{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2022:X6FAVCWVM3YFYVSIE44BE7O6S5","short_pith_number":"pith:X6FAVCWV","schema_version":"1.0","canonical_sha256":"bf8a0a8ad566f05c56482738127dde9761c84362c8e643e15fd7d31bb9c71636","source":{"kind":"arxiv","id":"2212.01918","version":2},"attestation_state":"computed","paper":{"title":"Mapping dust attenuation and the 2175 {\\AA} bump at kpc scales in nearby galaxies","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.GA","authors_text":"Caryl Gronwall, Cheng Li, Houjun Mo, Mallory Molina, Michael Eracleous, Nikhil Ajgaonkar, Niu Li, Renbin Yan, Ruonan Guo, Shuang Zhou, Zhuo Cheng","submitted_at":"2022-12-04T20:38:43Z","abstract_excerpt":"We develop a novel approach to measure dust attenuation properties of galaxies, including the dust opacity, shape of the attenuation curve and the strength of the 2175{\\AA} absorption feature. From an observed spectrum, the method uses a model-independent approach to derive a relative attenuation curve, with absolute amplitude calibrated using NIR photometry. The dust-corrected spectrum is fitted with stellar population models to derive the dust-free model spectrum, which is compared with the observed SED/spectrum from NUV to NIR to determine dust attenuation properties. We apply this method t"},"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":"2212.01918","kind":"arxiv","version":2},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.GA","submitted_at":"2022-12-04T20:38:43Z","cross_cats_sorted":[],"title_canon_sha256":"6b615d5c41e99730a865289e42bd214255c20b96f901a8c3d1e7ffe588803429","abstract_canon_sha256":"64296a492667c28be47f5c5ff4ebe36a30f8df6fd6122c9d53182ae02eca489d"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T06:52:01.326423Z","signature_b64":"uAzbwN2U3ggnqX7xzRJ8dYUjTRcqzBaeNAXmIcHKPJCGKbt8j4YRUwr3tCjS/EK20kG9TibEp8Ex+FHUFELwDA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"bf8a0a8ad566f05c56482738127dde9761c84362c8e643e15fd7d31bb9c71636","last_reissued_at":"2026-07-05T06:52:01.325963Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T06:52:01.325963Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Mapping dust attenuation and the 2175 {\\AA} bump at kpc scales in nearby galaxies","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.GA","authors_text":"Caryl Gronwall, Cheng Li, Houjun Mo, Mallory Molina, Michael Eracleous, Nikhil Ajgaonkar, Niu Li, Renbin Yan, Ruonan Guo, Shuang Zhou, Zhuo Cheng","submitted_at":"2022-12-04T20:38:43Z","abstract_excerpt":"We develop a novel approach to measure dust attenuation properties of galaxies, including the dust opacity, shape of the attenuation curve and the strength of the 2175{\\AA} absorption feature. From an observed spectrum, the method uses a model-independent approach to derive a relative attenuation curve, with absolute amplitude calibrated using NIR photometry. The dust-corrected spectrum is fitted with stellar population models to derive the dust-free model spectrum, which is compared with the observed SED/spectrum from NUV to NIR to determine dust attenuation properties. We apply this method t"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2212.01918","kind":"arxiv","version":2},"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/2212.01918/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":"2212.01918","created_at":"2026-07-05T06:52:01.326018+00:00"},{"alias_kind":"arxiv_version","alias_value":"2212.01918v2","created_at":"2026-07-05T06:52:01.326018+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2212.01918","created_at":"2026-07-05T06:52:01.326018+00:00"},{"alias_kind":"pith_short_12","alias_value":"X6FAVCWVM3YF","created_at":"2026-07-05T06:52:01.326018+00:00"},{"alias_kind":"pith_short_16","alias_value":"X6FAVCWVM3YFYVSI","created_at":"2026-07-05T06:52:01.326018+00:00"},{"alias_kind":"pith_short_8","alias_value":"X6FAVCWV","created_at":"2026-07-05T06:52:01.326018+00:00"}],"events":[],"event_summary":{},"paper_claims":[],"inbound_citations":{"count":1,"internal_anchor_count":1,"sample":[{"citing_arxiv_id":"2607.10573","citing_title":"Mapping Dust Attenuation at Kiloparsec Scales. III. The 2175\\AA\\ Bump","ref_index":82,"is_internal_anchor":true}]},"formal_canon":{"evidence_count":0,"sample":[],"anchors":[]},"links":{"html":"https://pith.science/pith/X6FAVCWVM3YFYVSIE44BE7O6S5","json":"https://pith.science/pith/X6FAVCWVM3YFYVSIE44BE7O6S5.json","graph_json":"https://pith.science/api/pith-number/X6FAVCWVM3YFYVSIE44BE7O6S5/graph.json","events_json":"https://pith.science/api/pith-number/X6FAVCWVM3YFYVSIE44BE7O6S5/events.json","paper":"https://pith.science/paper/X6FAVCWV"},"agent_actions":{"view_html":"https://pith.science/pith/X6FAVCWVM3YFYVSIE44BE7O6S5","download_json":"https://pith.science/pith/X6FAVCWVM3YFYVSIE44BE7O6S5.json","view_paper":"https://pith.science/paper/X6FAVCWV","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=2212.01918&json=true","fetch_graph":"https://pith.science/api/pith-number/X6FAVCWVM3YFYVSIE44BE7O6S5/graph.json","fetch_events":"https://pith.science/api/pith-number/X6FAVCWVM3YFYVSIE44BE7O6S5/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/X6FAVCWVM3YFYVSIE44BE7O6S5/action/timestamp_anchor","attest_storage":"https://pith.science/pith/X6FAVCWVM3YFYVSIE44BE7O6S5/action/storage_attestation","attest_author":"https://pith.science/pith/X6FAVCWVM3YFYVSIE44BE7O6S5/action/author_attestation","sign_citation":"https://pith.science/pith/X6FAVCWVM3YFYVSIE44BE7O6S5/action/citation_signature","submit_replication":"https://pith.science/pith/X6FAVCWVM3YFYVSIE44BE7O6S5/action/replication_record"}},"created_at":"2026-07-05T06:52:01.326018+00:00","updated_at":"2026-07-05T06:52:01.326018+00:00"}