{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2025:W7BWHKPSW6VDLFQJZD4CZHFZU4","short_pith_number":"pith:W7BWHKPS","canonical_record":{"source":{"id":"2512.08048","kind":"arxiv","version":3},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.CV","submitted_at":"2025-12-08T21:16:44Z","cross_cats_sorted":[],"title_canon_sha256":"2435e9d09613537920b03af8f8c675a7a0fa64cba345a87153847beb65461853","abstract_canon_sha256":"4c9a7c0b12c2b332550e29ec0a26ae80ea25fd586d526e493cb40cf2297cdceb"},"schema_version":"1.0"},"canonical_sha256":"b7c363a9f2b7aa359609c8f82c9cb9a7012bacf96c3bb4d8da6727c5bb644dfb","source":{"kind":"arxiv","id":"2512.08048","version":3},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2512.08048","created_at":"2026-06-02T01:03:39Z"},{"alias_kind":"arxiv_version","alias_value":"2512.08048v3","created_at":"2026-06-02T01:03:39Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2512.08048","created_at":"2026-06-02T01:03:39Z"},{"alias_kind":"pith_short_12","alias_value":"W7BWHKPSW6VD","created_at":"2026-06-02T01:03:39Z"},{"alias_kind":"pith_short_16","alias_value":"W7BWHKPSW6VDLFQJ","created_at":"2026-06-02T01:03:39Z"},{"alias_kind":"pith_short_8","alias_value":"W7BWHKPS","created_at":"2026-06-02T01:03:39Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2025:W7BWHKPSW6VDLFQJZD4CZHFZU4","target":"record","payload":{"canonical_record":{"source":{"id":"2512.08048","kind":"arxiv","version":3},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.CV","submitted_at":"2025-12-08T21:16:44Z","cross_cats_sorted":[],"title_canon_sha256":"2435e9d09613537920b03af8f8c675a7a0fa64cba345a87153847beb65461853","abstract_canon_sha256":"4c9a7c0b12c2b332550e29ec0a26ae80ea25fd586d526e493cb40cf2297cdceb"},"schema_version":"1.0"},"canonical_sha256":"b7c363a9f2b7aa359609c8f82c9cb9a7012bacf96c3bb4d8da6727c5bb644dfb","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-06-02T01:03:39.453849Z","signature_b64":"0OvLWNDJR/WL7pUFm0ccAN1H5mGGgwGmzezqPm4FqTXznQBByInj2SNBOFggda7Jh4UjQXJpKzk3wvjTPnm2Bw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"b7c363a9f2b7aa359609c8f82c9cb9a7012bacf96c3bb4d8da6727c5bb644dfb","last_reissued_at":"2026-06-02T01:03:39.453360Z","signature_status":"signed_v1","first_computed_at":"2026-06-02T01:03:39.453360Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2512.08048","source_version":3,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-06-02T01:03:39Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"SwmggsuTb/0P0HGePAms6ECmuT+t1FUoNtOPhTBs1h9auI6vsracUJi7exbSt2RNC2MZ8kIP3vn0t1DndBt0AQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-05T06:30:44.432023Z"},"content_sha256":"e9f2071670b070248c69017b375a6d9eceb787dcd2e0d80970832a231bafa246","schema_version":"1.0","event_id":"sha256:e9f2071670b070248c69017b375a6d9eceb787dcd2e0d80970832a231bafa246"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2025:W7BWHKPSW6VDLFQJZD4CZHFZU4","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Family Matters: A Systematic Study of Spatial vs. Frequency Masking for Continual Test-Time Adaptation","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":[],"primary_cat":"cs.CV","authors_text":"Chandler Timm C. Doloriel, Fadi Al Machot, Habib Ullah, Kristian Hovde Liland, Muhammad salman siddiqui, Taki Hasan Rafi, Tor Kristian Stevik, Yeonguk Yu, Yunbei Zhang","submitted_at":"2025-12-08T21:16:44Z","abstract_excerpt":"Recent continual test-time adaptation (CTTA) methods adopt masked image modeling to stabilize learning under distribution shift, yet each treats its masking family F as a fixed design choice and innovates exclusively along the selection strategy S, leaving the family axis underexplored. We present a systematic empirical study that isolates this axis. Using a controlled CTTA instantiation -- Mask to Adapt (M2A) -- that fixes S = random and standard losses, we vary only F across spatial (patch, pixel) and frequency (all-band, low-band, high-band) families while keeping every other component iden"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2512.08048","kind":"arxiv","version":3},"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/2512.08048/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":"2026-06-02T01:03:39Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"+W9wT/rQS5l0AQA5bDQxVLnYiJ4yk/yOgItr/k5A3g0+/sEWPscrXCC5lMpRKDkq0o6YSKHiXpep1tQB0xMsBg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-05T06:30:44.432458Z"},"content_sha256":"e4d72aca227b7871d106ffa1a8a3989798edf046b8553fba62448ffd59273a6b","schema_version":"1.0","event_id":"sha256:e4d72aca227b7871d106ffa1a8a3989798edf046b8553fba62448ffd59273a6b"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/W7BWHKPSW6VDLFQJZD4CZHFZU4/bundle.json","state_url":"https