{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2010:RB442NH2J3VYEXOGZHTDQR5L64","short_pith_number":"pith:RB442NH2","schema_version":"1.0","canonical_sha256":"8879cd34fa4eeb825dc6c9e63847abf71bc8b3af0598a22610851fa8269aa317","source":{"kind":"arxiv","id":"1010.2498","version":1},"attestation_state":"computed","paper":{"title":"Turbulence and magnetic spots at the surface of hot massive stars","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["physics.flu-dyn"],"primary_cat":"astro-ph.SR","authors_text":"Axel Brandenburg, Fabio Del Sordo, Jonathan Braithwaite, Matteo Cantiello, Norbert Langer, Petri K\\\"apyl\\\"a","submitted_at":"2010-10-12T20:01:33Z","abstract_excerpt":"Hot luminous stars show a variety of phenomena in their photospheres and in their winds which still lack clear physical explanations at this time. Among these phenomena are non-thermal line broadening, line profile variability (LPVs), discrete absorption components (DACs), wind clumping and stochastically excited pulsations. Cantiello et al. (2009) argued that a convection zone close to the surface of hot, massive stars, could be responsible for some of these phenomena. This convective zone is caused by a peak in the opacity due to iron recombination and for this reason is referred as the \"iro"},"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":"1010.2498","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2010-10-12T20:01:33Z","cross_cats_sorted":["physics.flu-dyn"],"title_canon_sha256":"a982003d0d6a5428f0fe2e47cfb4b52a58a55822989409869328c5487c2db0ca","abstract_canon_sha256":"4f3f2bd0cc8c7e37323750687fb64e7ab7c6321b2caea0923101ce1fe262625c"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T03:58:26.606938Z","signature_b64":"blw4ONLoWg57rUETtdyY5wp8b2NAERifSaQnFnpZYU+U7UZpYMRFwTe31Aje4JsDgQjKBDZ6SujRbW8rln/ACA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"8879cd34fa4eeb825dc6c9e63847abf71bc8b3af0598a22610851fa8269aa317","last_reissued_at":"2026-05-18T03:58:26.606205Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T03:58:26.606205Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Turbulence and magnetic spots at the surface of hot massive stars","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["physics.flu-dyn"],"primary_cat":"astro-ph.SR","authors_text":"Axel Brandenburg, Fabio Del Sordo, Jonathan Braithwaite, Matteo Cantiello, Norbert Langer, Petri K\\\"apyl\\\"a","submitted_at":"2010-10-12T20:01:33Z","abstract_excerpt":"Hot luminous stars show a variety of phenomena in their photospheres and in their winds which still lack clear physical explanations at this time. Among these phenomena are non-thermal line broadening, line profile variability (LPVs), discrete absorption components (DACs), wind clumping and stochastically excited pulsations. Cantiello et al. (2009) argued that a convection zone close to the surface of hot, massive stars, could be responsible for some of these phenomena. This convective zone is caused by a peak in the opacity due to iron recombination and for this reason is referred as the \"iro"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1010.2498","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":"1010.2498","created_at":"2026-05-18T03:58:26.606342+00:00"},{"alias_kind":"arxiv_version","alias_value":"1010.2498v1","created_at":"2026-05-18T03:58:26.606342+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1010.2498","created_at":"2026-05-18T03:58:26.606342+00:00"},{"alias_kind":"pith_short_12","alias_value":"RB442NH2J3VY","created_at":"2026-05-18T12:26:13.927090+00:00"},{"alias_kind":"pith_short_16","alias_value":"RB442NH2J3VYEXOG","created_at":"2026-05-18T12:26:13.927090+00:00"},{"alias_kind":"pith_short_8","alias_value":"RB442NH2","created_at":"2026-05-18T12:26:13.927090+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/RB442NH2J3VYEXOGZHTDQR5L64","json":"https://pith.science/pith/RB442NH2J3VYEXOGZHTDQR5L64.json","graph_json":"https://pith.science/api/pith-number/RB442NH2J3VYEXOGZHTDQR5L64/graph.json","events_json":"https://pith.science/api/pith-number/RB442NH2J3VYEXOGZHTDQR5L64/events.json","paper":"https://pith.science/paper/RB442NH2"},"agent_actions":{"view_html":"https://pith.science/pith/RB442NH2J3VYEXOGZHTDQR5L64","download_json":"https://pith.science/pith/RB442NH2J3VYEXOGZHTDQR5L64.json","view_paper":"https://pith.science/paper/RB442NH2","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1010.2498&json=true","fetch_graph":"https://pith.science/api/pith-number/RB442NH2J3VYEXOGZHTDQR5L64/graph.json","fetch_events":"https://pith.science/api/pith-number/RB442NH2J3VYEXOGZHTDQR5L64/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/RB442NH2J3VYEXOGZHTDQR5L64/action/timestamp_anchor","attest_storage":"https://pith.science/pith/RB442NH2J3VYEXOGZHTDQR5L64/action/storage_attestation","attest_author":"https://pith.science/pith/RB442NH2J3VYEXOGZHTDQR5L64/action/author_attestation","sign_citation":"https://pith.science/pith/RB442NH2J3VYEXOGZHTDQR5L64/action/citation_signature","submit_replication":"https://pith.science/pith/RB442NH2J3VYEXOGZHTDQR5L64/action/replication_record"}},"created_at":"2026-05-18T03:58:26.606342+00:00","updated_at":"2026-05-18T03:58:26.606342+00:00"}