{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2019:PR34WGA6UTOY7EXINFXSNCPLOK","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":"ba5b7b0b0a4eda4d34356b0f32ec4e1326b94727120d6da1c938dc81262013a8","cross_cats_sorted":["astro-ph.SR"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"nucl-ex","submitted_at":"2019-03-08T09:35:21Z","title_canon_sha256":"1f2dd2f875b7c377aa1bfd8a4cbec322fb3770be8b4be97461880be8e6405166"},"schema_version":"1.0","source":{"id":"1903.03339","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1903.03339","created_at":"2026-05-17T23:50:18Z"},{"alias_kind":"arxiv_version","alias_value":"1903.03339v1","created_at":"2026-05-17T23:50:18Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1903.03339","created_at":"2026-05-17T23:50:18Z"},{"alias_kind":"pith_short_12","alias_value":"PR34WGA6UTOY","created_at":"2026-05-18T12:33:24Z"},{"alias_kind":"pith_short_16","alias_value":"PR34WGA6UTOY7EXI","created_at":"2026-05-18T12:33:24Z"},{"alias_kind":"pith_short_8","alias_value":"PR34WGA6","created_at":"2026-05-18T12:33:24Z"}],"graph_snapshots":[{"event_id":"sha256:e7de0882cc4d1b6c48255ba364d7e1c7e8d1caa9a7f07e30eaf0ef0894384db6","target":"graph","created_at":"2026-05-17T23:50:18Z","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":"The primary aim of experimental nuclear astrophysics is to determine the rates of nuclear reactions taking place in stars in various astrophysical conditions. These reaction rates are important ingredient for understanding the elemental abundance distribution in our solar system and the galaxy. The reaction rates are determined from the cross sections which need to be measured at energies as close to the astrophysically relevant ones as possible. In many cases the final nucleus of an astrophysically important reaction is radioactive which allows the cross section to be determined based on the ","authors_text":"A. Wallner, F. K\\\"appeler, G.G. Kiss, Gy. Gy\\\"urky, Zs. F\\\"ul\\\"op","cross_cats":["astro-ph.SR"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"nucl-ex","submitted_at":"2019-03-08T09:35:21Z","title":"The activation method for cross section measurements in nuclear astrophysics"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1903.03339","kind":"arxiv","version":1},"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:f5f60180ea6490e13543b7607328a89383a2f7b389d69942ecde83ffe8cd5a89","target":"record","created_at":"2026-05-17T23:50:18Z","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":"ba5b7b0b0a4eda4d34356b0f32ec4e1326b94727120d6da1c938dc81262013a8","cross_cats_sorted":["astro-ph.SR"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"nucl-ex","submitted_at":"2019-03-08T09:35:21Z","title_canon_sha256":"1f2dd2f875b7c377aa1bfd8a4cbec322fb3770be8b4be97461880be8e6405166"},"schema_version":"1.0","source":{"id":"1903.03339","kind":"arxiv","version":1}},"canonical_sha256":"7c77cb181ea4dd8f92e8696f2689eb728505ca823d56b44aa697fb4ca65afebe","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"7c77cb181ea4dd8f92e8696f2689eb728505ca823d56b44aa697fb4ca65afebe","first_computed_at":"2026-05-17T23:50:18.960242Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-17T23:50:18.960242Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"Y9vWZZgoeuhjH0J6jtSXSYFVbeT6qfuy74m40edF69lTMRGVE2ohELrH9pbDcTo3po6ceVw+Fc9LWJVGHrW7CA==","signature_status":"signed_v1","signed_at":"2026-05-17T23:50:18.960895Z","signed_message":"canonical_sha256_bytes"},"source_id":"1903.03339","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:f5f60180ea6490e13543b7607328a89383a2f7b389d69942ecde83ffe8cd5a89","sha256:e7de0882cc4d1b6c48255ba364d7e1c7e8d1caa9a7f07e30eaf0ef0894384db6"],"state_sha256":"3026f6b72f3a5c70d02d35b55575526ef0041104fffbcb6b8e17edde53cca854"}