{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2026:N73BUWF2IVRTFU3SDNTTYUSWBG","short_pith_number":"pith:N73BUWF2","canonical_record":{"source":{"id":"2607.15004","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.RO","submitted_at":"2026-07-16T13:52:08Z","cross_cats_sorted":[],"title_canon_sha256":"e6f5913c2aabb4e24a62a7878a13e3ed7cf85aa6d47d082cbb939bf658e3da2c","abstract_canon_sha256":"dbacb60a229b35c3aa6812a3322b19fdf7214e9ecab312548e539c10b6be5bbb"},"schema_version":"1.0"},"canonical_sha256":"6ff61a58ba456332d3721b673c52560990996a8a5705392d38fce86020faa829","source":{"kind":"arxiv","id":"2607.15004","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2607.15004","created_at":"2026-07-17T01:22:03Z"},{"alias_kind":"arxiv_version","alias_value":"2607.15004v1","created_at":"2026-07-17T01:22:03Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2607.15004","created_at":"2026-07-17T01:22:03Z"},{"alias_kind":"pith_short_12","alias_value":"N73BUWF2IVRT","created_at":"2026-07-17T01:22:03Z"},{"alias_kind":"pith_short_16","alias_value":"N73BUWF2IVRTFU3S","created_at":"2026-07-17T01:22:03Z"},{"alias_kind":"pith_short_8","alias_value":"N73BUWF2","created_at":"2026-07-17T01:22:03Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2026:N73BUWF2IVRTFU3SDNTTYUSWBG","target":"record","payload":{"canonical_record":{"source":{"id":"2607.15004","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.RO","submitted_at":"2026-07-16T13:52:08Z","cross_cats_sorted":[],"title_canon_sha256":"e6f5913c2aabb4e24a62a7878a13e3ed7cf85aa6d47d082cbb939bf658e3da2c","abstract_canon_sha256":"dbacb60a229b35c3aa6812a3322b19fdf7214e9ecab312548e539c10b6be5bbb"},"schema_version":"1.0"},"canonical_sha256":"6ff61a58ba456332d3721b673c52560990996a8a5705392d38fce86020faa829","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-17T01:22:03.446903Z","signature_b64":"uHpte6+E9cGLFxTWN1sV4skurZkxwRxxEiHA9mFSxVgfePUCz7AXuHZuAoXJ3EUnLOlWtagmDffs3R7TKRpsBw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"6ff61a58ba456332d3721b673c52560990996a8a5705392d38fce86020faa829","last_reissued_at":"2026-07-17T01:22:03.446055Z","signature_status":"signed_v1","first_computed_at":"2026-07-17T01:22:03.446055Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2607.15004","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":"2026-07-17T01:22:03Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"8xFitfkwqPUeGQhUdFHfDnUVR2bptdsvx56HPftZ8BTwoUMSaPdt49Y+m7lqXz9FQkWRdpWzIhSI4VeybamFCA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-04T21:29:54.384487Z"},"content_sha256":"b286a4cc62c5897fda870e2696d5dadad2e67de85090614bbe052825f187d2fd","schema_version":"1.0","event_id":"sha256:b286a4cc62c5897fda870e2696d5dadad2e67de85090614bbe052825f187d2fd"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2026:N73BUWF2IVRTFU3SDNTTYUSWBG","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"CosFly-VLA: A Spatially Aware Vision-Language-Action Model for UAV Tracking","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":[],"primary_cat":"cs.RO","authors_text":"Binbo Li, Da Zhang, Hanxuan Chen, Hanzhong Guo, Ji Pei, Kangli Wang, Ruilong Ren, Shuai Yuan, Songsheng Cheng, Tianle Zeng, Xiangyue Wang, Yunpeng Zhou","submitted_at":"2026-07-16T13:52:08Z","abstract_excerpt":"Dynamic target tracking is essential for Unmanned Aerial Vehicles (UAVs) operating in complex urban environments, where both the target and the camera viewpoint change continuously. Existing Vision-Language-Action (VLA) policies can track visible targets effectively, but their performance often degrades when buildings, vegetation, or roadside objects block the line of sight. During sustained occlusion, a policy may lose the target state, execute actions toward an incorrect region, and amplify this error through subsequent observations until re-acquisition becomes impossible. To this end, we pr"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2607.15004","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/2607.15004/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":"2026-07-17T01:22:03Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"H9RRb4nEgzKH9nxHzrWbWOcKa5BYzuJT4vJ/Mqs8+7hyEVQ6IdOY2xFFgmf/3XSxMzIzpe/bTb2uikZfnYv9Bg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-04T21:29:54.384851Z"},"content_sha256":"079ec9a45438d9bd5706f85df59528b863adb1bff36ecc848ee2625b99f462a7","schema_version":"1.0","event_id":"sha256:079ec9a45438d9bd5706f85df59528b863adb1bff36ecc848ee2625b99f462a7"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/N73BUWF2IVRTFU3SDNTTYUSWBG/bundle.json","state_url":"https://