{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2024:VRHTPIRX63KBMGGBDXDEKCFVGF","short_pith_number":"pith:VRHTPIRX","canonical_record":{"source":{"id":"2406.06448","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","primary_cat":"cs.HC","submitted_at":"2024-06-10T16:39:21Z","cross_cats_sorted":[],"title_canon_sha256":"33367c87e2e709c6823dc009a7441fabc588f0c5fb42d092d2226bac1b3de0ff","abstract_canon_sha256":"1c32ea20cc4a9abde4f5ed6bdcd8f4d72726fbf43c10e563d730df1b47cf5aa4"},"schema_version":"1.0"},"canonical_sha256":"ac4f37a237f6d41618c11dc64508b5315bf076996997cf7fb1ea0c8b274fd9af","source":{"kind":"arxiv","id":"2406.06448","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2406.06448","created_at":"2026-07-05T08:29:42Z"},{"alias_kind":"arxiv_version","alias_value":"2406.06448v1","created_at":"2026-07-05T08:29:42Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2406.06448","created_at":"2026-07-05T08:29:42Z"},{"alias_kind":"pith_short_12","alias_value":"VRHTPIRX63KB","created_at":"2026-07-05T08:29:42Z"},{"alias_kind":"pith_short_16","alias_value":"VRHTPIRX63KBMGGB","created_at":"2026-07-05T08:29:42Z"},{"alias_kind":"pith_short_8","alias_value":"VRHTPIRX","created_at":"2026-07-05T08:29:42Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2024:VRHTPIRX63KBMGGBDXDEKCFVGF","target":"record","payload":{"canonical_record":{"source":{"id":"2406.06448","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","primary_cat":"cs.HC","submitted_at":"2024-06-10T16:39:21Z","cross_cats_sorted":[],"title_canon_sha256":"33367c87e2e709c6823dc009a7441fabc588f0c5fb42d092d2226bac1b3de0ff","abstract_canon_sha256":"1c32ea20cc4a9abde4f5ed6bdcd8f4d72726fbf43c10e563d730df1b47cf5aa4"},"schema_version":"1.0"},"canonical_sha256":"ac4f37a237f6d41618c11dc64508b5315bf076996997cf7fb1ea0c8b274fd9af","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T08:29:42.467121Z","signature_b64":"V0Y6yk2E4a6JaaknxHVBOSDdR8rd/BIg64gTaDDOg0GK0t4Cj93pfvpggyCTvFvFKlU76ZZAu5h2AnZTnYWHDg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"ac4f37a237f6d41618c11dc64508b5315bf076996997cf7fb1ea0c8b274fd9af","last_reissued_at":"2026-07-05T08:29:42.466527Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T08:29:42.466527Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2406.06448","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":"2026-07-05T08:29:42Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"nehBeGSxHBvQGLhKIJSgEJiB9g9RwUpYIKTpMAZ4FU9TPAteHF/BJ6HVAhmxTB6EnCUvYADFqZq+yWVn/lc2BA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-07T08:39:58.528094Z"},"content_sha256":"a7d5faf5194a380ea962b06cdb04cdd5101121a3cedfb1dcdc8abe52aa114e20","schema_version":"1.0","event_id":"sha256:a7d5faf5194a380ea962b06cdb04cdd5101121a3cedfb1dcdc8abe52aa114e20"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2024:VRHTPIRX63KBMGGBDXDEKCFVGF","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"How is the Pilot Doing: VTOL Pilot Workload Estimation by Multimodal Machine Learning on Psycho-physiological Signals","license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","headline":"","cross_cats":[],"primary_cat":"cs.HC","authors_text":"Blain Levedahl, Eliot Xing, Ian Higgins, Jean Oh, Jong Hoon Park, Kevin Salubre, Lawrence Chen, Mohammadreza Mousaei, Sebastian Scherer, Shashank Mehrotra, Steven Willits, Teruhisa Misu, Timothy Buker, Zhaobo Zheng","submitted_at":"2024-06-10T16:39:21Z","abstract_excerpt":"Vertical take-off and landing (VTOL) aircraft do not require a prolonged runway, thus allowing them to land almost anywhere. In recent years, their flexibility has made them popular in development, research, and operation. When compared to traditional fixed-wing aircraft and rotorcraft, VTOLs bring unique challenges as they combine many maneuvers from both types of aircraft. Pilot workload is a critical factor for safe and efficient operation of VTOLs. In this work, we conduct a user study to collect multimodal data from 28 pilots while they perform a variety of VTOL flight tasks. We analyze a"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2406.06448","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/2406.06448/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":"2026-07-05T08:29:42Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"QHKCmLSwvlC0JORoM8Q68IEJwrsBjtuzmbvybzj6sMz95Q1cmf8HCWvM7Ie0ZFSToZLtCCIkSEJBZW7eepkYDA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-07T08:39:58.528484Z"},"content_sha256":"76800ec4b7ec4da39a354d286b0868be8305216c2a30a41c9f10fab7b8dd5dfe","schema_version":"1.0","event_id":"sha256:76800ec4b7ec4da39a354d286b0868be8305216c2a30a41c9f10fab7b8dd5dfe"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/VRHTPIRX63KBMGGBDXDEKCFVGF/bundle.json","state_url":"https://pith.science