{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2014:WCSOZLOWBEZNNUL2GAVYYTKVKU","short_pith_number":"pith:WCSOZLOW","canonical_record":{"source":{"id":"1412.8248","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2014-12-29T02:48:09Z","cross_cats_sorted":[],"title_canon_sha256":"adeaae1324b387cbb9e71a9eec173f0f40a362c19eb2227f49a77d3c1c307932","abstract_canon_sha256":"3b9adf83366886cf250492b3b1422ee4084dd7ed40fcc3cb870e859afc44b7bf"},"schema_version":"1.0"},"canonical_sha256":"b0a4ecadd60932d6d17a302b8c4d5555252a8cf173592523ce91cc7ce9c0b179","source":{"kind":"arxiv","id":"1412.8248","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1412.8248","created_at":"2026-05-18T02:30:23Z"},{"alias_kind":"arxiv_version","alias_value":"1412.8248v1","created_at":"2026-05-18T02:30:23Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1412.8248","created_at":"2026-05-18T02:30:23Z"},{"alias_kind":"pith_short_12","alias_value":"WCSOZLOWBEZN","created_at":"2026-05-18T12:28:54Z"},{"alias_kind":"pith_short_16","alias_value":"WCSOZLOWBEZNNUL2","created_at":"2026-05-18T12:28:54Z"},{"alias_kind":"pith_short_8","alias_value":"WCSOZLOW","created_at":"2026-05-18T12:28:54Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2014:WCSOZLOWBEZNNUL2GAVYYTKVKU","target":"record","payload":{"canonical_record":{"source":{"id":"1412.8248","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2014-12-29T02:48:09Z","cross_cats_sorted":[],"title_canon_sha256":"adeaae1324b387cbb9e71a9eec173f0f40a362c19eb2227f49a77d3c1c307932","abstract_canon_sha256":"3b9adf83366886cf250492b3b1422ee4084dd7ed40fcc3cb870e859afc44b7bf"},"schema_version":"1.0"},"canonical_sha256":"b0a4ecadd60932d6d17a302b8c4d5555252a8cf173592523ce91cc7ce9c0b179","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:30:23.692628Z","signature_b64":"ypK+jIOfRC3RcQst/+HAtsiNnzf66hGL6Vcn5LEWepHWIC4EJZUo9Q1Y9l8d9hMgV99M2c41adHz+mbrS1E7AQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"b0a4ecadd60932d6d17a302b8c4d5555252a8cf173592523ce91cc7ce9c0b179","last_reissued_at":"2026-05-18T02:30:23.691967Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:30:23.691967Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1412.8248","source_version":1,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T02:30:23Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"cc0Beo7KZupWCBOfQoenJm/4aayABQcSYs3aBMPlUaqQsw9JIP6XlxjOo03G5uUml1a5tL+YTPbO8tVNmEsnDw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-31T08:19:08.688386Z"},"content_sha256":"d9bac80362db23c295c056ea768a1e91755ca3877aab5c088b42b0f976362614","schema_version":"1.0","event_id":"sha256:d9bac80362db23c295c056ea768a1e91755ca3877aab5c088b42b0f976362614"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2014:WCSOZLOWBEZNNUL2GAVYYTKVKU","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Metric-torsion preheating: cosmic dynamo mechanism?","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.GA","authors_text":"Brasil), L C Garcia de Andrade (dept of theoretical physics, Rio de Janeiro, RJ, UERJ","submitted_at":"2014-12-29T02:48:09Z","abstract_excerpt":"Earlier Bassett et al [Phys Rev D 63 (2001) 023506] investigated the amplification of large scale magnetic fields during preheating and inflation in several different models. They argued that in the presence of conductivity resonance effect is weakened. From a dynamo equation in spacetimes endowed with torsion recently derived by Garcia de Andrade [Phys Lett B 711: 143 (2012)] it is shown that a in a universe with pure torsion in Minkowski spacetime the cosmological magnetic field is enhanced by ohmic or non-conductivity effect, which shows that the metric-torsion effects is worth while of bei"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1412.8248","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"},"verdict_id":null},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T02:30:23Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"oLMSgVUvEs6z3sqO46Irm1MuOXCEwsu4JJ1lRSeePfjFFNo6RaNLMFHnKcaQ4jNS3O/GacR6fxrAijma79l1AA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-31T08:19:08.688772Z"},"content_sha256":"6e97680a12b3a58fa46529ed5b6e2381f203d9164f5293b89f8edb41fb98e0c7","schema_version":"1.0","event_id":"sha256:6e97680a12b3a58fa46529ed5b6e2381f203d9164f5293b89f8edb41fb98e0c7"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/WCSOZLOWBEZNNUL2GAVYYTKVKU/bundle.json","state