{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2018:BVVGKD67MOPUYUFOSGB6DLVSKW","short_pith_number":"pith:BVVGKD67","schema_version":"1.0","canonical_sha256":"0d6a650fdf639f4c50ae9183e1aeb255995bab477f6005229fc0b5898fd4b417","source":{"kind":"arxiv","id":"1807.03925","version":1},"attestation_state":"computed","paper":{"title":"Krypton isotopes and noble gas abundances in the coma of comet 67P/Churyumov-Gerasimenko","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.EP","authors_text":"Akiva Bar-Nun, Axel Korth, Bernard Marty, Bj\\\"orn Fiethe, Chia-Yu Tzou, Christelle Briois, Diana Laufer, Ernest Kopp, Hans Balsiger, Henri R\\`eme, Jack H. Waite, Jean-Jacques Berthelier, Johan De Keyser, Kathrin Altwegg, Kenneth C. Hansen, L\\'ena Le Roy, Martin Rubin, Michael Combi, Olivier Mousis, Peter Wurz, Sebastien Gasc, Stephen A. Fuselier, Tamas I. Gombosi, Thierry S\\'emon, Tobias Owen, Ursina Calmonte, Urs Mall","submitted_at":"2018-07-11T02:01:42Z","abstract_excerpt":"The ROSINA mass spectrometer DFMS on board ESA's Rosetta spacecraft detected the major isotopes of the noble gases argon, krypton, and xenon in the coma of comet 67P/Churyumov-Gerasimenko. Earlier, it has been shown that xenon exhibits an isotopic composition distinct from anywhere else in the solar system. However, argon isotopes, within error, were shown to be consistent with solar isotope abundances. This discrepancy suggested an additional exotic component of xenon in comet 67P/Churyumov-Gerasimenko. Here we show that also krypton exhibits an isotopic composition close to solar. Furthermor"},"verification_status":{"content_addressed":true,"pith_receipt":true,"author_attested":false,"weak_author_claims":0,"strong_author_claims":0,"externally_anchored":false,"storage_verified":false,"citation_signatures":0,"replication_records":0,"graph_snapshot":true,"references_resolved":false,"formal_links_present":false},"canonical_record":{"source":{"id":"1807.03925","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.EP","submitted_at":"2018-07-11T02:01:42Z","cross_cats_sorted":[],"title_canon_sha256":"2792d5ab77454ce153ee089840ed7cc8d50fe9812751d0541418477c1b8b004b","abstract_canon_sha256":"d434e2ae0a8090d00e8a6c8861ec3e3b4ac2ed13453401d88deef2bce96db74d"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:10:58.638789Z","signature_b64":"+HbQLWBbaDYO8/4NRvtBvrFlutzPPtAfWz0TnD2xF3NHvD1Ko3hUa8sGoIgCwlN90HmqCBtHLKZ8LnzIUuWrAQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"0d6a650fdf639f4c50ae9183e1aeb255995bab477f6005229fc0b5898fd4b417","last_reissued_at":"2026-05-18T00:10:58.637841Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:10:58.637841Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Krypton isotopes and noble gas abundances in the coma of comet 67P/Churyumov-Gerasimenko","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.EP","authors_text":"Akiva Bar-Nun, Axel Korth, Bernard Marty, Bj\\\"orn Fiethe, Chia-Yu Tzou, Christelle Briois, Diana Laufer, Ernest Kopp, Hans Balsiger, Henri R\\`eme, Jack H. Waite, Jean-Jacques Berthelier, Johan De Keyser, Kathrin Altwegg, Kenneth C. Hansen, L\\'ena Le Roy, Martin Rubin, Michael Combi, Olivier Mousis, Peter Wurz, Sebastien Gasc, Stephen A. Fuselier, Tamas I. Gombosi, Thierry S\\'emon, Tobias Owen, Ursina Calmonte, Urs Mall","submitted_at":"2018-07-11T02:01:42Z","abstract_excerpt":"The ROSINA mass spectrometer DFMS on board ESA's Rosetta spacecraft detected the major isotopes of the noble gases argon, krypton, and xenon in the coma of comet 67P/Churyumov-Gerasimenko. Earlier, it has been shown that xenon exhibits an isotopic composition distinct from anywhere else in the solar system. However, argon isotopes, within error, were shown to be consistent with solar isotope abundances. This discrepancy suggested an additional exotic component of xenon in comet 67P/Churyumov-Gerasimenko. Here we show that also krypton exhibits an isotopic composition close to solar. Furthermor"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1807.03925","kind":"arxiv","version":1},"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"},"aliases":[{"alias_kind":"arxiv","alias_value":"1807.03925","created_at":"2026-05-18T00:10:58.638013+00:00"},{"alias_kind":"arxiv_version","alias_value":"1807.03925v1","created_at":"2026-05-18T00:10:58.638013+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1807.03925","created_at":"2026-05-18T00:10:58.638013+00:00"},{"alias_kind":"pith_short_12","alias_value":"BVVGKD67MOPU","created_at":"2026-05-18T12:32:16.446611+00:00"},{"alias_kind":"pith_short_16","alias_value":"BVVGKD67MOPUYUFO","created_at":"2026-05-18T12:32:16.446611+00:00"},{"alias_kind":"pith_short_8","alias_value":"BVVGKD67","created_at":"2026-05-18T12:32:16.446611+00:00"}],"events":[],"event_summary":{},"paper_claims":[],"inbound_citations":{"count":0,"internal_anchor_count":0,"sample":[]},"formal_canon":{"evidence_count":0,"sample":[],"anchors":[]},"links":{"html":"https://pith.science/pith/BVVGKD67MOPUYUFOSGB6DLVSKW","json":"https://pith.science/pith/BVVGKD67MOPUYUFOSGB6DLVSKW.json","graph_json":"https://pith.science/api/pith-number/BVVGKD67MOPUYUFOSGB6DLVSKW/graph.json","events_json":"https://pith.science/api/pith-number/BVVGKD67MOPUYUFOSGB6DLVSKW/events.json","paper":"https://pith.science/paper/BVVGKD67"},"agent_actions":{"view_html":"https://pith.science/pith/BVVGKD67MOPUYUFOSGB6DLVSKW","download_json":"https://pith.science/pith/BVVGKD67MOPUYUFOSGB6DLVSKW.json","view_paper":"https://pith.science/paper/BVVGKD67","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1807.03925&json=true","fetch_graph":"https://pith.science/api/pith-number/BVVGKD67MOPUYUFOSGB6DLVSKW/graph.json","fetch_events":"https://pith.science/api/pith-number/BVVGKD67MOPUYUFOSGB6DLVSKW/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/BVVGKD67MOPUYUFOSGB6DLVSKW/action/timestamp_anchor","attest_storage":"https://pith.science/pith/BVVGKD67MOPUYUFOSGB6DLVSKW/action/storage_attestation","attest_author":"https://pith.science/pith/BVVGKD67MOPUYUFOSGB6DLVSKW/action/author_attestation","sign_citation":"https://pith.science/pith/BVVGKD67MOPUYUFOSGB6DLVSKW/action/citation_signature","submit_replication":"https://pith.science/pith/BVVGKD67MOPUYUFOSGB6DLVSKW/action/replication_record"}},"created_at":"2026-05-18T00:10:58.638013+00:00","updated_at":"2026-05-18T00:10:58.638013+00:00"}