{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2014:5JHOSE5BXYL4E23LAB5V44IDSC","short_pith_number":"pith:5JHOSE5B","schema_version":"1.0","canonical_sha256":"ea4ee913a1be17c26b6b007b5e7103908ca374243f6618ff0e8c97dcedcab300","source":{"kind":"arxiv","id":"1407.0485","version":1},"attestation_state":"computed","paper":{"title":"Clues on the Galactic evolution of sulphur from star clusters","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.SR","authors_text":"E. Caffau, G. Carraro, H.-G. Ludwig, L. Monaco, L. Sbordone, M. Spite, P. Bonifacio, S. Villanova, Y. Beletsky","submitted_at":"2014-07-02T08:52:27Z","abstract_excerpt":"(Abridged) The abundances of alpha-elements are a powerful diagnostic of the star formation history and chemical evolution of a galaxy. Sulphur, being moderately volatile, can be reliably measured in the interstellar medium (ISM) of damped Ly-alpha galaxies and extragalactic HII regions. Measurements in stars of different metallicity in our Galaxy can then be readily compared to the abundances in external galaxies. Such a comparison is not possible for Si or Ca that suffer depletion onto dust in the ISM. Furthermore, studying sulphur is interesting because it probes nucleosynthetic conditions "},"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":"1407.0485","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2014-07-02T08:52:27Z","cross_cats_sorted":[],"title_canon_sha256":"e61ae9616050d429837eea6e3c59a63105ef582ab395021a61102940f8dc6b61","abstract_canon_sha256":"c1d039846b24d43eebaf408f2b23293edb0e8042a1a493a13b30b3a22430e127"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:42:42.771798Z","signature_b64":"p/m10ylE8GTKG+RxsyDpzWq2/wJcf5qSFAJzFwpXEySn37e/GpKAl4zT6NFfqYeFbGCZ/YNOpXmu88YkvGVPCA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"ea4ee913a1be17c26b6b007b5e7103908ca374243f6618ff0e8c97dcedcab300","last_reissued_at":"2026-05-18T01:42:42.771415Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:42:42.771415Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Clues on the Galactic evolution of sulphur from star clusters","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.SR","authors_text":"E. Caffau, G. Carraro, H.-G. Ludwig, L. Monaco, L. Sbordone, M. Spite, P. Bonifacio, S. Villanova, Y. Beletsky","submitted_at":"2014-07-02T08:52:27Z","abstract_excerpt":"(Abridged) The abundances of alpha-elements are a powerful diagnostic of the star formation history and chemical evolution of a galaxy. Sulphur, being moderately volatile, can be reliably measured in the interstellar medium (ISM) of damped Ly-alpha galaxies and extragalactic HII regions. Measurements in stars of different metallicity in our Galaxy can then be readily compared to the abundances in external galaxies. Such a comparison is not possible for Si or Ca that suffer depletion onto dust in the ISM. Furthermore, studying sulphur is interesting because it probes nucleosynthetic conditions "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1407.0485","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":"1407.0485","created_at":"2026-05-18T01:42:42.771475+00:00"},{"alias_kind":"arxiv_version","alias_value":"1407.0485v1","created_at":"2026-05-18T01:42:42.771475+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1407.0485","created_at":"2026-05-18T01:42:42.771475+00:00"},{"alias_kind":"pith_short_12","alias_value":"5JHOSE5BXYL4","created_at":"2026-05-18T12:28:14.216126+00:00"},{"alias_kind":"pith_short_16","alias_value":"5JHOSE5BXYL4E23L","created_at":"2026-05-18T12:28:14.216126+00:00"},{"alias_kind":"pith_short_8","alias_value":"5JHOSE5B","created_at":"2026-05-18T12:28:14.216126+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/5JHOSE5BXYL4E23LAB5V44IDSC","json":"https://pith.science/pith/5JHOSE5BXYL4E23LAB5V44IDSC.json","graph_json":"https://pith.science/api/pith-number/5JHOSE5BXYL4E23LAB5V44IDSC/graph.json","events_json":"https://pith.science/api/pith-number/5JHOSE5BXYL4E23LAB5V44IDSC/events.json","paper":"https://pith.science/paper/5JHOSE5B"},"agent_actions":{"view_html":"https://pith.science/pith/5JHOSE5BXYL4E23LAB5V44IDSC","download_json":"https://pith.science/pith/5JHOSE5BXYL4E23LAB5V44IDSC.json","view_paper":"https://pith.science/paper/5JHOSE5B","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1407.0485&json=true","fetch_graph":"https://pith.science/api/pith-number/5JHOSE5BXYL4E23LAB5V44IDSC/graph.json","fetch_events":"https://pith.science/api/pith-number/5JHOSE5BXYL4E23LAB5V44IDSC/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/5JHOSE5BXYL4E23LAB5V44IDSC/action/timestamp_anchor","attest_storage":"https://pith.science/pith/5JHOSE5BXYL4E23LAB5V44IDSC/action/storage_attestation","attest_author":"https://pith.science/pith/5JHOSE5BXYL4E23LAB5V44IDSC/action/author_attestation","sign_citation":"https://pith.science/pith/5JHOSE5BXYL4E23LAB5V44IDSC/action/citation_signature","submit_replication":"https://pith.science/pith/5JHOSE5BXYL4E23LAB5V44IDSC/action/replication_record"}},"created_at":"2026-05-18T01:42:42.771475+00:00","updated_at":"2026-05-18T01:42:42.771475+00:00"}