{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2018:VNI73N4CFXSV4SASB3QXEBCK5K","short_pith_number":"pith:VNI73N4C","canonical_record":{"source":{"id":"1812.07143","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.HC","submitted_at":"2018-12-18T02:51:39Z","cross_cats_sorted":[],"title_canon_sha256":"c8efd503e3c8e9fd3a3c972e99a9c304c6f59967ae403805e85afe1bc732949d","abstract_canon_sha256":"e1c862dcc6c9c11d5429e20c0b2b2e9176f3e6ac7263a1236fd1b3c99df4bdc0"},"schema_version":"1.0"},"canonical_sha256":"ab51fdb7822de55e48120ee172044aea816a0b5836c06949455b173b3acde2c0","source":{"kind":"arxiv","id":"1812.07143","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1812.07143","created_at":"2026-05-17T23:58:07Z"},{"alias_kind":"arxiv_version","alias_value":"1812.07143v1","created_at":"2026-05-17T23:58:07Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1812.07143","created_at":"2026-05-17T23:58:07Z"},{"alias_kind":"pith_short_12","alias_value":"VNI73N4CFXSV","created_at":"2026-05-18T12:32:59Z"},{"alias_kind":"pith_short_16","alias_value":"VNI73N4CFXSV4SAS","created_at":"2026-05-18T12:32:59Z"},{"alias_kind":"pith_short_8","alias_value":"VNI73N4C","created_at":"2026-05-18T12:32:59Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2018:VNI73N4CFXSV4SASB3QXEBCK5K","target":"record","payload":{"canonical_record":{"source":{"id":"1812.07143","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.HC","submitted_at":"2018-12-18T02:51:39Z","cross_cats_sorted":[],"title_canon_sha256":"c8efd503e3c8e9fd3a3c972e99a9c304c6f59967ae403805e85afe1bc732949d","abstract_canon_sha256":"e1c862dcc6c9c11d5429e20c0b2b2e9176f3e6ac7263a1236fd1b3c99df4bdc0"},"schema_version":"1.0"},"canonical_sha256":"ab51fdb7822de55e48120ee172044aea816a0b5836c06949455b173b3acde2c0","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-17T23:58:07.839505Z","signature_b64":"ouezV3uXwQLN6Ouw1QB33bW1OH82pQ0TMNNEB2yi0m3hWGU/0HfljdQG1iKm7CeApvfNeO9BUWpEgMboVvT6Cg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"ab51fdb7822de55e48120ee172044aea816a0b5836c06949455b173b3acde2c0","last_reissued_at":"2026-05-17T23:58:07.838807Z","signature_status":"signed_v1","first_computed_at":"2026-05-17T23:58:07.838807Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1812.07143","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":"2026-05-17T23:58:07Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"+gO+adZAGtadAHEDsH3YeXU93VV2JwcrI97lQSgv6tujPTYYmDvBHgtjo7rFtFExIw683WvyGv2r+QIBSCGNBQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-09T17:56:54.470119Z"},"content_sha256":"dbad38a20301a8acfbafade52d5ad23aac11eb43babce31a924b02731e882ae6","schema_version":"1.0","event_id":"sha256:dbad38a20301a8acfbafade52d5ad23aac11eb43babce31a924b02731e882ae6"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2018:VNI73N4CFXSV4SASB3QXEBCK5K","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Mobile Head Tracking for eCommerce and Beyond","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cs.HC","authors_text":"Jinrong Xie, Muratcan Cicek, Qiaosong Wang, Robinson Piramuthu","submitted_at":"2018-12-18T02:51:39Z","abstract_excerpt":"Shopping is difficult for people with motor impairments. This includes online shopping. Proprietary software can emulate mouse and keyboard via head tracking. However, such a solution is not common for smartphones. Unlike desktop and laptop computers, they are also much easier to carry indoors and outdoors.To address this, we implement and open source button that is sensitive to head movements tracked from the front camera of iPhone X. This allows developers to integrate in eCommerce applications easily without requiring specialized knowledge. Other applications include gaming and use in hands"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1812.07143","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":""},"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":"2026-05-17T23:58:07Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"AMi+GIml9LW7yusZx1Ku2cZsFZwRdPh+TkXuqN2mEiAiZj9dqcC5xhm+JMwYHfc9io4F4yMVmtTEuFwVhX2lBg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-09T17:56:54.470488Z"},"content_sha256":"8107f8915bb11813d52f7879b082378225dc2652f2d8ddfeae218fbf1c54feb4","schema_version":"1.0","event_id":"sha256:8107f8915bb11813d52f7879b082378225dc2652f2d8ddfeae218fbf1c54feb4"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/VNI73N4CFXSV4SASB3QXEBCK5K/bundle.json","state_url