{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2021:2QER3EF4NWP57AOCBZFIM4B4JY","short_pith_number":"pith:2QER3EF4","schema_version":"1.0","canonical_sha256":"d4091d90bc6d9fdf81c20e4a86703c4e33df1f18b8e76cbab9a4b3801b58b775","source":{"kind":"arxiv","id":"2112.12600","version":1},"attestation_state":"computed","paper":{"title":"Gradients of chemical abundances in the Milky Way from HII regions: distances derived from Gaia EDR3 parallaxes and temperature inhomogeneities","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.GA","authors_text":"A. Amayo, C. Esteban, G. Delgado-Inglada, J. E. M\\'endez-Delgado, J. Garc\\'ia-Rojas, K. Z. Arellano-C\\'ordova, L. Carigi","submitted_at":"2021-12-23T14:44:57Z","abstract_excerpt":"We present a reassessment of the radial abundance gradients of He, C, N, O, Ne, S, Cl, and Ar in the Milky Way using the deep optical spectra of 42 HII regions presented in Arellano-C\\'ordova et al. (2020, 2021) and M\\'endez-Delgado et al. (2020) exploring the impact of: (1) new distance determinations based on Gaia EDR3 parallaxes and (2) the use of Peimbert's temperature fluctuations paradigm ($t ^ 2> 0$) for deriving ionic abundances. We find that distances based on Gaia EDR3 data are more consistent with kinematic ones based on Galactic rotation curves calibrated with radio parallaxes, whi"},"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":"2112.12600","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.GA","submitted_at":"2021-12-23T14:44:57Z","cross_cats_sorted":[],"title_canon_sha256":"c25c15c1d3f72b403f6da3d4f79f6e4ce0c9ea89b23bb10b3dd3c722346c95c0","abstract_canon_sha256":"47ac46d817b1da0ca3fbd47c99040116c2dca842237e31fb111261e5963774e1"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T03:47:29.113706Z","signature_b64":"DQB9RUic8OmBf9F1FjjX+xFseL2fiYDFreiziD6yKmr0JkfWmgvI44X4HrCzUWuwun6ITzYmXOyVyPO2q4Z1Bg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"d4091d90bc6d9fdf81c20e4a86703c4e33df1f18b8e76cbab9a4b3801b58b775","last_reissued_at":"2026-07-05T03:47:29.113334Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T03:47:29.113334Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Gradients of chemical abundances in the Milky Way from HII regions: distances derived from Gaia EDR3 parallaxes and temperature inhomogeneities","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.GA","authors_text":"A. Amayo, C. Esteban, G. Delgado-Inglada, J. E. M\\'endez-Delgado, J. Garc\\'ia-Rojas, K. Z. Arellano-C\\'ordova, L. Carigi","submitted_at":"2021-12-23T14:44:57Z","abstract_excerpt":"We present a reassessment of the radial abundance gradients of He, C, N, O, Ne, S, Cl, and Ar in the Milky Way using the deep optical spectra of 42 HII regions presented in Arellano-C\\'ordova et al. (2020, 2021) and M\\'endez-Delgado et al. (2020) exploring the impact of: (1) new distance determinations based on Gaia EDR3 parallaxes and (2) the use of Peimbert's temperature fluctuations paradigm ($t ^ 2> 0$) for deriving ionic abundances. We find that distances based on Gaia EDR3 data are more consistent with kinematic ones based on Galactic rotation curves calibrated with radio parallaxes, whi"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2112.12600","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/2112.12600/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":"2112.12600","created_at":"2026-07-05T03:47:29.113391+00:00"},{"alias_kind":"arxiv_version","alias_value":"2112.12600v1","created_at":"2026-07-05T03:47:29.113391+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2112.12600","created_at":"2026-07-05T03:47:29.113391+00:00"},{"alias_kind":"pith_short_12","alias_value":"2QER3EF4NWP5","created_at":"2026-07-05T03:47:29.113391+00:00"},{"alias_kind":"pith_short_16","alias_value":"2QER3EF4NWP57AOC","created_at":"2026-07-05T03:47:29.113391+00:00"},{"alias_kind":"pith_short_8","alias_value":"2QER3EF4","created_at":"2026-07-05T03:47:29.113391+00:00"}],"events":[],"event_summary":{},"paper_claims":[],"inbound_citations":{"count":1,"internal_anchor_count":1,"sample":[{"citing_arxiv_id":"2607.08542","citing_title":"Constraints on the properties of warm ionized gas from low-frequency hydrogen radio recombination lines","ref_index":58,"is_internal_anchor":true}]},"formal_canon":{"evidence_count":0,"sample":[],"anchors":[]},"links":{"html":"https://pith.science/pith/2QER3EF4NWP57AOCBZFIM4B4JY","json":"https://pith.science/pith/2QER3EF4NWP57AOCBZFIM4B4JY.json","graph_json":"https://pith.science/api/pith-number/2QER3EF4NWP57AOCBZFIM4B4JY/graph.json","events_json":"https://pith.science/api/pith-number/2QER3EF4NWP57AOCBZFIM4B4JY/events.json","paper":"https://pith.science/paper/2QER3EF4"},"agent_actions":{"view_html":"https://pith.science/pith/2QER3EF4NWP57AOCBZFIM4B4JY","download_json":"https://pith.science/pith/2QER3EF4NWP57AOCBZFIM4B4JY.json","view_paper":"https://pith.science/paper/2QER3EF4","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=2112.12600&json=true","fetch_graph":"https://pith.science/api/pith-number/2QER3EF4NWP57AOCBZFIM4B4JY/graph.json","fetch_events":"https://pith.science/api/pith-number/2QER3EF4NWP57AOCBZFIM4B4JY/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/2QER3EF4NWP57AOCBZFIM4B4JY/action/timestamp_anchor","attest_storage":"https://pith.science/pith/2QER3EF4NWP57AOCBZFIM4B4JY/action/storage_attestation","attest_author":"https://pith.science/pith/2QER3EF4NWP57AOCBZFIM4B4JY/action/author_attestation","sign_citation":"https://pith.science/pith/2QER3EF4NWP57AOCBZFIM4B4JY/action/citation_signature","submit_replication":"https://pith.science/pith/2QER3EF4NWP57AOCBZFIM4B4JY/action/replication_record"}},"created_at":"2026-07-05T03:47:29.113391+00:00","updated_at":"2026-07-05T03:47:29.113391+00:00"}