{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2022:47ET6RARFBCQPTB64QM5LWOLJ2","short_pith_number":"pith:47ET6RAR","canonical_record":{"source":{"id":"2210.05668","kind":"arxiv","version":2},"metadata":{"license":"http://creativecommons.org/licenses/by-nc-sa/4.0/","primary_cat":"cs.CV","submitted_at":"2022-10-11T17:58:44Z","cross_cats_sorted":[],"title_canon_sha256":"c72c1916e481254251d6bf28cead20e2fda4e7e53f52bbb1efe7a960ccf2818f","abstract_canon_sha256":"0ede0f8cd9d6166967e31e3d0e453745fae97f3d838190a6b40160451e275cfc"},"schema_version":"1.0"},"canonical_sha256":"e7c93f4411284507cc3ee419d5d9cb4e85b56ae12fe72654d8b72b5f4cb56dc3","source":{"kind":"arxiv","id":"2210.05668","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2210.05668","created_at":"2026-07-05T05:05:51Z"},{"alias_kind":"arxiv_version","alias_value":"2210.05668v2","created_at":"2026-07-05T05:05:51Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2210.05668","created_at":"2026-07-05T05:05:51Z"},{"alias_kind":"pith_short_12","alias_value":"47ET6RARFBCQ","created_at":"2026-07-05T05:05:51Z"},{"alias_kind":"pith_short_16","alias_value":"47ET6RARFBCQPTB6","created_at":"2026-07-05T05:05:51Z"},{"alias_kind":"pith_short_8","alias_value":"47ET6RAR","created_at":"2026-07-05T05:05:51Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2022:47ET6RARFBCQPTB64QM5LWOLJ2","target":"record","payload":{"canonical_record":{"source":{"id":"2210.05668","kind":"arxiv","version":2},"metadata":{"license":"http://creativecommons.org/licenses/by-nc-sa/4.0/","primary_cat":"cs.CV","submitted_at":"2022-10-11T17:58:44Z","cross_cats_sorted":[],"title_canon_sha256":"c72c1916e481254251d6bf28cead20e2fda4e7e53f52bbb1efe7a960ccf2818f","abstract_canon_sha256":"0ede0f8cd9d6166967e31e3d0e453745fae97f3d838190a6b40160451e275cfc"},"schema_version":"1.0"},"canonical_sha256":"e7c93f4411284507cc3ee419d5d9cb4e85b56ae12fe72654d8b72b5f4cb56dc3","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T05:05:51.674336Z","signature_b64":"1bnCW+7ONIEIq52bHDS2Zs84wvxhjoav1mUFCELBzzO3Bkyhd0E5vdp/zIYpCwBOy2GO3qff/IHIszeqXhqUCg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"e7c93f4411284507cc3ee419d5d9cb4e85b56ae12fe72654d8b72b5f4cb56dc3","last_reissued_at":"2026-07-05T05:05:51.673938Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T05:05:51.673938Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2210.05668","source_version":2,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-07-05T05:05:51Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"QCmJ0MM8sFww4B/x4udEIQ5tL1C4AqA7SsQM5KyXSy2aVPehPSzFAvKY4H50TETsTjsETty81hqxdZmBAxBpBA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-01T11:58:41.867524Z"},"content_sha256":"0c79d5a79b166cae3157ee54d1e75269c4699f65a42dce936efa18136fc0ce4c","schema_version":"1.0","event_id":"sha256:0c79d5a79b166cae3157ee54d1e75269c4699f65a42dce936efa18136fc0ce4c"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2022:47ET6RARFBCQPTB64QM5LWOLJ2","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Understanding Embodied Reference with Touch-Line Transformer","license":"http://creativecommons.org/licenses/by-nc-sa/4.0/","headline":"","cross_cats":[],"primary_cat":"cs.CV","authors_text":"Federico Rossano, Guyue Zhou, Hao Zhao, Jiangtao Gong, Xiaoxue Chen, Yang Li, Yixin Zhu","submitted_at":"2022-10-11T17:58:44Z","abstract_excerpt":"We study embodied reference understanding, the task of locating referents using embodied gestural signals and language references. Human studies have revealed that objects referred to or pointed to do not lie on the elbow-wrist line, a common misconception; instead, they lie on the so-called virtual touch line. However, existing human pose representations fail to incorporate the virtual touch line. To tackle this problem, we devise the touch-line transformer: It takes as input tokenized visual and textual features and simultaneously predicts the referent's bounding box and a touch-line vector."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2210.05668","kind":"arxiv","version":2},"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/2210.05668/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":"2026-07-05T05:05:51Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"pqxnUMDoXaWxLLXe+OyTsk9UEmGuryKxnPdz2eOoO6TTYR6dg8XdMT6PSYQ/GvRbRkX5Kyt3Q4z7Hcb26M5zCg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-01T11:58:41.867808Z"},"content_sha256":"3e6eee8b1cec598a1dc06018e26aed363ba4a4ee8e60feb59230e0605140c597","schema_version":"1.0","event_id":"sha256:3e6eee8b1cec598a1dc06018e26aed363ba4a4ee8e60feb59230e0605140c597"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/47ET6RARFBCQPTB64QM5LWOLJ2/bundle.json