":["cs.AI","cs.LG"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CV","submitted_at":"2025-02-10T23:49:06Z","title_canon_sha256":"f0c3f943a77e1043ca64b66107c1ea315226db394cda1ffb845d6ed2ee6c85b0"},"schema_version":"1.0","source":{"id":"2502.07130","kind":"arxiv","version":1}},"canonical_sha256":"fc12a66118430e1bc26f2bd384affe05201491095eaed84b75b4e833ab2011e5","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"fc12a66118430e1bc26f2bd384affe05201491095eaed84b75b4e833ab2011e5","first_computed_at":"2026-07-05T10:12:33.299393Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T10:12:33.299393Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"3YurtpANIOZYYpJQFwVf1HnpBSG189nNnE+vIaPHDgTVzdxzYWQcy6FG6Muxc8gyCMZQmax4OdMvf0c4FoHACQ==","signature_status":"signed_v1","signed_at":"2026-07-05T10:12:33.299784Z","signed_message":"canonical_sha256_bytes"},"source_id":"2502.07130","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:9d85a5d32a6d2e0e85094d52881bd647c5c635aefa96be785ac0eec983033b24","sha256:7f86ca17331fe1bae8a2bd7e5d42a9fe9acac1ebdb2f4b8e95ae34633b0fc64a"],"state_sha256":"0ec9c6d8a2c526ff08f082e34249921033e3bd1705bc2aae9bf349ad468bdefa"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"RsxOAXkmZZ/I3VY685k+zXp39h9Z4qa8xw4yP6vhYWhJMgBibB5Cj+o8VzgIjWQD2NbgCCY4hArTL907+IGmCg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-08T23:09:25.047908Z","bundle_sha256":"266db13e0d93c0c195fa072043a740966a6e4f4a59746c841c5b50f2a395e171"}}