{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2011:ALRWG7TZYPOMLVNSJ332FTI7DB","short_pith_number":"pith:ALRWG7TZ","canonical_record":{"source":{"id":"1111.2030","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2011-11-08T20:00:28Z","cross_cats_sorted":["hep-ph"],"title_canon_sha256":"f60043ef8562694a60702ee68eb566dafdca3f751db4019baf116d7155b176ad","abstract_canon_sha256":"a73d9bf67e102e15ccf1f909da0d85a4f1b8a83a1af4f1da94f042fd93313ac0"},"schema_version":"1.0"},"canonical_sha256":"02e3637e79c3dcc5d5b24ef7a2cd1f18511f8505b65a5a7598d3f2dbea439bb1","source":{"kind":"arxiv","id":"1111.2030","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1111.2030","created_at":"2026-05-18T03:52:54Z"},{"alias_kind":"arxiv_version","alias_value":"1111.2030v2","created_at":"2026-05-18T03:52:54Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1111.2030","created_at":"2026-05-18T03:52:54Z"},{"alias_kind":"pith_short_12","alias_value":"ALRWG7TZYPOM","created_at":"2026-05-18T12:26:24Z"},{"alias_kind":"pith_short_16","alias_value":"ALRWG7TZYPOMLVNS","created_at":"2026-05-18T12:26:24Z"},{"alias_kind":"pith_short_8","alias_value":"ALRWG7TZ","created_at":"2026-05-18T12:26:24Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2011:ALRWG7TZYPOMLVNSJ332FTI7DB","target":"record","payload":{"canonical_record":{"source":{"id":"1111.2030","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2011-11-08T20:00:28Z","cross_cats_sorted":["hep-ph"],"title_canon_sha256":"f60043ef8562694a60702ee68eb566dafdca3f751db4019baf116d7155b176ad","abstract_canon_sha256":"a73d9bf67e102e15ccf1f909da0d85a4f1b8a83a1af4f1da94f042fd93313ac0"},"schema_version":"1.0"},"canonical_sha256":"02e3637e79c3dcc5d5b24ef7a2cd1f18511f8505b65a5a7598d3f2dbea439bb1","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T03:52:54.787661Z","signature_b64":"gQ2zFxrbfdq3TrkFCEN+qH43tXuOSjWcDuA+ukKPcoQRf3YuZwueFwRaunz57hjmGPk0bk/dpU7hojK1jlaIAA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"02e3637e79c3dcc5d5b24ef7a2cd1f18511f8505b65a5a7598d3f2dbea439bb1","last_reissued_at":"2026-05-18T03:52:54.786902Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T03:52:54.786902Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1111.2030","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":"2026-05-18T03:52:54Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"4R6aeYgMkQRBliUotLTNqkIp8CB6XtPG9Pdj87JWXN7i68tE8lvfA6LDYaQHNx0SxkV2q6QYf/jNigDDO1QOAQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-22T17:33:46.086592Z"},"content_sha256":"3dab8609742e3ff24cdb1a3d02316f6eda499ff08e51c0c7bc0ffec7f19f12cb","schema_version":"1.0","event_id":"sha256:3dab8609742e3ff24cdb1a3d02316f6eda499ff08e51c0c7bc0ffec7f19f12cb"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2011:ALRWG7TZYPOMLVNSJ332FTI7DB","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Resonant magnetic fields from inflation","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["hep-ph"],"primary_cat":"astro-ph.CO","authors_text":"Christian T. Byrnes, Federico R. Urban, Lukas Hollenstein, Rajeev Kumar Jain","submitted_at":"2011-11-08T20:00:28Z","abstract_excerpt":"We propose a novel scenario to generate primordial magnetic fields during inflation induced by an oscillating coupling of the electromagnetic field to the inflaton. This resonant mechanism has two key advantages over previous proposals. First of all, it generates a narrow band of magnetic fields at any required wavelength, thereby allaying the usual problem of a strongly blue spectrum and its associated backreaction. Secondly, it avoids the need for a strong coupling as the coupling is oscillating rather than growing or decaying exponentially. Despite these major advantages, we find that the b"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1111.2030","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":""},"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":"2026-05-18T03:52:54Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"R/rb/+fzgmaYHUE+BP/kQO3mAA8cxZmFAgumRlPkdm0ph/iEQk9KjcSqjauWuXuaN/Qz702mWkQ31S5QTUzyCA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-22T17:33:46.087256Z"},"content_sha256":"1bc37a9c1e10f6a88d7d349cf7f6da1e5da14b2df5dc740a10be78f4203bc9f9","schema_version":"1.0","event_id":"sha256:1bc37a9c1e10f6a88d7d349cf7f6da1e5da14b2df5dc740a10be78f4203bc9f9"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/ALRWG7TZYPOMLVNSJ332FTI7DB/bundle.json","state