{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2025:YPDGBDPJQ6FPDRDQMDTVMF62YF","short_pith_number":"pith:YPDGBDPJ","canonical_record":{"source":{"id":"2505.17557","kind":"arxiv","version":2},"metadata":{"license":"http://creativecommons.org/licenses/by-nc-sa/4.0/","primary_cat":"cs.HC","submitted_at":"2025-05-23T07:02:46Z","cross_cats_sorted":[],"title_canon_sha256":"aab8f90241ced9d3bcbcae539da0cf5d1f07f3e95507f5538be9570d6c32633a","abstract_canon_sha256":"b32943b6beb2f4fbd226b6d5b41c6a73f330ae02a2d0490b8dc1e0eefa912db6"},"schema_version":"1.0"},"canonical_sha256":"c3c6608de9878af1c47060e75617dac17cc055813d550174d7d3295a142c1616","source":{"kind":"arxiv","id":"2505.17557","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2505.17557","created_at":"2026-07-05T11:09:15Z"},{"alias_kind":"arxiv_version","alias_value":"2505.17557v2","created_at":"2026-07-05T11:09:15Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2505.17557","created_at":"2026-07-05T11:09:15Z"},{"alias_kind":"pith_short_12","alias_value":"YPDGBDPJQ6FP","created_at":"2026-07-05T11:09:15Z"},{"alias_kind":"pith_short_16","alias_value":"YPDGBDPJQ6FPDRDQ","created_at":"2026-07-05T11:09:15Z"},{"alias_kind":"pith_short_8","alias_value":"YPDGBDPJ","created_at":"2026-07-05T11:09:15Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2025:YPDGBDPJQ6FPDRDQMDTVMF62YF","target":"record","payload":{"canonical_record":{"source":{"id":"2505.17557","kind":"arxiv","version":2},"metadata":{"license":"http://creativecommons.org/licenses/by-nc-sa/4.0/","primary_cat":"cs.HC","submitted_at":"2025-05-23T07:02:46Z","cross_cats_sorted":[],"title_canon_sha256":"aab8f90241ced9d3bcbcae539da0cf5d1f07f3e95507f5538be9570d6c32633a","abstract_canon_sha256":"b32943b6beb2f4fbd226b6d5b41c6a73f330ae02a2d0490b8dc1e0eefa912db6"},"schema_version":"1.0"},"canonical_sha256":"c3c6608de9878af1c47060e75617dac17cc055813d550174d7d3295a142c1616","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T11:09:15.667607Z","signature_b64":"8Brvw2oKpqCmUbvhGjreEth4eFkauuDOjQ2CCOoIlii5evuGKzw3quAKUJzTq37NR54v5QuUeeZayaYBm+9nBg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"c3c6608de9878af1c47060e75617dac17cc055813d550174d7d3295a142c1616","last_reissued_at":"2026-07-05T11:09:15.667060Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T11:09:15.667060Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2505.17557","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":"2026-07-05T11:09:15Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"FzHdeUEKjFk5RhjpVK2CCKnaE1aMuofKoM+JH4ZFMbGvUSylEsvQTFms+yFd8KytnA3cI9C1YRKpI4IAGMKkBA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-31T15:21:02.817120Z"},"content_sha256":"b7d6f0bb5e8b40057516e8b28c5d4be634f72d09e48b231849b48daf255ba331","schema_version":"1.0","event_id":"sha256:b7d6f0bb5e8b40057516e8b28c5d4be634f72d09e48b231849b48daf255ba331"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2025:YPDGBDPJQ6FPDRDQMDTVMF62YF","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Novobo: Supporting Teachers' Peer Learning of Instructional Gestures by Teaching a Mentee AI-Agent Together","license":"http://creativecommons.org/licenses/by-nc-sa/4.0/","headline":"","cross_cats":[],"primary_cat":"cs.HC","authors_text":"Duo Gong, Huan Zeng, Jiaqi Jiang, Kexin Huang, Pengcheng An, Roberto Martinez-Maldonado","submitted_at":"2025-05-23T07:02:46Z","abstract_excerpt":"Instructional gestures are essential for teaching, as they enhance communication and support student comprehension. However, existing training methods for developing these embodied skills can be time-consuming, isolating, or overly prescriptive. Research suggests that developing these tacit, experiential skills requires teachers' peer learning, where they learn from each other and build shared knowledge. This paper introduces Novobo, an apprentice AI-agent stimulating teachers' peer learning of instructional gestures through verbal and bodily inputs. Positioning the AI as a mentee employs the "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2505.17557","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/2505.17557/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":"2026-07-05T11:09:15Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"5AsMxZk5hR7IrscD31/0SBSU3DnQQdF2DVcxC8iCrxQejkxPE6IF5zKViFe/pML8xcedJQgImb2PlpijTFB9Bg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-31T15:21:02.856872Z"},"content_sha256":"b8840861289e0fe32585b9cf96b0b63e4b4627dad2c28976a55f5150e7eef1f1","schema_version":"1.0","event_id":"sha256:b8840861289e0fe32585b9cf96b0b63e4b4627dad2c28976a55f5150e7eef1f1"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/YPDGBDPJQ6FPDRDQMDTVMF62YF/bundle.json","