{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2023:UNRBDFQ5CMUATEAHUN5W5UKQOE","short_pith_number":"pith:UNRBDFQ5","canonical_record":{"source":{"id":"2307.12616","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.CV","submitted_at":"2023-07-24T08:44:25Z","cross_cats_sorted":["cs.AI"],"title_canon_sha256":"80d9b02cda6262b8fc9edce728d4a5038d3c1706d62e88150e0e62304110d4dc","abstract_canon_sha256":"ba6b9753f6393646bbb6f2742bea9c5ff4e3f7a85fb43871a8098e716b10d414"},"schema_version":"1.0"},"canonical_sha256":"a36211961d1328099007a37b6ed150711d1c82788d04c5f8190f7898da7e47b1","source":{"kind":"arxiv","id":"2307.12616","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2307.12616","created_at":"2026-07-05T06:33:56Z"},{"alias_kind":"arxiv_version","alias_value":"2307.12616v1","created_at":"2026-07-05T06:33:56Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2307.12616","created_at":"2026-07-05T06:33:56Z"},{"alias_kind":"pith_short_12","alias_value":"UNRBDFQ5CMUA","created_at":"2026-07-05T06:33:56Z"},{"alias_kind":"pith_short_16","alias_value":"UNRBDFQ5CMUATEAH","created_at":"2026-07-05T06:33:56Z"},{"alias_kind":"pith_short_8","alias_value":"UNRBDFQ5","created_at":"2026-07-05T06:33:56Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2023:UNRBDFQ5CMUATEAHUN5W5UKQOE","target":"record","payload":{"canonical_record":{"source":{"id":"2307.12616","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.CV","submitted_at":"2023-07-24T08:44:25Z","cross_cats_sorted":["cs.AI"],"title_canon_sha256":"80d9b02cda6262b8fc9edce728d4a5038d3c1706d62e88150e0e62304110d4dc","abstract_canon_sha256":"ba6b9753f6393646bbb6f2742bea9c5ff4e3f7a85fb43871a8098e716b10d414"},"schema_version":"1.0"},"canonical_sha256":"a36211961d1328099007a37b6ed150711d1c82788d04c5f8190f7898da7e47b1","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T06:33:56.385870Z","signature_b64":"hGA7fv/pVugK5rWi6PO0EsTUBvASyhtH5vxu3Xoj1CnSlGPcW8Ew378wzShGRFZX7OltxIpnyPfs43tR7buyBw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"a36211961d1328099007a37b6ed150711d1c82788d04c5f8190f7898da7e47b1","last_reissued_at":"2026-07-05T06:33:56.385403Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T06:33:56.385403Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2307.12616","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":"2026-07-05T06:33:56Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"xmylz7tWdei4XOIKlbQvd8r11/X5IfLNCzEx4n98gPOUuqsBl85stQVTK0GZSZSqJRF7MOdgKa8zSFH+n7v1Ag==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-06T15:30:38.136264Z"},"content_sha256":"e417c6094b383056c1f4b1a02030b481fddfe0e21ba7d9782ed948d870575795","schema_version":"1.0","event_id":"sha256:e417c6094b383056c1f4b1a02030b481fddfe0e21ba7d9782ed948d870575795"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2023:UNRBDFQ5CMUATEAHUN5W5UKQOE","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"CTVIS: Consistent Training for Online Video Instance Segmentation","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":["cs.AI"],"primary_cat":"cs.CV","authors_text":"Chengxiang Fan, Chunhua Shen, Hao Chen, Kaining Ying, Lin Yuanbo Wu, Qing Zhong, Weian Mao, Yifan Liu, Yunzhi Zhuge, Zhenhua Wang","submitted_at":"2023-07-24T08:44:25Z","abstract_excerpt":"The discrimination of instance embeddings plays a vital role in associating instances across time for online video instance segmentation (VIS). Instance embedding learning is directly supervised by the contrastive loss computed upon the contrastive items (CIs), which are sets of anchor/positive/negative embeddings. Recent online VIS methods leverage CIs sourced from one reference frame only, which we argue is insufficient for learning highly discriminative embeddings. Intuitively, a possible strategy to enhance CIs is replicating the inference phase during training. To this end, we propose a s"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2307.12616","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/2307.12616/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":"2026-07-05T06:33:56Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"9SRs7PrTsqtb6/geNPqEl9PpShEeNxT4X4G1LOGcveWQ0m1eyVb0YEgxvI2gXhwJUVSmgGah/KKHyucK9mTPBA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-06T15:30:38.137388Z"},"content_sha256":"799fb9a29aabbc5ccd996bb41336f7f4bb70a151da038537b6be562bb24585fd","schema_version":"1.0","event_id":"sha256:799fb9a29aabbc5ccd996bb41336f7f4bb70a151da038537b6be562bb24585fd"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/UNRBDFQ5CMUATEAHUN5W5UKQOE/bundle.json","state_url":"https://pith.science/pith/UNRBDFQ5