{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2019:3GJHB523BKM4DCOYHSIJ43Q4AP","short_pith_number":"pith:3GJHB523","canonical_record":{"source":{"id":"1908.10406","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CV","submitted_at":"2019-08-27T18:47:13Z","cross_cats_sorted":[],"title_canon_sha256":"77fda0ab9bb2850cadd2c8df1440aa94058b8e4ccbad8b6da14dc6ce84739d2a","abstract_canon_sha256":"2aa85c98f79cc4673d6d66d268ec8b1ef1136a19d0a94f70cdaef01ed2385f43"},"schema_version":"1.0"},"canonical_sha256":"d99270f75b0a99c189d83c909e6e1c03d672c83df657f34337fdc08a27d68fdc","source":{"kind":"arxiv","id":"1908.10406","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1908.10406","created_at":"2026-07-05T08:15:22Z"},{"alias_kind":"arxiv_version","alias_value":"1908.10406v1","created_at":"2026-07-05T08:15:22Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1908.10406","created_at":"2026-07-05T08:15:22Z"},{"alias_kind":"pith_short_12","alias_value":"3GJHB523BKM4","created_at":"2026-07-05T08:15:22Z"},{"alias_kind":"pith_short_16","alias_value":"3GJHB523BKM4DCOY","created_at":"2026-07-05T08:15:22Z"},{"alias_kind":"pith_short_8","alias_value":"3GJHB523","created_at":"2026-07-05T08:15:22Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2019:3GJHB523BKM4DCOYHSIJ43Q4AP","target":"record","payload":{"canonical_record":{"source":{"id":"1908.10406","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CV","submitted_at":"2019-08-27T18:47:13Z","cross_cats_sorted":[],"title_canon_sha256":"77fda0ab9bb2850cadd2c8df1440aa94058b8e4ccbad8b6da14dc6ce84739d2a","abstract_canon_sha256":"2aa85c98f79cc4673d6d66d268ec8b1ef1136a19d0a94f70cdaef01ed2385f43"},"schema_version":"1.0"},"canonical_sha256":"d99270f75b0a99c189d83c909e6e1c03d672c83df657f34337fdc08a27d68fdc","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T08:15:22.879923Z","signature_b64":"unydrGw0Z/etpcdfHkzgTtKOGUh9RuFLu4tjJuntwpiEwe5SD6dEBbepz85OUfDsNPpqABTdveo+EYS8sX+5Ag==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"d99270f75b0a99c189d83c909e6e1c03d672c83df657f34337fdc08a27d68fdc","last_reissued_at":"2026-07-05T08:15:22.879517Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T08:15:22.879517Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1908.10406","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":"2026-07-05T08:15:22Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"FLTehYq99nVJ0m9BQJHtKr0qdm2gvtwAS0IZWhbgxQdsWyH7XoB0WMygde88DqKa8QCujzpuH91Osl1YxhkHBQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-07T07:35:00.009013Z"},"content_sha256":"28546cee32fc1d773f32b15dd27a8c3d98f08a706c07930b7a7cb3fdcb7423f0","schema_version":"1.0","event_id":"sha256:28546cee32fc1d773f32b15dd27a8c3d98f08a706c07930b7a7cb3fdcb7423f0"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2019:3GJHB523BKM4DCOYHSIJ43Q4AP","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"An Effective and Efficient Method for Detecting Hands in Egocentric Videos for Rehabilitation Applications","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cs.CV","authors_text":"Jirapat Likitlersuang, Jos\\'e Zariffa, Ryan J. Vis\\'ee","submitted_at":"2019-08-27T18:47:13Z","abstract_excerpt":"Objective: Individuals with spinal cord injury (SCI) report upper limb function as their top recovery priority. To accurately represent the true impact of new interventions on patient function and independence, evaluation should occur in a natural setting. Wearable cameras can be used to monitor hand function at home, using computer vision to automatically analyze the resulting videos (egocentric video). A key step in this process, hand detection, is difficult to do robustly and reliably, hindering deployment of a complete monitoring system in the home and community. We propose an accurate and"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1908.10406","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/1908.10406/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":"2026-07-05T08:15:22Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"RD7LYoiLGZ5wZ3/PFEQOn5bEKVHI29OarDaEcpjac0E3XUBGtJGe9/V2k+0aSs85emh5km9Revl/EqfK2CUxAg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-07T07:35:00.009395Z"},"content_sha256":"bdb7bc867e28f12b7479d7dfd47b2f4345d0007d6a9cdc7ad724e9ea5c7fdf9f","schema_version":"1.0","event_id":"sha256:bdb7bc867e28f12b7479d7dfd47b2f4345d0007d6a9cdc7ad724e9ea5c7fdf9f"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/3GJHB523BKM4DCOYHSIJ43Q4AP/bundle.json","state_url":"https://pith.science/