{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2019:YCVAIDV4TF5YPANW33CP4EWDHU","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":"9bf49f09572c989f032e70b93ac7864cb4ea5bdb96c9817f7f776c1a2660c710","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2019-08-05T15:48:37Z","title_canon_sha256":"556919cb02d840ad752ff144602fae4ee184808a812750c30fdea209d2a66306"},"schema_version":"1.0","source":{"id":"1908.01700","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1908.01700","created_at":"2026-07-05T00:31:54Z"},{"alias_kind":"arxiv_version","alias_value":"1908.01700v2","created_at":"2026-07-05T00:31:54Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1908.01700","created_at":"2026-07-05T00:31:54Z"},{"alias_kind":"pith_short_12","alias_value":"YCVAIDV4TF5Y","created_at":"2026-07-05T00:31:54Z"},{"alias_kind":"pith_short_16","alias_value":"YCVAIDV4TF5YPANW","created_at":"2026-07-05T00:31:54Z"},{"alias_kind":"pith_short_8","alias_value":"YCVAIDV4","created_at":"2026-07-05T00:31:54Z"}],"graph_snapshots":[{"event_id":"sha256:778baa045d8c81f5252a8b61612778ee8efa3d37a8ee94fa59178701aac0a9d4","target":"graph","created_at":"2026-07-05T00:31:54Z","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"},"integrity":{"available":true,"clean":true,"detectors_run":[],"endpoint":"/pith/1908.01700/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We present one-dimensional hydrodynamical simulations including radiative losses, of internal shocks in the outflows from classical novae, to explore the role of shocks in powering multi-wavelength emission from radio to gamma-ray wavelengths. Observations support a picture in which the initial phases of some novae generate a slow, equatorially-focused outflow (directly from the outer Lagrange point, or from a circumbinary disk), which then transitions to, or is overtaken by, a faster more isotropic outflow from the white dwarf which collides and shocks the slower flow, powering gamma-ray and ","authors_text":"Brian D. Metzger, Elad Steinberg","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2019-08-05T15:48:37Z","title":"Internal Shocks from Variable Outflows in Classical Novae"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1908.01700","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":"sha256:6e2127633dc4a752606e263ff971bc1cffcd0553703ae2a276676b3a7a852fb0","target":"record","created_at":"2026-07-05T00:31:54Z","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":"9bf49f09572c989f032e70b93ac7864cb4ea5bdb96c9817f7f776c1a2660c710","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2019-08-05T15:48:37Z","title_canon_sha256":"556919cb02d840ad752ff144602fae4ee184808a812750c30fdea209d2a66306"},"schema_version":"1.0","source":{"id":"1908.01700","kind":"arxiv","version":2}},"canonical_sha256":"c0aa040ebc997b8781b6dec4fe12c33d37fea22eef5ba76d0d1befcadc412552","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"c0aa040ebc997b8781b6dec4fe12c33d37fea22eef5ba76d0d1befcadc412552","first_computed_at":"2026-07-05T00:31:54.860176Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T00:31:54.860176Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"6+9fdmX5GaVjvg52/x2ZTFiUbQv3aH4tnQQN9/l8P8nb08SOpgDeFF4DRfWA72RT8c1aI8NoZTzDtmp1ml+WDA==","signature_status":"signed_v1","signed_at":"2026-07-05T00:31:54.860769Z","signed_message":"canonical_sha256_bytes"},"source_id":"1908.01700","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:6e2127633dc4a752606e263ff971bc1cffcd0553703ae2a276676b3a7a852fb0","sha256:778baa045d8c81f5252a8b61612778ee8efa3d37a8ee94fa59178701aac0a9d4"],"state_sha256":"98bfe815090d74995401cf2a2f4573ca49ef9dc7c55b6caca986ad10ebff4923"}