{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2022:W2WHF4GMLKVEINUIAIG3LLMTW3","short_pith_number":"pith:W2WHF4GM","schema_version":"1.0","canonical_sha256":"b6ac72f0cc5aaa443688020db5ad93b6c995bcb3bd05a2627f6cad21dca01da4","source":{"kind":"arxiv","id":"2204.14139","version":2},"attestation_state":"computed","paper":{"title":"A study of natural frequencies in a dynamic corona-disk system","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.HE","authors_text":"A. Mastichiadis, M. Petropoulou, N. D. Kylafis","submitted_at":"2022-04-29T14:55:08Z","abstract_excerpt":"Black-hole X-ray binaries (BHXRBs) in the hard and hard-intermediate spectral (and temporal) states exhibit in their power spectra characteristic frequencies called type-C quasi-periodic oscillations (QPOs). Various models that can explain them with various degrees of success have been proposed, but a definitive answer is still missing. The hot Comptonizing corona interacting with the cold accretion disk, both of which are central in understanding BHXRBs, is essentially a dynamical system. Our aim is to investigate if the radiative coupling between the two components can produce QPOs. We write"},"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":"2204.14139","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2022-04-29T14:55:08Z","cross_cats_sorted":[],"title_canon_sha256":"0f438310ce4b2df59ed65e4f863443ec824be4db05a9782b5d4b7ddd7259b486","abstract_canon_sha256":"87e3bde29569bb3c22a83bfdc28b7a5ae1f982dfc0482f22fde700afea5ae139"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T04:35:47.933043Z","signature_b64":"kTlZ1zDt1R/NxkpD5MK/g8KGYVNx/x/pkPtTzzLORy6zQZaUUtJtwcWihxYvvlQYvm6UPE3B9AavZQaKUJ/ABw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"b6ac72f0cc5aaa443688020db5ad93b6c995bcb3bd05a2627f6cad21dca01da4","last_reissued_at":"2026-07-05T04:35:47.932666Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T04:35:47.932666Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"A study of natural frequencies in a dynamic corona-disk system","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.HE","authors_text":"A. Mastichiadis, M. Petropoulou, N. D. Kylafis","submitted_at":"2022-04-29T14:55:08Z","abstract_excerpt":"Black-hole X-ray binaries (BHXRBs) in the hard and hard-intermediate spectral (and temporal) states exhibit in their power spectra characteristic frequencies called type-C quasi-periodic oscillations (QPOs). Various models that can explain them with various degrees of success have been proposed, but a definitive answer is still missing. The hot Comptonizing corona interacting with the cold accretion disk, both of which are central in understanding BHXRBs, is essentially a dynamical system. Our aim is to investigate if the radiative coupling between the two components can produce QPOs. We write"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2204.14139","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/2204.14139/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":"2204.14139","created_at":"2026-07-05T04:35:47.932721+00:00"},{"alias_kind":"arxiv_version","alias_value":"2204.14139v2","created_at":"2026-07-05T04:35:47.932721+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2204.14139","created_at":"2026-07-05T04:35:47.932721+00:00"},{"alias_kind":"pith_short_12","alias_value":"W2WHF4GMLKVE","created_at":"2026-07-05T04:35:47.932721+00:00"},{"alias_kind":"pith_short_16","alias_value":"W2WHF4GMLKVEINUI","created_at":"2026-07-05T04:35:47.932721+00:00"},{"alias_kind":"pith_short_8","alias_value":"W2WHF4GM","created_at":"2026-07-05T04:35:47.932721+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/W2WHF4GMLKVEINUIAIG3LLMTW3","json":"https://pith.science/pith/W2WHF4GMLKVEINUIAIG3LLMTW3.json","graph_json":"https://pith.science/api/pith-number/W2WHF4GMLKVEINUIAIG3LLMTW3/graph.json","events_json":"https://pith.science/api/pith-number/W2WHF4GMLKVEINUIAIG3LLMTW3/events.json","paper":"https://pith.science/paper/W2WHF4GM"},"agent_actions":{"view_html":"https://pith.science/pith/W2WHF4GMLKVEINUIAIG3LLMTW3","download_json":"https://pith.science/pith/W2WHF4GMLKVEINUIAIG3LLMTW3.json","view_paper":"https://pith.science/paper/W2WHF4GM","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=2204.14139&json=true","fetch_graph":"https://pith.science/api/pith-number/W2WHF4GMLKVEINUIAIG3LLMTW3/graph.json","fetch_events":"https://pith.science/api/pith-number/W2WHF4GMLKVEINUIAIG3LLMTW3/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/W2WHF4GMLKVEINUIAIG3LLMTW3/action/timestamp_anchor","attest_storage":"https://pith.science/pith/W2WHF4GMLKVEINUIAIG3LLMTW3/action/storage_attestation","attest_author":"https://pith.science/pith/W2WHF4GMLKVEINUIAIG3LLMTW3/action/author_attestation","sign_citation":"https://pith.science/pith/W2WHF4GMLKVEINUIAIG3LLMTW3/action/citation_signature","submit_replication":"https://pith.science/pith/W2WHF4GMLKVEINUIAIG3LLMTW3/action/replication_record"}},"created_at":"2026-07-05T04:35:47.932721+00:00","updated_at":"2026-07-05T04:35:47.932721+00:00"}