{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2012:FHHFZWVX4X6UJZV2WBLM54KLYO","short_pith_number":"pith:FHHFZWVX","canonical_record":{"source":{"id":"1207.0470","kind":"arxiv","version":3},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2012-07-02T18:53:21Z","cross_cats_sorted":["hep-th","math-ph","math.MP"],"title_canon_sha256":"d09f8691b5c19b3fb0ffa211dc767e239b4b0f9586419b6f868cf43d6360c98a","abstract_canon_sha256":"75786337647a9e1dd3f0805ecf7d6f926c57250e98cf53e3a21131ebc1ac6c1d"},"schema_version":"1.0"},"canonical_sha256":"29ce5cdab7e5fd44e6bab056cef14bc3874e6dfe36fa2945352cc4c7eafdece6","source":{"kind":"arxiv","id":"1207.0470","version":3},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1207.0470","created_at":"2026-05-18T01:15:07Z"},{"alias_kind":"arxiv_version","alias_value":"1207.0470v3","created_at":"2026-05-18T01:15:07Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1207.0470","created_at":"2026-05-18T01:15:07Z"},{"alias_kind":"pith_short_12","alias_value":"FHHFZWVX4X6U","created_at":"2026-05-18T12:27:06Z"},{"alias_kind":"pith_short_16","alias_value":"FHHFZWVX4X6UJZV2","created_at":"2026-05-18T12:27:06Z"},{"alias_kind":"pith_short_8","alias_value":"FHHFZWVX","created_at":"2026-05-18T12:27:06Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2012:FHHFZWVX4X6UJZV2WBLM54KLYO","target":"record","payload":{"canonical_record":{"source":{"id":"1207.0470","kind":"arxiv","version":3},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2012-07-02T18:53:21Z","cross_cats_sorted":["hep-th","math-ph","math.MP"],"title_canon_sha256":"d09f8691b5c19b3fb0ffa211dc767e239b4b0f9586419b6f868cf43d6360c98a","abstract_canon_sha256":"75786337647a9e1dd3f0805ecf7d6f926c57250e98cf53e3a21131ebc1ac6c1d"},"schema_version":"1.0"},"canonical_sha256":"29ce5cdab7e5fd44e6bab056cef14bc3874e6dfe36fa2945352cc4c7eafdece6","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:15:07.281930Z","signature_b64":"2FeWo3g2ExaXMNXCy8FMJq9BOVxk7M3S+pity4H43qs2YsQdDixHMuYIZ6ovIoVnRpWEOV9b+63wQpiX9W9MCA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"29ce5cdab7e5fd44e6bab056cef14bc3874e6dfe36fa2945352cc4c7eafdece6","last_reissued_at":"2026-05-18T01:15:07.281234Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:15:07.281234Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1207.0470","source_version":3,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T01:15:07Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"wSjRc3MbTO8XCD818aK953SPXojOU9T++Qp7Db4RGl5TGtlJ29aV7N0r5FUF/q0wi2qJuWgxsY7qFb7xgkVaCA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-11T07:38:51.660082Z"},"content_sha256":"991ea4e1955308eaf81decf4d4be46c0fc7a36014463bd5fe4edb1bd6f6e5ce1","schema_version":"1.0","event_id":"sha256:991ea4e1955308eaf81decf4d4be46c0fc7a36014463bd5fe4edb1bd6f6e5ce1"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2012:FHHFZWVX4X6UJZV2WBLM54KLYO","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Spacetime dynamics of spinning particles - exact electromagnetic analogies","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["hep-th","math-ph","math.MP"],"primary_cat":"gr-qc","authors_text":"Jos\\'e Nat\\'ario, L. Filipe O. Costa, Miguel Zilh\\~ao","submitted_at":"2012-07-02T18:53:21Z","abstract_excerpt":"We compare the rigorous equations describing the motion of spinning test particles in gravitational and electromagnetic fields, and show that if the Mathisson-Pirani spin condition holds then exact gravito-electromagnetic analogies emerge. These analogies provide a familiar formalism to treat gravitational problems, as well as a means for comparing the two interactions. Fundamental differences are manifest in the symmetries and time projections of the electromagnetic and gravitational tidal tensors. The physical consequences of the symmetries of the tidal tensors are explored comparing the fol"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1207.0470","kind":"arxiv","version":3},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"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":"2026-05-18T01:15:07Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"00MxC98lx5FU/TnxZEdrY+poRGHzIklHbiIeTPwKLTDeTZHDiHc9V/cr2J5/9xETtphg+lLuBDmxuOY5n68yBQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-11T07:38:51.660808Z"},"content_sha256":"8473ccfff984f3ef63db7a00189dd832f230bb5ae6773c235bdd2ca043f9d9a7","schema_version":"1.0","event_id":"sha256:8473ccfff984f3ef63db7a00189dd832f230bb5ae6773c235bdd2ca043f9d9a7"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/FHHFZWVX4X6UJZV2WBLM54KLYO/bundle.json","state_url":"https