{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2008:WZDLBK245EVNLCNR2IJGQ4LPUN","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":"933233cfce8ab179dad6e1df3a8c80b13a32713bbc3c549b4ca5fc65247d1c62","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph","submitted_at":"2008-04-10T19:07:13Z","title_canon_sha256":"ad40e06a66ff013279d3af6cdaf8424e1a95439d9c17dd27eb40ae8b83061cd4"},"schema_version":"1.0","source":{"id":"0804.1774","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"0804.1774","created_at":"2026-07-04T17:10:18Z"},{"alias_kind":"arxiv_version","alias_value":"0804.1774v1","created_at":"2026-07-04T17:10:18Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0804.1774","created_at":"2026-07-04T17:10:18Z"},{"alias_kind":"pith_short_12","alias_value":"WZDLBK245EVN","created_at":"2026-07-04T17:10:18Z"},{"alias_kind":"pith_short_16","alias_value":"WZDLBK245EVNLCNR","created_at":"2026-07-04T17:10:18Z"},{"alias_kind":"pith_short_8","alias_value":"WZDLBK24","created_at":"2026-07-04T17:10:18Z"}],"graph_snapshots":[{"event_id":"sha256:f08e1b8e6184454f35adcd0e280c755e44eef4aaa7ddce54919aa886b74c4172","target":"graph","created_at":"2026-07-04T17:10:18Z","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/0804.1774/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"A recent re-determination of the non-thermal component of the hard X-ray to soft gamma-ray emission from the Galactic ridge, using the SPI instrument on the INTErnational Gamma-Ray Astrophysics Laboratory (INTEGRAL) Observatory, is shown to be well reproduced as inverse-Compton emission from the interstellar medium. Both cosmic-ray primary electrons and secondary electrons and positrons contribute to the emission. The prediction uses the GALPROP model and includes a new calculation of the interstellar radiation field. This may solve a long-standing mystery of the origin of this emission, and p","authors_text":"Andrew W. Strong (MPE), Elena Orlando (MPE), Igor V. Moskalenko (HEPL/Stanford/KIPAC), Laurent Bouchet (CESR-CNRS), Troy A. Porter (SCIPP/UCSC)","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph","submitted_at":"2008-04-10T19:07:13Z","title":"Inverse Compton Origin of the Hard X-Ray and Soft Gamma-Ray Emission from the Galactic Ridge"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0804.1774","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":"sha256:376411737b2884af29c80fed519a1b933fe16a6ee5754a6e18f34f338c8c5dc2","target":"record","created_at":"2026-07-04T17:10:18Z","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":"933233cfce8ab179dad6e1df3a8c80b13a32713bbc3c549b4ca5fc65247d1c62","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph","submitted_at":"2008-04-10T19:07:13Z","title_canon_sha256":"ad40e06a66ff013279d3af6cdaf8424e1a95439d9c17dd27eb40ae8b83061cd4"},"schema_version":"1.0","source":{"id":"0804.1774","kind":"arxiv","version":1}},"canonical_sha256":"b646b0ab5ce92ad589b1d21268716fa34595aacb0c2c895786005c15d6f5ad95","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"b646b0ab5ce92ad589b1d21268716fa34595aacb0c2c895786005c15d6f5ad95","first_computed_at":"2026-07-04T17:10:18.505208Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-04T17:10:18.505208Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"JdBwCGa2pXusEwvARFKPMubUI9uJCHZVoD2KrPYStmC9yQel1tJGRpyvsF6nGIncTWi9pqmAokYVeqSUUbriAw==","signature_status":"signed_v1","signed_at":"2026-07-04T17:10:18.505569Z","signed_message":"canonical_sha256_bytes"},"source_id":"0804.1774","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:376411737b2884af29c80fed519a1b933fe16a6ee5754a6e18f34f338c8c5dc2","sha256:f08e1b8e6184454f35adcd0e280c755e44eef4aaa7ddce54919aa886b74c4172"],"state_sha256":"d80463a82e5d8c85e7e923bd08e06c3ea77fe89aec596d5aeba7787c74deca72"}