/pith/VRHTPIRX63KBMGGBDXDEKCFVGF/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/VRHTPIRX63KBMGGBDXDEKCFVGF/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":"2026-07-07T08:39:58Z","links":{"resolver":"https://pith.science/pith/VRHTPIRX63KBMGGBDXDEKCFVGF","bundle":"https://pith.science/pith/VRHTPIRX63KBMGGBDXDEKCFVGF/bundle.json","state":"https://pith.science/pith/VRHTPIRX63KBMGGBDXDEKCFVGF/state.json","well_known_bundle":"https://pith.science/.well-known/pith/VRHTPIRX63KBMGGBDXDEKCFVGF/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2024:VRHTPIRX63KBMGGBDXDEKCFVGF","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":"1c32ea20cc4a9abde4f5ed6bdcd8f4d72726fbf43c10e563d730df1b47cf5aa4","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","primary_cat":"cs.HC","submitted_at":"2024-06-10T16:39:21Z","title_canon_sha256":"33367c87e2e709c6823dc009a7441fabc588f0c5fb42d092d2226bac1b3de0ff"},"schema_version":"1.0","source":{"id":"2406.06448","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2406.06448","created_at":"2026-07-05T08:29:42Z"},{"alias_kind":"arxiv_version","alias_value":"2406.06448v1","created_at":"2026-07-05T08:29:42Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2406.06448","created_at":"2026-07-05T08:29:42Z"},{"alias_kind":"pith_short_12","alias_value":"VRHTPIRX63KB","created_at":"2026-07-05T08:29:42Z"},{"alias_kind":"pith_short_16","alias_value":"VRHTPIRX63KBMGGB","created_at":"2026-07-05T08:29:42Z"},{"alias_kind":"pith_short_8","alias_value":"VRHTPIRX","created_at":"2026-07-05T08:29:42Z"}],"graph_snapshots":[{"event_id":"sha256:76800ec4b7ec4da39a354d286b0868be8305216c2a30a41c9f10fab7b8dd5dfe","target":"graph","created_at":"2026-07-05T08:29:42Z","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/2406.06448/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Vertical take-off and landing (VTOL) aircraft do not require a prolonged runway, thus allowing them to land almost anywhere. In recent years, their flexibility has made them popular in development, research, and operation. When compared to traditional fixed-wing aircraft and rotorcraft, VTOLs bring unique challenges as they combine many maneuvers from both types of aircraft. Pilot workload is a critical factor for safe and efficient operation of VTOLs. In this work, we conduct a user study to collect multimodal data from 28 pilots while they perform a variety of VTOL flight tasks. We analyze a","authors_text":"Blain Levedahl, Eliot Xing, Ian Higgins, Jean Oh, Jong Hoon Park, Kevin Salubre, Lawrence Chen, Mohammadreza Mousaei, Sebastian Scherer, Shashank Mehrotra, Steven Willits, Teruhisa Misu, Timothy Buker, Zhaobo Zheng","cross_cats":[],"headline":"","license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","primary_cat":"cs.HC","submitted_at":"2024-06-10T16:39:21Z","title":"How is the Pilot Doing: VTOL Pilot Workload Estimation by Multimodal Machine Learning on Psycho-physiological Signals"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2406.06448","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:a7d5faf5194a380ea962b06cdb04cdd5101121a3cedfb1dcdc8abe52aa114e20","target":"record","created_at":"2026-07-05T08:29:42Z","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":"1c32ea20cc4a9abde4f5ed6bdcd8f4d72726fbf43c10e563d730df1b47cf5aa4","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","primary_cat":"cs.HC","submitted_at":"2024-06-10T16:39:21Z","title_canon_sha256":"33367c87e2e709c6823dc009a7441fabc588f0c5fb42d092d2226bac1b3de0ff"},"schema_version":"1.0","source":{"id":"2406.06448","kind":"arxiv","version":1}},"canonical_sha256":"ac4f37a237f6d41618c11dc64508b5315bf076996997cf7fb1ea0c8b274fd9af","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"ac4f37a237f6d41618c11dc64508b5315bf076996997cf7fb1ea0c8b274fd9af","first_computed_at":"2026-07-05T08:29:42.466527Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T08:29:42.466527Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"V0Y6yk2E4a6JaaknxHVBOSDdR8rd/BIg64gTaDDOg0GK0t4Cj93pfvpggyCTvFvFKlU76ZZAu5h2AnZTnYWHDg==","signature_status":"signed_v1","signed_at":"2026-07-05T08:29:42.467121Z","signed_message":"canonical_sha256_bytes"},"source_id":"2406.06448","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:a7d5faf5194a380ea962b06cdb04cdd5101121a3cedfb1dcdc8abe52aa114e20","sha256:76800ec4b7ec4da39a354d286b0868be8305216c2a30a41c9f10fab7b8dd5dfe"],"state_sha256":"f406877410bef87abfbbf79c2d6a65799abbcf036a499cff138b9a79061f06df"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"0bzvQE5Ypjy3uI3uHHtwtvHN4az8ZbGsU52lFbNqeP8n1+7lVijOz1VjBkqTSAd50zj+s6ijoxUPc6DOBtE7BQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-07-07T08:39:58.530479Z","bundle_sha256":"87504566f6b4ce8fa94d9e4b18746aea2da92bd177b1d1fc88f064fa772ec7dc"}}