{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2022:6QBODRVAWT67OZHRV6TFYIH4NP","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":"b633722a9eb5a89cc3dcf0396610a0a927debc03acdbfe3fa51003cbd1b5f1ee","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by-nc-sa/4.0/","primary_cat":"cs.CV","submitted_at":"2022-07-14T17:59:37Z","title_canon_sha256":"f5ed1d8f3f0ec1cacf3075fb4b2d2d5765d8f27ef21f799902883abee65e33fd"},"schema_version":"1.0","source":{"id":"2207.07115","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2207.07115","created_at":"2026-07-05T04:40:55Z"},{"alias_kind":"arxiv_version","alias_value":"2207.07115v2","created_at":"2026-07-05T04:40:55Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2207.07115","created_at":"2026-07-05T04:40:55Z"},{"alias_kind":"pith_short_12","alias_value":"6QBODRVAWT67","created_at":"2026-07-05T04:40:55Z"},{"alias_kind":"pith_short_16","alias_value":"6QBODRVAWT67OZHR","created_at":"2026-07-05T04:40:55Z"},{"alias_kind":"pith_short_8","alias_value":"6QBODRVA","created_at":"2026-07-05T04:40:55Z"}],"graph_snapshots":[{"event_id":"sha256:ac4ceea6752538f052972d05368e73100c55fef0b68816866b9875645e0d61b0","target":"graph","created_at":"2026-07-05T04:40:55Z","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/2207.07115/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We present XMem, a video object segmentation architecture for long videos with unified feature memory stores inspired by the Atkinson-Shiffrin memory model. Prior work on video object segmentation typically only uses one type of feature memory. For videos longer than a minute, a single feature memory model tightly links memory consumption and accuracy. In contrast, following the Atkinson-Shiffrin model, we develop an architecture that incorporates multiple independent yet deeply-connected feature memory stores: a rapidly updated sensory memory, a high-resolution working memory, and a compact t","authors_text":"Alexander G. Schwing, Ho Kei Cheng","cross_cats":[],"headline":"","license":"http://creativecommons.org/licenses/by-nc-sa/4.0/","primary_cat":"cs.CV","submitted_at":"2022-07-14T17:59:37Z","title":"XMem: Long-Term Video Object Segmentation with an Atkinson-Shiffrin Memory Model"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2207.07115","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:fee820f31d48d5fbe62f324e105a1df42e8a40326341a32f35d151dfd0a978ee","target":"record","created_at":"2026-07-05T04:40:55Z","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":"b633722a9eb5a89cc3dcf0396610a0a927debc03acdbfe3fa51003cbd1b5f1ee","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by-nc-sa/4.0/","primary_cat":"cs.CV","submitted_at":"2022-07-14T17:59:37Z","title_canon_sha256":"f5ed1d8f3f0ec1cacf3075fb4b2d2d5765d8f27ef21f799902883abee65e33fd"},"schema_version":"1.0","source":{"id":"2207.07115","kind":"arxiv","version":2}},"canonical_sha256":"f402e1c6a0b4fdf764f1afa65c20fc6bd1acd2929434fbd9ea8f7b4137708b50","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"f402e1c6a0b4fdf764f1afa65c20fc6bd1acd2929434fbd9ea8f7b4137708b50","first_computed_at":"2026-07-05T04:40:55.843387Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T04:40:55.843387Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"XJ+8SikZuv8rO7skRE43E2kYiwSxcTmxlbNeTlQHebiDBUr911YQZ4sFkZwA8bP0D9R3duabkSQpsc7cz9kYAw==","signature_status":"signed_v1","signed_at":"2026-07-05T04:40:55.843779Z","signed_message":"canonical_sha256_bytes"},"source_id":"2207.07115","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:fee820f31d48d5fbe62f324e105a1df42e8a40326341a32f35d151dfd0a978ee","sha256:ac4ceea6752538f052972d05368e73100c55fef0b68816866b9875645e0d61b0"],"state_sha256":"feff1f98a2fb0d16347b2f4909ba7de3da7ac63144cca37e17dd8973252b7812"}