_url":"https://pith.science/pith/ALRWG7TZYPOMLVNSJ332FTI7DB/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/ALRWG7TZYPOMLVNSJ332FTI7DB/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":"2026-05-22T17:33:46Z","links":{"resolver":"https://pith.science/pith/ALRWG7TZYPOMLVNSJ332FTI7DB","bundle":"https://pith.science/pith/ALRWG7TZYPOMLVNSJ332FTI7DB/bundle.json","state":"https://pith.science/pith/ALRWG7TZYPOMLVNSJ332FTI7DB/state.json","well_known_bundle":"https://pith.science/.well-known/pith/ALRWG7TZYPOMLVNSJ332FTI7DB/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2011:ALRWG7TZYPOMLVNSJ332FTI7DB","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":"a73d9bf67e102e15ccf1f909da0d85a4f1b8a83a1af4f1da94f042fd93313ac0","cross_cats_sorted":["hep-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2011-11-08T20:00:28Z","title_canon_sha256":"f60043ef8562694a60702ee68eb566dafdca3f751db4019baf116d7155b176ad"},"schema_version":"1.0","source":{"id":"1111.2030","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1111.2030","created_at":"2026-05-18T03:52:54Z"},{"alias_kind":"arxiv_version","alias_value":"1111.2030v2","created_at":"2026-05-18T03:52:54Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1111.2030","created_at":"2026-05-18T03:52:54Z"},{"alias_kind":"pith_short_12","alias_value":"ALRWG7TZYPOM","created_at":"2026-05-18T12:26:24Z"},{"alias_kind":"pith_short_16","alias_value":"ALRWG7TZYPOMLVNS","created_at":"2026-05-18T12:26:24Z"},{"alias_kind":"pith_short_8","alias_value":"ALRWG7TZ","created_at":"2026-05-18T12:26:24Z"}],"graph_snapshots":[{"event_id":"sha256:1bc37a9c1e10f6a88d7d349cf7f6da1e5da14b2df5dc740a10be78f4203bc9f9","target":"graph","created_at":"2026-05-18T03:52:54Z","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 propose a novel scenario to generate primordial magnetic fields during inflation induced by an oscillating coupling of the electromagnetic field to the inflaton. This resonant mechanism has two key advantages over previous proposals. First of all, it generates a narrow band of magnetic fields at any required wavelength, thereby allaying the usual problem of a strongly blue spectrum and its associated backreaction. Secondly, it avoids the need for a strong coupling as the coupling is oscillating rather than growing or decaying exponentially. Despite these major advantages, we find that the b","authors_text":"Christian T. Byrnes, Federico R. Urban, Lukas Hollenstein, Rajeev Kumar Jain","cross_cats":["hep-ph"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2011-11-08T20:00:28Z","title":"Resonant magnetic fields from inflation"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1111.2030","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":"sha256:3dab8609742e3ff24cdb1a3d02316f6eda499ff08e51c0c7bc0ffec7f19f12cb","target":"record","created_at":"2026-05-18T03:52:54Z","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":"a73d9bf67e102e15ccf1f909da0d85a4f1b8a83a1af4f1da94f042fd93313ac0","cross_cats_sorted":["hep-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2011-11-08T20:00:28Z","title_canon_sha256":"f60043ef8562694a60702ee68eb566dafdca3f751db4019baf116d7155b176ad"},"schema_version":"1.0","source":{"id":"1111.2030","kind":"arxiv","version":2}},"canonical_sha256":"02e3637e79c3dcc5d5b24ef7a2cd1f18511f8505b65a5a7598d3f2dbea439bb1","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"02e3637e79c3dcc5d5b24ef7a2cd1f18511f8505b65a5a7598d3f2dbea439bb1","first_computed_at":"2026-05-18T03:52:54.786902Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T03:52:54.786902Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"gQ2zFxrbfdq3TrkFCEN+qH43tXuOSjWcDuA+ukKPcoQRf3YuZwueFwRaunz57hjmGPk0bk/dpU7hojK1jlaIAA==","signature_status":"signed_v1","signed_at":"2026-05-18T03:52:54.787661Z","signed_message":"canonical_sha256_bytes"},"source_id":"1111.2030","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:3dab8609742e3ff24cdb1a3d02316f6eda499ff08e51c0c7bc0ffec7f19f12cb","sha256:1bc37a9c1e10f6a88d7d349cf7f6da1e5da14b2df5dc740a10be78f4203bc9f9"],"state_sha256":"a86e3268b64d8ff83e3b712fa91ea9d71bb537327bde662932261a8039430386"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"lXwCO/8wWVv6G5oub4COS/PJys1nUwT6KDzVUeO+HeNLVJsQjeMsa6JLoS6xystnDqE7bx0KqKnYqGwPBt2TBw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-22T17:33:46.090660Z","bundle_sha256":"19ab2d304527ba26446cff1b22f2b60485fa968362eb73b17e444cd0bcbe83c8"}}