{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2025:BA52UXX55TJQVSS7CIARRE6ET7","short_pith_number":"pith:BA52UXX5","canonical_record":{"source":{"id":"2508.18481","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.HC","submitted_at":"2025-08-25T20:45:00Z","cross_cats_sorted":["cs.CV","cs.GR"],"title_canon_sha256":"0558a1a3f87425e0cf7849d9f4191791c455a4d6abeb18c53e95586e64e9b13c","abstract_canon_sha256":"565c37b45cbc632529b7fe7be50e95a8a8cc5f8afcfaec4c0054d9c2d0003083"},"schema_version":"1.0"},"canonical_sha256":"083baa5efdecd30aca5f12011893c49fde423d6af23482846ac69a0b72e4a0a9","source":{"kind":"arxiv","id":"2508.18481","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2508.18481","created_at":"2026-07-05T11:59:25Z"},{"alias_kind":"arxiv_version","alias_value":"2508.18481v1","created_at":"2026-07-05T11:59:25Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2508.18481","created_at":"2026-07-05T11:59:25Z"},{"alias_kind":"pith_short_12","alias_value":"BA52UXX55TJQ","created_at":"2026-07-05T11:59:25Z"},{"alias_kind":"pith_short_16","alias_value":"BA52UXX55TJQVSS7","created_at":"2026-07-05T11:59:25Z"},{"alias_kind":"pith_short_8","alias_value":"BA52UXX5","created_at":"2026-07-05T11:59:25Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2025:BA52UXX55TJQVSS7CIARRE6ET7","target":"record","payload":{"canonical_record":{"source":{"id":"2508.18481","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.HC","submitted_at":"2025-08-25T20:45:00Z","cross_cats_sorted":["cs.CV","cs.GR"],"title_canon_sha256":"0558a1a3f87425e0cf7849d9f4191791c455a4d6abeb18c53e95586e64e9b13c","abstract_canon_sha256":"565c37b45cbc632529b7fe7be50e95a8a8cc5f8afcfaec4c0054d9c2d0003083"},"schema_version":"1.0"},"canonical_sha256":"083baa5efdecd30aca5f12011893c49fde423d6af23482846ac69a0b72e4a0a9","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T11:59:25.112738Z","signature_b64":"hVFntPJHSxxVGJztBt7TRKV7M/TqCE99ilfSecUh8ctc6rKXezscoKFrZw6LQRqOqQlCYkfFz74iRarpdeoSDA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"083baa5efdecd30aca5f12011893c49fde423d6af23482846ac69a0b72e4a0a9","last_reissued_at":"2026-07-05T11:59:25.112248Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T11:59:25.112248Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2508.18481","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":"2026-07-05T11:59:25Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"L+ic/RJmQ2qMecxu4XCgkwO5fd2tMbostfOWQ5bFshuQgpP+DuecX4ttk2kZvm6qxLeZsesokIrXjDwY1NcGAA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-10T22:46:44.299139Z"},"content_sha256":"5b50edbe3f7b19f0723bf69956f660172ef0e0a5f94e4e7066bdaa799d859eb3","schema_version":"1.0","event_id":"sha256:5b50edbe3f7b19f0723bf69956f660172ef0e0a5f94e4e7066bdaa799d859eb3"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2025:BA52UXX55TJQVSS7CIARRE6ET7","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Impact of Target and Tool Visualization on Depth Perception and Usability in Optical See-Through AR","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cs.CV","cs.GR"],"primary_cat":"cs.HC","authors_text":"Bruce Daniel, Chiming Yu, Fred Baik, Hui Zhang, Jue Cen, Lifeng Zhu, Xiaoxian Xiong, Xinkai Wang, Xue Xie, Yuanyi Zheng, Yue Yang","submitted_at":"2025-08-25T20:45:00Z","abstract_excerpt":"Optical see-through augmented reality (OST-AR) systems like Microsoft HoloLens 2 hold promise for arm's distance guidance (e.g., surgery), but depth perception of the hologram and occlusion of real instruments remain challenging. We present an evaluation of how visualizing the target object with different transparencies and visualizing a tracked tool (virtual proxy vs. real tool vs. no tool tracking) affects depth perception and system usability. Ten participants performed two experiments on HoloLens 2. In Experiment 1, we compared high-transparency vs. low-transparency target rendering in a d"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2508.18481","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/2508.18481/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":"2026-07-05T11:59:25Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"4KEF4RbB5akfGHR+gyGEjvKm8aRArQ9OFw6J4V+TskvyLVDLH+iXGiGhWMTTLxF+9Xnl3y0QgNun99xwDtg5Bw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-10T22:46:44.299644Z"},"content_sha256":"d51cd0fec146a7b69c4deb1e66bc10c0377f80ecd4f315b801683c74cec1f727","schema_version":"1.0","event_id":"sha256:d51cd0fec146a7b69c4deb1e66bc10c0377f80ecd4f315b801683c74cec1f727"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/BA52UXX55TJQVSS7CIARRE6ET7/bundle.json","state_url":"https://pith.science/pith/BA52UXX55TJQVSS