{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2014:WZL3APKODARNMAXVCL3ERLDORF","short_pith_number":"pith:WZL3APKO","schema_version":"1.0","canonical_sha256":"b657b03d4e1822d602f512f648ac6e895864c9f29a73d21969736c3db7603ca9","source":{"kind":"arxiv","id":"1410.0109","version":1},"attestation_state":"computed","paper":{"title":"Milky Way dust extinction measured with QSOs","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.CO","astro-ph.IM"],"primary_cat":"astro-ph.GA","authors_text":"Christian Wolf","submitted_at":"2014-10-01T05:06:57Z","abstract_excerpt":"We investigate reddening by Milky Way dust in the low-extinction regime of $E_{B-V}<0.15$. Using over 50,000 QSOs at $0.5<z<2.5$ from the SDSS DR7 QSO Catalogue we probe the residual SDSS colours after dereddening and correcting for the known spectroscopic redshifts. We find that the extinction vector of Schlafly & Finkbeiner (2011) is a better fit to the data than that used by Schlegel et al. (1998, SFD). There is evidence for a non-linearity in the SFD reddening map, which is similarly present in the V1.2 map of the Planck Collaboration. This non-linearity is similarly seen when galaxies or "},"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":"1410.0109","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2014-10-01T05:06:57Z","cross_cats_sorted":["astro-ph.CO","astro-ph.IM"],"title_canon_sha256":"8c7834094401d1fad2499eed5e46e60db1367cfa396616116f053ee482141695","abstract_canon_sha256":"da9ec794bb886fa25ec530a67ee85071858fed5c8fd4312eaee3fab90bcc172e"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:41:53.664532Z","signature_b64":"4Ew8iLYE26BBVlqGwLtbMF1xZvVVaIqpiAEB0y+ZJUHUFfEykPwwfLeibe7CJcmOAKw6ElwQo4V4o/vsYvgCCQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"b657b03d4e1822d602f512f648ac6e895864c9f29a73d21969736c3db7603ca9","last_reissued_at":"2026-05-18T01:41:53.663893Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:41:53.663893Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Milky Way dust extinction measured with QSOs","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.CO","astro-ph.IM"],"primary_cat":"astro-ph.GA","authors_text":"Christian Wolf","submitted_at":"2014-10-01T05:06:57Z","abstract_excerpt":"We investigate reddening by Milky Way dust in the low-extinction regime of $E_{B-V}<0.15$. Using over 50,000 QSOs at $0.5<z<2.5$ from the SDSS DR7 QSO Catalogue we probe the residual SDSS colours after dereddening and correcting for the known spectroscopic redshifts. We find that the extinction vector of Schlafly & Finkbeiner (2011) is a better fit to the data than that used by Schlegel et al. (1998, SFD). There is evidence for a non-linearity in the SFD reddening map, which is similarly present in the V1.2 map of the Planck Collaboration. This non-linearity is similarly seen when galaxies or "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1410.0109","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":"1410.0109","created_at":"2026-05-18T01:41:53.663995+00:00"},{"alias_kind":"arxiv_version","alias_value":"1410.0109v1","created_at":"2026-05-18T01:41:53.663995+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1410.0109","created_at":"2026-05-18T01:41:53.663995+00:00"},{"alias_kind":"pith_short_12","alias_value":"WZL3APKODARN","created_at":"2026-05-18T12:28:54.890064+00:00"},{"alias_kind":"pith_short_16","alias_value":"WZL3APKODARNMAXV","created_at":"2026-05-18T12:28:54.890064+00:00"},{"alias_kind":"pith_short_8","alias_value":"WZL3APKO","created_at":"2026-05-18T12:28:54.890064+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/WZL3APKODARNMAXVCL3ERLDORF","json":"https://pith.science/pith/WZL3APKODARNMAXVCL3ERLDORF.json","graph_json":"https://pith.science/api/pith-number/WZL3APKODARNMAXVCL3ERLDORF/graph.json","events_json":"https://pith.science/api/pith-number/WZL3APKODARNMAXVCL3ERLDORF/events.json","paper":"https://pith.science/paper/WZL3APKO"},"agent_actions":{"view_html":"https://pith.science/pith/WZL3APKODARNMAXVCL3ERLDORF","download_json":"https://pith.science/pith/WZL3APKODARNMAXVCL3ERLDORF.json","view_paper":"https://pith.science/paper/WZL3APKO","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1410.0109&json=true","fetch_graph":"https://pith.science/api/pith-number/WZL3APKODARNMAXVCL3ERLDORF/graph.json","fetch_events":"https://pith.science/api/pith-number/WZL3APKODARNMAXVCL3ERLDORF/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/WZL3APKODARNMAXVCL3ERLDORF/action/timestamp_anchor","attest_storage":"https://pith.science/pith/WZL3APKODARNMAXVCL3ERLDORF/action/storage_attestation","attest_author":"https://pith.science/pith/WZL3APKODARNMAXVCL3ERLDORF/action/author_attestation","sign_citation":"https://pith.science/pith/WZL3APKODARNMAXVCL3ERLDORF/action/citation_signature","submit_replication":"https://pith.science/pith/WZL3APKODARNMAXVCL3ERLDORF/action/replication_record"}},"created_at":"2026-05-18T01:41:53.663995+00:00","updated_at":"2026-05-18T01:41:53.663995+00:00"}