_url":"https://pith.science/pith/WCSOZLOWBEZNNUL2GAVYYTKVKU/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/WCSOZLOWBEZNNUL2GAVYYTKVKU/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":"2026-05-31T08:19:08Z","links":{"resolver":"https://pith.science/pith/WCSOZLOWBEZNNUL2GAVYYTKVKU","bundle":"https://pith.science/pith/WCSOZLOWBEZNNUL2GAVYYTKVKU/bundle.json","state":"https://pith.science/pith/WCSOZLOWBEZNNUL2GAVYYTKVKU/state.json","well_known_bundle":"https://pith.science/.well-known/pith/WCSOZLOWBEZNNUL2GAVYYTKVKU/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2014:WCSOZLOWBEZNNUL2GAVYYTKVKU","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":"3b9adf83366886cf250492b3b1422ee4084dd7ed40fcc3cb870e859afc44b7bf","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2014-12-29T02:48:09Z","title_canon_sha256":"adeaae1324b387cbb9e71a9eec173f0f40a362c19eb2227f49a77d3c1c307932"},"schema_version":"1.0","source":{"id":"1412.8248","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1412.8248","created_at":"2026-05-18T02:30:23Z"},{"alias_kind":"arxiv_version","alias_value":"1412.8248v1","created_at":"2026-05-18T02:30:23Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1412.8248","created_at":"2026-05-18T02:30:23Z"},{"alias_kind":"pith_short_12","alias_value":"WCSOZLOWBEZN","created_at":"2026-05-18T12:28:54Z"},{"alias_kind":"pith_short_16","alias_value":"WCSOZLOWBEZNNUL2","created_at":"2026-05-18T12:28:54Z"},{"alias_kind":"pith_short_8","alias_value":"WCSOZLOW","created_at":"2026-05-18T12:28:54Z"}],"graph_snapshots":[{"event_id":"sha256:6e97680a12b3a58fa46529ed5b6e2381f203d9164f5293b89f8edb41fb98e0c7","target":"graph","created_at":"2026-05-18T02:30:23Z","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":"Earlier Bassett et al [Phys Rev D 63 (2001) 023506] investigated the amplification of large scale magnetic fields during preheating and inflation in several different models. They argued that in the presence of conductivity resonance effect is weakened. From a dynamo equation in spacetimes endowed with torsion recently derived by Garcia de Andrade [Phys Lett B 711: 143 (2012)] it is shown that a in a universe with pure torsion in Minkowski spacetime the cosmological magnetic field is enhanced by ohmic or non-conductivity effect, which shows that the metric-torsion effects is worth while of bei","authors_text":"Brasil), L C Garcia de Andrade (dept of theoretical physics, Rio de Janeiro, RJ, UERJ","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2014-12-29T02:48:09Z","title":"Metric-torsion preheating: cosmic dynamo mechanism?"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1412.8248","kind":"arxiv","version":1},"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:d9bac80362db23c295c056ea768a1e91755ca3877aab5c088b42b0f976362614","target":"record","created_at":"2026-05-18T02:30:23Z","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":"3b9adf83366886cf250492b3b1422ee4084dd7ed40fcc3cb870e859afc44b7bf","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2014-12-29T02:48:09Z","title_canon_sha256":"adeaae1324b387cbb9e71a9eec173f0f40a362c19eb2227f49a77d3c1c307932"},"schema_version":"1.0","source":{"id":"1412.8248","kind":"arxiv","version":1}},"canonical_sha256":"b0a4ecadd60932d6d17a302b8c4d5555252a8cf173592523ce91cc7ce9c0b179","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"b0a4ecadd60932d6d17a302b8c4d5555252a8cf173592523ce91cc7ce9c0b179","first_computed_at":"2026-05-18T02:30:23.691967Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:30:23.691967Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"ypK+jIOfRC3RcQst/+HAtsiNnzf66hGL6Vcn5LEWepHWIC4EJZUo9Q1Y9l8d9hMgV99M2c41adHz+mbrS1E7AQ==","signature_status":"signed_v1","signed_at":"2026-05-18T02:30:23.692628Z","signed_message":"canonical_sha256_bytes"},"source_id":"1412.8248","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:d9bac80362db23c295c056ea768a1e91755ca3877aab5c088b42b0f976362614","sha256:6e97680a12b3a58fa46529ed5b6e2381f203d9164f5293b89f8edb41fb98e0c7"],"state_sha256":"60d4fcf9a0077b0489db7db715157b0b68de67bc3f3159b980ac08b77efdc5dc"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"CJE/1xJJwDg+QQqei611kuQRd6cNC4S2hK8R7p6LksZKtn19YNfMDhVAxD1J39xUAeuId59KiwuZtP+G2iojAw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-31T08:19:08.692456Z","bundle_sha256":"3748aa222674b02ce4cb1aad1c6e0a91622b8d972261b5dbcf68fc4c070620f4"}}