pith.science/pith/N73BUWF2IVRTFU3SDNTTYUSWBG/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/N73BUWF2IVRTFU3SDNTTYUSWBG/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":"2026-08-04T21:29:54Z","links":{"resolver":"https://pith.science/pith/N73BUWF2IVRTFU3SDNTTYUSWBG","bundle":"https://pith.science/pith/N73BUWF2IVRTFU3SDNTTYUSWBG/bundle.json","state":"https://pith.science/pith/N73BUWF2IVRTFU3SDNTTYUSWBG/state.json","well_known_bundle":"https://pith.science/.well-known/pith/N73BUWF2IVRTFU3SDNTTYUSWBG/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2026:N73BUWF2IVRTFU3SDNTTYUSWBG","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":"dbacb60a229b35c3aa6812a3322b19fdf7214e9ecab312548e539c10b6be5bbb","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.RO","submitted_at":"2026-07-16T13:52:08Z","title_canon_sha256":"e6f5913c2aabb4e24a62a7878a13e3ed7cf85aa6d47d082cbb939bf658e3da2c"},"schema_version":"1.0","source":{"id":"2607.15004","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2607.15004","created_at":"2026-07-17T01:22:03Z"},{"alias_kind":"arxiv_version","alias_value":"2607.15004v1","created_at":"2026-07-17T01:22:03Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2607.15004","created_at":"2026-07-17T01:22:03Z"},{"alias_kind":"pith_short_12","alias_value":"N73BUWF2IVRT","created_at":"2026-07-17T01:22:03Z"},{"alias_kind":"pith_short_16","alias_value":"N73BUWF2IVRTFU3S","created_at":"2026-07-17T01:22:03Z"},{"alias_kind":"pith_short_8","alias_value":"N73BUWF2","created_at":"2026-07-17T01:22:03Z"}],"graph_snapshots":[{"event_id":"sha256:079ec9a45438d9bd5706f85df59528b863adb1bff36ecc848ee2625b99f462a7","target":"graph","created_at":"2026-07-17T01:22:03Z","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/2607.15004/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Dynamic target tracking is essential for Unmanned Aerial Vehicles (UAVs) operating in complex urban environments, where both the target and the camera viewpoint change continuously. Existing Vision-Language-Action (VLA) policies can track visible targets effectively, but their performance often degrades when buildings, vegetation, or roadside objects block the line of sight. During sustained occlusion, a policy may lose the target state, execute actions toward an incorrect region, and amplify this error through subsequent observations until re-acquisition becomes impossible. To this end, we pr","authors_text":"Binbo Li, Da Zhang, Hanxuan Chen, Hanzhong Guo, Ji Pei, Kangli Wang, Ruilong Ren, Shuai Yuan, Songsheng Cheng, Tianle Zeng, Xiangyue Wang, Yunpeng Zhou","cross_cats":[],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.RO","submitted_at":"2026-07-16T13:52:08Z","title":"CosFly-VLA: A Spatially Aware Vision-Language-Action Model for UAV Tracking"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2607.15004","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:b286a4cc62c5897fda870e2696d5dadad2e67de85090614bbe052825f187d2fd","target":"record","created_at":"2026-07-17T01:22:03Z","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":"dbacb60a229b35c3aa6812a3322b19fdf7214e9ecab312548e539c10b6be5bbb","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.RO","submitted_at":"2026-07-16T13:52:08Z","title_canon_sha256":"e6f5913c2aabb4e24a62a7878a13e3ed7cf85aa6d47d082cbb939bf658e3da2c"},"schema_version":"1.0","source":{"id":"2607.15004","kind":"arxiv","version":1}},"canonical_sha256":"6ff61a58ba456332d3721b673c52560990996a8a5705392d38fce86020faa829","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"6ff61a58ba456332d3721b673c52560990996a8a5705392d38fce86020faa829","first_computed_at":"2026-07-17T01:22:03.446055Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-17T01:22:03.446055Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"uHpte6+E9cGLFxTWN1sV4skurZkxwRxxEiHA9mFSxVgfePUCz7AXuHZuAoXJ3EUnLOlWtagmDffs3R7TKRpsBw==","signature_status":"signed_v1","signed_at":"2026-07-17T01:22:03.446903Z","signed_message":"canonical_sha256_bytes"},"source_id":"2607.15004","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:b286a4cc62c5897fda870e2696d5dadad2e67de85090614bbe052825f187d2fd","sha256:079ec9a45438d9bd5706f85df59528b863adb1bff36ecc848ee2625b99f462a7"],"state_sha256":"605cd8d57d7cd91be44149874159cb957ca027417bc2de7024572a9e9f6cd693"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"VQ0ZgYgz7bCE7qLY+Yw+Uj1telWrU7LCgaM947bIlQ9k+gm1yBMBd7A+tRe0HkdtMm/p52TYBHsVPSfP3m2RAA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-04T21:29:54.387418Z","bundle_sha256":"9873bfb71ef99068c883f62a186016f5b86d917e66566bbe7239a7ece8dfd801"}}