{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2005:ZJKIN4NJTFCERKCVB2FSXKUYKL","short_pith_number":"pith:ZJKIN4NJ","schema_version":"1.0","canonical_sha256":"ca5486f1a9994448a8550e8b2baa9852d1ddb675b73921af0802b78691ca4fe3","source":{"kind":"arxiv","id":"astro-ph/0509520","version":1},"attestation_state":"computed","paper":{"title":"Three Spectral States of the Disk X-Ray Emission of the Black-Hole Candidate 4U 1630-47","license":"","headline":"","cross_cats":[],"primary_cat":"astro-ph","authors_text":"(2) RIKEN, 3) ((1) Hiroshima Univsersity, (3) Univsersity of Tokyo), Aya Kubota (2), Daisuke Kasama (3), Kazuo Makishima (2, Yasushi Fukazawa (1), Yukiko Abe (1)","submitted_at":"2005-09-18T08:52:00Z","abstract_excerpt":"We studied a time history of X-ray spectral states of a black-hole candidate, 4U 1630-47, utilizing data from a number of monitoring observations with the Rossi X-Ray Timing Explorer over 1996--2004. These observations covered five outbursts of 4U 1630-47, and most of the data recorded typical features of the high/soft states. We found that the spectra in the high/soft states can be further classified into three states. The first spectral state is explained by a concept of the standard accretion disk picture. The second state appears in the so-called very high state, where a dominant hard comp"},"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/0509520","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"astro-ph","submitted_at":"2005-09-18T08:52:00Z","cross_cats_sorted":[],"title_canon_sha256":"9ec5b145280f35443302b9c141ae7b577bc727895ce376a4a3b51b49043a2f0d","abstract_canon_sha256":"ab9d2d173036744d2ac37235db70752f642e85219cac45387acea4ad846f92d6"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:40:33.459161Z","signature_b64":"GH/U4YSZX0eV0cLA9Jr5IUqYv32o+NhQ8QxsU7xMkMcPMmooarDylyT7BYTEcS5FJgTw3dQXLowABtrC9+NqBg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"ca5486f1a9994448a8550e8b2baa9852d1ddb675b73921af0802b78691ca4fe3","last_reissued_at":"2026-05-18T01:40:33.458694Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:40:33.458694Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Three Spectral States of the Disk X-Ray Emission of the Black-Hole Candidate 4U 1630-47","license":"","headline":"","cross_cats":[],"primary_cat":"astro-ph","authors_text":"(2) RIKEN, 3) ((1) Hiroshima Univsersity, (3) Univsersity of Tokyo), Aya Kubota (2), Daisuke Kasama (3), Kazuo Makishima (2, Yasushi Fukazawa (1), Yukiko Abe (1)","submitted_at":"2005-09-18T08:52:00Z","abstract_excerpt":"We studied a time history of X-ray spectral states of a black-hole candidate, 4U 1630-47, utilizing data from a number of monitoring observations with the Rossi X-Ray Timing Explorer over 1996--2004. These observations covered five outbursts of 4U 1630-47, and most of the data recorded typical features of the high/soft states. We found that the spectra in the high/soft states can be further classified into three states. The first spectral state is explained by a concept of the standard accretion disk picture. The second state appears in the so-called very high state, where a dominant hard comp"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"astro-ph/0509520","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":""},"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/0509520","created_at":"2026-05-18T01:40:33.458760+00:00"},{"alias_kind":"arxiv_version","alias_value":"astro-ph/0509520v1","created_at":"2026-05-18T01:40:33.458760+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.astro-ph/0509520","created_at":"2026-05-18T01:40:33.458760+00:00"},{"alias_kind":"pith_short_12","alias_value":"ZJKIN4NJTFCE","created_at":"2026-05-18T12:25:53.939244+00:00"},{"alias_kind":"pith_short_16","alias_value":"ZJKIN4NJTFCERKCV","created_at":"2026-05-18T12:25:53.939244+00:00"},{"alias_kind":"pith_short_8","alias_value":"ZJKIN4NJ","created_at":"2026-05-18T12:25:53.939244+00:00"}],"events":[],"event_summary":{},"paper_claims":[],"inbound_citations":{"count":0,"internal_anchor_count":0,"sample":[]},"formal_canon":{"evidence_count":0,"sample":[],"anchors":[]},"links":{"html":"https://pith.science/pith/ZJKIN4NJTFCERKCVB2FSXKUYKL","json":"https://pith.science/pith/ZJKIN4NJTFCERKCVB2FSXKUYKL.json","graph_json":"https://pith.science/api/pith-number/ZJKIN4NJTFCERKCVB2FSXKUYKL/graph.json","events_json":"https://pith.science/api/pith-number/ZJKIN4NJTFCERKCVB2FSXKUYKL/events.json","paper":"https://pith.science/paper/ZJKIN4NJ"},"agent_actions":{"view_html":"https://pith.science/pith/ZJKIN4NJTFCERKCVB2FSXKUYKL","download_json":"https://pith.science/pith/ZJKIN4NJTFCERKCVB2FSXKUYKL.json","view_paper":"https://pith.science/paper/ZJKIN4NJ","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=astro-ph/0509520&json=true","fetch_graph":"https://pith.science/api/pith-number/ZJKIN4NJTFCERKCVB2FSXKUYKL/graph.json","fetch_events":"https://pith.science/api/pith-number/ZJKIN4NJTFCERKCVB2FSXKUYKL/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/ZJKIN4NJTFCERKCVB2FSXKUYKL/action/timestamp_anchor","attest_storage":"https://pith.science/pith/ZJKIN4NJTFCERKCVB2FSXKUYKL/action/storage_attestation","attest_author":"https://pith.science/pith/ZJKIN4NJTFCERKCVB2FSXKUYKL/action/author_attestation","sign_citation":"https://pith.science/pith/ZJKIN4NJTFCERKCVB2FSXKUYKL/action/citation_signature","submit_replication":"https://pith.science/pith/ZJKIN4NJTFCERKCVB2FSXKUYKL/action/replication_record"}},"created_at":"2026-05-18T01:40:33.458760+00:00","updated_at":"2026-05-18T01:40:33.458760+00:00"}