{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2014:GNXH5RF5MZ4Q2RKAIERJXQKCXC","short_pith_number":"pith:GNXH5RF5","canonical_record":{"source":{"id":"1401.0663","kind":"arxiv","version":5},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2014-01-03T15:45:53Z","cross_cats_sorted":["astro-ph.CO"],"title_canon_sha256":"dc7c4bdcced7e85ddc444b2cc60652729a8502bd6fc481b4c65d7728e45e30f0","abstract_canon_sha256":"7ce36c690cb9807f63f8b2502167fd56f6f6b45d8aaf8d068ced4ac39b783fc3"},"schema_version":"1.0"},"canonical_sha256":"336e7ec4bd66790d454041229bc142b88bb0e7d0317c7ecc84fd7e8a2ca8de9e","source":{"kind":"arxiv","id":"1401.0663","version":5},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1401.0663","created_at":"2026-05-18T02:18:51Z"},{"alias_kind":"arxiv_version","alias_value":"1401.0663v5","created_at":"2026-05-18T02:18:51Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1401.0663","created_at":"2026-05-18T02:18:51Z"},{"alias_kind":"pith_short_12","alias_value":"GNXH5RF5MZ4Q","created_at":"2026-05-18T12:28:30Z"},{"alias_kind":"pith_short_16","alias_value":"GNXH5RF5MZ4Q2RKA","created_at":"2026-05-18T12:28:30Z"},{"alias_kind":"pith_short_8","alias_value":"GNXH5RF5","created_at":"2026-05-18T12:28:30Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2014:GNXH5RF5MZ4Q2RKAIERJXQKCXC","target":"record","payload":{"canonical_record":{"source":{"id":"1401.0663","kind":"arxiv","version":5},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2014-01-03T15:45:53Z","cross_cats_sorted":["astro-ph.CO"],"title_canon_sha256":"dc7c4bdcced7e85ddc444b2cc60652729a8502bd6fc481b4c65d7728e45e30f0","abstract_canon_sha256":"7ce36c690cb9807f63f8b2502167fd56f6f6b45d8aaf8d068ced4ac39b783fc3"},"schema_version":"1.0"},"canonical_sha256":"336e7ec4bd66790d454041229bc142b88bb0e7d0317c7ecc84fd7e8a2ca8de9e","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:18:51.920648Z","signature_b64":"phd8RwyTsHXJuT+DOC9gmnH6VpAJxpyM2ikr/7kinaDoIXjPtmcPZlmpLTuIcyDOP8HsVznDepo5vptbPh8MAQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"336e7ec4bd66790d454041229bc142b88bb0e7d0317c7ecc84fd7e8a2ca8de9e","last_reissued_at":"2026-05-18T02:18:51.919930Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:18:51.919930Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1401.0663","source_version":5,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T02:18:51Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"EeNkcuoAZMt7xgl8i58eChLeXYKX4WVGFTHby5Sxvhxt2OV5Xe25+pS8VJXoK11tcbNEosGx3R03cuIDDZTlDg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-19T21:29:45.482782Z"},"content_sha256":"ea294dca4ac089321686ca2a0f051632e17420bf1a69aca29678cbeb730c0448","schema_version":"1.0","event_id":"sha256:ea294dca4ac089321686ca2a0f051632e17420bf1a69aca29678cbeb730c0448"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2014:GNXH5RF5MZ4Q2RKAIERJXQKCXC","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Photons in a cold axion background and strong magnetic fields: polarimetric consequences","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.CO"],"primary_cat":"hep-ph","authors_text":"Albert Renau, Domenec Espriu","submitted_at":"2014-01-03T15:45:53Z","abstract_excerpt":"In this work we analyze the propagation of photons in an environment where a strong magnetic field (perpendicular to the photon momenta) coexists with an oscillating cold axion background with the characteristics expected from dark matter in the galactic halo. Qualitatively, the main effect of the combined background is to produce a three-way mixing among the two photon polarizations and the axion. It is interesting to note that in spite of the extremely weak interaction of photons with the cold axion background, its effects compete with those coming from the magnetic field in some regions of "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1401.0663","kind":"arxiv","version":5},"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":"2026-05-18T02:18:51Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"+nwn58UIMSl37FfycWUZiZuwfXoLgCuLqCQO7esO/HkHiJ1s2CkjMl99/bnxwB27xAK9o4NP8XZz8ojstXDMAw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-19T21:29:45.483131Z"},"content_sha256":"2959a310a979eb2df3ce7de720594c8e6c4cf74e0eaaa0380ebae5cbeff947ad","schema_version":"1.0","event_id":"sha256:2959a310a979eb2df3ce7de720594c8e6c4cf74e0eaaa0380ebae5cbeff947ad"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/GNXH5RF5MZ4Q2RKAIERJXQKCXC/bundle.json","state_url":"https://pith.science/pith/GNXH