","state_url":"https://pith.science/pith/47ET6RARFBCQPTB64QM5LWOLJ2/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/47ET6RARFBCQPTB64QM5LWOLJ2/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":"2026-08-01T11:58:41Z","links":{"resolver":"https://pith.science/pith/47ET6RARFBCQPTB64QM5LWOLJ2","bundle":"https://pith.science/pith/47ET6RARFBCQPTB64QM5LWOLJ2/bundle.json","state":"https://pith.science/pith/47ET6RARFBCQPTB64QM5LWOLJ2/state.json","well_known_bundle":"https://pith.science/.well-known/pith/47ET6RARFBCQPTB64QM5LWOLJ2/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2022:47ET6RARFBCQPTB64QM5LWOLJ2","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":"0ede0f8cd9d6166967e31e3d0e453745fae97f3d838190a6b40160451e275cfc","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by-nc-sa/4.0/","primary_cat":"cs.CV","submitted_at":"2022-10-11T17:58:44Z","title_canon_sha256":"c72c1916e481254251d6bf28cead20e2fda4e7e53f52bbb1efe7a960ccf2818f"},"schema_version":"1.0","source":{"id":"2210.05668","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2210.05668","created_at":"2026-07-05T05:05:51Z"},{"alias_kind":"arxiv_version","alias_value":"2210.05668v2","created_at":"2026-07-05T05:05:51Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2210.05668","created_at":"2026-07-05T05:05:51Z"},{"alias_kind":"pith_short_12","alias_value":"47ET6RARFBCQ","created_at":"2026-07-05T05:05:51Z"},{"alias_kind":"pith_short_16","alias_value":"47ET6RARFBCQPTB6","created_at":"2026-07-05T05:05:51Z"},{"alias_kind":"pith_short_8","alias_value":"47ET6RAR","created_at":"2026-07-05T05:05:51Z"}],"graph_snapshots":[{"event_id":"sha256:3e6eee8b1cec598a1dc06018e26aed363ba4a4ee8e60feb59230e0605140c597","target":"graph","created_at":"2026-07-05T05:05:51Z","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/2210.05668/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We study embodied reference understanding, the task of locating referents using embodied gestural signals and language references. Human studies have revealed that objects referred to or pointed to do not lie on the elbow-wrist line, a common misconception; instead, they lie on the so-called virtual touch line. However, existing human pose representations fail to incorporate the virtual touch line. To tackle this problem, we devise the touch-line transformer: It takes as input tokenized visual and textual features and simultaneously predicts the referent's bounding box and a touch-line vector.","authors_text":"Federico Rossano, Guyue Zhou, Hao Zhao, Jiangtao Gong, Xiaoxue Chen, Yang Li, Yixin Zhu","cross_cats":[],"headline":"","license":"http://creativecommons.org/licenses/by-nc-sa/4.0/","primary_cat":"cs.CV","submitted_at":"2022-10-11T17:58:44Z","title":"Understanding Embodied Reference with Touch-Line Transformer"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2210.05668","kind":"arxiv","version":2},"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":"sha256:0c79d5a79b166cae3157ee54d1e75269c4699f65a42dce936efa18136fc0ce4c","target":"record","created_at":"2026-07-05T05:05:51Z","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":"0ede0f8cd9d6166967e31e3d0e453745fae97f3d838190a6b40160451e275cfc","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by-nc-sa/4.0/","primary_cat":"cs.CV","submitted_at":"2022-10-11T17:58:44Z","title_canon_sha256":"c72c1916e481254251d6bf28cead20e2fda4e7e53f52bbb1efe7a960ccf2818f"},"schema_version":"1.0","source":{"id":"2210.05668","kind":"arxiv","version":2}},"canonical_sha256":"e7c93f4411284507cc3ee419d5d9cb4e85b56ae12fe72654d8b72b5f4cb56dc3","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"e7c93f4411284507cc3ee419d5d9cb4e85b56ae12fe72654d8b72b5f4cb56dc3","first_computed_at":"2026-07-05T05:05:51.673938Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T05:05:51.673938Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"1bnCW+7ONIEIq52bHDS2Zs84wvxhjoav1mUFCELBzzO3Bkyhd0E5vdp/zIYpCwBOy2GO3qff/IHIszeqXhqUCg==","signature_status":"signed_v1","signed_at":"2026-07-05T05:05:51.674336Z","signed_message":"canonical_sha256_bytes"},"source_id":"2210.05668","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:0c79d5a79b166cae3157ee54d1e75269c4699f65a42dce936efa18136fc0ce4c","sha256:3e6eee8b1cec598a1dc06018e26aed363ba4a4ee8e60feb59230e0605140c597"],"state_sha256":"0211a3d76d88c741eef3f7df5f95189f9151ec7b5ee79e26de8f7df4f4d6ccd9"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"j4cBkSMgsV7KlZTMM/sjJmypcjj98Gt9NLDI95dY5UNGlEID1hAqq6g1KytnOXPXG5h5owlzb3xrcGwdKdrtCg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-01T11:58:41.871900Z","bundle_sha256":"38095294942f77dd8101b4194f72a1017f10c9a2839de00f3f77125ddd719fed"}}