{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2021:4GAZK2JGLBABLAUT64NJKWF2OZ","short_pith_number":"pith:4GAZK2JG","schema_version":"1.0","canonical_sha256":"e1819569265840158293f71a9558ba7672b0ae74f18e08a1e723b5857698d887","source":{"kind":"arxiv","id":"2108.12672","version":1},"attestation_state":"computed","paper":{"title":"Abiotic molecular oxygen production -- ionic pathway from sulphur dioxide","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":["physics.atm-clus","physics.atom-ph","physics.chem-ph"],"primary_cat":"astro-ph.EP","authors_text":"Emelie Olsson, Gunnar Nyman, John H.D. Eland, M{\\aa}ns Wallner, Mahmoud Jarraya, Majdi Hochlaf, Raimund Feifel, Richard J. Squibb, Saida Ben Yaghlane, Veronica Ideb\\\"ohn","submitted_at":"2021-08-28T16:17:35Z","abstract_excerpt":"Molecular oxygen, O$_2$, is vital to life on Earth and possibly on other planets. Although the biogenic processes leading to its accumulation in Earth's atmosphere are well understood, its abiotic origin is still not fully established. Here, we report combined experimental and theoretical evidence for electronic-state-selective production of O$_2$ from SO$_2$, a major chemical constituent of many planetary atmospheres and one which played an important part on Earth in the Great Oxidation event. The O$_2$ production involves dissociative double ionisation of SO$_2$ leading to efficient formatio"},"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":"2108.12672","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.EP","submitted_at":"2021-08-28T16:17:35Z","cross_cats_sorted":["physics.atm-clus","physics.atom-ph","physics.chem-ph"],"title_canon_sha256":"7c380602867019540bd5e85d1a6b2f66029407e47dac491978ba50fb2949d2b1","abstract_canon_sha256":"3e7f6c1e5af5dda2381603d3f436f02ea442239c59efd388ad555a379116f6d1"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T05:35:41.967955Z","signature_b64":"Lk0gBaDr+34BTR/nh08GNn2E4lDCSLfdSbIbu9PclnPCmINBEbxjfqsdqJ8kkvRNAzQQQFJQxRvFqaCMYRfpDw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"e1819569265840158293f71a9558ba7672b0ae74f18e08a1e723b5857698d887","last_reissued_at":"2026-07-05T05:35:41.967405Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T05:35:41.967405Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Abiotic molecular oxygen production -- ionic pathway from sulphur dioxide","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":["physics.atm-clus","physics.atom-ph","physics.chem-ph"],"primary_cat":"astro-ph.EP","authors_text":"Emelie Olsson, Gunnar Nyman, John H.D. Eland, M{\\aa}ns Wallner, Mahmoud Jarraya, Majdi Hochlaf, Raimund Feifel, Richard J. Squibb, Saida Ben Yaghlane, Veronica Ideb\\\"ohn","submitted_at":"2021-08-28T16:17:35Z","abstract_excerpt":"Molecular oxygen, O$_2$, is vital to life on Earth and possibly on other planets. Although the biogenic processes leading to its accumulation in Earth's atmosphere are well understood, its abiotic origin is still not fully established. Here, we report combined experimental and theoretical evidence for electronic-state-selective production of O$_2$ from SO$_2$, a major chemical constituent of many planetary atmospheres and one which played an important part on Earth in the Great Oxidation event. The O$_2$ production involves dissociative double ionisation of SO$_2$ leading to efficient formatio"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2108.12672","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2108.12672/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"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":"2108.12672","created_at":"2026-07-05T05:35:41.967477+00:00"},{"alias_kind":"arxiv_version","alias_value":"2108.12672v1","created_at":"2026-07-05T05:35:41.967477+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2108.12672","created_at":"2026-07-05T05:35:41.967477+00:00"},{"alias_kind":"pith_short_12","alias_value":"4GAZK2JGLBAB","created_at":"2026-07-05T05:35:41.967477+00:00"},{"alias_kind":"pith_short_16","alias_value":"4GAZK2JGLBABLAUT","created_at":"2026-07-05T05:35:41.967477+00:00"},{"alias_kind":"pith_short_8","alias_value":"4GAZK2JG","created_at":"2026-07-05T05:35:41.967477+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/4GAZK2JGLBABLAUT64NJKWF2OZ","json":"https://pith.science/pith/4GAZK2JGLBABLAUT64NJKWF2OZ.json","graph_json":"https://pith.science/api/pith-number/4GAZK2JGLBABLAUT64NJKWF2OZ/graph.json","events_json":"https://pith.science/api/pith-number/4GAZK2JGLBABLAUT64NJKWF2OZ/events.json","paper":"https://pith.science/paper/4GAZK2JG"},"agent_actions":{"view_html":"https://pith.science/pith/4GAZK2JGLBABLAUT64NJKWF2OZ","download_json":"https://pith.science/pith/4GAZK2JGLBABLAUT64NJKWF2OZ.json","view_paper":"https://pith.science/paper/4GAZK2JG","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=2108.12672&json=true","fetch_graph":"https://pith.science/api/pith-number/4GAZK2JGLBABLAUT64NJKWF2OZ/graph.json","fetch_events":"https://pith.science/api/pith-number/4GAZK2JGLBABLAUT64NJKWF2OZ/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/4GAZK2JGLBABLAUT64NJKWF2OZ/action/timestamp_anchor","attest_storage":"https://pith.science/pith/4GAZK2JGLBABLAUT64NJKWF2OZ/action/storage_attestation","attest_author":"https://pith.science/pith/4GAZK2JGLBABLAUT64NJKWF2OZ/action/author_attestation","sign_citation":"https://pith.science/pith/4GAZK2JGLBABLAUT64NJKWF2OZ/action/citation_signature","submit_replication":"https://pith.science/pith/4GAZK2JGLBABLAUT64NJKWF2OZ/action/replication_record"}},"created_at":"2026-07-05T05:35:41.967477+00:00","updated_at":"2026-07-05T05:35:41.967477+00:00"}