{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2015:CAWGS6O67F26TAOHD7UUTXYDWN","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":"5ee765d5bb487268978c54b29bdd0a595ef3884abc7347d27c8aac9dd5fc0493","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.class-ph","submitted_at":"2015-03-15T05:56:18Z","title_canon_sha256":"0140770f1daeaa749017971c89a1c269a39c2666db0746ba5e4d6f759ddc4c8b"},"schema_version":"1.0","source":{"id":"1503.04392","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1503.04392","created_at":"2026-05-18T02:01:08Z"},{"alias_kind":"arxiv_version","alias_value":"1503.04392v2","created_at":"2026-05-18T02:01:08Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1503.04392","created_at":"2026-05-18T02:01:08Z"},{"alias_kind":"pith_short_12","alias_value":"CAWGS6O67F26","created_at":"2026-05-18T12:29:14Z"},{"alias_kind":"pith_short_16","alias_value":"CAWGS6O67F26TAOH","created_at":"2026-05-18T12:29:14Z"},{"alias_kind":"pith_short_8","alias_value":"CAWGS6O6","created_at":"2026-05-18T12:29:14Z"}],"graph_snapshots":[{"event_id":"sha256:44d136031f39f2a65c958b752743f4fd1c1a9814d88f00f1f5fdf8caad91a3f6","target":"graph","created_at":"2026-05-18T02:01:08Z","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":"Two previously studied classes of electromagnetic media, labeled as those of Q media and P media, are decomposed according to the natural decomposition introduced by Hehl and Obukhov. Six special cases based on either non-existence or sole existence of the three Hehl-Obukhov components, are defined for both medium classes.","authors_text":"A. Favaro, I.V. Lindell","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.class-ph","submitted_at":"2015-03-15T05:56:18Z","title":"Decomposition of Electromagnetic Q and P Media"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1503.04392","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":"sha256:03d1d709739ffa3a65c3ae6c4e1759db5f4218b5eaa3ee511ce273095135a4bf","target":"record","created_at":"2026-05-18T02:01:08Z","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":"5ee765d5bb487268978c54b29bdd0a595ef3884abc7347d27c8aac9dd5fc0493","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.class-ph","submitted_at":"2015-03-15T05:56:18Z","title_canon_sha256":"0140770f1daeaa749017971c89a1c269a39c2666db0746ba5e4d6f759ddc4c8b"},"schema_version":"1.0","source":{"id":"1503.04392","kind":"arxiv","version":2}},"canonical_sha256":"102c6979def975e981c71fe949df03b37d75c1f47c825411d98de58047fe9311","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"102c6979def975e981c71fe949df03b37d75c1f47c825411d98de58047fe9311","first_computed_at":"2026-05-18T02:01:08.289678Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:01:08.289678Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"FB9Nsv41xQJ2ZkunufCVIrzF/RpaS6GA5ySMFISK4Cz6CX3445mpwgrOCsW2ZMxS4OWPN/ruQa7sjKWM4WYQBw==","signature_status":"signed_v1","signed_at":"2026-05-18T02:01:08.290367Z","signed_message":"canonical_sha256_bytes"},"source_id":"1503.04392","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:03d1d709739ffa3a65c3ae6c4e1759db5f4218b5eaa3ee511ce273095135a4bf","sha256:44d136031f39f2a65c958b752743f4fd1c1a9814d88f00f1f5fdf8caad91a3f6"],"state_sha256":"6ed076b2c644afa080d6a94c646e45ccb1c4ba7f793ddc9e93fceb2ac30fb19d"}