{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2014:WWFPMYWRR6YZGUCDYYS5HVCO4S","short_pith_number":"pith:WWFPMYWR","schema_version":"1.0","canonical_sha256":"b58af662d18fb1935043c625d3d44ee4a4348ba12dc85cc9cc197dcccb1bceac","source":{"kind":"arxiv","id":"1406.0871","version":1},"attestation_state":"computed","paper":{"title":"A Fourier Transformed Bremsstrahlung Flash Model for the Production of X-Ray Time Lags in Accreting Black Hole Sources","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.HE","authors_text":"John J. Kroon, Peter A. Becker","submitted_at":"2014-06-03T20:40:24Z","abstract_excerpt":"Accreting black hole sources show a wide variety of rapid time variability, including the manifestation of time lags during X-ray transients, in which a delay (phase shift) is observed between the Fourier components of the hard and soft spectra. Despite a large body of observational evidence for time lags, no fundamental physical explanation for the origin of this phenomenon has been presented. We develop a new theoretical model for the production of X-ray time lags based on an exact analytical solution for the Fourier transform describing the diffusion and Comptonization of seed photons propa"},"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":"1406.0871","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2014-06-03T20:40:24Z","cross_cats_sorted":[],"title_canon_sha256":"d34ae8aade53343ca8d2499f75356310889887599511ed4579ac796df962c55d","abstract_canon_sha256":"8bb7863447b40ea46d44467941b5aee31afba24de57b7327502d9d75c1f46bb9"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:43:02.357371Z","signature_b64":"iMfmFE2MIwdR93AlSY7zJ7dMM/7JVCs4wzCHosqnWG4zxpZ59LB023SFTK4lCKiwSZj5eb/4b5UTlJHMKB9NCw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"b58af662d18fb1935043c625d3d44ee4a4348ba12dc85cc9cc197dcccb1bceac","last_reissued_at":"2026-05-18T01:43:02.356996Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:43:02.356996Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"A Fourier Transformed Bremsstrahlung Flash Model for the Production of X-Ray Time Lags in Accreting Black Hole Sources","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.HE","authors_text":"John J. Kroon, Peter A. Becker","submitted_at":"2014-06-03T20:40:24Z","abstract_excerpt":"Accreting black hole sources show a wide variety of rapid time variability, including the manifestation of time lags during X-ray transients, in which a delay (phase shift) is observed between the Fourier components of the hard and soft spectra. Despite a large body of observational evidence for time lags, no fundamental physical explanation for the origin of this phenomenon has been presented. We develop a new theoretical model for the production of X-ray time lags based on an exact analytical solution for the Fourier transform describing the diffusion and Comptonization of seed photons propa"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1406.0871","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":"1406.0871","created_at":"2026-05-18T01:43:02.357060+00:00"},{"alias_kind":"arxiv_version","alias_value":"1406.0871v1","created_at":"2026-05-18T01:43:02.357060+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1406.0871","created_at":"2026-05-18T01:43:02.357060+00:00"},{"alias_kind":"pith_short_12","alias_value":"WWFPMYWRR6YZ","created_at":"2026-05-18T12:28:54.890064+00:00"},{"alias_kind":"pith_short_16","alias_value":"WWFPMYWRR6YZGUCD","created_at":"2026-05-18T12:28:54.890064+00:00"},{"alias_kind":"pith_short_8","alias_value":"WWFPMYWR","created_at":"2026-05-18T12:28:54.890064+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/WWFPMYWRR6YZGUCDYYS5HVCO4S","json":"https://pith.science/pith/WWFPMYWRR6YZGUCDYYS5HVCO4S.json","graph_json":"https://pith.science/api/pith-number/WWFPMYWRR6YZGUCDYYS5HVCO4S/graph.json","events_json":"https://pith.science/api/pith-number/WWFPMYWRR6YZGUCDYYS5HVCO4S/events.json","paper":"https://pith.science/paper/WWFPMYWR"},"agent_actions":{"view_html":"https://pith.science/pith/WWFPMYWRR6YZGUCDYYS5HVCO4S","download_json":"https://pith.science/pith/WWFPMYWRR6YZGUCDYYS5HVCO4S.json","view_paper":"https://pith.science/paper/WWFPMYWR","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1406.0871&json=true","fetch_graph":"https://pith.science/api/pith-number/WWFPMYWRR6YZGUCDYYS5HVCO4S/graph.json","fetch_events":"https://pith.science/api/pith-number/WWFPMYWRR6YZGUCDYYS5HVCO4S/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/WWFPMYWRR6YZGUCDYYS5HVCO4S/action/timestamp_anchor","attest_storage":"https://pith.science/pith/WWFPMYWRR6YZGUCDYYS5HVCO4S/action/storage_attestation","attest_author":"https://pith.science/pith/WWFPMYWRR6YZGUCDYYS5HVCO4S/action/author_attestation","sign_citation":"https://pith.science/pith/WWFPMYWRR6YZGUCDYYS5HVCO4S/action/citation_signature","submit_replication":"https://pith.science/pith/WWFPMYWRR6YZGUCDYYS5HVCO4S/action/replication_record"}},"created_at":"2026-05-18T01:43:02.357060+00:00","updated_at":"2026-05-18T01:43:02.357060+00:00"}