{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2007:FCF7H4JPJ23JLMLL6I2RA4RO7A","short_pith_number":"pith:FCF7H4JP","canonical_record":{"source":{"id":"0708.1144","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"astro-ph","submitted_at":"2007-08-08T16:31:33Z","cross_cats_sorted":["hep-ph"],"title_canon_sha256":"e72775355866f581f251163edf84d3fff7e6101e7108fee16bb3d08b40127899","abstract_canon_sha256":"23000ac0aeeea24be62b4e4cd549bceefc787a530034e8de45c852d5d7b87329"},"schema_version":"1.0"},"canonical_sha256":"288bf3f12f4eb695b16bf23510722ef8076da2f4b2a747796a941da8e5ef67ac","source":{"kind":"arxiv","id":"0708.1144","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"0708.1144","created_at":"2026-07-04T15:24:33Z"},{"alias_kind":"arxiv_version","alias_value":"0708.1144v1","created_at":"2026-07-04T15:24:33Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0708.1144","created_at":"2026-07-04T15:24:33Z"},{"alias_kind":"pith_short_12","alias_value":"FCF7H4JPJ23J","created_at":"2026-07-04T15:24:33Z"},{"alias_kind":"pith_short_16","alias_value":"FCF7H4JPJ23JLMLL","created_at":"2026-07-04T15:24:33Z"},{"alias_kind":"pith_short_8","alias_value":"FCF7H4JP","created_at":"2026-07-04T15:24:33Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2007:FCF7H4JPJ23JLMLL6I2RA4RO7A","target":"record","payload":{"canonical_record":{"source":{"id":"0708.1144","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"astro-ph","submitted_at":"2007-08-08T16:31:33Z","cross_cats_sorted":["hep-ph"],"title_canon_sha256":"e72775355866f581f251163edf84d3fff7e6101e7108fee16bb3d08b40127899","abstract_canon_sha256":"23000ac0aeeea24be62b4e4cd549bceefc787a530034e8de45c852d5d7b87329"},"schema_version":"1.0"},"canonical_sha256":"288bf3f12f4eb695b16bf23510722ef8076da2f4b2a747796a941da8e5ef67ac","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-04T15:24:33.947227Z","signature_b64":"GVHqoShYHsyXck+xVqHQYRQlp/Nl+TUFrk4tq5MDFfLLoBMlQL/cawwXJrxzaH3eONXVwECuwQCLMn2mPi8fCg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"288bf3f12f4eb695b16bf23510722ef8076da2f4b2a747796a941da8e5ef67ac","last_reissued_at":"2026-07-04T15:24:33.946739Z","signature_status":"signed_v1","first_computed_at":"2026-07-04T15:24:33.946739Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"0708.1144","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":"2026-07-04T15:24:33Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"3vtCvq/170vyW+fB8S/s7gItgpl/YMzLg7dIOmVcW+QN/WgLOB34rKgk7PBIJ0JYeIlS69zpCxqdulG9ilCcDw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-06T23:58:22.317287Z"},"content_sha256":"42b29cd923f59dafd9c9dd492d00edda79fb6f24fb48dce8a377bb6b1c221095","schema_version":"1.0","event_id":"sha256:42b29cd923f59dafd9c9dd492d00edda79fb6f24fb48dce8a377bb6b1c221095"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2007:FCF7H4JPJ23JLMLL6I2RA4RO7A","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Effects of Axion-Photon Mixing on Gamma-Ray Spectra from Magnetized Astrophysical Sources","license":"","headline":"","cross_cats":["hep-ph"],"primary_cat":"astro-ph","authors_text":"Guenter Sigl (APC, IAP, Kathrin A. Hochmuth (MPI Munich), Paris)","submitted_at":"2007-08-08T16:31:33Z","abstract_excerpt":"Astrophysical gamma-ray sources come in a variety of sizes and magnetizations. We deduce general conditions under which gamma-ray spectra from such sources would be significantly affected by axion-photon mixing. We show that, depending on strength and coherence of the magnetic field, axion couplings down to ~ 1/(10**13 GeV) can give rise to significant axion-photon conversions in the environment of accreting massive black holes. Resonances can occur between the axion mass term and the plasma frequency term as well as between the plasma frequency term and the vacuum Cotton-Mouton shift. Both re"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0708.1144","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/0708.1144/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"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":"2026-07-04T15:24:33Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"aaSjeUeZJyEWVfXn7r2aLZD5JurK0uxmi3VVINV/J0YhzHIa/1k0yH6/BZDjhiI0Gg2dvmgrpLPkENB/CYTaCg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-06T23:58:22.317803Z"},"content_sha256":"e653b4c5c0fa12416a7fa72272f8cc5dab3b4c10d94d88365fcd328e6c9f4d72","schema_version":"1.0","event_id":"sha256:e653b4c5c0fa12416a7fa72272f8cc5dab3b4c10d94d88365fcd328e6c9f4d72"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/FCF7H4JPJ23JLMLL6I2RA4RO7A/bundle.json","state_url":"https://pith.science/pith/FCF7H4JPJ23JLMLL6I2RA4RO7A/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/FCF7H4JPJ23JLMLL6I2RA4RO7A/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":"2026-08-06T23:58:22Z","links":{"resolver":"https://pith.science/pith/FCF7H4JPJ23JLMLL6I2RA4RO7A","bundle":"https://pith.science/pith/FCF7H4JPJ23JLMLL6I2RA4RO7A/bundle.json","state":"https://pith.science/pith/FCF7H4JPJ23JLMLL6I2RA4RO7A/state.json","well_known_bundle":"https://pith.science/.well-known/pith/FCF7H4JPJ23JLMLL6I2RA4RO7A/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2007:FCF7H4JPJ23JLMLL6I2RA4RO7A","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":"23000ac0aeeea24be62b4e4cd549bceefc787a530034e8de45c852d5d7b87329","cross_cats_sorted":["hep-ph"],"license":"","primary_cat":"astro-ph","submitted_at":"2007-08-08T16:31:33Z","title_canon_sha256":"e72775355866f581f251163edf84d3fff7e6101e7108fee16bb3d08b40127899"},"schema_version":"1.0","source":{"id":"0708.1144","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"0708.1144","created_at":"2026-07-04T15:24:33Z"},{"alias_kind":"arxiv_version","alias_value":"0708.1144v1","created_at":"2026-07-04T15:24:33Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0708.1144","created_at":"2026-07-04T15:24:33Z"},{"alias_kind":"pith_short_12","alias_value":"FCF7H4JPJ23J","created_at":"2026-07-04T15:24:33Z"},{"alias_kind":"pith_short_16","alias_value":"FCF7H4JPJ23JLMLL","created_at":"2026-07-04T15:24:33Z"},{"alias_kind":"pith_short_8","alias_value":"FCF7H4JP","created_at":"2026-07-04T15:24:33Z"}],"graph_snapshots":[{"event_id":"sha256:e653b4c5c0fa12416a7fa72272f8cc5dab3b4c10d94d88365fcd328e6c9f4d72","target":"graph","created_at":"2026-07-04T15:24:33Z","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"},"integrity":{"available":true,"clean":true,"detectors_run":[],"endpoint":"/pith/0708.1144/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Astrophysical gamma-ray sources come in a variety of sizes and magnetizations. We deduce general conditions under which gamma-ray spectra from such sources would be significantly affected by axion-photon mixing. We show that, depending on strength and coherence of the magnetic field, axion couplings down to ~ 1/(10**13 GeV) can give rise to significant axion-photon conversions in the environment of accreting massive black holes. Resonances can occur between the axion mass term and the plasma frequency term as well as between the plasma frequency term and the vacuum Cotton-Mouton shift. Both re","authors_text":"Guenter Sigl (APC, IAP, Kathrin A. Hochmuth (MPI Munich), Paris)","cross_cats":["hep-ph"],"headline":"","license":"","primary_cat":"astro-ph","submitted_at":"2007-08-08T16:31:33Z","title":"Effects of Axion-Photon Mixing on Gamma-Ray Spectra from Magnetized Astrophysical Sources"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0708.1144","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":"sha256:42b29cd923f59dafd9c9dd492d00edda79fb6f24fb48dce8a377bb6b1c221095","target":"record","created_at":"2026-07-04T15:24:33Z","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":"23000ac0aeeea24be62b4e4cd549bceefc787a530034e8de45c852d5d7b87329","cross_cats_sorted":["hep-ph"],"license":"","primary_cat":"astro-ph","submitted_at":"2007-08-08T16:31:33Z","title_canon_sha256":"e72775355866f581f251163edf84d3fff7e6101e7108fee16bb3d08b40127899"},"schema_version":"1.0","source":{"id":"0708.1144","kind":"arxiv","version":1}},"canonical_sha256":"288bf3f12f4eb695b16bf23510722ef8076da2f4b2a747796a941da8e5ef67ac","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"288bf3f12f4eb695b16bf23510722ef8076da2f4b2a747796a941da8e5ef67ac","first_computed_at":"2026-07-04T15:24:33.946739Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-04T15:24:33.946739Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"GVHqoShYHsyXck+xVqHQYRQlp/Nl+TUFrk4tq5MDFfLLoBMlQL/cawwXJrxzaH3eONXVwECuwQCLMn2mPi8fCg==","signature_status":"signed_v1","signed_at":"2026-07-04T15:24:33.947227Z","signed_message":"canonical_sha256_bytes"},"source_id":"0708.1144","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:42b29cd923f59dafd9c9dd492d00edda79fb6f24fb48dce8a377bb6b1c221095","sha256:e653b4c5c0fa12416a7fa72272f8cc5dab3b4c10d94d88365fcd328e6c9f4d72"],"state_sha256":"91de005873f310f4289164312e774010403e0fa1ea97e1d9b334119cf0ef2699"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"1wtpDJNc1bkRryp/gP4V2XzbpjTAZM3ZukK1TNFGd8LJRP4QlZe9Jd+pngdYM65XSTruW2lAkItaql8AEcqzDw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-06T23:58:22.321221Z","bundle_sha256":"fa20c2b263c7c337ba258d02d145969381a7601c5d9a45f51bcb05aaf89fe9fe"}}