{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2014:XSJTQZHNAZ3GIXDVUWMBQMQEK6","short_pith_number":"pith:XSJTQZHN","canonical_record":{"source":{"id":"1405.4310","kind":"arxiv","version":3},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2014-05-16T21:22:37Z","cross_cats_sorted":["astro-ph.EP","hep-ph","physics.geo-ph"],"title_canon_sha256":"c13f3bc75a04866cf07ccc84dd6183aa8a63836efa0fd6b7cf7843fde1e7c715","abstract_canon_sha256":"6d92e973fd7780b93e6fa5be1d803bc022402ee7fe8d5ff45eacbd9f00bd6ef4"},"schema_version":"1.0"},"canonical_sha256":"bc933864ed0676645c75a59818320457ad5b764bf86214f1a94460188fc8a82d","source":{"kind":"arxiv","id":"1405.4310","version":3},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1405.4310","created_at":"2026-05-18T01:43:11Z"},{"alias_kind":"arxiv_version","alias_value":"1405.4310v3","created_at":"2026-05-18T01:43:11Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1405.4310","created_at":"2026-05-18T01:43:11Z"},{"alias_kind":"pith_short_12","alias_value":"XSJTQZHNAZ3G","created_at":"2026-05-18T12:28:57Z"},{"alias_kind":"pith_short_16","alias_value":"XSJTQZHNAZ3GIXDV","created_at":"2026-05-18T12:28:57Z"},{"alias_kind":"pith_short_8","alias_value":"XSJTQZHN","created_at":"2026-05-18T12:28:57Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2014:XSJTQZHNAZ3GIXDVUWMBQMQEK6","target":"record","payload":{"canonical_record":{"source":{"id":"1405.4310","kind":"arxiv","version":3},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2014-05-16T21:22:37Z","cross_cats_sorted":["astro-ph.EP","hep-ph","physics.geo-ph"],"title_canon_sha256":"c13f3bc75a04866cf07ccc84dd6183aa8a63836efa0fd6b7cf7843fde1e7c715","abstract_canon_sha256":"6d92e973fd7780b93e6fa5be1d803bc022402ee7fe8d5ff45eacbd9f00bd6ef4"},"schema_version":"1.0"},"canonical_sha256":"bc933864ed0676645c75a59818320457ad5b764bf86214f1a94460188fc8a82d","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:43:11.498494Z","signature_b64":"7Fd5J/m19WDTZl0L9a0O+U8DoZKKEGO5Koa/4PTNNciT/O1ZDtP4HH1Oixa6Op+5UytjLoyQsH7QbpIJjOhwDw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"bc933864ed0676645c75a59818320457ad5b764bf86214f1a94460188fc8a82d","last_reissued_at":"2026-05-18T01:43:11.497888Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:43:11.497888Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1405.4310","source_version":3,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T01:43:11Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"00NGlt0ZaTHckPpRLX7A8O7UrS5o66kZoh9mkI+8kxpNooMju0UD0ptrsY1byxMVO31T1iFWjCp4vbR4m/46BA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-04T17:20:06.063712Z"},"content_sha256":"d2674486f21d53dcc2bed395f335d2eb3cbe97463a433aa3880a3f1bd0aace9c","schema_version":"1.0","event_id":"sha256:d2674486f21d53dcc2bed395f335d2eb3cbe97463a433aa3880a3f1bd0aace9c"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2014:XSJTQZHNAZ3GIXDVUWMBQMQEK6","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Astrophysical Shrapnel: Discriminating Among Near-Earth Stellar Explosion Sources of Live Radioactive Isotopes","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.EP","hep-ph","physics.geo-ph"],"primary_cat":"astro-ph.SR","authors_text":"Brian D. Fields, Brian J. Fry, John R. Ellis","submitted_at":"2014-05-16T21:22:37Z","abstract_excerpt":"We