{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2025:6BHJKEMAJUJ2ULEGLPV3CPY4LW","short_pith_number":"pith:6BHJKEMA","canonical_record":{"source":{"id":"2507.15470","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.LG","submitted_at":"2025-07-21T10:21:48Z","cross_cats_sorted":[],"title_canon_sha256":"685dacb04d172a1b958192c896c5d0e51902b91d314eaa0b66f39b3f4e234785","abstract_canon_sha256":"40fe75c0563099f0a375b99b440730ef394d0cf2f7db2cbaf1f9a381c7604c30"},"schema_version":"1.0"},"canonical_sha256":"f04e9511804d13aa2c865bebb13f1c5d8ae6685a7d6f94846c884a88ef45b7b2","source":{"kind":"arxiv","id":"2507.15470","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2507.15470","created_at":"2026-07-05T11:40:58Z"},{"alias_kind":"arxiv_version","alias_value":"2507.15470v2","created_at":"2026-07-05T11:40:58Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2507.15470","created_at":"2026-07-05T11:40:58Z"},{"alias_kind":"pith_short_12","alias_value":"6BHJKEMAJUJ2","created_at":"2026-07-05T11:40:58Z"},{"alias_kind":"pith_short_16","alias_value":"6BHJKEMAJUJ2ULEG","created_at":"2026-07-05T11:40:58Z"},{"alias_kind":"pith_short_8","alias_value":"6BHJKEMA","created_at":"2026-07-05T11:40:58Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2025:6BHJKEMAJUJ2ULEGLPV3CPY4LW","target":"record","payload":{"canonical_record":{"source":{"id":"2507.15470","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.LG","submitted_at":"2025-07-21T10:21:48Z","cross_cats_sorted":[],"title_canon_sha256":"685dacb04d172a1b958192c896c5d0e51902b91d314eaa0b66f39b3f4e234785","abstract_canon_sha256":"40fe75c0563099f0a375b99b440730ef394d0cf2f7db2cbaf1f9a381c7604c30"},"schema_version":"1.0"},"canonical_sha256":"f04e9511804d13aa2c865bebb13f1c5d8ae6685a7d6f94846c884a88ef45b7b2","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T11:40:58.022080Z","signature_b64":"FTqVgyvfYFsnG8KrUwgGoP8BL6OBNcg7+IWs9vT75o/puEI4wGsbD0ZpgY24yFeeGJKgRybQ/OK1/uljMdAFAQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"f04e9511804d13aa2c865bebb13f1c5d8ae6685a7d6f94846c884a88ef45b7b2","last_reissued_at":"2026-07-05T11:40:58.021445Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T11:40:58.021445Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2507.15470","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":"2026-07-05T11:40:58Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"vRXlYe4nvApHATT0lbIrEvOpxrIEvLkXJNOz3LlDOl43iIXft9j8NoMEMVp/6O6sUIT5McSnql5i3p2UKPQwCg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-16T10:49:49.344122Z"},"content_sha256":"920353c0709d1a5e767818c2c91999200275076a618cbec4ee5feaca067841e1","schema_version":"1.0","event_id":"sha256:920353c0709d1a5e767818c2c91999200275076a618cbec4ee5feaca067841e1"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2025:6BHJKEMAJUJ2ULEGLPV3CPY4LW","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"FedMultiEmo: Real-Time Emotion Recognition via Multimodal Federated Learning","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cs.LG","authors_text":"Baran Can G\\\"ul, Michael Weyrich, Nasser Jazdi, Stefanos Tziampazis, Suraksha Nadig","submitted_at":"2025-07-21T10:21:48Z","abstract_excerpt":"In-vehicle emotion recognition underpins adaptive driver-assistance systems and, ultimately, occupant safety. However, practical deployment is hindered by (i) modality fragility - poor lighting and occlusions degrade vision-based methods; (ii) physiological variability - heart-rate and skin-conductance patterns differ across individuals; and (iii) privacy risk - centralized training requires transmission of sensitive data. To address these challenges, we present FedMultiEmo, a privacy-preserving framework that fuses two complementary modalities at the decision level: visual features extracted "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2507.15470","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/2507.15470/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":"2026-07-05T11:40:58Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"VxpZ4WP0ypO9KX9ozZKbEwj1HiFkLX5erGiznBNinm6D6vmPBFfC5QiK59v8F0CmS8Ij+Sa8zJSEjRDakwlDCA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-16T10:49:49.344813Z"},"content_sha256":"31e132f54df3607c45425c5e4cda83ccc96774b5c737e772c0b53b4fe91a4eb2","schema_version":"1.0","event_id":"sha256:31e132f54df3607c45425c5e4cda83ccc96774b5c737e772c0b53b4fe91a4eb2"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/6BHJKEMAJUJ2ULEGLPV3CPY4LW/bundle.json","state_url":"https://pith.science/pith/6BHJKEMAJUJ2ULEGLPV3CPY4LW/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/6BHJKEMAJUJ2ULEGLPV3CPY4LW/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":"2026-08-16T10:49:49Z","links":{"resolver":"https://pith.science/pith/6BHJKEMAJUJ2ULEGLPV3CPY4LW","bundle":"https://pith.science/pith/6BHJKEMAJUJ2ULEGLPV3CPY4LW/bundle.json","state":"https://pith.science/pith/6BHJKEMAJUJ2ULEGLPV3CPY4LW/state.json","well_known_bundle":"https://pith.science/.well-known/pith/6BHJKEMAJUJ2ULEGLPV3CPY4LW/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2025:6BHJKEMAJUJ2ULEGLPV3CPY4LW","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":"40fe75c0563099f0a375b99b440730ef394d0cf2f7db2cbaf1f9a381c7604c30","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.LG","submitted_at":"2025-07-21T10:21:48Z","title_canon_sha256":"685dacb04d172a1b958192c896c5d0e51902b91d314eaa0b66f39b3f4e234785"},"schema_version":"1.0","source":{"id":"2507.15470","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2507.15470","created_at":"2026-07-05T11:40:58Z"},{"alias_kind":"arxiv_version","alias_value":"2507.15470v2","created_at":"2026-07-05T11:40:58Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2507.15470","created_at":"2026-07-05T11:40:58Z"},{"alias_kind":"pith_short_12","alias_value":"6BHJKEMAJUJ2","created_at":"2026-07-05T11:40:58Z"},{"alias_kind":"pith_short_16","alias_value":"6BHJKEMAJUJ2ULEG","created_at":"2026-07-05T11:40:58Z"},{"alias_kind":"pith_short_8","alias_value":"6BHJKEMA","created_at":"2026-07-05T11:40:58Z"}],"graph_snapshots":[{"event_id":"sha256:31e132f54df3607c45425c5e4cda83ccc96774b5c737e772c0b53b4fe91a4eb2","target":"graph","created_at":"2026-07-05T11:40:58Z","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/2507.15470/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"In-vehicle emotion recognition underpins adaptive driver-assistance systems and, ultimately, occupant safety. However, practical deployment is hindered by (i) modality fragility - poor lighting and occlusions degrade vision-based methods; (ii) physiological variability - heart-rate and skin-conductance patterns differ across individuals; and (iii) privacy risk - centralized training requires transmission of sensitive data. To address these challenges, we present FedMultiEmo, a privacy-preserving framework that fuses two complementary modalities at the decision level: visual features extracted ","authors_text":"Baran Can G\\\"ul, Michael Weyrich, Nasser Jazdi, Stefanos Tziampazis, Suraksha Nadig","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.LG","submitted_at":"2025-07-21T10:21:48Z","title":"FedMultiEmo: Real-Time Emotion Recognition via Multimodal Federated Learning"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2507.15470","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":"sha256:920353c0709d1a5e767818c2c91999200275076a618cbec4ee5feaca067841e1","target":"record","created_at":"2026-07-05T11:40:58Z","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":"40fe75c0563099f0a375b99b440730ef394d0cf2f7db2cbaf1f9a381c7604c30","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.LG","submitted_at":"2025-07-21T10:21:48Z","title_canon_sha256":"685dacb04d172a1b958192c896c5d0e51902b91d314eaa0b66f39b3f4e234785"},"schema_version":"1.0","source":{"id":"2507.15470","kind":"arxiv","version":2}},"canonical_sha256":"f04e9511804d13aa2c865bebb13f1c5d8ae6685a7d6f94846c884a88ef45b7b2","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"f04e9511804d13aa2c865bebb13f1c5d8ae6685a7d6f94846c884a88ef45b7b2","first_computed_at":"2026-07-05T11:40:58.021445Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T11:40:58.021445Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"FTqVgyvfYFsnG8KrUwgGoP8BL6OBNcg7+IWs9vT75o/puEI4wGsbD0ZpgY24yFeeGJKgRybQ/OK1/uljMdAFAQ==","signature_status":"signed_v1","signed_at":"2026-07-05T11:40:58.022080Z","signed_message":"canonical_sha256_bytes"},"source_id":"2507.15470","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:920353c0709d1a5e767818c2c91999200275076a618cbec4ee5feaca067841e1","sha256:31e132f54df3607c45425c5e4cda83ccc96774b5c737e772c0b53b4fe91a4eb2"],"state_sha256":"240b3786a095d5d814d3ccb5d0d48a4c6a31b7af877cd26d038ba7e537215de6"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"OdLTPhc8Vg8XeH4l8lzOyoVQbV4uAFmBs3vStglqbtYrIKvC1GEMHKBMsGHgg7l2+IG2M7khK/gp3/agRpfUBQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-16T10:49:49.348942Z","bundle_sha256":"95ffa972cfa61abc0a5cae47009f3c0114acf8e0bfdb06d70aeced6da9ef208f"}}