{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:1997:67T7ZMG2HYYVMSLIGVRQ2V656X","short_pith_number":"pith:67T7ZMG2","schema_version":"1.0","canonical_sha256":"f7e7fcb0da3e3156496835630d57ddf5e74270a393b7728ae7db2432a3d30179","source":{"kind":"arxiv","id":"hep-th/9702025","version":1},"attestation_state":"computed","paper":{"title":"Topological Invariants, Instantons and Chiral Anomaly on Spaces with Torsion","license":"","headline":"","cross_cats":["gr-qc"],"primary_cat":"hep-th","authors_text":"Jorge Zanelli, Osvaldo Chandia","submitted_at":"1997-02-03T18:44:05Z","abstract_excerpt":"In a spacetime with nonvanishing torsion there can occur topologically stable configurations associated with the frame bundle which are independent of the curvature. The relevant topological invariants are integrals of local scalar densities first discussed by Nieh and Yan (N-Y). In four dimensions, the N-Y form $N= (T^a \\wedge T_a - R_{ab} \\wedge e^a \\wedge e^b)$ is the only closed 4-form invariant under local Lorentz rotations associated with the torsion of the manifold. The integral of $N$ over a compact D-dimensional (Euclidean) manifold is shown to be a topological invariant related to th"},"verification_status":{"content_addressed":true,"pith_receipt":true,"author_attested":false,"weak_author_claims":0,"strong_author_claims":0,"externally_anchored":false,"storage_verified":false,"citation_signatures":0,"replication_records":0,"graph_snapshot":true,"references_resolved":false,"formal_links_present":false},"canonical_record":{"source":{"id":"hep-th/9702025","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"hep-th","submitted_at":"1997-02-03T18:44:05Z","cross_cats_sorted":["gr-qc"],"title_canon_sha256":"63dee606c996ea339e93914130e80c6aa224e4792493b038b5b388c0c117c9c3","abstract_canon_sha256":"2a50b6861fe4af1c4c94eb1fa7d04be8fa3f080693bc105ee4d269a006b6e50e"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:08:02.329070Z","signature_b64":"U3ETV94iOZ2h8XxsqeILMRVu1cU+Awl+RIaxQx5lKrrKxAs5JAJFoE4fEUACIarxzK929aSzEA5rCQFr8lxxCQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"f7e7fcb0da3e3156496835630d57ddf5e74270a393b7728ae7db2432a3d30179","last_reissued_at":"2026-05-18T01:08:02.328639Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:08:02.328639Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Topological Invariants, Instantons and Chiral Anomaly on Spaces with Torsion","license":"","headline":"","cross_cats":["gr-qc"],"primary_cat":"hep-th","authors_text":"Jorge Zanelli, Osvaldo Chandia","submitted_at":"1997-02-03T18:44:05Z","abstract_excerpt":"In a spacetime with nonvanishing torsion there can occur topologically stable configurations associated with the frame bundle which are independent of the curvature. The relevant topological invariants are integrals of local scalar densities first discussed by Nieh and Yan (N-Y). In four dimensions, the N-Y form $N= (T^a \\wedge T_a - R_{ab} \\wedge e^a \\wedge e^b)$ is the only closed 4-form invariant under local Lorentz rotations associated with the torsion of the manifold. The integral of $N$ over a compact D-dimensional (Euclidean) manifold is shown to be a topological invariant related to th"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"hep-th/9702025","kind":"arxiv","version":1},"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"},"aliases":[{"alias_kind":"arxiv","alias_value":"hep-th/9702025","created_at":"2026-05-18T01:08:02.328700+00:00"},{"alias_kind":"arxiv_version","alias_value":"hep-th/9702025v1","created_at":"2026-05-18T01:08:02.328700+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.hep-th/9702025","created_at":"2026-05-18T01:08:02.328700+00:00"},{"alias_kind":"pith_short_12","alias_value":"67T7ZMG2HYYV","created_at":"2026-05-18T12:25:48.327863+00:00"},{"alias_kind":"pith_short_16","alias_value":"67T7ZMG2HYYVMSLI","created_at":"2026-05-18T12:25:48.327863+00:00"},{"alias_kind":"pith_short_8","alias_value":"67T7ZMG2","created_at":"2026-05-18T12:25:48.327863+00:00"}],"events":[],"event_summary":{},"paper_claims":[],"inbound_citations":{"count":0,"internal_anchor_count":0,"sample":[]},"formal_canon":{"evidence_count":0,"sample":[],"anchors":[]},"links":{"html":"https://pith.science/pith/67T7ZMG2HYYVMSLIGVRQ2V656X","json":"https://pith.science/pith/67T7ZMG2HYYVMSLIGVRQ2V656X.json","graph_json":"https://pith.science/api/pith-number/67T7ZMG2HYYVMSLIGVRQ2V656X/graph.json","events_json":"https://pith.science/api/pith-number/67T7ZMG2HYYVMSLIGVRQ2V656X/events.json","paper":"https://pith.science/paper/67T7ZMG2"},"agent_actions":{"view_html":"https://pith.science/pith/67T7ZMG2HYYVMSLIGVRQ2V656X","download_json":"https://pith.science/pith/67T7ZMG2HYYVMSLIGVRQ2V656X.json","view_paper":"https://pith.science/paper/67T7ZMG2","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=hep-th/9702025&json=true","fetch_graph":"https://pith.science/api/pith-number/67T7ZMG2HYYVMSLIGVRQ2V656X/graph.json","fetch_events":"https://pith.science/api/pith-number/67T7ZMG2HYYVMSLIGVRQ2V656X/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/67T7ZMG2HYYVMSLIGVRQ2V656X/action/timestamp_anchor","attest_storage":"https://pith.science/pith/67T7ZMG2HYYVMSLIGVRQ2V656X/action/storage_attestation","attest_author":"https://pith.science/pith/67T7ZMG2HYYVMSLIGVRQ2V656X/action/author_attestation","sign_citation":"https://pith.science/pith/67T7ZMG2HYYVMSLIGVRQ2V656X/action/citation_signature","submit_replication":"https://pith.science/pith/67T7ZMG2HYYVMSLIGVRQ2V656X/action/replication_record"}},"created_at":"2026-05-18T01:08:02.328700+00:00","updated_at":"2026-05-18T01:08:02.328700+00:00"}