{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2013:5VSG662UJQKUB57QCOSI2UPTWH","short_pith_number":"pith:5VSG662U","schema_version":"1.0","canonical_sha256":"ed646f7b544c1540f7f013a48d51f3b1e46b795c914f279f6bda5a3973347432","source":{"kind":"arxiv","id":"1309.7137","version":1},"attestation_state":"computed","paper":{"title":"Time-dependent Modeling of Pulsar Wind Nebulae","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.HE","authors_text":"M.J. Vorster, O. Tibolla, S.E.S. Ferreira, S. Kaufmann","submitted_at":"2013-09-27T07:46:05Z","abstract_excerpt":"A spatially independent model that calculates the time evolution of the electron spectrum in a spherically expanding pulsar wind nebula (PWN) is presented, allowing one to make broadband predictions for the PWN's non-thermal radiation. The source spectrum of electrons injected at the termination shock of the PWN is chosen to be a broken power law. In contrast to previous PWN models of a similar nature, the source spectrum has a discontinuity in intensity at the transition between the low and high-energy components. To test the model, it is applied to the young PWN G21.5--0.9, where it is found"},"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":"1309.7137","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2013-09-27T07:46:05Z","cross_cats_sorted":[],"title_canon_sha256":"9e6c0c2bc9c1df0a10750ac0300646f4563061e2f0294337f51bb4fb1831169b","abstract_canon_sha256":"0bc54b33c56e74a8fb2533a1efe49ecc23f667d8e8e28f178688ba83b1495bea"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T03:12:00.138746Z","signature_b64":"WH5NzsdcGQs7pFYwk3+OhAKyz3Lnritur/qPUpJa2mklRH0EZANeN0E/V6+x1KTfsF6x3Ha1AGBom2CK7zoQDg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"ed646f7b544c1540f7f013a48d51f3b1e46b795c914f279f6bda5a3973347432","last_reissued_at":"2026-05-18T03:12:00.137993Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T03:12:00.137993Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Time-dependent Modeling of Pulsar Wind Nebulae","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.HE","authors_text":"M.J. Vorster, O. Tibolla, S.E.S. Ferreira, S. Kaufmann","submitted_at":"2013-09-27T07:46:05Z","abstract_excerpt":"A spatially independent model that calculates the time evolution of the electron spectrum in a spherically expanding pulsar wind nebula (PWN) is presented, allowing one to make broadband predictions for the PWN's non-thermal radiation. The source spectrum of electrons injected at the termination shock of the PWN is chosen to be a broken power law. In contrast to previous PWN models of a similar nature, the source spectrum has a discontinuity in intensity at the transition between the low and high-energy components. To test the model, it is applied to the young PWN G21.5--0.9, where it is found"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1309.7137","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":"1309.7137","created_at":"2026-05-18T03:12:00.138144+00:00"},{"alias_kind":"arxiv_version","alias_value":"1309.7137v1","created_at":"2026-05-18T03:12:00.138144+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1309.7137","created_at":"2026-05-18T03:12:00.138144+00:00"},{"alias_kind":"pith_short_12","alias_value":"5VSG662UJQKU","created_at":"2026-05-18T12:27:34.582898+00:00"},{"alias_kind":"pith_short_16","alias_value":"5VSG662UJQKUB57Q","created_at":"2026-05-18T12:27:34.582898+00:00"},{"alias_kind":"pith_short_8","alias_value":"5VSG662U","created_at":"2026-05-18T12:27:34.582898+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/5VSG662UJQKUB57QCOSI2UPTWH","json":"https://pith.science/pith/5VSG662UJQKUB57QCOSI2UPTWH.json","graph_json":"https://pith.science/api/pith-number/5VSG662UJQKUB57QCOSI2UPTWH/graph.json","events_json":"https://pith.science/api/pith-number/5VSG662UJQKUB57QCOSI2UPTWH/events.json","paper":"https://pith.science/paper/5VSG662U"},"agent_actions":{"view_html":"https://pith.science/pith/5VSG662UJQKUB57QCOSI2UPTWH","download_json":"https://pith.science/pith/5VSG662UJQKUB57QCOSI2UPTWH.json","view_paper":"https://pith.science/paper/5VSG662U","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1309.7137&json=true","fetch_graph":"https://pith.science/api/pith-number/5VSG662UJQKUB57QCOSI2UPTWH/graph.json","fetch_events":"https://pith.science/api/pith-number/5VSG662UJQKUB57QCOSI2UPTWH/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/5VSG662UJQKUB57QCOSI2UPTWH/action/timestamp_anchor","attest_storage":"https://pith.science/pith/5VSG662UJQKUB57QCOSI2UPTWH/action/storage_attestation","attest_author":"https://pith.science/pith/5VSG662UJQKUB57QCOSI2UPTWH/action/author_attestation","sign_citation":"https://pith.science/pith/5VSG662UJQKUB57QCOSI2UPTWH/action/citation_signature","submit_replication":"https://pith.science/pith/5VSG662UJQKUB57QCOSI2UPTWH/action/replication_record"}},"created_at":"2026-05-18T03:12:00.138144+00:00","updated_at":"2026-05-18T03:12:00.138144+00:00"}