{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2012:4323IYPLMKOMX33H45NCQYI2R7","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":"aa5b986d688ec4522e7488ef928d8f2c1bf0d718e323a2e6610b5e4ee1f7211e","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2012-04-19T11:40:44Z","title_canon_sha256":"06e319c666bc00a2a8112b19cea1c8a57c40d6b2c689c3b3b491f35cf402852b"},"schema_version":"1.0","source":{"id":"1204.4320","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1204.4320","created_at":"2026-05-18T03:57:27Z"},{"alias_kind":"arxiv_version","alias_value":"1204.4320v1","created_at":"2026-05-18T03:57:27Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1204.4320","created_at":"2026-05-18T03:57:27Z"},{"alias_kind":"pith_short_12","alias_value":"4323IYPLMKOM","created_at":"2026-05-18T12:26:53Z"},{"alias_kind":"pith_short_16","alias_value":"4323IYPLMKOMX33H","created_at":"2026-05-18T12:26:53Z"},{"alias_kind":"pith_short_8","alias_value":"4323IYPL","created_at":"2026-05-18T12:26:53Z"}],"graph_snapshots":[{"event_id":"sha256:c006b9d40f8419bc4b84c668f33cf01fc423d1a0110727c00037ff2b4e283a9f","target":"graph","created_at":"2026-05-18T03:57:27Z","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":"An enhanced concentration of 60Fe was found in a deep ocean's crust in 2004 in a layer corresponding to an age of ~2 Myr. The confirmation of this signal in terrestrial archives as supernova-induced and detection of other supernova-produced radionuclides is of great interest. We have identified two suitable marine sediment cores from the South Australian Basin and estimated the intensity of a possible signal of the supernova-produced radionuclides 26Al, 53Mn, 60Fe and the pure r-process element 244Pu in these cores. A finding of these radionuclides in a sediment core might allow to improve the","authors_text":"Anton Wallner, Dieter Breitschwerdt, Georg Rugel, Gunther Korschinek, Jenny Feige, L. Keith Fifield, Silke Merchel, Stephan R. Winkler","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2012-04-19T11:40:44Z","title":"The Search for Supernova-produced Radionuclides in Terrestrial Deep-sea Archives"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1204.4320","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":"sha256:5bffdc5caba3a8fee391d10541fef1f01a9c1ebd57367dc53b55063814466942","target":"record","created_at":"2026-05-18T03:57:27Z","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":"aa5b986d688ec4522e7488ef928d8f2c1bf0d718e323a2e6610b5e4ee1f7211e","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2012-04-19T11:40:44Z","title_canon_sha256":"06e319c666bc00a2a8112b19cea1c8a57c40d6b2c689c3b3b491f35cf402852b"},"schema_version":"1.0","source":{"id":"1204.4320","kind":"arxiv","version":1}},"canonical_sha256":"e6f5b461eb629ccbef67e75a28611a8ff2db7e7e4fcab1645172992d4a0ddb07","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"e6f5b461eb629ccbef67e75a28611a8ff2db7e7e4fcab1645172992d4a0ddb07","first_computed_at":"2026-05-18T03:57:27.782167Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T03:57:27.782167Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"XuMUG/S2ucxTWeR8W7pah26F0bdqm6LJBFwGzYhftyJvOw6CIcPxR4XJ2A3oEyTIzGN7wh2376qmjfPiV1IcCg==","signature_status":"signed_v1","signed_at":"2026-05-18T03:57:27.782751Z","signed_message":"canonical_sha256_bytes"},"source_id":"1204.4320","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:5bffdc5caba3a8fee391d10541fef1f01a9c1ebd57367dc53b55063814466942","sha256:c006b9d40f8419bc4b84c668f33cf01fc423d1a0110727c00037ff2b4e283a9f"],"state_sha256":"a1fb69df604a490970d831d5a894eb7a7f02485cec7634bf86659b65bb543895"}