://pith.science/pith/FHHFZWVX4X6UJZV2WBLM54KLYO/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/FHHFZWVX4X6UJZV2WBLM54KLYO/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":"2026-06-11T07:38:51Z","links":{"resolver":"https://pith.science/pith/FHHFZWVX4X6UJZV2WBLM54KLYO","bundle":"https://pith.science/pith/FHHFZWVX4X6UJZV2WBLM54KLYO/bundle.json","state":"https://pith.science/pith/FHHFZWVX4X6UJZV2WBLM54KLYO/state.json","well_known_bundle":"https://pith.science/.well-known/pith/FHHFZWVX4X6UJZV2WBLM54KLYO/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2012:FHHFZWVX4X6UJZV2WBLM54KLYO","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":"75786337647a9e1dd3f0805ecf7d6f926c57250e98cf53e3a21131ebc1ac6c1d","cross_cats_sorted":["hep-th","math-ph","math.MP"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2012-07-02T18:53:21Z","title_canon_sha256":"d09f8691b5c19b3fb0ffa211dc767e239b4b0f9586419b6f868cf43d6360c98a"},"schema_version":"1.0","source":{"id":"1207.0470","kind":"arxiv","version":3}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1207.0470","created_at":"2026-05-18T01:15:07Z"},{"alias_kind":"arxiv_version","alias_value":"1207.0470v3","created_at":"2026-05-18T01:15:07Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1207.0470","created_at":"2026-05-18T01:15:07Z"},{"alias_kind":"pith_short_12","alias_value":"FHHFZWVX4X6U","created_at":"2026-05-18T12:27:06Z"},{"alias_kind":"pith_short_16","alias_value":"FHHFZWVX4X6UJZV2","created_at":"2026-05-18T12:27:06Z"},{"alias_kind":"pith_short_8","alias_value":"FHHFZWVX","created_at":"2026-05-18T12:27:06Z"}],"graph_snapshots":[{"event_id":"sha256:8473ccfff984f3ef63db7a00189dd832f230bb5ae6773c235bdd2ca043f9d9a7","target":"graph","created_at":"2026-05-18T01:15:07Z","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":"We compare the rigorous equations describing the motion of spinning test particles in gravitational and electromagnetic fields, and show that if the Mathisson-Pirani spin condition holds then exact gravito-electromagnetic analogies emerge. These analogies provide a familiar formalism to treat gravitational problems, as well as a means for comparing the two interactions. Fundamental differences are manifest in the symmetries and time projections of the electromagnetic and gravitational tidal tensors. The physical consequences of the symmetries of the tidal tensors are explored comparing the fol","authors_text":"Jos\\'e Nat\\'ario, L. Filipe O. Costa, Miguel Zilh\\~ao","cross_cats":["hep-th","math-ph","math.MP"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2012-07-02T18:53:21Z","title":"Spacetime dynamics of spinning particles - exact electromagnetic analogies"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1207.0470","kind":"arxiv","version":3},"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":"sha256:991ea4e1955308eaf81decf4d4be46c0fc7a36014463bd5fe4edb1bd6f6e5ce1","target":"record","created_at":"2026-05-18T01:15:07Z","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":"75786337647a9e1dd3f0805ecf7d6f926c57250e98cf53e3a21131ebc1ac6c1d","cross_cats_sorted":["hep-th","math-ph","math.MP"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2012-07-02T18:53:21Z","title_canon_sha256":"d09f8691b5c19b3fb0ffa211dc767e239b4b0f9586419b6f868cf43d6360c98a"},"schema_version":"1.0","source":{"id":"1207.0470","kind":"arxiv","version":3}},"canonical_sha256":"29ce5cdab7e5fd44e6bab056cef14bc3874e6dfe36fa2945352cc4c7eafdece6","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"29ce5cdab7e5fd44e6bab056cef14bc3874e6dfe36fa2945352cc4c7eafdece6","first_computed_at":"2026-05-18T01:15:07.281234Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:15:07.281234Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"2FeWo3g2ExaXMNXCy8FMJq9BOVxk7M3S+pity4H43qs2YsQdDixHMuYIZ6ovIoVnRpWEOV9b+63wQpiX9W9MCA==","signature_status":"signed_v1","signed_at":"2026-05-18T01:15:07.281930Z","signed_message":"canonical_sha256_bytes"},"source_id":"1207.0470","source_kind":"arxiv","source_version":3}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:991ea4e1955308eaf81decf4d4be46c0fc7a36014463bd5fe4edb1bd6f6e5ce1","sha256:8473ccfff984f3ef63db7a00189dd832f230bb5ae6773c235bdd2ca043f9d9a7"],"state_sha256":"a254da6dc58c94417ea610d415eba9f4de900f67b1b3008f6a99b57ef7aed274"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"WYSTdlWRq3NSjAXCTBsVn2AqUn6EL02qz5PzmEJcX9osYckh8M5opE/5bEBW/1y3bJ+hs5qC/brfET0bRErrDg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-11T07:38:51.665373Z","bundle_sha256":"c65be2c22fcc6231d0df36262c4ec688398ce35baf3f8d5bf15ee9da28c3e513"}}