://pith.science/pith/W7BWHKPSW6VDLFQJZD4CZHFZU4/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/W7BWHKPSW6VDLFQJZD4CZHFZU4/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":"2026-06-05T06:30:44Z","links":{"resolver":"https://pith.science/pith/W7BWHKPSW6VDLFQJZD4CZHFZU4","bundle":"https://pith.science/pith/W7BWHKPSW6VDLFQJZD4CZHFZU4/bundle.json","state":"https://pith.science/pith/W7BWHKPSW6VDLFQJZD4CZHFZU4/state.json","well_known_bundle":"https://pith.science/.well-known/pith/W7BWHKPSW6VDLFQJZD4CZHFZU4/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2025:W7BWHKPSW6VDLFQJZD4CZHFZU4","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":"4c9a7c0b12c2b332550e29ec0a26ae80ea25fd586d526e493cb40cf2297cdceb","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.CV","submitted_at":"2025-12-08T21:16:44Z","title_canon_sha256":"2435e9d09613537920b03af8f8c675a7a0fa64cba345a87153847beb65461853"},"schema_version":"1.0","source":{"id":"2512.08048","kind":"arxiv","version":3}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2512.08048","created_at":"2026-06-02T01:03:39Z"},{"alias_kind":"arxiv_version","alias_value":"2512.08048v3","created_at":"2026-06-02T01:03:39Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2512.08048","created_at":"2026-06-02T01:03:39Z"},{"alias_kind":"pith_short_12","alias_value":"W7BWHKPSW6VD","created_at":"2026-06-02T01:03:39Z"},{"alias_kind":"pith_short_16","alias_value":"W7BWHKPSW6VDLFQJ","created_at":"2026-06-02T01:03:39Z"},{"alias_kind":"pith_short_8","alias_value":"W7BWHKPS","created_at":"2026-06-02T01:03:39Z"}],"graph_snapshots":[{"event_id":"sha256:e4d72aca227b7871d106ffa1a8a3989798edf046b8553fba62448ffd59273a6b","target":"graph","created_at":"2026-06-02T01:03:39Z","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/2512.08048/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Recent continual test-time adaptation (CTTA) methods adopt masked image modeling to stabilize learning under distribution shift, yet each treats its masking family F as a fixed design choice and innovates exclusively along the selection strategy S, leaving the family axis underexplored. We present a systematic empirical study that isolates this axis. Using a controlled CTTA instantiation -- Mask to Adapt (M2A) -- that fixes S = random and standard losses, we vary only F across spatial (patch, pixel) and frequency (all-band, low-band, high-band) families while keeping every other component iden","authors_text":"Chandler Timm C. Doloriel, Fadi Al Machot, Habib Ullah, Kristian Hovde Liland, Muhammad salman siddiqui, Taki Hasan Rafi, Tor Kristian Stevik, Yeonguk Yu, Yunbei Zhang","cross_cats":[],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.CV","submitted_at":"2025-12-08T21:16:44Z","title":"Family Matters: A Systematic Study of Spatial vs. Frequency Masking for Continual Test-Time Adaptation"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2512.08048","kind":"arxiv","version":3},"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:e9f2071670b070248c69017b375a6d9eceb787dcd2e0d80970832a231bafa246","target":"record","created_at":"2026-06-02T01:03:39Z","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":"4c9a7c0b12c2b332550e29ec0a26ae80ea25fd586d526e493cb40cf2297cdceb","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.CV","submitted_at":"2025-12-08T21:16:44Z","title_canon_sha256":"2435e9d09613537920b03af8f8c675a7a0fa64cba345a87153847beb65461853"},"schema_version":"1.0","source":{"id":"2512.08048","kind":"arxiv","version":3}},"canonical_sha256":"b7c363a9f2b7aa359609c8f82c9cb9a7012bacf96c3bb4d8da6727c5bb644dfb","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"b7c363a9f2b7aa359609c8f82c9cb9a7012bacf96c3bb4d8da6727c5bb644dfb","first_computed_at":"2026-06-02T01:03:39.453360Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-06-02T01:03:39.453360Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"0OvLWNDJR/WL7pUFm0ccAN1H5mGGgwGmzezqPm4FqTXznQBByInj2SNBOFggda7Jh4UjQXJpKzk3wvjTPnm2Bw==","signature_status":"signed_v1","signed_at":"2026-06-02T01:03:39.453849Z","signed_message":"canonical_sha256_bytes"},"source_id":"2512.08048","source_kind":"arxiv","source_version":3}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:e9f2071670b070248c69017b375a6d9eceb787dcd2e0d80970832a231bafa246","sha256:e4d72aca227b7871d106ffa1a8a3989798edf046b8553fba62448ffd59273a6b"],"state_sha256":"e56a19a055575dcfae2e7c42cb390f8ff5578d5be90f679fd1d1bebd3e4ddc27"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"yBqG7spxoCLB5p/dRF56ai97Z+zW9JsiFHd0cMPthZGUNGQ9VXJdNhqa2P+NUV4UlIrkeKC9CokwvlcxgxvfBg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-05T06:30:44.434678Z","bundle_sha256":"d491a9cd99686981a1324c7125fd93eaf04559784ce2f19ac515a9ec5d84a0f8"}}