{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2019:WMVPF7QWNGYY7OVVFH73YXG4B4","short_pith_number":"pith:WMVPF7QW","schema_version":"1.0","canonical_sha256":"b32af2fe1669b18fbab529ffbc5cdc0f28b671fb1928109670133d46193cc6ce","source":{"kind":"arxiv","id":"1904.12436","version":1},"attestation_state":"computed","paper":{"title":"NuSTAR observations of the supernova remnant RX J1713.7$-$3946","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.HE","authors_text":"David Berge, Felix Aharonian, Naomi Tsuji, Roman Krivonos, Ryota Higurashi, Takaaki Tanaka, Yasunobu Uchiyama","submitted_at":"2019-04-29T03:34:43Z","abstract_excerpt":"The shock waves of supernova remnants (SNRs) are prominent candidates for the acceleration of the Galactic cosmic rays. SNR RX J1713.7$-$3946 is one well-studied particle accelerator in our Galaxy because of its strong non-thermal X-ray and gamma-ray radiation. We have performed NuSTAR (3-79 keV) observations of the northwest rim of RX J1713.7$-$3946, where is the brightest part in X-ray and the shock speed is about 4000 km s$^{-1}$. The spatially resolved X-ray emission from RX J1713.7$-$3946 is detected up to 20 keV for the first time. The hard X-ray image in 10-20 keV is broadly similar to "},"verification_status":{"content_addressed":true,"pith_receipt":true,"author_attested":false,"weak_author_claims":0,"strong_author_claims":0,"externally_anchored":false,"storage_verified":false,"citation_signatures":0,"replication_records":0,"graph_snapshot":true,"references_resolved":false,"formal_links_present":false},"canonical_record":{"source":{"id":"1904.12436","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2019-04-29T03:34:43Z","cross_cats_sorted":[],"title_canon_sha256":"6334839cf77d456eb9a3b88cec898b22ebb76d1d625914adec47ef8d2b25246d","abstract_canon_sha256":"b90bb46fe50fbf5fc3a33408454e80e3ece8be429036562adbb1d25ec9ca69ef"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-17T23:44:11.098191Z","signature_b64":"CgKgD3jBHdKIOr1fzKxa5MEwt4ehYiFEKrYXkKwUh8ZiDORHLlFxDuED5xxFvmFP5AJbS6Sj3qHy5jrfUgSBDQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"b32af2fe1669b18fbab529ffbc5cdc0f28b671fb1928109670133d46193cc6ce","last_reissued_at":"2026-05-17T23:44:11.097623Z","signature_status":"signed_v1","first_computed_at":"2026-05-17T23:44:11.097623Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"NuSTAR observations of the supernova remnant RX J1713.7$-$3946","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.HE","authors_text":"David Berge, Felix Aharonian, Naomi Tsuji, Roman Krivonos, Ryota Higurashi, Takaaki Tanaka, Yasunobu Uchiyama","submitted_at":"2019-04-29T03:34:43Z","abstract_excerpt":"The shock waves of supernova remnants (SNRs) are prominent candidates for the acceleration of the Galactic cosmic rays. SNR RX J1713.7$-$3946 is one well-studied particle accelerator in our Galaxy because of its strong non-thermal X-ray and gamma-ray radiation. We have performed NuSTAR (3-79 keV) observations of the northwest rim of RX J1713.7$-$3946, where is the brightest part in X-ray and the shock speed is about 4000 km s$^{-1}$. The spatially resolved X-ray emission from RX J1713.7$-$3946 is detected up to 20 keV for the first time. The hard X-ray image in 10-20 keV is broadly similar to "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1904.12436","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":"1904.12436","created_at":"2026-05-17T23:44:11.097725+00:00"},{"alias_kind":"arxiv_version","alias_value":"1904.12436v1","created_at":"2026-05-17T23:44:11.097725+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1904.12436","created_at":"2026-05-17T23:44:11.097725+00:00"},{"alias_kind":"pith_short_12","alias_value":"WMVPF7QWNGYY","created_at":"2026-05-18T12:33:30.264802+00:00"},{"alias_kind":"pith_short_16","alias_value":"WMVPF7QWNGYY7OVV","created_at":"2026-05-18T12:33:30.264802+00:00"},{"alias_kind":"pith_short_8","alias_value":"WMVPF7QW","created_at":"2026-05-18T12:33:30.264802+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/WMVPF7QWNGYY7OVVFH73YXG4B4","json":"https://pith.science/pith/WMVPF7QWNGYY7OVVFH73YXG4B4.json","graph_json":"https://pith.science/api/pith-number/WMVPF7QWNGYY7OVVFH73YXG4B4/graph.json","events_json":"https://pith.science/api/pith-number/WMVPF7QWNGYY7OVVFH73YXG4B4/events.json","paper":"https://pith.science/paper/WMVPF7QW"},"agent_actions":{"view_html":"https://pith.science/pith/WMVPF7QWNGYY7OVVFH73YXG4B4","download_json":"https://pith.science/pith/WMVPF7QWNGYY7OVVFH73YXG4B4.json","view_paper":"https://pith.science/paper/WMVPF7QW","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1904.12436&json=true","fetch_graph":"https://pith.science/api/pith-number/WMVPF7QWNGYY7OVVFH73YXG4B4/graph.json","fetch_events":"https://pith.science/api/pith-number/WMVPF7QWNGYY7OVVFH73YXG4B4/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/WMVPF7QWNGYY7OVVFH73YXG4B4/action/timestamp_anchor","attest_storage":"https://pith.science/pith/WMVPF7QWNGYY7OVVFH73YXG4B4/action/storage_attestation","attest_author":"https://pith.science/pith/WMVPF7QWNGYY7OVVFH73YXG4B4/action/author_attestation","sign_citation":"https://pith.science/pith/WMVPF7QWNGYY7OVVFH73YXG4B4/action/citation_signature","submit_replication":"https://pith.science/pith/WMVPF7QWNGYY7OVVFH73YXG4B4/action/replication_record"}},"created_at":"2026-05-17T23:44:11.097725+00:00","updated_at":"2026-05-17T23:44:11.097725+00:00"}