{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2024:4SBFA2RHKHK4ZCCAFTZNMXQ6IK","short_pith_number":"pith:4SBFA2RH","canonical_record":{"source":{"id":"2406.13939","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.CV","submitted_at":"2024-06-20T02:16:23Z","cross_cats_sorted":[],"title_canon_sha256":"a17273ceeaf815de932b2fcbd38b0ebee627e78709e15d076f4b39deb49b9219","abstract_canon_sha256":"4ec1a26c60416a864bd318a3938702a531608d2a21d4c6156a5e55edf3cc1dab"},"schema_version":"1.0"},"canonical_sha256":"e482506a2751d5cc88402cf2d65e1e42993916cc2557c86dd091152dc0fcea68","source":{"kind":"arxiv","id":"2406.13939","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2406.13939","created_at":"2026-07-05T08:34:36Z"},{"alias_kind":"arxiv_version","alias_value":"2406.13939v1","created_at":"2026-07-05T08:34:36Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2406.13939","created_at":"2026-07-05T08:34:36Z"},{"alias_kind":"pith_short_12","alias_value":"4SBFA2RHKHK4","created_at":"2026-07-05T08:34:36Z"},{"alias_kind":"pith_short_16","alias_value":"4SBFA2RHKHK4ZCCA","created_at":"2026-07-05T08:34:36Z"},{"alias_kind":"pith_short_8","alias_value":"4SBFA2RH","created_at":"2026-07-05T08:34:36Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2024:4SBFA2RHKHK4ZCCAFTZNMXQ6IK","target":"record","payload":{"canonical_record":{"source":{"id":"2406.13939","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.CV","submitted_at":"2024-06-20T02:16:23Z","cross_cats_sorted":[],"title_canon_sha256":"a17273ceeaf815de932b2fcbd38b0ebee627e78709e15d076f4b39deb49b9219","abstract_canon_sha256":"4ec1a26c60416a864bd318a3938702a531608d2a21d4c6156a5e55edf3cc1dab"},"schema_version":"1.0"},"canonical_sha256":"e482506a2751d5cc88402cf2d65e1e42993916cc2557c86dd091152dc0fcea68","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T08:34:36.689672Z","signature_b64":"jx+6MbmmFOAs6vckeaxRRu2oX5PjCozUwGnV7w9zPCg5pjJ4MZNSr4ZpDNJt881inif/N6XF4BlVy5ZT4XmyDw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"e482506a2751d5cc88402cf2d65e1e42993916cc2557c86dd091152dc0fcea68","last_reissued_at":"2026-07-05T08:34:36.689306Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T08:34:36.689306Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2406.13939","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":"2026-07-05T08:34:36Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"FTwtAtDLuLGJS/4tqLCJXcM7v82gAgozTnqAWzmDqiovZGO5kSYIoT7TZ3u6YxPgLrM18ZhJp9JlK/Jk38uhDg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-18T18:52:07.454350Z"},"content_sha256":"05f5d5baf602609141646f7518f84e8b8fc7ab9992a8e2dd4605a0e827ef088b","schema_version":"1.0","event_id":"sha256:05f5d5baf602609141646f7518f84e8b8fc7ab9992a8e2dd4605a0e827ef088b"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2024:4SBFA2RHKHK4ZCCAFTZNMXQ6IK","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"2nd Place Solution for MeViS Track in CVPR 2024 PVUW Workshop: Motion Expression guided Video Segmentation","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":[],"primary_cat":"cs.CV","authors_text":"Bin Cao, Bo Zhao, Jing Liu, Xingjian He, Xuanxu Lin, Yisi Zhang","submitted_at":"2024-06-20T02:16:23Z","abstract_excerpt":"Motion Expression guided Video Segmentation is a challenging task that aims at segmenting objects in the video based on natural language expressions with motion descriptions. Unlike the previous referring video object segmentation (RVOS), this task focuses more on the motion in video content for language-guided video object segmentation, requiring an enhanced ability to model longer temporal, motion-oriented vision-language data. In this report, based on the RVOS methods, we successfully introduce mask information obtained from the video instance segmentation model as preliminary information f"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2406.13939","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/2406.13939/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":"2026-07-05T08:34:36Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"RiFjcKr/Fgvq7IgQpQ0+94pn/TBNZkwISvMB2RmPdVdzS9QABLkgBNQ+4pvlT+qy3v56REtyAnf4Y7TBI6CDDA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-18T18:52:07.454956Z"},"content_sha256":"e1b9330c420ad4dd5d3a378b035059998d9437a49166f9f3ec661aca0ce8470a","schema_version":"1.0","event_id":"sha256:e1b9330c420ad4dd5d3a378b035059998d9437a49166f9f3ec661aca0ce8470a"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/4SBFA2RHKHK4ZCCAFTZNMXQ6IK/bundle.json","state_url":"https://pith.science