7CIARRE6ET7/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/BA52UXX55TJQVSS7CIARRE6ET7/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":"2026-08-10T22:46:44Z","links":{"resolver":"https://pith.science/pith/BA52UXX55TJQVSS7CIARRE6ET7","bundle":"https://pith.science/pith/BA52UXX55TJQVSS7CIARRE6ET7/bundle.json","state":"https://pith.science/pith/BA52UXX55TJQVSS7CIARRE6ET7/state.json","well_known_bundle":"https://pith.science/.well-known/pith/BA52UXX55TJQVSS7CIARRE6ET7/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2025:BA52UXX55TJQVSS7CIARRE6ET7","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":"565c37b45cbc632529b7fe7be50e95a8a8cc5f8afcfaec4c0054d9c2d0003083","cross_cats_sorted":["cs.CV","cs.GR"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.HC","submitted_at":"2025-08-25T20:45:00Z","title_canon_sha256":"0558a1a3f87425e0cf7849d9f4191791c455a4d6abeb18c53e95586e64e9b13c"},"schema_version":"1.0","source":{"id":"2508.18481","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2508.18481","created_at":"2026-07-05T11:59:25Z"},{"alias_kind":"arxiv_version","alias_value":"2508.18481v1","created_at":"2026-07-05T11:59:25Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2508.18481","created_at":"2026-07-05T11:59:25Z"},{"alias_kind":"pith_short_12","alias_value":"BA52UXX55TJQ","created_at":"2026-07-05T11:59:25Z"},{"alias_kind":"pith_short_16","alias_value":"BA52UXX55TJQVSS7","created_at":"2026-07-05T11:59:25Z"},{"alias_kind":"pith_short_8","alias_value":"BA52UXX5","created_at":"2026-07-05T11:59:25Z"}],"graph_snapshots":[{"event_id":"sha256:d51cd0fec146a7b69c4deb1e66bc10c0377f80ecd4f315b801683c74cec1f727","target":"graph","created_at":"2026-07-05T11:59:25Z","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/2508.18481/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Optical see-through augmented reality (OST-AR) systems like Microsoft HoloLens 2 hold promise for arm's distance guidance (e.g., surgery), but depth perception of the hologram and occlusion of real instruments remain challenging. We present an evaluation of how visualizing the target object with different transparencies and visualizing a tracked tool (virtual proxy vs. real tool vs. no tool tracking) affects depth perception and system usability. Ten participants performed two experiments on HoloLens 2. In Experiment 1, we compared high-transparency vs. low-transparency target rendering in a d","authors_text":"Bruce Daniel, Chiming Yu, Fred Baik, Hui Zhang, Jue Cen, Lifeng Zhu, Xiaoxian Xiong, Xinkai Wang, Xue Xie, Yuanyi Zheng, Yue Yang","cross_cats":["cs.CV","cs.GR"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.HC","submitted_at":"2025-08-25T20:45:00Z","title":"Impact of Target and Tool Visualization on Depth Perception and Usability in Optical See-Through AR"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2508.18481","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":"sha256:5b50edbe3f7b19f0723bf69956f660172ef0e0a5f94e4e7066bdaa799d859eb3","target":"record","created_at":"2026-07-05T11:59:25Z","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":"565c37b45cbc632529b7fe7be50e95a8a8cc5f8afcfaec4c0054d9c2d0003083","cross_cats_sorted":["cs.CV","cs.GR"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.HC","submitted_at":"2025-08-25T20:45:00Z","title_canon_sha256":"0558a1a3f87425e0cf7849d9f4191791c455a4d6abeb18c53e95586e64e9b13c"},"schema_version":"1.0","source":{"id":"2508.18481","kind":"arxiv","version":1}},"canonical_sha256":"083baa5efdecd30aca5f12011893c49fde423d6af23482846ac69a0b72e4a0a9","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"083baa5efdecd30aca5f12011893c49fde423d6af23482846ac69a0b72e4a0a9","first_computed_at":"2026-07-05T11:59:25.112248Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T11:59:25.112248Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"hVFntPJHSxxVGJztBt7TRKV7M/TqCE99ilfSecUh8ctc6rKXezscoKFrZw6LQRqOqQlCYkfFz74iRarpdeoSDA==","signature_status":"signed_v1","signed_at":"2026-07-05T11:59:25.112738Z","signed_message":"canonical_sha256_bytes"},"source_id":"2508.18481","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:5b50edbe3f7b19f0723bf69956f660172ef0e0a5f94e4e7066bdaa799d859eb3","sha256:d51cd0fec146a7b69c4deb1e66bc10c0377f80ecd4f315b801683c74cec1f727"],"state_sha256":"c92fad600e4dfe96ea3c75caba28da474f3ad82eab4cb78f4cb2e9fd9186698b"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"O4wwEzKjfhXl9+HBn4+MxrQUxivKEd0pmEz/0N5BPEJK2RJWzhOUImZJls3aMv116Z5Ea8DRKU1B9H8hvBfgBw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-10T22:46:44.303602Z","bundle_sha256":"dde4444609fc64fcb4a975538c2c9cfa5019fb5ea68b40ed4d5917b59341f965"}}