pith/3GJHB523BKM4DCOYHSIJ43Q4AP/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/3GJHB523BKM4DCOYHSIJ43Q4AP/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":"2026-07-07T07:35:00Z","links":{"resolver":"https://pith.science/pith/3GJHB523BKM4DCOYHSIJ43Q4AP","bundle":"https://pith.science/pith/3GJHB523BKM4DCOYHSIJ43Q4AP/bundle.json","state":"https://pith.science/pith/3GJHB523BKM4DCOYHSIJ43Q4AP/state.json","well_known_bundle":"https://pith.science/.well-known/pith/3GJHB523BKM4DCOYHSIJ43Q4AP/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2019:3GJHB523BKM4DCOYHSIJ43Q4AP","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":"2aa85c98f79cc4673d6d66d268ec8b1ef1136a19d0a94f70cdaef01ed2385f43","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CV","submitted_at":"2019-08-27T18:47:13Z","title_canon_sha256":"77fda0ab9bb2850cadd2c8df1440aa94058b8e4ccbad8b6da14dc6ce84739d2a"},"schema_version":"1.0","source":{"id":"1908.10406","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1908.10406","created_at":"2026-07-05T08:15:22Z"},{"alias_kind":"arxiv_version","alias_value":"1908.10406v1","created_at":"2026-07-05T08:15:22Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1908.10406","created_at":"2026-07-05T08:15:22Z"},{"alias_kind":"pith_short_12","alias_value":"3GJHB523BKM4","created_at":"2026-07-05T08:15:22Z"},{"alias_kind":"pith_short_16","alias_value":"3GJHB523BKM4DCOY","created_at":"2026-07-05T08:15:22Z"},{"alias_kind":"pith_short_8","alias_value":"3GJHB523","created_at":"2026-07-05T08:15:22Z"}],"graph_snapshots":[{"event_id":"sha256:bdb7bc867e28f12b7479d7dfd47b2f4345d0007d6a9cdc7ad724e9ea5c7fdf9f","target":"graph","created_at":"2026-07-05T08:15:22Z","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/1908.10406/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Objective: Individuals with spinal cord injury (SCI) report upper limb function as their top recovery priority. To accurately represent the true impact of new interventions on patient function and independence, evaluation should occur in a natural setting. Wearable cameras can be used to monitor hand function at home, using computer vision to automatically analyze the resulting videos (egocentric video). A key step in this process, hand detection, is difficult to do robustly and reliably, hindering deployment of a complete monitoring system in the home and community. We propose an accurate and","authors_text":"Jirapat Likitlersuang, Jos\\'e Zariffa, Ryan J. Vis\\'ee","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CV","submitted_at":"2019-08-27T18:47:13Z","title":"An Effective and Efficient Method for Detecting Hands in Egocentric Videos for Rehabilitation Applications"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1908.10406","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":"sha256:28546cee32fc1d773f32b15dd27a8c3d98f08a706c07930b7a7cb3fdcb7423f0","target":"record","created_at":"2026-07-05T08:15:22Z","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":"2aa85c98f79cc4673d6d66d268ec8b1ef1136a19d0a94f70cdaef01ed2385f43","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CV","submitted_at":"2019-08-27T18:47:13Z","title_canon_sha256":"77fda0ab9bb2850cadd2c8df1440aa94058b8e4ccbad8b6da14dc6ce84739d2a"},"schema_version":"1.0","source":{"id":"1908.10406","kind":"arxiv","version":1}},"canonical_sha256":"d99270f75b0a99c189d83c909e6e1c03d672c83df657f34337fdc08a27d68fdc","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"d99270f75b0a99c189d83c909e6e1c03d672c83df657f34337fdc08a27d68fdc","first_computed_at":"2026-07-05T08:15:22.879517Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T08:15:22.879517Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"unydrGw0Z/etpcdfHkzgTtKOGUh9RuFLu4tjJuntwpiEwe5SD6dEBbepz85OUfDsNPpqABTdveo+EYS8sX+5Ag==","signature_status":"signed_v1","signed_at":"2026-07-05T08:15:22.879923Z","signed_message":"canonical_sha256_bytes"},"source_id":"1908.10406","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:28546cee32fc1d773f32b15dd27a8c3d98f08a706c07930b7a7cb3fdcb7423f0","sha256:bdb7bc867e28f12b7479d7dfd47b2f4345d0007d6a9cdc7ad724e9ea5c7fdf9f"],"state_sha256":"1d3edf5e2e735dc046f6e6c102f3960ec49989e0902ca3a26302a19d25265699"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"JkrSauo1F9omZ8+KKzsLQBcn1a4kW2p0yqgXPmFIuk9qIDlgWrExfW3oJHiGmGQ7A2Z3inojujNrgVaG453FDA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-07-07T07:35:00.014044Z","bundle_sha256":"4d90a4b56ecd4312df2ba466ad59685c52bd1c231142bb31e9bc44ade5e6877d"}}