/pith/4SBFA2RHKHK4ZCCAFTZNMXQ6IK/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/4SBFA2RHKHK4ZCCAFTZNMXQ6IK/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":"2026-08-18T18:52:07Z","links":{"resolver":"https://pith.science/pith/4SBFA2RHKHK4ZCCAFTZNMXQ6IK","bundle":"https://pith.science/pith/4SBFA2RHKHK4ZCCAFTZNMXQ6IK/bundle.json","state":"https://pith.science/pith/4SBFA2RHKHK4ZCCAFTZNMXQ6IK/state.json","well_known_bundle":"https://pith.science/.well-known/pith/4SBFA2RHKHK4ZCCAFTZNMXQ6IK/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2024:4SBFA2RHKHK4ZCCAFTZNMXQ6IK","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":"4ec1a26c60416a864bd318a3938702a531608d2a21d4c6156a5e55edf3cc1dab","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.CV","submitted_at":"2024-06-20T02:16:23Z","title_canon_sha256":"a17273ceeaf815de932b2fcbd38b0ebee627e78709e15d076f4b39deb49b9219"},"schema_version":"1.0","source":{"id":"2406.13939","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2406.13939","created_at":"2026-07-05T08:34:36Z"},{"alias_kind":"arxiv_version","alias_value":"2406.13939v1","created_at":"2026-07-05T08:34:36Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2406.13939","created_at":"2026-07-05T08:34:36Z"},{"alias_kind":"pith_short_12","alias_value":"4SBFA2RHKHK4","created_at":"2026-07-05T08:34:36Z"},{"alias_kind":"pith_short_16","alias_value":"4SBFA2RHKHK4ZCCA","created_at":"2026-07-05T08:34:36Z"},{"alias_kind":"pith_short_8","alias_value":"4SBFA2RH","created_at":"2026-07-05T08:34:36Z"}],"graph_snapshots":[{"event_id":"sha256:e1b9330c420ad4dd5d3a378b035059998d9437a49166f9f3ec661aca0ce8470a","target":"graph","created_at":"2026-07-05T08:34:36Z","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/2406.13939/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Motion Expression guided Video Segmentation is a challenging task that aims at segmenting objects in the video based on natural language expressions with motion descriptions. Unlike the previous referring video object segmentation (RVOS), this task focuses more on the motion in video content for language-guided video object segmentation, requiring an enhanced ability to model longer temporal, motion-oriented vision-language data. In this report, based on the RVOS methods, we successfully introduce mask information obtained from the video instance segmentation model as preliminary information f","authors_text":"Bin Cao, Bo Zhao, Jing Liu, Xingjian He, Xuanxu Lin, Yisi Zhang","cross_cats":[],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.CV","submitted_at":"2024-06-20T02:16:23Z","title":"2nd Place Solution for MeViS Track in CVPR 2024 PVUW Workshop: Motion Expression guided Video Segmentation"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2406.13939","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":"sha256:05f5d5baf602609141646f7518f84e8b8fc7ab9992a8e2dd4605a0e827ef088b","target":"record","created_at":"2026-07-05T08:34:36Z","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":"4ec1a26c60416a864bd318a3938702a531608d2a21d4c6156a5e55edf3cc1dab","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.CV","submitted_at":"2024-06-20T02:16:23Z","title_canon_sha256":"a17273ceeaf815de932b2fcbd38b0ebee627e78709e15d076f4b39deb49b9219"},"schema_version":"1.0","source":{"id":"2406.13939","kind":"arxiv","version":1}},"canonical_sha256":"e482506a2751d5cc88402cf2d65e1e42993916cc2557c86dd091152dc0fcea68","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"e482506a2751d5cc88402cf2d65e1e42993916cc2557c86dd091152dc0fcea68","first_computed_at":"2026-07-05T08:34:36.689306Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T08:34:36.689306Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"jx+6MbmmFOAs6vckeaxRRu2oX5PjCozUwGnV7w9zPCg5pjJ4MZNSr4ZpDNJt881inif/N6XF4BlVy5ZT4XmyDw==","signature_status":"signed_v1","signed_at":"2026-07-05T08:34:36.689672Z","signed_message":"canonical_sha256_bytes"},"source_id":"2406.13939","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:05f5d5baf602609141646f7518f84e8b8fc7ab9992a8e2dd4605a0e827ef088b","sha256:e1b9330c420ad4dd5d3a378b035059998d9437a49166f9f3ec661aca0ce8470a"],"state_sha256":"8ac291241f04400cb7da53a08d55e17ac72fb72542e2357958a092af963382d1"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"VV+zpB/svUPJviBTzZB99jelj6by2nH7yC4rTsKR5eiRhcNk0BkQ9JXtX96GW+gmPIjKRtWYyD3voq6wd3xnCQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-18T18:52:07.460098Z","bundle_sha256":"402d81bddb4b5893172b8492ef233687a09a88982f777e958f4bca81a3f13e82"}}