{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2017:2UQKPGXCZVLO6M4DQ3WHG6O7KX","short_pith_number":"pith:2UQKPGXC","schema_version":"1.0","canonical_sha256":"d520a79ae2cd56ef338386ec7379df55cc856190733a9d6a43be8f7c3c6d414f","source":{"kind":"arxiv","id":"1710.06992","version":2},"attestation_state":"computed","paper":{"title":"X-ray Measurements of the Particle Acceleration Properties at Inward Shocks in Cassiopeia A","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.HE","authors_text":"Aya Bamba, Federico Fraschetti, John P. Hughes, Manabu Ishida, Mikio Morii, Satoru Katsuda, Toshiki Sato, Yoshitomo Maeda","submitted_at":"2017-10-19T02:50:12Z","abstract_excerpt":"We present new evidence that the bright non-thermal X-ray emission features in the interior of the Cassiopeia A supernova remnant (SNR) are caused by inward moving shocks based on Chandra and NuSTAR observations. Several bright inward-moving filaments were identified using monitoring data taken by Chandra in 2000-2014. These inward-moving shock locations are nearly coincident with hard X-ray (15-40 keV) hot spots seen by NuSTAR. From proper motion measurements, the transverse velocities were estimated to be in the range $\\sim$2,100-3,800 km s$^{-1}$ for a distance of 3.4 kpc. The shock velocit"},"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":"1710.06992","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2017-10-19T02:50:12Z","cross_cats_sorted":[],"title_canon_sha256":"1592beb8e4e98b483137dfc915cc9b33e88a2b3153dde156a495a6f2a1c7f9dc","abstract_canon_sha256":"7217b406721072b28abffe2d2f27cb564f25fffce050750d572de1e1e0467625"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:24:15.724059Z","signature_b64":"BWUWhVP5crxMP4f86+6tf4yDQExjGBKFdLrFy1UV/yved1QOtJBuZ8A+FBdN8+OdMVUMdbfVFKtIQ2t09PNkAA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"d520a79ae2cd56ef338386ec7379df55cc856190733a9d6a43be8f7c3c6d414f","last_reissued_at":"2026-05-18T00:24:15.723597Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:24:15.723597Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"X-ray Measurements of the Particle Acceleration Properties at Inward Shocks in Cassiopeia A","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.HE","authors_text":"Aya Bamba, Federico Fraschetti, John P. Hughes, Manabu Ishida, Mikio Morii, Satoru Katsuda, Toshiki Sato, Yoshitomo Maeda","submitted_at":"2017-10-19T02:50:12Z","abstract_excerpt":"We present new evidence that the bright non-thermal X-ray emission features in the interior of the Cassiopeia A supernova remnant (SNR) are caused by inward moving shocks based on Chandra and NuSTAR observations. Several bright inward-moving filaments were identified using monitoring data taken by Chandra in 2000-2014. These inward-moving shock locations are nearly coincident with hard X-ray (15-40 keV) hot spots seen by NuSTAR. From proper motion measurements, the transverse velocities were estimated to be in the range $\\sim$2,100-3,800 km s$^{-1}$ for a distance of 3.4 kpc. The shock velocit"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1710.06992","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":"1710.06992","created_at":"2026-05-18T00:24:15.723672+00:00"},{"alias_kind":"arxiv_version","alias_value":"1710.06992v2","created_at":"2026-05-18T00:24:15.723672+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1710.06992","created_at":"2026-05-18T00:24:15.723672+00:00"},{"alias_kind":"pith_short_12","alias_value":"2UQKPGXCZVLO","created_at":"2026-05-18T12:30:55.937587+00:00"},{"alias_kind":"pith_short_16","alias_value":"2UQKPGXCZVLO6M4D","created_at":"2026-05-18T12:30:55.937587+00:00"},{"alias_kind":"pith_short_8","alias_value":"2UQKPGXC","created_at":"2026-05-18T12:30:55.937587+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/2UQKPGXCZVLO6M4DQ3WHG6O7KX","json":"https://pith.science/pith/2UQKPGXCZVLO6M4DQ3WHG6O7KX.json","graph_json":"https://pith.science/api/pith-number/2UQKPGXCZVLO6M4DQ3WHG6O7KX/graph.json","events_json":"https://pith.science/api/pith-number/2UQKPGXCZVLO6M4DQ3WHG6O7KX/events.json","paper":"https://pith.science/paper/2UQKPGXC"},"agent_actions":{"view_html":"https://pith.science/pith/2UQKPGXCZVLO6M4DQ3WHG6O7KX","download_json":"https://pith.science/pith/2UQKPGXCZVLO6M4DQ3WHG6O7KX.json","view_paper":"https://pith.science/paper/2UQKPGXC","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1710.06992&json=true","fetch_graph":"https://pith.science/api/pith-number/2UQKPGXCZVLO6M4DQ3WHG6O7KX/graph.json","fetch_events":"https://pith.science/api/pith-number/2UQKPGXCZVLO6M4DQ3WHG6O7KX/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/2UQKPGXCZVLO6M4DQ3WHG6O7KX/action/timestamp_anchor","attest_storage":"https://pith.science/pith/2UQKPGXCZVLO6M4DQ3WHG6O7KX/action/storage_attestation","attest_author":"https://pith.science/pith/2UQKPGXCZVLO6M4DQ3WHG6O7KX/action/author_attestation","sign_citation":"https://pith.science/pith/2UQKPGXCZVLO6M4DQ3WHG6O7KX/action/citation_signature","submit_replication":"https://pith.science/pith/2UQKPGXCZVLO6M4DQ3WHG6O7KX/action/replication_record"}},"created_at":"2026-05-18T00:24:15.723672+00:00","updated_at":"2026-05-18T00:24:15.723672+00:00"}