{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2008:N3PZGNOLG74K5EEG4DMAI2BT35","short_pith_number":"pith:N3PZGNOL","schema_version":"1.0","canonical_sha256":"6edf9335cb37f8ae9086e0d8046833df60e31da437155d2dc5c07ba36a087f8d","source":{"kind":"arxiv","id":"0809.0278","version":2},"attestation_state":"computed","paper":{"title":"Theoretical modeling of propagation of magneto-acoustic waves in magnetic regions below sunspots","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph","authors_text":"A. Kosovichev, E. Khomenko, K. Parchevsky, M. Collados, V. Olshevsky","submitted_at":"2008-09-01T16:35:26Z","abstract_excerpt":"We use 2D numerical simulations and eikonal approximation, to study properties of MHD waves traveling below the solar surface through the magnetic structure of sunspots. We consider a series of magnetostatic models of sunspots of different magnetic field strengths, from 10 Mm below the photosphere to the low chromosphere. The purpose of these studies is to quantify the effect of the magnetic field on local helioseismology measurements by modeling waves excited by sub-photospheric sources. Time-distance propagation diagrams and wave travel times are calculated for models of various field streng"},"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":"0809.0278","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph","submitted_at":"2008-09-01T16:35:26Z","cross_cats_sorted":[],"title_canon_sha256":"b88f970a6dcb98d64335efbf4e9c9f0807ca55809dbbd2885d7285fc55da013b","abstract_canon_sha256":"d8f9341cbb327511196811550c1b5ebe74efc550895b9f81a7f441ccbd155472"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T04:29:32.923600Z","signature_b64":"JzfSaq3AGK9lMn/OcCfqmNYCmuj5Ahp4ECfj1yfufQEMYF7dBOOzJlGuBOnVl6CkYqFVjDYZYenykmUwCnGhBA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"6edf9335cb37f8ae9086e0d8046833df60e31da437155d2dc5c07ba36a087f8d","last_reissued_at":"2026-05-18T04:29:32.923220Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T04:29:32.923220Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Theoretical modeling of propagation of magneto-acoustic waves in magnetic regions below sunspots","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph","authors_text":"A. Kosovichev, E. Khomenko, K. Parchevsky, M. Collados, V. Olshevsky","submitted_at":"2008-09-01T16:35:26Z","abstract_excerpt":"We use 2D numerical simulations and eikonal approximation, to study properties of MHD waves traveling below the solar surface through the magnetic structure of sunspots. We consider a series of magnetostatic models of sunspots of different magnetic field strengths, from 10 Mm below the photosphere to the low chromosphere. The purpose of these studies is to quantify the effect of the magnetic field on local helioseismology measurements by modeling waves excited by sub-photospheric sources. Time-distance propagation diagrams and wave travel times are calculated for models of various field streng"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0809.0278","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":""},"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":"0809.0278","created_at":"2026-05-18T04:29:32.923276+00:00"},{"alias_kind":"arxiv_version","alias_value":"0809.0278v2","created_at":"2026-05-18T04:29:32.923276+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0809.0278","created_at":"2026-05-18T04:29:32.923276+00:00"},{"alias_kind":"pith_short_12","alias_value":"N3PZGNOLG74K","created_at":"2026-05-18T12:25:57.157939+00:00"},{"alias_kind":"pith_short_16","alias_value":"N3PZGNOLG74K5EEG","created_at":"2026-05-18T12:25:57.157939+00:00"},{"alias_kind":"pith_short_8","alias_value":"N3PZGNOL","created_at":"2026-05-18T12:25:57.157939+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/N3PZGNOLG74K5EEG4DMAI2BT35","json":"https://pith.science/pith/N3PZGNOLG74K5EEG4DMAI2BT35.json","graph_json":"https://pith.science/api/pith-number/N3PZGNOLG74K5EEG4DMAI2BT35/graph.json","events_json":"https://pith.science/api/pith-number/N3PZGNOLG74K5EEG4DMAI2BT35/events.json","paper":"https://pith.science/paper/N3PZGNOL"},"agent_actions":{"view_html":"https://pith.science/pith/N3PZGNOLG74K5EEG4DMAI2BT35","download_json":"https://pith.science/pith/N3PZGNOLG74K5EEG4DMAI2BT35.json","view_paper":"https://pith.science/paper/N3PZGNOL","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=0809.0278&json=true","fetch_graph":"https://pith.science/api/pith-number/N3PZGNOLG74K5EEG4DMAI2BT35/graph.json","fetch_events":"https://pith.science/api/pith-number/N3PZGNOLG74K5EEG4DMAI2BT35/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/N3PZGNOLG74K5EEG4DMAI2BT35/action/timestamp_anchor","attest_storage":"https://pith.science/pith/N3PZGNOLG74K5EEG4DMAI2BT35/action/storage_attestation","attest_author":"https://pith.science/pith/N3PZGNOLG74K5EEG4DMAI2BT35/action/author_attestation","sign_citation":"https://pith.science/pith/N3PZGNOLG74K5EEG4DMAI2BT35/action/citation_signature","submit_replication":"https://pith.science/pith/N3PZGNOLG74K5EEG4DMAI2BT35/action/replication_record"}},"created_at":"2026-05-18T04:29:32.923276+00:00","updated_at":"2026-05-18T04:29:32.923276+00:00"}