{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2020:PSBBP4GZFB5O7CE5SDF5VCGI7B","short_pith_number":"pith:PSBBP4GZ","canonical_record":{"source":{"id":"2007.08434","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CV","submitted_at":"2020-07-16T16:21:34Z","cross_cats_sorted":[],"title_canon_sha256":"bd3b5f2609dadbb8c0be4e45bf4c968a10084dcaaef87e86fa29c2554deed05d","abstract_canon_sha256":"7b4b280b7517a6a6839088313ad5bd1cdc5b41b41893a23d6ea1cb1e6ef366e2"},"schema_version":"1.0"},"canonical_sha256":"7c8217f0d9287aef889d90cbda88c8f84c76ecc758a89e4fcc98dd1621f1fb48","source":{"kind":"arxiv","id":"2007.08434","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2007.08434","created_at":"2026-07-05T01:22:20Z"},{"alias_kind":"arxiv_version","alias_value":"2007.08434v2","created_at":"2026-07-05T01:22:20Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2007.08434","created_at":"2026-07-05T01:22:20Z"},{"alias_kind":"pith_short_12","alias_value":"PSBBP4GZFB5O","created_at":"2026-07-05T01:22:20Z"},{"alias_kind":"pith_short_16","alias_value":"PSBBP4GZFB5O7CE5","created_at":"2026-07-05T01:22:20Z"},{"alias_kind":"pith_short_8","alias_value":"PSBBP4GZ","created_at":"2026-07-05T01:22:20Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2020:PSBBP4GZFB5O7CE5SDF5VCGI7B","target":"record","payload":{"canonical_record":{"source":{"id":"2007.08434","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CV","submitted_at":"2020-07-16T16:21:34Z","cross_cats_sorted":[],"title_canon_sha256":"bd3b5f2609dadbb8c0be4e45bf4c968a10084dcaaef87e86fa29c2554deed05d","abstract_canon_sha256":"7b4b280b7517a6a6839088313ad5bd1cdc5b41b41893a23d6ea1cb1e6ef366e2"},"schema_version":"1.0"},"canonical_sha256":"7c8217f0d9287aef889d90cbda88c8f84c76ecc758a89e4fcc98dd1621f1fb48","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T01:22:20.155563Z","signature_b64":"YRfIaUQdeJrthbzHQIompqRRW75WBzNC5my36AkmBV3JsteSJgXFs3mYLC4bV2pthDYGB6Rptt/HmFBQHzfqCQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"7c8217f0d9287aef889d90cbda88c8f84c76ecc758a89e4fcc98dd1621f1fb48","last_reissued_at":"2026-07-05T01:22:20.155037Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T01:22:20.155037Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2007.08434","source_version":2,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-07-05T01:22:20Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"bgh3sjDDauO57nVRrmBmbs6Fb1F7GukKBLRRXWiuY0CvMJA17VzlR9KAwpfbDNyiaF2c1Snw1iYYNrPO1gYWBw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-11T08:38:17.257365Z"},"content_sha256":"fbd42c20d27bb421bd03d0005fffee10b28cd7d5e54de7dbd6026b20d089254c","schema_version":"1.0","event_id":"sha256:fbd42c20d27bb421bd03d0005fffee10b28cd7d5e54de7dbd6026b20d089254c"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2020:PSBBP4GZFB5O7CE5SDF5VCGI7B","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Appearance-Preserving 3D Convolution for Video-based Person Re-identification","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cs.CV","authors_text":"Bingpeng Ma, Hong Chang, Hongkai Zhang, Xilin Chen, Xinqian Gu","submitted_at":"2020-07-16T16:21:34Z","abstract_excerpt":"Due to the imperfect person detection results and posture changes, temporal appearance misalignment is unavoidable in video-based person re-identification (ReID). In this case, 3D convolution may destroy the appearance representation of person video clips, thus it is harmful to ReID. To address this problem, we propose AppearancePreserving 3D Convolution (AP3D), which is composed of two components: an Appearance-Preserving Module (APM) and a 3D convolution kernel. With APM aligning the adjacent feature maps in pixel level, the following 3D convolution can model temporal information on the prem"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2007.08434","kind":"arxiv","version":2},"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/2007.08434/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":"2026-07-05T01:22:20Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"2T0qTnTPwotJKJeCqYrNHX7+2PWcITDr5D6SlWQS7hyfDhYpHTeyRO4+g0yqGh1Qcj5QwoTLC36Coa2ewa9QAQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-11T08:38:17.257910Z"},"content_sha256":"88feb449c061e976a3fdc7f6f942f84e4f887c38847c7e4dac0c565aef1dfcd9","schema_version":"1.0","event_id":"sha256:88feb449c061e976a3fdc7f6f942f84e4f887c38847c7e4dac0c565aef1dfcd9"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/PSBBP4GZFB5O7CE5SDF5VCGI7B/bundle.json","state_url":"https://pith