":"https://pith.science/pith/VNI73N4CFXSV4SASB3QXEBCK5K/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/VNI73N4CFXSV4SASB3QXEBCK5K/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":"2026-06-09T17:56:54Z","links":{"resolver":"https://pith.science/pith/VNI73N4CFXSV4SASB3QXEBCK5K","bundle":"https://pith.science/pith/VNI73N4CFXSV4SASB3QXEBCK5K/bundle.json","state":"https://pith.science/pith/VNI73N4CFXSV4SASB3QXEBCK5K/state.json","well_known_bundle":"https://pith.science/.well-known/pith/VNI73N4CFXSV4SASB3QXEBCK5K/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2018:VNI73N4CFXSV4SASB3QXEBCK5K","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":"e1c862dcc6c9c11d5429e20c0b2b2e9176f3e6ac7263a1236fd1b3c99df4bdc0","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.HC","submitted_at":"2018-12-18T02:51:39Z","title_canon_sha256":"c8efd503e3c8e9fd3a3c972e99a9c304c6f59967ae403805e85afe1bc732949d"},"schema_version":"1.0","source":{"id":"1812.07143","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1812.07143","created_at":"2026-05-17T23:58:07Z"},{"alias_kind":"arxiv_version","alias_value":"1812.07143v1","created_at":"2026-05-17T23:58:07Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1812.07143","created_at":"2026-05-17T23:58:07Z"},{"alias_kind":"pith_short_12","alias_value":"VNI73N4CFXSV","created_at":"2026-05-18T12:32:59Z"},{"alias_kind":"pith_short_16","alias_value":"VNI73N4CFXSV4SAS","created_at":"2026-05-18T12:32:59Z"},{"alias_kind":"pith_short_8","alias_value":"VNI73N4C","created_at":"2026-05-18T12:32:59Z"}],"graph_snapshots":[{"event_id":"sha256:8107f8915bb11813d52f7879b082378225dc2652f2d8ddfeae218fbf1c54feb4","target":"graph","created_at":"2026-05-17T23:58:07Z","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"},"paper":{"abstract_excerpt":"Shopping is difficult for people with motor impairments. This includes online shopping. Proprietary software can emulate mouse and keyboard via head tracking. However, such a solution is not common for smartphones. Unlike desktop and laptop computers, they are also much easier to carry indoors and outdoors.To address this, we implement and open source button that is sensitive to head movements tracked from the front camera of iPhone X. This allows developers to integrate in eCommerce applications easily without requiring specialized knowledge. Other applications include gaming and use in hands","authors_text":"Jinrong Xie, Muratcan Cicek, Qiaosong Wang, Robinson Piramuthu","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.HC","submitted_at":"2018-12-18T02:51:39Z","title":"Mobile Head Tracking for eCommerce and Beyond"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1812.07143","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:dbad38a20301a8acfbafade52d5ad23aac11eb43babce31a924b02731e882ae6","target":"record","created_at":"2026-05-17T23:58:07Z","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":"e1c862dcc6c9c11d5429e20c0b2b2e9176f3e6ac7263a1236fd1b3c99df4bdc0","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.HC","submitted_at":"2018-12-18T02:51:39Z","title_canon_sha256":"c8efd503e3c8e9fd3a3c972e99a9c304c6f59967ae403805e85afe1bc732949d"},"schema_version":"1.0","source":{"id":"1812.07143","kind":"arxiv","version":1}},"canonical_sha256":"ab51fdb7822de55e48120ee172044aea816a0b5836c06949455b173b3acde2c0","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"ab51fdb7822de55e48120ee172044aea816a0b5836c06949455b173b3acde2c0","first_computed_at":"2026-05-17T23:58:07.838807Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-17T23:58:07.838807Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"ouezV3uXwQLN6Ouw1QB33bW1OH82pQ0TMNNEB2yi0m3hWGU/0HfljdQG1iKm7CeApvfNeO9BUWpEgMboVvT6Cg==","signature_status":"signed_v1","signed_at":"2026-05-17T23:58:07.839505Z","signed_message":"canonical_sha256_bytes"},"source_id":"1812.07143","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:dbad38a20301a8acfbafade52d5ad23aac11eb43babce31a924b02731e882ae6","sha256:8107f8915bb11813d52f7879b082378225dc2652f2d8ddfeae218fbf1c54feb4"],"state_sha256":"8a12b6f3823d2298ddf2ffc81696d565a6e9fd294cd04462c6c4092913e90e21"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"yT+pnCBKB1fmHL3WTlxlGUvkxe84buwfJldcdhR5SQT7OUhPW3RvdgEwWbop4fZxL2uBK/GWzjQZ92+RiE7mDw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-09T17:56:54.472420Z","bundle_sha256":"2e4f8d2703997a6b752315b6954b5f0b260bff6b300aa3466ce9677b29f1ab51"}}