consider the production and deposition on Earth of isotopes with half-lives in the range 10$^{5}$ to 10$^{8}$ years that might provide signatures of nearby stellar explosions, extending previous analyses of Core-Collapse Supernovae (CCSNe) to include Electron-Capture Supernovae (ECSNe), Super-Asymptotic Giant Branch (SAGBs) stars, Thermonuclear/Type Ia Supernovae (TNSNe), and Kilonovae/Neutron Star Mergers (KNe). We revisit previous estimates of the $^{60}$Fe and $^{26}$Al signatures, and extend these estimates to include $^{244}$Pu and $^{53}$Mn. We discuss interpretations of the $^{60}$Fe"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1405.4310","kind":"arxiv","version":3},"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"},"verdict_id":null},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T01:43:11Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"AvgSL/Q3DJ+uorEpj7ErXNWJroH1e8STgvcJNNKgfxI2W2hax3wZedm+brA9kUtZSu0YOfUmfjNxrZpp9Rm7Aw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-04T17:20:06.064258Z"},"content_sha256":"f2a4994213056e01a01ce6974460838bb2f2f83dbe36d2f1e4e2f2b8a00caa89","schema_version":"1.0","event_id":"sha256:f2a4994213056e01a01ce6974460838bb2f2f83dbe36d2f1e4e2f2b8a00caa89"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/XSJTQZHNAZ3GIXDVUWMBQMQEK6/bundle.json","state_url":"https://pith.science/pith/XSJTQZHNAZ3GIXDVUWMBQMQEK6/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/XSJTQZHNAZ3GIXDVUWMBQMQEK6/bundle.json","status":"primary"}],"public_keys":[{"key_id":"pith-v1-2026-05","algorithm":"ed25519","format":"raw","public_key_b64":"stVStoiQhXFxp4s2pdzPNoqVNBMojDU/fJ2db5S3CbM=","public_key_hex":"b2d552b68890857171a78b36a5dccf368a953413288c353f7c9d9d6f94b709b3","fingerprint_sha256_b32_first128bits":"RVFV5Z2OI2J3ZUO7ERDEBCYNKS","fingerprint_sha256_hex":"8d4b5ee74e4693bcd1df2446408b0d54","rotates_at":null,"url":"https://pith.science/pith-signing-key.json","notes":"Pith uses this Ed25519 key to sign canonical record SHA-256 digests. Verify with: ed25519_verify(public_key, message=canonical_sha256_bytes, signature=base64decode(signature_b64))."}],"merge_version":"pith-open-graph-merge-v1","built_at":"2026-06-04T17:20:06Z","links":{"resolver":"https://pith.science/pith/XSJTQZHNAZ3GIXDVUWMBQMQEK6","bundle":"https://pith.science/pith/XSJTQZHNAZ3GIXDVUWMBQMQEK6/bundle.json","state":"https://pith.science/pith/XSJTQZHNAZ3GIXDVUWMBQMQEK6/state.json","well_known_bundle":"https://pith.science/.well-known/pith/XSJTQZHNAZ3GIXDVUWMBQMQEK6/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2014:XSJTQZHNAZ3GIXDVUWMBQMQEK6","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":"6d92e973fd7780b93e6fa5be1d803bc022402ee7fe8d5ff45eacbd9f00bd6ef4","cross_cats_sorted":["astro-ph.EP","hep-ph","physics.geo-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2014-05-16T21:22:37Z","title_canon_sha256":"c13f3bc75a04866cf07ccc84dd6183aa8a63836efa0fd6b7cf7843fde1e7c715"},"schema_version":"1.0","source":{"id":"1405.4310","kind":"arxiv","version":3}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1405.4310","created_at":"2026-05-18T01:43:11Z"},{"alias_kind":"arxiv_version","alias_value":"1405.4310v3","created_at":"2026-05-18T01:43:11Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1405.4310","created_at":"2026-05-18T01:43:11Z"},{"alias