{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2021:O354QEJEWRNIZ72EN7YYJXF6WK","short_pith_number":"pith:O354QEJE","canonical_record":{"source":{"id":"2108.01439","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","primary_cat":"cs.CV","submitted_at":"2021-07-23T16:19:35Z","cross_cats_sorted":[],"title_canon_sha256":"963933b2dee272364c23bdf3f36bc8f7ae955349f9403e00ee84699d2043aa40","abstract_canon_sha256":"e9bd422825231eaeada85fb8674b40d1e9a3189af7002dbfddd0d86e1d5f65c7"},"schema_version":"1.0"},"canonical_sha256":"76fbc81124b45a8cff446ff184dcbeb28aebd7439bf9482ac4a5302ba7b03534","source":{"kind":"arxiv","id":"2108.01439","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2108.01439","created_at":"2026-07-05T03:03:02Z"},{"alias_kind":"arxiv_version","alias_value":"2108.01439v1","created_at":"2026-07-05T03:03:02Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2108.01439","created_at":"2026-07-05T03:03:02Z"},{"alias_kind":"pith_short_12","alias_value":"O354QEJEWRNI","created_at":"2026-07-05T03:03:02Z"},{"alias_kind":"pith_short_16","alias_value":"O354QEJEWRNIZ72E","created_at":"2026-07-05T03:03:02Z"},{"alias_kind":"pith_short_8","alias_value":"O354QEJE","created_at":"2026-07-05T03:03:02Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2021:O354QEJEWRNIZ72EN7YYJXF6WK","target":"record","payload":{"canonical_record":{"source":{"id":"2108.01439","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","primary_cat":"cs.CV","submitted_at":"2021-07-23T16:19:35Z","cross_cats_sorted":[],"title_canon_sha256":"963933b2dee272364c23bdf3f36bc8f7ae955349f9403e00ee84699d2043aa40","abstract_canon_sha256":"e9bd422825231eaeada85fb8674b40d1e9a3189af7002dbfddd0d86e1d5f65c7"},"schema_version":"1.0"},"canonical_sha256":"76fbc81124b45a8cff446ff184dcbeb28aebd7439bf9482ac4a5302ba7b03534","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T03:03:02.966673Z","signature_b64":"U1HZfEm0Z3DuzjDuMlPcf/uZtjcU2f4dKbuUWFpCnIhpI7QZjxqooSDu+Hg/JUOcYqcydfVyLk5s1h38juSxDA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"76fbc81124b45a8cff446ff184dcbeb28aebd7439bf9482ac4a5302ba7b03534","last_reissued_at":"2026-07-05T03:03:02.966231Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T03:03:02.966231Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2108.01439","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":"2026-07-05T03:03:02Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"J4/JhA5AVYR0duE0Q+xcYbpiZ1lr3r9o0x+0+Y0GzUKs9fQJWy0bsnM2FVyWwyJUvKnqTO1TZNS9HIxbT2EqBw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-03T19:52:58.125674Z"},"content_sha256":"da98f9509021c60d89c2150078d3589f1d86639834db7bb1ed44f02508d79e20","schema_version":"1.0","event_id":"sha256:da98f9509021c60d89c2150078d3589f1d86639834db7bb1ed44f02508d79e20"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2021:O354QEJEWRNIZ72EN7YYJXF6WK","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Continuous Non-Invasive Eye Tracking In Intensive Care","license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","headline":"","cross_cats":[],"primary_cat":"cs.CV","authors_text":"Ahmed Al-Hindawi, Marcela Paula Vizcaychipi, Yiannis Demiris","submitted_at":"2021-07-23T16:19:35Z","abstract_excerpt":"Delirium, an acute confusional state, is a common occurrence in Intensive Care Units (ICUs). Patients who develop delirium have globally worse outcomes than those who do not and thus the diagnosis of delirium is of importance. Current diagnostic methods have several limitations leading to the suggestion of eye-tracking for its diagnosis through in-attention. To ascertain the requirements for an eye-tracking system in an adult ICU, measurements were carried out at Chelsea & Westminster Hospital NHS Foundation Trust. Clinical criteria guided empirical requirements of invasiveness and calibration"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2108.01439","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/2108.01439/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":"2026-07-05T03:03:02Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"rMWrJhxcDLR8NBOd8vOAFUTOafybnOxBtYM1yOoSMTUzwQTwkaYnj+0XiNmyTb8/ooh0f4r9rmv9Z24eTygAAQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-03T19:52:58.126105Z"},"content_sha256":"1db0a2f62174141c3a2b4a091287269868f31796f7708e3edcaf144b0a8cf952","schema_version":"1.0","event_id":"sha256:1db0a2f62174141c3a2b4a091287269868f31796f7708e3edcaf144b0a8cf952"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/O354QEJEWRNIZ72EN7YYJXF6WK/bundle.json","state_url":"https://pith.science