{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2026:B43AGN6DRMEIEVPCQPN64PIDSB","short_pith_number":"pith:B43AGN6D","canonical_record":{"source":{"id":"2607.02938","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.LG","submitted_at":"2026-07-03T04:21:19Z","cross_cats_sorted":[],"title_canon_sha256":"d66a03831a1a1171487745c3e367ed169e75b6376182ad405cf5050e8809430c","abstract_canon_sha256":"02ed8cebad43e59d1aa4b919602389e01b41f323e29826d496a57eada3525360"},"schema_version":"1.0"},"canonical_sha256":"0f360337c38b088255e283dbee3d03907de94a2f6a90a8718883d75b08bf7087","source":{"kind":"arxiv","id":"2607.02938","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2607.02938","created_at":"2026-07-07T01:16:37Z"},{"alias_kind":"arxiv_version","alias_value":"2607.02938v1","created_at":"2026-07-07T01:16:37Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2607.02938","created_at":"2026-07-07T01:16:37Z"},{"alias_kind":"pith_short_12","alias_value":"B43AGN6DRMEI","created_at":"2026-07-07T01:16:37Z"},{"alias_kind":"pith_short_16","alias_value":"B43AGN6DRMEIEVPC","created_at":"2026-07-07T01:16:37Z"},{"alias_kind":"pith_short_8","alias_value":"B43AGN6D","created_at":"2026-07-07T01:16:37Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2026:B43AGN6DRMEIEVPCQPN64PIDSB","target":"record","payload":{"canonical_record":{"source":{"id":"2607.02938","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.LG","submitted_at":"2026-07-03T04:21:19Z","cross_cats_sorted":[],"title_canon_sha256":"d66a03831a1a1171487745c3e367ed169e75b6376182ad405cf5050e8809430c","abstract_canon_sha256":"02ed8cebad43e59d1aa4b919602389e01b41f323e29826d496a57eada3525360"},"schema_version":"1.0"},"canonical_sha256":"0f360337c38b088255e283dbee3d03907de94a2f6a90a8718883d75b08bf7087","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-07T01:16:37.102454Z","signature_b64":"7L5MgLOxGnsUR51Sl0EXo04A+UzXOyQupWOlODDv4RIFJ6v4ywMSfufr6RWbJ0Dlulkeu8L5UZ5jDbGrY+i/AA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"0f360337c38b088255e283dbee3d03907de94a2f6a90a8718883d75b08bf7087","last_reissued_at":"2026-07-07T01:16:37.101990Z","signature_status":"signed_v1","first_computed_at":"2026-07-07T01:16:37.101990Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2607.02938","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":"2026-07-07T01:16:37Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"8ZrrVQdIghuMH/zm2VaLYAhRGn3/YCcl5Csw2xnkxT90sU9YYjpb/ZbFORh5NM60VpMldQJPt2hlEtM9rWuXDw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-09T12:05:16.125173Z"},"content_sha256":"c3687327cf6734f08ed0e82b586ccb815b6f881d2c602365bf630070f669d73b","schema_version":"1.0","event_id":"sha256:c3687327cf6734f08ed0e82b586ccb815b6f881d2c602365bf630070f669d73b"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2026:B43AGN6DRMEIEVPCQPN64PIDSB","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Missingness as Signal: Channel-Independent Spectrogram Learning for Clinical Time Series Prediction","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cs.LG","authors_text":"Charmgil Hong, Soyeon Park","submitted_at":"2026-07-03T04:21:19Z","abstract_excerpt":"Clinical time series prediction in intensive care units remains challenging due to heterogeneous physiological variables and informative missingness. The presence or absence of a measurement can reflect clinical decisions and patient severity, and thus missingness can serve as a predictive signal rather than a simple data artifact. This work presents CISM, a Channel-Independent Spectrogram framework with a Missingness stream for clinical multivariate time series prediction. CISM converts each clinical variable into a variable-wise time-frequency spectrogram, preserves variable identity through"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2607.02938","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/2607.02938/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":"2026-07-07T01:16:37Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Kthj7PmQ5fObLHfXMdk4X8fFbhrvwSjYsiobQnt5GGsn+N3B1A0tD0O+/j3XdFUBZAwagwTj41db3UodzqeWAA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-09T12:05:16.125679Z"},"content_sha256":"77092a484bfac8fb93707d7699cbb9a1f98c96236967970b7414351ce85f347a","schema_version":"1.0","event_id":"sha256:77092a484bfac8fb93707d7699cbb9a1f98c96236967970b7414351ce85f347a"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/B43AGN6DRMEIEVPCQPN64PIDSB/bundle.json","state_url":"https://pith