{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2006:24WM3CPDOYIEGM5KVBPYV7AK2L","short_pith_number":"pith:24WM3CPD","schema_version":"1.0","canonical_sha256":"d72ccd89e376104333aaa85f8afc0ad2ca4b627db795b496a4cfbfb605ac053a","source":{"kind":"arxiv","id":"astro-ph/0603774","version":1},"attestation_state":"computed","paper":{"title":"Debris Disks Around White Dwarfs: The DAZ Connection","license":"","headline":"","cross_cats":[],"primary_cat":"astro-ph","authors_text":"D. E. Winget, Mukremin Kilic, S. K. Leggett, Ted von Hippel","submitted_at":"2006-03-28T21:19:25Z","abstract_excerpt":"We present near-infrared spectroscopic observations of 20 previously known DAZ white dwarfs obtained at the NASA Infrared Telescope Facility. Two of these white dwarfs (G29-38 and GD362) are known to display significant K-band excesses due to circumstellar debris disks. Here we report the discovery of excess K-band radiation from another DAZ white dwarf, WD0408-041 (GD56). Using spectroscopic observations, we show that the excess radiation cannot be explained by a stellar or substellar companion, and is likely to be caused by a warm debris disk. Our observations strengthen the connection betwe"},"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":"astro-ph/0603774","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"astro-ph","submitted_at":"2006-03-28T21:19:25Z","cross_cats_sorted":[],"title_canon_sha256":"9018df0112dd859074965ce2c1544ed36952c5e15b59ec04e68d8b694bc5278a","abstract_canon_sha256":"8d888662334f4749a9d26fcb3f85f835ef52aa9441b8f2d2ff690e385ea26a7d"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-04T16:58:31.641185Z","signature_b64":"mqctboaZ+iiNL1ItQ4aLgSQF6ETTcQtQ3dXzzrkLDwBnJBgISJD7/ROgufEUQWkLQel5QHX0OytHiMg1LT45Bw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"d72ccd89e376104333aaa85f8afc0ad2ca4b627db795b496a4cfbfb605ac053a","last_reissued_at":"2026-07-04T16:58:31.640746Z","signature_status":"signed_v1","first_computed_at":"2026-07-04T16:58:31.640746Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Debris Disks Around White Dwarfs: The DAZ Connection","license":"","headline":"","cross_cats":[],"primary_cat":"astro-ph","authors_text":"D. E. Winget, Mukremin Kilic, S. K. Leggett, Ted von Hippel","submitted_at":"2006-03-28T21:19:25Z","abstract_excerpt":"We present near-infrared spectroscopic observations of 20 previously known DAZ white dwarfs obtained at the NASA Infrared Telescope Facility. Two of these white dwarfs (G29-38 and GD362) are known to display significant K-band excesses due to circumstellar debris disks. Here we report the discovery of excess K-band radiation from another DAZ white dwarf, WD0408-041 (GD56). Using spectroscopic observations, we show that the excess radiation cannot be explained by a stellar or substellar companion, and is likely to be caused by a warm debris disk. Our observations strengthen the connection betwe"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"astro-ph/0603774","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/astro-ph/0603774/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":"astro-ph/0603774","created_at":"2026-07-04T16:58:31.640823+00:00"},{"alias_kind":"arxiv_version","alias_value":"astro-ph/0603774v1","created_at":"2026-07-04T16:58:31.640823+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.astro-ph/0603774","created_at":"2026-07-04T16:58:31.640823+00:00"},{"alias_kind":"pith_short_12","alias_value":"24WM3CPDOYIE","created_at":"2026-07-04T16:58:31.640823+00:00"},{"alias_kind":"pith_short_16","alias_value":"24WM3CPDOYIEGM5K","created_at":"2026-07-04T16:58:31.640823+00:00"},{"alias_kind":"pith_short_8","alias_value":"24WM3CPD","created_at":"2026-07-04T16:58:31.640823+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/24WM3CPDOYIEGM5KVBPYV7AK2L","json":"https://pith.science/pith/24WM3CPDOYIEGM5KVBPYV7AK2L.json","graph_json":"https://pith.science/api/pith-number/24WM3CPDOYIEGM5KVBPYV7AK2L/graph.json","events_json":"https://pith.science/api/pith-number/24WM3CPDOYIEGM5KVBPYV7AK2L/events.json","paper":"https://pith.science/paper/24WM3CPD"},"agent_actions":{"view_html":"https://pith.science/pith/24WM3CPDOYIEGM5KVBPYV7AK2L","download_json":"https://pith.science/pith/24WM3CPDOYIEGM5KVBPYV7AK2L.json","view_paper":"https://pith.science/paper/24WM3CPD","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=astro-ph/0603774&json=true","fetch_graph":"https://pith.science/api/pith-number/24WM3CPDOYIEGM5KVBPYV7AK2L/graph.json","fetch_events":"https://pith.science/api/pith-number/24WM3CPDOYIEGM5KVBPYV7AK2L/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/24WM3CPDOYIEGM5KVBPYV7AK2L/action/timestamp_anchor","attest_storage":"https://pith.science/pith/24WM3CPDOYIEGM5KVBPYV7AK2L/action/storage_attestation","attest_author":"https://pith.science/pith/24WM3CPDOYIEGM5KVBPYV7AK2L/action/author_attestation","sign_citation":"https://pith.science/pith/24WM3CPDOYIEGM5KVBPYV7AK2L/action/citation_signature","submit_replication":"https://pith.science/pith/24WM3CPDOYIEGM5KVBPYV7AK2L/action/replication_record"}},"created_at":"2026-07-04T16:58:31.640823+00:00","updated_at":"2026-07-04T16:58:31.640823+00:00"}