.science/pith/PSBBP4GZFB5O7CE5SDF5VCGI7B/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/PSBBP4GZFB5O7CE5SDF5VCGI7B/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":"2026-08-11T08:38:17Z","links":{"resolver":"https://pith.science/pith/PSBBP4GZFB5O7CE5SDF5VCGI7B","bundle":"https://pith.science/pith/PSBBP4GZFB5O7CE5SDF5VCGI7B/bundle.json","state":"https://pith.science/pith/PSBBP4GZFB5O7CE5SDF5VCGI7B/state.json","well_known_bundle":"https://pith.science/.well-known/pith/PSBBP4GZFB5O7CE5SDF5VCGI7B/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2020:PSBBP4GZFB5O7CE5SDF5VCGI7B","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":"7b4b280b7517a6a6839088313ad5bd1cdc5b41b41893a23d6ea1cb1e6ef366e2","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CV","submitted_at":"2020-07-16T16:21:34Z","title_canon_sha256":"bd3b5f2609dadbb8c0be4e45bf4c968a10084dcaaef87e86fa29c2554deed05d"},"schema_version":"1.0","source":{"id":"2007.08434","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2007.08434","created_at":"2026-07-05T01:22:20Z"},{"alias_kind":"arxiv_version","alias_value":"2007.08434v2","created_at":"2026-07-05T01:22:20Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2007.08434","created_at":"2026-07-05T01:22:20Z"},{"alias_kind":"pith_short_12","alias_value":"PSBBP4GZFB5O","created_at":"2026-07-05T01:22:20Z"},{"alias_kind":"pith_short_16","alias_value":"PSBBP4GZFB5O7CE5","created_at":"2026-07-05T01:22:20Z"},{"alias_kind":"pith_short_8","alias_value":"PSBBP4GZ","created_at":"2026-07-05T01:22:20Z"}],"graph_snapshots":[{"event_id":"sha256:88feb449c061e976a3fdc7f6f942f84e4f887c38847c7e4dac0c565aef1dfcd9","target":"graph","created_at":"2026-07-05T01:22:20Z","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/2007.08434/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Due to the imperfect person detection results and posture changes, temporal appearance misalignment is unavoidable in video-based person re-identification (ReID). In this case, 3D convolution may destroy the appearance representation of person video clips, thus it is harmful to ReID. To address this problem, we propose AppearancePreserving 3D Convolution (AP3D), which is composed of two components: an Appearance-Preserving Module (APM) and a 3D convolution kernel. With APM aligning the adjacent feature maps in pixel level, the following 3D convolution can model temporal information on the prem","authors_text":"Bingpeng Ma, Hong Chang, Hongkai Zhang, Xilin Chen, Xinqian Gu","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CV","submitted_at":"2020-07-16T16:21:34Z","title":"Appearance-Preserving 3D Convolution for Video-based Person Re-identification"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2007.08434","kind":"arxiv","version":2},"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:fbd42c20d27bb421bd03d0005fffee10b28cd7d5e54de7dbd6026b20d089254c","target":"record","created_at":"2026-07-05T01:22:20Z","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":"7b4b280b7517a6a6839088313ad5bd1cdc5b41b41893a23d6ea1cb1e6ef366e2","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CV","submitted_at":"2020-07-16T16:21:34Z","title_canon_sha256":"bd3b5f2609dadbb8c0be4e45bf4c968a10084dcaaef87e86fa29c2554deed05d"},"schema_version":"1.0","source":{"id":"2007.08434","kind":"arxiv","version":2}},"canonical_sha256":"7c8217f0d9287aef889d90cbda88c8f84c76ecc758a89e4fcc98dd1621f1fb48","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"7c8217f0d9287aef889d90cbda88c8f84c76ecc758a89e4fcc98dd1621f1fb48","first_computed_at":"2026-07-05T01:22:20.155037Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T01:22:20.155037Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"YRfIaUQdeJrthbzHQIompqRRW75WBzNC5my36AkmBV3JsteSJgXFs3mYLC4bV2pthDYGB6Rptt/HmFBQHzfqCQ==","signature_status":"signed_v1","signed_at":"2026-07-05T01:22:20.155563Z","signed_message":"canonical_sha256_bytes"},"source_id":"2007.08434","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:fbd42c20d27bb421bd03d0005fffee10b28cd7d5e54de7dbd6026b20d089254c","sha256:88feb449c061e976a3fdc7f6f942f84e4f887c38847c7e4dac0c565aef1dfcd9"],"state_sha256":"5cf9237784c7714760c31cc2d483c36fb583438e49ea642af080e6c8a073d7f1"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"5v2m6rKRI1uERP2JxxSQ4E7Il5K4pWXTV+1biyHLx6vwVNpwj4YY3oiYGbdomP6y3ZWJMhoBfoUh5nedcs8+Cw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-11T08:38:17.262784Z","bundle_sha256":"30f030157d51fd529ff568adcba24dba9ae797be19b67916640a46278a5b9a50"}}