{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2026:B6WD5SASST5YN5K4N2UMH3756A","short_pith_number":"pith:B6WD5SAS","schema_version":"1.0","canonical_sha256":"0fac3ec81294fb86f55c6ea8c3effdf00aba96db02e58e7c3311515e778bf205","source":{"kind":"arxiv","id":"2606.18334","version":1},"attestation_state":"computed","paper":{"title":"Diverse Histories and Common Origins of Nitrogen-enhanced JWST Galaxies","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.GA","authors_text":"Christopher J. Conselice, Duncan Austin, Jordan C. J. D'Silva, Thomas Harvey, Vadim Rusakov","submitted_at":"2026-06-16T18:00:00Z","abstract_excerpt":"Early JWST spectra revealed galaxies with a strong nitrogen excess challenging galactic chemical evolution models. Using public JWST surveys, we construct a sample of 76 N/O-enhanced galaxies (NOEGs) at 4 $<z<$ 8.5, the largest at high redshift to date. The NOEG fraction rises from $\\sim$3% to $\\sim$18% between $z\\sim$ 4 and 7 - well above the $\\sim$2% measured locally - potentially driven by burstier, cluster-dominated star formation. Stacked spectra of the most nitrogen-rich galaxies show signatures of low-metallicity Wolf-Rayet (WR) stars, a likely source of primary nitrogen within the firs"},"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":"2606.18334","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.GA","submitted_at":"2026-06-16T18:00:00Z","cross_cats_sorted":[],"title_canon_sha256":"a6728a55be8575775a5cac8bbf963d8937228afd2670d62df04c7a1937872c1f","abstract_canon_sha256":"5427685daacde3e6972ebb769727207979e3a94ebec07d242021a9c9a8f13172"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-06-19T16:10:58.189133Z","signature_b64":"5YUxXUeIfij1wVNc+vB6c7Edbo9Bz+wVn3ZtysLetBoURmzEgsxozAg8lkvCRHS4gYbAeRWVYnLK6C3riou6BA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"0fac3ec81294fb86f55c6ea8c3effdf00aba96db02e58e7c3311515e778bf205","last_reissued_at":"2026-06-19T16:10:58.188777Z","signature_status":"signed_v1","first_computed_at":"2026-06-19T16:10:58.188777Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Diverse Histories and Common Origins of Nitrogen-enhanced JWST Galaxies","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.GA","authors_text":"Christopher J. Conselice, Duncan Austin, Jordan C. J. D'Silva, Thomas Harvey, Vadim Rusakov","submitted_at":"2026-06-16T18:00:00Z","abstract_excerpt":"Early JWST spectra revealed galaxies with a strong nitrogen excess challenging galactic chemical evolution models. Using public JWST surveys, we construct a sample of 76 N/O-enhanced galaxies (NOEGs) at 4 $<z<$ 8.5, the largest at high redshift to date. The NOEG fraction rises from $\\sim$3% to $\\sim$18% between $z\\sim$ 4 and 7 - well above the $\\sim$2% measured locally - potentially driven by burstier, cluster-dominated star formation. Stacked spectra of the most nitrogen-rich galaxies show signatures of low-metallicity Wolf-Rayet (WR) stars, a likely source of primary nitrogen within the firs"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2606.18334","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/2606.18334/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":"2606.18334","created_at":"2026-06-19T16:10:58.188838+00:00"},{"alias_kind":"arxiv_version","alias_value":"2606.18334v1","created_at":"2026-06-19T16:10:58.188838+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2606.18334","created_at":"2026-06-19T16:10:58.188838+00:00"},{"alias_kind":"pith_short_12","alias_value":"B6WD5SASST5Y","created_at":"2026-06-19T16:10:58.188838+00:00"},{"alias_kind":"pith_short_16","alias_value":"B6WD5SASST5YN5K4","created_at":"2026-06-19T16:10:58.188838+00:00"},{"alias_kind":"pith_short_8","alias_value":"B6WD5SAS","created_at":"2026-06-19T16:10:58.188838+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/B6WD5SASST5YN5K4N2UMH3756A","json":"https://pith.science/pith/B6WD5SASST5YN5K4N2UMH3756A.json","graph_json":"https://pith.science/api/pith-number/B6WD5SASST5YN5K4N2UMH3756A/graph.json","events_json":"https://pith.science/api/pith-number/B6WD5SASST5YN5K4N2UMH3756A/events.json","paper":"https://pith.science/paper/B6WD5SAS"},"agent_actions":{"view_html":"https://pith.science/pith/B6WD5SASST5YN5K4N2UMH3756A","download_json":"https://pith.science/pith/B6WD5SASST5YN5K4N2UMH3756A.json","view_paper":"https://pith.science/paper/B6WD5SAS","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=2606.18334&json=true","fetch_graph":"https://pith.science/api/pith-number/B6WD5SASST5YN5K4N2UMH3756A/graph.json","fetch_events":"https://pith.science/api/pith-number/B6WD5SASST5YN5K4N2UMH3756A/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/B6WD5SASST5YN5K4N2UMH3756A/action/timestamp_anchor","attest_storage":"https://pith.science/pith/B6WD5SASST5YN5K4N2UMH3756A/action/storage_attestation","attest_author":"https://pith.science/pith/B6WD5SASST5YN5K4N2UMH3756A/action/author_attestation","sign_citation":"https://pith.science/pith/B6WD5SASST5YN5K4N2UMH3756A/action/citation_signature","submit_replication":"https://pith.science/pith/B6WD5SASST5YN5K4N2UMH3756A/action/replication_record"}},"created_at":"2026-06-19T16:10:58.188838+00:00","updated_at":"2026-06-19T16:10:58.188838+00:00"}