{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2024:POWKE2ELGOLYSAX6SKLAQMMLZY","short_pith_number":"pith:POWKE2EL","schema_version":"1.0","canonical_sha256":"7baca2688b33978902fe929608318bce02c10db1b0857222dbbecddf6e4c92d2","source":{"kind":"arxiv","id":"2407.12386","version":1},"attestation_state":"computed","paper":{"title":"An Empirical Extinction Curve Revealed by Gaia XP Spectra and LAMOST","license":"http://creativecommons.org/licenses/by-nc-sa/4.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.GA","authors_text":"Bowen Huang, Gregory M. Green, Haibo Yuan, Lin Yang, Ruoyi Zhang, Tao Wang, Xiangyu Zhang","submitted_at":"2024-07-17T08:07:40Z","abstract_excerpt":"We present a direct measurement of extinction curves using corrected $Gaia$ XP spectra of the common sources in $Gaia$ DR3 and LAMOST DR7. Our analysis of approximately 370 thousand high-quality samples yielded a high-precision average extinction curve for the Milky Way. After incorporating infrared photometric data from 2MASS and WISE, the extinction curve spans wavelengths from 0.336 to 4.6 $\\mu$m. We determine an average $R_{55}$ of $2.730 \\pm 0.007$, corresponding to $R_V= 3.073 \\pm 0.009$, and a near-infrared power-law index $\\alpha$ of $1.935 \\pm 0.037$. Our study confirmed some intermed"},"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":"2407.12386","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by-nc-sa/4.0/","primary_cat":"astro-ph.GA","submitted_at":"2024-07-17T08:07:40Z","cross_cats_sorted":[],"title_canon_sha256":"7d89fa9210e1546e6b06a780a4c9800043c4ce5e7ba008dc5c0073264017d56b","abstract_canon_sha256":"9e1c5fde08348a69a2e8788a3fa15e50c4018c84e99de709ab8b6e3ea2bb7a96"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T08:45:04.032777Z","signature_b64":"FgWAKz0ccde3TlPibXoApq5JqG2JPXeZcp8wAmZoyrTiosIj8T6MPCV7Lh/naLo0oiIgIqudnNlkkPKXEyMKAw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"7baca2688b33978902fe929608318bce02c10db1b0857222dbbecddf6e4c92d2","last_reissued_at":"2026-07-05T08:45:04.032435Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T08:45:04.032435Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"An Empirical Extinction Curve Revealed by Gaia XP Spectra and LAMOST","license":"http://creativecommons.org/licenses/by-nc-sa/4.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.GA","authors_text":"Bowen Huang, Gregory M. Green, Haibo Yuan, Lin Yang, Ruoyi Zhang, Tao Wang, Xiangyu Zhang","submitted_at":"2024-07-17T08:07:40Z","abstract_excerpt":"We present a direct measurement of extinction curves using corrected $Gaia$ XP spectra of the common sources in $Gaia$ DR3 and LAMOST DR7. Our analysis of approximately 370 thousand high-quality samples yielded a high-precision average extinction curve for the Milky Way. After incorporating infrared photometric data from 2MASS and WISE, the extinction curve spans wavelengths from 0.336 to 4.6 $\\mu$m. We determine an average $R_{55}$ of $2.730 \\pm 0.007$, corresponding to $R_V= 3.073 \\pm 0.009$, and a near-infrared power-law index $\\alpha$ of $1.935 \\pm 0.037$. Our study confirmed some intermed"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2407.12386","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/2407.12386/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":"2407.12386","created_at":"2026-07-05T08:45:04.032491+00:00"},{"alias_kind":"arxiv_version","alias_value":"2407.12386v1","created_at":"2026-07-05T08:45:04.032491+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2407.12386","created_at":"2026-07-05T08:45:04.032491+00:00"},{"alias_kind":"pith_short_12","alias_value":"POWKE2ELGOLY","created_at":"2026-07-05T08:45:04.032491+00:00"},{"alias_kind":"pith_short_16","alias_value":"POWKE2ELGOLYSAX6","created_at":"2026-07-05T08:45:04.032491+00:00"},{"alias_kind":"pith_short_8","alias_value":"POWKE2EL","created_at":"2026-07-05T08:45:04.032491+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/POWKE2ELGOLYSAX6SKLAQMMLZY","json":"https://pith.science/pith/POWKE2ELGOLYSAX6SKLAQMMLZY.json","graph_json":"https://pith.science/api/pith-number/POWKE2ELGOLYSAX6SKLAQMMLZY/graph.json","events_json":"https://pith.science/api/pith-number/POWKE2ELGOLYSAX6SKLAQMMLZY/events.json","paper":"https://pith.science/paper/POWKE2EL"},"agent_actions":{"view_html":"https://pith.science/pith/POWKE2ELGOLYSAX6SKLAQMMLZY","download_json":"https://pith.science/pith/POWKE2ELGOLYSAX6SKLAQMMLZY.json","view_paper":"https://pith.science/paper/POWKE2EL","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=2407.12386&json=true","fetch_graph":"https://pith.science/api/pith-number/POWKE2ELGOLYSAX6SKLAQMMLZY/graph.json","fetch_events":"https://pith.science/api/pith-number/POWKE2ELGOLYSAX6SKLAQMMLZY/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/POWKE2ELGOLYSAX6SKLAQMMLZY/action/timestamp_anchor","attest_storage":"https://pith.science/pith/POWKE2ELGOLYSAX6SKLAQMMLZY/action/storage_attestation","attest_author":"https://pith.science/pith/POWKE2ELGOLYSAX6SKLAQMMLZY/action/author_attestation","sign_citation":"https://pith.science/pith/POWKE2ELGOLYSAX6SKLAQMMLZY/action/citation_signature","submit_replication":"https://pith.science/pith/POWKE2ELGOLYSAX6SKLAQMMLZY/action/replication_record"}},"created_at":"2026-07-05T08:45:04.032491+00:00","updated_at":"2026-07-05T08:45:04.032491+00:00"}