5RF5MZ4Q2RKAIERJXQKCXC/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/GNXH5RF5MZ4Q2RKAIERJXQKCXC/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":"2026-05-19T21:29:45Z","links":{"resolver":"https://pith.science/pith/GNXH5RF5MZ4Q2RKAIERJXQKCXC","bundle":"https://pith.science/pith/GNXH5RF5MZ4Q2RKAIERJXQKCXC/bundle.json","state":"https://pith.science/pith/GNXH5RF5MZ4Q2RKAIERJXQKCXC/state.json","well_known_bundle":"https://pith.science/.well-known/pith/GNXH5RF5MZ4Q2RKAIERJXQKCXC/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2014:GNXH5RF5MZ4Q2RKAIERJXQKCXC","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":"7ce36c690cb9807f63f8b2502167fd56f6f6b45d8aaf8d068ced4ac39b783fc3","cross_cats_sorted":["astro-ph.CO"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2014-01-03T15:45:53Z","title_canon_sha256":"dc7c4bdcced7e85ddc444b2cc60652729a8502bd6fc481b4c65d7728e45e30f0"},"schema_version":"1.0","source":{"id":"1401.0663","kind":"arxiv","version":5}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1401.0663","created_at":"2026-05-18T02:18:51Z"},{"alias_kind":"arxiv_version","alias_value":"1401.0663v5","created_at":"2026-05-18T02:18:51Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1401.0663","created_at":"2026-05-18T02:18:51Z"},{"alias_kind":"pith_short_12","alias_value":"GNXH5RF5MZ4Q","created_at":"2026-05-18T12:28:30Z"},{"alias_kind":"pith_short_16","alias_value":"GNXH5RF5MZ4Q2RKA","created_at":"2026-05-18T12:28:30Z"},{"alias_kind":"pith_short_8","alias_value":"GNXH5RF5","created_at":"2026-05-18T12:28:30Z"}],"graph_snapshots":[{"event_id":"sha256:2959a310a979eb2df3ce7de720594c8e6c4cf74e0eaaa0380ebae5cbeff947ad","target":"graph","created_at":"2026-05-18T02:18:51Z","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":"In this work we analyze the propagation of photons in an environment where a strong magnetic field (perpendicular to the photon momenta) coexists with an oscillating cold axion background with the characteristics expected from dark matter in the galactic halo. Qualitatively, the main effect of the combined background is to produce a three-way mixing among the two photon polarizations and the axion. It is interesting to note that in spite of the extremely weak interaction of photons with the cold axion background, its effects compete with those coming from the magnetic field in some regions of ","authors_text":"Albert Renau, Domenec Espriu","cross_cats":["astro-ph.CO"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2014-01-03T15:45:53Z","title":"Photons in a cold axion background and strong magnetic fields: polarimetric consequences"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1401.0663","kind":"arxiv","version":5},"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:ea294dca4ac089321686ca2a0f051632e17420bf1a69aca29678cbeb730c0448","target":"record","created_at":"2026-05-18T02:18:51Z","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":"7ce36c690cb9807f63f8b2502167fd56f6f6b45d8aaf8d068ced4ac39b783fc3","cross_cats_sorted":["astro-ph.CO"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2014-01-03T15:45:53Z","title_canon_sha256":"dc7c4bdcced7e85ddc444b2cc60652729a8502bd6fc481b4c65d7728e45e30f0"},"schema_version":"1.0","source":{"id":"1401.0663","kind":"arxiv","version":5}},"canonical_sha256":"336e7ec4bd66790d454041229bc142b88bb0e7d0317c7ecc84fd7e8a2ca8de9e","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"336e7ec4bd66790d454041229bc142b88bb0e7d0317c7ecc84fd7e8a2ca8de9e","first_computed_at":"2026-05-18T02:18:51.919930Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:18:51.919930Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"phd8RwyTsHXJuT+DOC9gmnH6VpAJxpyM2ikr/7kinaDoIXjPtmcPZlmpLTuIcyDOP8HsVznDepo5vptbPh8MAQ==","signature_status":"signed_v1","signed_at":"2026-05-18T02:18:51.920648Z","signed_message":"canonical_sha256_bytes"},"source_id":"1401.0663","source_kind":"arxiv","source_version":5}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:ea294dca4ac089321686ca2a0f051632e17420bf1a69aca29678cbeb730c0448","sha256:2959a310a979eb2df3ce7de720594c8e6c4cf74e0eaaa0380ebae5cbeff947ad"],"state_sha256":"874391e23d72b3f98b8b960146e32da3a94a1ecb8cecb1806ba52642680177e0"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"TZ62+3KgkCv3xjg5XKoTgcunI7y89hInRgid8DynUns1BajTVe3kZ3xUOU7ob2Q6HeDfgo7PTPsbFgoEVLbyCw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-19T21:29:45.485146Z","bundle_sha256":"bba863d7aa5eb15a248c2a50f9fedfda6b5c5973d9fd713f73a83a45a4f022e4"}}