{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2014:4MRDRKBAZTL5TBG5E3YLRMSESR","merge_version":"pith-open-graph-merge-v1","event_count":2,"valid_event_count":2,"invalid_event_count":0,"equivocation_count":0,"current":{"canonical_record":{"metadata":{"abstract_canon_sha256":"260d2997fd751b9040c231a5e3afe9f54ec9b5ab1b7d1fd262377286078fa469","cross_cats_sorted":["physics.plasm-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.comp-ph","submitted_at":"2014-07-24T16:12:57Z","title_canon_sha256":"07111da3b04bebc2d88cef14f9b57e3a741feb4c92c4506bfaa991e80564b650"},"schema_version":"1.0","source":{"id":"1407.6635","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1407.6635","created_at":"2026-05-18T02:37:51Z"},{"alias_kind":"arxiv_version","alias_value":"1407.6635v2","created_at":"2026-05-18T02:37:51Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1407.6635","created_at":"2026-05-18T02:37:51Z"},{"alias_kind":"pith_short_12","alias_value":"4MRDRKBAZTL5","created_at":"2026-05-18T12:28:14Z"},{"alias_kind":"pith_short_16","alias_value":"4MRDRKBAZTL5TBG5","created_at":"2026-05-18T12:28:14Z"},{"alias_kind":"pith_short_8","alias_value":"4MRDRKBA","created_at":"2026-05-18T12:28:14Z"}],"graph_snapshots":[{"event_id":"sha256:a6abc29d994bdc3644404e89514c821a6e575bfafb55f6c660ae1756dadfc127","target":"graph","created_at":"2026-05-18T02:37:51Z","signer":{"key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signer_id":"pith.science","signer_type":"pith_registry"},"payload":{"graph_snapshot":{"author_claims":{"count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","strong_count":0},"builder_version":"pith-number-builder-2026-05-17-v1","claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"paper":{"abstract_excerpt":"A procedure for the modeling and analysis of radio communication blackout of hypersonic vehicles is presented. The weakly ionized plasma generated around the surface of a hypersonic reentry vehicle is simulated using full Navier-Stokes equations in multi-species single fluid form. A seven species air chemistry model is used to compute the individual species densities in air including ionization - plasma densities are compared with experiment. The electromagnetic wave's interaction with the plasma layer is modeled using multi-fluid equations for fluid transport and full Maxwell's equations for ","authors_text":"Alexey Shashurin, John Loverich, Kristian Beckwith, Madhusudhan Kundrapu, Michael Keidar, Peter Stoltz","cross_cats":["physics.plasm-ph"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.comp-ph","submitted_at":"2014-07-24T16:12:57Z","title":"Modeling radio communication blackout and blackout mitigation in hypersonic vehicles"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1407.6635","kind":"arxiv","version":2},"verdict":{"created_at":null,"id":null,"model_set":{},"one_line_summary":"","pipeline_version":null,"pith_extraction_headline":"","strongest_claim":"","weakest_assumption":""}},"verdict_id":null}}],"author_attestations":[],"timestamp_anchors":[],"storage_attestations":[],"citation_signatures":[],"replication_records":[],"corrections":[],"mirror_hints":[],"record_created":{"event_id":"sha256:b8d576fafd9ee8b20df9da94a0b58a8408f8ff9ad10224d4a9b5fccef3640184","target":"record","created_at":"2026-05-18T02:37:51Z","signer":{"key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signer_id":"pith.science","signer_type":"pith_registry"},"payload":{"attestation_state":"computed","canonical_record":{"metadata":{"abstract_canon_sha256":"260d2997fd751b9040c231a5e3afe9f54ec9b5ab1b7d1fd262377286078fa469","cross_cats_sorted":["physics.plasm-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.comp-ph","submitted_at":"2014-07-24T16:12:57Z","title_canon_sha256":"07111da3b04bebc2d88cef14f9b57e3a741feb4c92c4506bfaa991e80564b650"},"schema_version":"1.0","source":{"id":"1407.6635","kind":"arxiv","version":2}},"canonical_sha256":"e32238a820ccd7d984dd26f0b8b24494565a363e167f28ef8efc3c5ef95f5ab2","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"e32238a820ccd7d984dd26f0b8b24494565a363e167f28ef8efc3c5ef95f5ab2","first_computed_at":"2026-05-18T02:37:51.601323Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:37:51.601323Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"bexGwm/PFqoi2StbiWmimfkGeAU3Oc4sO6IHsD8d4K4LPImhJziv1rvftQwK1FQ9QXMZaebCFmUqSB3FaJIjDQ==","signature_status":"signed_v1","signed_at":"2026-05-18T02:37:51.601797Z","signed_message":"canonical_sha256_bytes"},"source_id":"1407.6635","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:b8d576fafd9ee8b20df9da94a0b58a8408f8ff9ad10224d4a9b5fccef3640184","sha256:a6abc29d994bdc3644404e89514c821a6e575bfafb55f6c660ae1756dadfc127"],"state_sha256":"edac6db3ec791d8ff15d20e6d6b2df3519a39f8c94ce7c0815c8a71ea877548c"}