{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2004:X4ZHYNTJRSAS6Z2VLXU7VTO3DM","short_pith_number":"pith:X4ZHYNTJ","schema_version":"1.0","canonical_sha256":"bf327c36698c812f67555de9facddb1b3d2a939323f0058df69186378821c3d6","source":{"kind":"arxiv","id":"astro-ph/0408145","version":2},"attestation_state":"computed","paper":{"title":"Very high energy gamma rays from the direction of Sagittarius A*","license":"","headline":"","cross_cats":[],"primary_cat":"astro-ph","authors_text":"et al, H.E.S.S. Collaboration: F. Aharonian","submitted_at":"2004-08-09T08:30:27Z","abstract_excerpt":"We report the detection of a point-like source of very high energy (VHE) gamma-rays coincident within 1' of Sgr A*, obtained with the H.E.S.S. array of Cherenkov telescopes. The gamma-rays exhibit a power-law energy spectrum with a spectral index of -2.2 +/- 0.09 +/- 0.15 and a flux above the 165 GeV threshold of (1.82 +/- 0.22) * 10^-7 m^-2 s^-1. The measured flux and spectrum differ substantially from recent results reported in particular by the CANGAROO collaboration."},"verification_status":{"content_addressed":true,"pith_receipt":true,"author_attested":false,"weak_author_claims":0,"strong_author_claims":0,"externally_anchored":false,"storage_verified":false,"citation_signatures":0,"replication_records":0,"graph_snapshot":true,"references_resolved":false,"formal_links_present":false},"canonical_record":{"source":{"id":"astro-ph/0408145","kind":"arxiv","version":2},"metadata":{"license":"","primary_cat":"astro-ph","submitted_at":"2004-08-09T08:30:27Z","cross_cats_sorted":[],"title_canon_sha256":"fcdfbacae268109f6a52bdf5a81430ca72ae2ede6e637cf16f6b893fd5b8f32c","abstract_canon_sha256":"85d8b0d436de74e15c93d68d0808392d5c5091482da571acb261fbf6f9c3b57f"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T06:25:35.530699Z","signature_b64":"Ibe7bMzJ6F4gRuf2FuoG7lcQrWGni5L7sb8VwLOhBsAbXRG1n0t7Hcj+/D5Ie2xqkLLDwUWXyzGIH8/3YIdFBQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"bf327c36698c812f67555de9facddb1b3d2a939323f0058df69186378821c3d6","last_reissued_at":"2026-07-05T06:25:35.530215Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T06:25:35.530215Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Very high energy gamma rays from the direction of Sagittarius A*","license":"","headline":"","cross_cats":[],"primary_cat":"astro-ph","authors_text":"et al, H.E.S.S. Collaboration: F. Aharonian","submitted_at":"2004-08-09T08:30:27Z","abstract_excerpt":"We report the detection of a point-like source of very high energy (VHE) gamma-rays coincident within 1' of Sgr A*, obtained with the H.E.S.S. array of Cherenkov telescopes. The gamma-rays exhibit a power-law energy spectrum with a spectral index of -2.2 +/- 0.09 +/- 0.15 and a flux above the 165 GeV threshold of (1.82 +/- 0.22) * 10^-7 m^-2 s^-1. The measured flux and spectrum differ substantially from recent results reported in particular by the CANGAROO collaboration."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"astro-ph/0408145","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/astro-ph/0408145/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"},"aliases":[{"alias_kind":"arxiv","alias_value":"astro-ph/0408145","created_at":"2026-07-05T06:25:35.530272+00:00"},{"alias_kind":"arxiv_version","alias_value":"astro-ph/0408145v2","created_at":"2026-07-05T06:25:35.530272+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.astro-ph/0408145","created_at":"2026-07-05T06:25:35.530272+00:00"},{"alias_kind":"pith_short_12","alias_value":"X4ZHYNTJRSAS","created_at":"2026-07-05T06:25:35.530272+00:00"},{"alias_kind":"pith_short_16","alias_value":"X4ZHYNTJRSAS6Z2V","created_at":"2026-07-05T06:25:35.530272+00:00"},{"alias_kind":"pith_short_8","alias_value":"X4ZHYNTJ","created_at":"2026-07-05T06:25:35.530272+00:00"}],"events":[],"event_summary":{},"paper_claims":[],"inbound_citations":{"count":1,"internal_anchor_count":1,"sample":[{"citing_arxiv_id":"1908.06162","citing_title":"The Cherenkov Telescope Array view of the Galactic Center region","ref_index":3,"is_internal_anchor":true}]},"formal_canon":{"evidence_count":0,"sample":[],"anchors":[]},"links":{"html":"https://pith.science/pith/X4ZHYNTJRSAS6Z2VLXU7VTO3DM","json":"https://pith.science/pith/X4ZHYNTJRSAS6Z2VLXU7VTO3DM.json","graph_json":"https://pith.science/api/pith-number/X4ZHYNTJRSAS6Z2VLXU7VTO3DM/graph.json","events_json":"https://pith.science/api/pith-number/X4ZHYNTJRSAS6Z2VLXU7VTO3DM/events.json","paper":"https://pith.science/paper/X4ZHYNTJ"},"agent_actions":{"view_html":"https://pith.science/pith/X4ZHYNTJRSAS6Z2VLXU7VTO3DM","download_json":"https://pith.science/pith/X4ZHYNTJRSAS6Z2VLXU7VTO3DM.json","view_paper":"https://pith.science/paper/X4ZHYNTJ","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=astro-ph/0408145&json=true","fetch_graph":"https://pith.science/api/pith-number/X4ZHYNTJRSAS6Z2VLXU7VTO3DM/graph.json","fetch_events":"https://pith.science/api/pith-number/X4ZHYNTJRSAS6Z2VLXU7VTO3DM/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/X4ZHYNTJRSAS6Z2VLXU7VTO3DM/action/timestamp_anchor","attest_storage":"https://pith.science/pith/X4ZHYNTJRSAS6Z2VLXU7VTO3DM/action/storage_attestation","attest_author":"https://pith.science/pith/X4ZHYNTJRSAS6Z2VLXU7VTO3DM/action/author_attestation","sign_citation":"https://pith.science/pith/X4ZHYNTJRSAS6Z2VLXU7VTO3DM/action/citation_signature","submit_replication":"https://pith.science/pith/X4ZHYNTJRSAS6Z2VLXU7VTO3DM/action/replication_record"}},"created_at":"2026-07-05T06:25:35.530272+00:00","updated_at":"2026-07-05T06:25:35.530272+00:00"}