state_url":"https://pith.science/pith/YPDGBDPJQ6FPDRDQMDTVMF62YF/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/YPDGBDPJQ6FPDRDQMDTVMF62YF/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":"2026-07-31T15:21:02Z","links":{"resolver":"https://pith.science/pith/YPDGBDPJQ6FPDRDQMDTVMF62YF","bundle":"https://pith.science/pith/YPDGBDPJQ6FPDRDQMDTVMF62YF/bundle.json","state":"https://pith.science/pith/YPDGBDPJQ6FPDRDQMDTVMF62YF/state.json","well_known_bundle":"https://pith.science/.well-known/pith/YPDGBDPJQ6FPDRDQMDTVMF62YF/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2025:YPDGBDPJQ6FPDRDQMDTVMF62YF","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":"b32943b6beb2f4fbd226b6d5b41c6a73f330ae02a2d0490b8dc1e0eefa912db6","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by-nc-sa/4.0/","primary_cat":"cs.HC","submitted_at":"2025-05-23T07:02:46Z","title_canon_sha256":"aab8f90241ced9d3bcbcae539da0cf5d1f07f3e95507f5538be9570d6c32633a"},"schema_version":"1.0","source":{"id":"2505.17557","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2505.17557","created_at":"2026-07-05T11:09:15Z"},{"alias_kind":"arxiv_version","alias_value":"2505.17557v2","created_at":"2026-07-05T11:09:15Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2505.17557","created_at":"2026-07-05T11:09:15Z"},{"alias_kind":"pith_short_12","alias_value":"YPDGBDPJQ6FP","created_at":"2026-07-05T11:09:15Z"},{"alias_kind":"pith_short_16","alias_value":"YPDGBDPJQ6FPDRDQ","created_at":"2026-07-05T11:09:15Z"},{"alias_kind":"pith_short_8","alias_value":"YPDGBDPJ","created_at":"2026-07-05T11:09:15Z"}],"graph_snapshots":[{"event_id":"sha256:b8840861289e0fe32585b9cf96b0b63e4b4627dad2c28976a55f5150e7eef1f1","target":"graph","created_at":"2026-07-05T11:09:15Z","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/2505.17557/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Instructional gestures are essential for teaching, as they enhance communication and support student comprehension. However, existing training methods for developing these embodied skills can be time-consuming, isolating, or overly prescriptive. Research suggests that developing these tacit, experiential skills requires teachers' peer learning, where they learn from each other and build shared knowledge. This paper introduces Novobo, an apprentice AI-agent stimulating teachers' peer learning of instructional gestures through verbal and bodily inputs. Positioning the AI as a mentee employs the ","authors_text":"Duo Gong, Huan Zeng, Jiaqi Jiang, Kexin Huang, Pengcheng An, Roberto Martinez-Maldonado","cross_cats":[],"headline":"","license":"http://creativecommons.org/licenses/by-nc-sa/4.0/","primary_cat":"cs.HC","submitted_at":"2025-05-23T07:02:46Z","title":"Novobo: Supporting Teachers' Peer Learning of Instructional Gestures by Teaching a Mentee AI-Agent Together"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2505.17557","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:b7d6f0bb5e8b40057516e8b28c5d4be634f72d09e48b231849b48daf255ba331","target":"record","created_at":"2026-07-05T11:09:15Z","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":"b32943b6beb2f4fbd226b6d5b41c6a73f330ae02a2d0490b8dc1e0eefa912db6","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by-nc-sa/4.0/","primary_cat":"cs.HC","submitted_at":"2025-05-23T07:02:46Z","title_canon_sha256":"aab8f90241ced9d3bcbcae539da0cf5d1f07f3e95507f5538be9570d6c32633a"},"schema_version":"1.0","source":{"id":"2505.17557","kind":"arxiv","version":2}},"canonical_sha256":"c3c6608de9878af1c47060e75617dac17cc055813d550174d7d3295a142c1616","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"c3c6608de9878af1c47060e75617dac17cc055813d550174d7d3295a142c1616","first_computed_at":"2026-07-05T11:09:15.667060Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T11:09:15.667060Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"8Brvw2oKpqCmUbvhGjreEth4eFkauuDOjQ2CCOoIlii5evuGKzw3quAKUJzTq37NR54v5QuUeeZayaYBm+9nBg==","signature_status":"signed_v1","signed_at":"2026-07-05T11:09:15.667607Z","signed_message":"canonical_sha256_bytes"},"source_id":"2505.17557","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:b7d6f0bb5e8b40057516e8b28c5d4be634f72d09e48b231849b48daf255ba331","sha256:b8840861289e0fe32585b9cf96b0b63e4b4627dad2c28976a55f5150e7eef1f1"],"state_sha256":"23854f8090b8aa475aa8e67993249aef27f10bcec7ce5c04e79a12ac96eb46a5"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"uEsZmjld+7dnhq4TSOl/VE4K6gbjD+786tGlZiuAIPy+XtcLhJLwQ/bwZ4pRMV/gfuZNhweVLkBDCKycKQEbAw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-07-31T15:21:02.918305Z","bundle_sha256":"187513be9d9ac0d3ec753ceb6dc0b1bdf28dfca6fad0ac82447114bed6553931"}}