.science/pith/B43AGN6DRMEIEVPCQPN64PIDSB/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/B43AGN6DRMEIEVPCQPN64PIDSB/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":"2026-08-09T12:05:16Z","links":{"resolver":"https://pith.science/pith/B43AGN6DRMEIEVPCQPN64PIDSB","bundle":"https://pith.science/pith/B43AGN6DRMEIEVPCQPN64PIDSB/bundle.json","state":"https://pith.science/pith/B43AGN6DRMEIEVPCQPN64PIDSB/state.json","well_known_bundle":"https://pith.science/.well-known/pith/B43AGN6DRMEIEVPCQPN64PIDSB/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2026:B43AGN6DRMEIEVPCQPN64PIDSB","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":"02ed8cebad43e59d1aa4b919602389e01b41f323e29826d496a57eada3525360","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.LG","submitted_at":"2026-07-03T04:21:19Z","title_canon_sha256":"d66a03831a1a1171487745c3e367ed169e75b6376182ad405cf5050e8809430c"},"schema_version":"1.0","source":{"id":"2607.02938","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2607.02938","created_at":"2026-07-07T01:16:37Z"},{"alias_kind":"arxiv_version","alias_value":"2607.02938v1","created_at":"2026-07-07T01:16:37Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2607.02938","created_at":"2026-07-07T01:16:37Z"},{"alias_kind":"pith_short_12","alias_value":"B43AGN6DRMEI","created_at":"2026-07-07T01:16:37Z"},{"alias_kind":"pith_short_16","alias_value":"B43AGN6DRMEIEVPC","created_at":"2026-07-07T01:16:37Z"},{"alias_kind":"pith_short_8","alias_value":"B43AGN6D","created_at":"2026-07-07T01:16:37Z"}],"graph_snapshots":[{"event_id":"sha256:77092a484bfac8fb93707d7699cbb9a1f98c96236967970b7414351ce85f347a","target":"graph","created_at":"2026-07-07T01:16:37Z","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/2607.02938/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Clinical time series prediction in intensive care units remains challenging due to heterogeneous physiological variables and informative missingness. The presence or absence of a measurement can reflect clinical decisions and patient severity, and thus missingness can serve as a predictive signal rather than a simple data artifact. This work presents CISM, a Channel-Independent Spectrogram framework with a Missingness stream for clinical multivariate time series prediction. CISM converts each clinical variable into a variable-wise time-frequency spectrogram, preserves variable identity through","authors_text":"Charmgil Hong, Soyeon Park","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.LG","submitted_at":"2026-07-03T04:21:19Z","title":"Missingness as Signal: Channel-Independent Spectrogram Learning for Clinical Time Series Prediction"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2607.02938","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:c3687327cf6734f08ed0e82b586ccb815b6f881d2c602365bf630070f669d73b","target":"record","created_at":"2026-07-07T01:16:37Z","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":"02ed8cebad43e59d1aa4b919602389e01b41f323e29826d496a57eada3525360","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.LG","submitted_at":"2026-07-03T04:21:19Z","title_canon_sha256":"d66a03831a1a1171487745c3e367ed169e75b6376182ad405cf5050e8809430c"},"schema_version":"1.0","source":{"id":"2607.02938","kind":"arxiv","version":1}},"canonical_sha256":"0f360337c38b088255e283dbee3d03907de94a2f6a90a8718883d75b08bf7087","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"0f360337c38b088255e283dbee3d03907de94a2f6a90a8718883d75b08bf7087","first_computed_at":"2026-07-07T01:16:37.101990Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-07T01:16:37.101990Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"7L5MgLOxGnsUR51Sl0EXo04A+UzXOyQupWOlODDv4RIFJ6v4ywMSfufr6RWbJ0Dlulkeu8L5UZ5jDbGrY+i/AA==","signature_status":"signed_v1","signed_at":"2026-07-07T01:16:37.102454Z","signed_message":"canonical_sha256_bytes"},"source_id":"2607.02938","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:c3687327cf6734f08ed0e82b586ccb815b6f881d2c602365bf630070f669d73b","sha256:77092a484bfac8fb93707d7699cbb9a1f98c96236967970b7414351ce85f347a"],"state_sha256":"00241f3daf26025dc73dc627987b69b16d04db991c33e9bf6231fc2a150ee86e"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"RLldpZqj/YMmsDYgagkfjs/N8BCpnZDbuyudui6ra2qFwB9N78+CMvOVDtbb5JX7dr8IuJl31dwzvWTtTF3AAw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-09T12:05:16.131291Z","bundle_sha256":"48d11c4dbc3bb347a4000ced0bfbb04f5c43a3df70e4b013f306b8c709c8d782"}}