CMUATEAHUN5W5UKQOE/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/UNRBDFQ5CMUATEAHUN5W5UKQOE/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":"2026-08-06T15:30:38Z","links":{"resolver":"https://pith.science/pith/UNRBDFQ5CMUATEAHUN5W5UKQOE","bundle":"https://pith.science/pith/UNRBDFQ5CMUATEAHUN5W5UKQOE/bundle.json","state":"https://pith.science/pith/UNRBDFQ5CMUATEAHUN5W5UKQOE/state.json","well_known_bundle":"https://pith.science/.well-known/pith/UNRBDFQ5CMUATEAHUN5W5UKQOE/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2023:UNRBDFQ5CMUATEAHUN5W5UKQOE","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":"ba6b9753f6393646bbb6f2742bea9c5ff4e3f7a85fb43871a8098e716b10d414","cross_cats_sorted":["cs.AI"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.CV","submitted_at":"2023-07-24T08:44:25Z","title_canon_sha256":"80d9b02cda6262b8fc9edce728d4a5038d3c1706d62e88150e0e62304110d4dc"},"schema_version":"1.0","source":{"id":"2307.12616","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2307.12616","created_at":"2026-07-05T06:33:56Z"},{"alias_kind":"arxiv_version","alias_value":"2307.12616v1","created_at":"2026-07-05T06:33:56Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2307.12616","created_at":"2026-07-05T06:33:56Z"},{"alias_kind":"pith_short_12","alias_value":"UNRBDFQ5CMUA","created_at":"2026-07-05T06:33:56Z"},{"alias_kind":"pith_short_16","alias_value":"UNRBDFQ5CMUATEAH","created_at":"2026-07-05T06:33:56Z"},{"alias_kind":"pith_short_8","alias_value":"UNRBDFQ5","created_at":"2026-07-05T06:33:56Z"}],"graph_snapshots":[{"event_id":"sha256:799fb9a29aabbc5ccd996bb41336f7f4bb70a151da038537b6be562bb24585fd","target":"graph","created_at":"2026-07-05T06:33:56Z","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/2307.12616/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"The discrimination of instance embeddings plays a vital role in associating instances across time for online video instance segmentation (VIS). Instance embedding learning is directly supervised by the contrastive loss computed upon the contrastive items (CIs), which are sets of anchor/positive/negative embeddings. Recent online VIS methods leverage CIs sourced from one reference frame only, which we argue is insufficient for learning highly discriminative embeddings. Intuitively, a possible strategy to enhance CIs is replicating the inference phase during training. To this end, we propose a s","authors_text":"Chengxiang Fan, Chunhua Shen, Hao Chen, Kaining Ying, Lin Yuanbo Wu, Qing Zhong, Weian Mao, Yifan Liu, Yunzhi Zhuge, Zhenhua Wang","cross_cats":["cs.AI"],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.CV","submitted_at":"2023-07-24T08:44:25Z","title":"CTVIS: Consistent Training for Online Video Instance Segmentation"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2307.12616","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:e417c6094b383056c1f4b1a02030b481fddfe0e21ba7d9782ed948d870575795","target":"record","created_at":"2026-07-05T06:33:56Z","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":"ba6b9753f6393646bbb6f2742bea9c5ff4e3f7a85fb43871a8098e716b10d414","cross_cats_sorted":["cs.AI"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.CV","submitted_at":"2023-07-24T08:44:25Z","title_canon_sha256":"80d9b02cda6262b8fc9edce728d4a5038d3c1706d62e88150e0e62304110d4dc"},"schema_version":"1.0","source":{"id":"2307.12616","kind":"arxiv","version":1}},"canonical_sha256":"a36211961d1328099007a37b6ed150711d1c82788d04c5f8190f7898da7e47b1","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"a36211961d1328099007a37b6ed150711d1c82788d04c5f8190f7898da7e47b1","first_computed_at":"2026-07-05T06:33:56.385403Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T06:33:56.385403Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"hGA7fv/pVugK5rWi6PO0EsTUBvASyhtH5vxu3Xoj1CnSlGPcW8Ew378wzShGRFZX7OltxIpnyPfs43tR7buyBw==","signature_status":"signed_v1","signed_at":"2026-07-05T06:33:56.385870Z","signed_message":"canonical_sha256_bytes"},"source_id":"2307.12616","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:e417c6094b383056c1f4b1a02030b481fddfe0e21ba7d9782ed948d870575795","sha256:799fb9a29aabbc5ccd996bb41336f7f4bb70a151da038537b6be562bb24585fd"],"state_sha256":"d81aca566c116568041d362860c671d688a6ca4ef9a7495d18a111f911d456d5"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"2UfbESiuzsdpM1RIPMWY/4lwhfBe3Q+H8FS7sw9Ka/Fvn7mIsWSe7+gfvvL3wTOOgb6pst7o4t35cD6WYn9XDg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-06T15:30:38.143653Z","bundle_sha256":"9cf48fa6a2cecaf774a22b9e4208775388f956fbf5b98e4e4cba346df953a31e"}}