/pith/O354QEJEWRNIZ72EN7YYJXF6WK/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/O354QEJEWRNIZ72EN7YYJXF6WK/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":"2026-08-03T19:52:58Z","links":{"resolver":"https://pith.science/pith/O354QEJEWRNIZ72EN7YYJXF6WK","bundle":"https://pith.science/pith/O354QEJEWRNIZ72EN7YYJXF6WK/bundle.json","state":"https://pith.science/pith/O354QEJEWRNIZ72EN7YYJXF6WK/state.json","well_known_bundle":"https://pith.science/.well-known/pith/O354QEJEWRNIZ72EN7YYJXF6WK/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2021:O354QEJEWRNIZ72EN7YYJXF6WK","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":"e9bd422825231eaeada85fb8674b40d1e9a3189af7002dbfddd0d86e1d5f65c7","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","primary_cat":"cs.CV","submitted_at":"2021-07-23T16:19:35Z","title_canon_sha256":"963933b2dee272364c23bdf3f36bc8f7ae955349f9403e00ee84699d2043aa40"},"schema_version":"1.0","source":{"id":"2108.01439","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2108.01439","created_at":"2026-07-05T03:03:02Z"},{"alias_kind":"arxiv_version","alias_value":"2108.01439v1","created_at":"2026-07-05T03:03:02Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2108.01439","created_at":"2026-07-05T03:03:02Z"},{"alias_kind":"pith_short_12","alias_value":"O354QEJEWRNI","created_at":"2026-07-05T03:03:02Z"},{"alias_kind":"pith_short_16","alias_value":"O354QEJEWRNIZ72E","created_at":"2026-07-05T03:03:02Z"},{"alias_kind":"pith_short_8","alias_value":"O354QEJE","created_at":"2026-07-05T03:03:02Z"}],"graph_snapshots":[{"event_id":"sha256:1db0a2f62174141c3a2b4a091287269868f31796f7708e3edcaf144b0a8cf952","target":"graph","created_at":"2026-07-05T03:03:02Z","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/2108.01439/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Delirium, an acute confusional state, is a common occurrence in Intensive Care Units (ICUs). Patients who develop delirium have globally worse outcomes than those who do not and thus the diagnosis of delirium is of importance. Current diagnostic methods have several limitations leading to the suggestion of eye-tracking for its diagnosis through in-attention. To ascertain the requirements for an eye-tracking system in an adult ICU, measurements were carried out at Chelsea & Westminster Hospital NHS Foundation Trust. Clinical criteria guided empirical requirements of invasiveness and calibration","authors_text":"Ahmed Al-Hindawi, Marcela Paula Vizcaychipi, Yiannis Demiris","cross_cats":[],"headline":"","license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","primary_cat":"cs.CV","submitted_at":"2021-07-23T16:19:35Z","title":"Continuous Non-Invasive Eye Tracking In Intensive Care"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2108.01439","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:da98f9509021c60d89c2150078d3589f1d86639834db7bb1ed44f02508d79e20","target":"record","created_at":"2026-07-05T03:03:02Z","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":"e9bd422825231eaeada85fb8674b40d1e9a3189af7002dbfddd0d86e1d5f65c7","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","primary_cat":"cs.CV","submitted_at":"2021-07-23T16:19:35Z","title_canon_sha256":"963933b2dee272364c23bdf3f36bc8f7ae955349f9403e00ee84699d2043aa40"},"schema_version":"1.0","source":{"id":"2108.01439","kind":"arxiv","version":1}},"canonical_sha256":"76fbc81124b45a8cff446ff184dcbeb28aebd7439bf9482ac4a5302ba7b03534","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"76fbc81124b45a8cff446ff184dcbeb28aebd7439bf9482ac4a5302ba7b03534","first_computed_at":"2026-07-05T03:03:02.966231Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T03:03:02.966231Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"U1HZfEm0Z3DuzjDuMlPcf/uZtjcU2f4dKbuUWFpCnIhpI7QZjxqooSDu+Hg/JUOcYqcydfVyLk5s1h38juSxDA==","signature_status":"signed_v1","signed_at":"2026-07-05T03:03:02.966673Z","signed_message":"canonical_sha256_bytes"},"source_id":"2108.01439","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:da98f9509021c60d89c2150078d3589f1d86639834db7bb1ed44f02508d79e20","sha256:1db0a2f62174141c3a2b4a091287269868f31796f7708e3edcaf144b0a8cf952"],"state_sha256":"294204aa05d6bb19242d5a6e9d987fe9b360acb2d7ec46ea79870d5aec017d46"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"9BcNWUqqx9euD1lXyHiVv/E9w/qCRwsOPnCOCpH9ovL5HA1b49Ib+ZK8RLrbjm47dlYOMT35RZlCJET8vQaMBQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-03T19:52:58.128687Z","bundle_sha256":"7243b86b76d1bd6c1786f675bf9cde80dc78ecc94f06c25742988eeac550b75f"}}