_kind":"pith_short_12","alias_value":"XSJTQZHNAZ3G","created_at":"2026-05-18T12:28:57Z"},{"alias_kind":"pith_short_16","alias_value":"XSJTQZHNAZ3GIXDV","created_at":"2026-05-18T12:28:57Z"},{"alias_kind":"pith_short_8","alias_value":"XSJTQZHN","created_at":"2026-05-18T12:28:57Z"}],"graph_snapshots":[{"event_id":"sha256:f2a4994213056e01a01ce6974460838bb2f2f83dbe36d2f1e4e2f2b8a00caa89","target":"graph","created_at":"2026-05-18T01:43:11Z","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":"We consider the production and deposition on Earth of isotopes with half-lives in the range 10$^{5}$ to 10$^{8}$ years that might provide signatures of nearby stellar explosions, extending previous analyses of Core-Collapse Supernovae (CCSNe) to include Electron-Capture Supernovae (ECSNe), Super-Asymptotic Giant Branch (SAGBs) stars, Thermonuclear/Type Ia Supernovae (TNSNe), and Kilonovae/Neutron Star Mergers (KNe). We revisit previous estimates of the $^{60}$Fe and $^{26}$Al signatures, and extend these estimates to include $^{244}$Pu and $^{53}$Mn. We discuss interpretations of the $^{60}$Fe","authors_text":"Brian D. Fields, Brian J. Fry, John R. Ellis","cross_cats":["astro-ph.EP","hep-ph","physics.geo-ph"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2014-05-16T21:22:37Z","title":"Astrophysical Shrapnel: Discriminating Among Near-Earth Stellar Explosion Sources of Live Radioactive Isotopes"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1405.4310","kind":"arxiv","version":3},"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:d2674486f21d53dcc2bed395f335d2eb3cbe97463a433aa3880a3f1bd0aace9c","target":"record","created_at":"2026-05-18T01:43:11Z","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":"6d92e973fd7780b93e6fa5be1d803bc022402ee7fe8d5ff45eacbd9f00bd6ef4","cross_cats_sorted":["astro-ph.EP","hep-ph","physics.geo-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2014-05-16T21:22:37Z","title_canon_sha256":"c13f3bc75a04866cf07ccc84dd6183aa8a63836efa0fd6b7cf7843fde1e7c715"},"schema_version":"1.0","source":{"id":"1405.4310","kind":"arxiv","version":3}},"canonical_sha256":"bc933864ed0676645c75a59818320457ad5b764bf86214f1a94460188fc8a82d","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"bc933864ed0676645c75a59818320457ad5b764bf86214f1a94460188fc8a82d","first_computed_at":"2026-05-18T01:43:11.497888Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:43:11.497888Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"7Fd5J/m19WDTZl0L9a0O+U8DoZKKEGO5Koa/4PTNNciT/O1ZDtP4HH1Oixa6Op+5UytjLoyQsH7QbpIJjOhwDw==","signature_status":"signed_v1","signed_at":"2026-05-18T01:43:11.498494Z","signed_message":"canonical_sha256_bytes"},"source_id":"1405.4310","source_kind":"arxiv","source_version":3}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:d2674486f21d53dcc2bed395f335d2eb3cbe97463a433aa3880a3f1bd0aace9c","sha256:f2a4994213056e01a01ce6974460838bb2f2f83dbe36d2f1e4e2f2b8a00caa89"],"state_sha256":"914163f7d7467da66c7049ed7617c8d37d8fcfc13146b6f7e356612740c28550"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"OWg48uYpUQAZIxoEUXzNppQzv65DB592+c+tmt4YtX2D+UrZzQmElurSPr0/H6vJgjMrZT/MqH7C3wf5Z+FkAg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-04T17:20:06.067134Z","bundle_sha256":"4e3f8af88e6dff5c76a1e9155b9c9840e68c1437a37083c60f6d28e1604970ff"}}