{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2021:NLPXFCF4556HL2GYAQFHRJWZE2","short_pith_number":"pith:NLPXFCF4","schema_version":"1.0","canonical_sha256":"6adf7288bcef7c75e8d8040a78a6d926ba16365adbf0ba92922a380564391882","source":{"kind":"arxiv","id":"2108.03700","version":1},"attestation_state":"computed","paper":{"title":"V488 Per revisited: no strong mid-infrared emission features and no evidence for stellar/sub-stellar companions","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":["astro-ph.SR"],"primary_cat":"astro-ph.EP","authors_text":"Andrew W. Howard, Beth L. Klein, B. J. Fulton, B. Zuckerman, Carl Melis, Inseok Song, Swetha Sankar","submitted_at":"2021-08-08T18:03:16Z","abstract_excerpt":"We present characterization of the planetary system architecture for V488 Per, the dustiest main sequence star known with a fractional infrared luminosity of ~16%. Far-infrared imaging photometry confirms the existence of an outer planetary system dust population with blackbody-fit temperature of ~130 K. Mid-infrared spectroscopy probing the previously-identified ~800 K inner planetary system dust population does not detect any obvious solid-state emission features, suggesting either large grain sizes that mute such emission and/or grain compositions dominated by species like amorphous carbon "},"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":"2108.03700","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.EP","submitted_at":"2021-08-08T18:03:16Z","cross_cats_sorted":["astro-ph.SR"],"title_canon_sha256":"15823f848c64082e748e59f7018dae79b812d7811ed671df97d40bddd4c1429f","abstract_canon_sha256":"80117cf15a45658c41676818ac65c69d3842c623df637ec707a764175d0f92a0"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T03:36:10.464518Z","signature_b64":"harsDXEHqjI+Re//qlRdyPjz48TGYtl5fykEFLiObb4sq880rE2Eydmth9+Ho80YX79fonQ6B9SpFY+5eQ0ZAg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"6adf7288bcef7c75e8d8040a78a6d926ba16365adbf0ba92922a380564391882","last_reissued_at":"2026-07-05T03:36:10.464009Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T03:36:10.464009Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"V488 Per revisited: no strong mid-infrared emission features and no evidence for stellar/sub-stellar companions","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":["astro-ph.SR"],"primary_cat":"astro-ph.EP","authors_text":"Andrew W. Howard, Beth L. Klein, B. J. Fulton, B. Zuckerman, Carl Melis, Inseok Song, Swetha Sankar","submitted_at":"2021-08-08T18:03:16Z","abstract_excerpt":"We present characterization of the planetary system architecture for V488 Per, the dustiest main sequence star known with a fractional infrared luminosity of ~16%. Far-infrared imaging photometry confirms the existence of an outer planetary system dust population with blackbody-fit temperature of ~130 K. Mid-infrared spectroscopy probing the previously-identified ~800 K inner planetary system dust population does not detect any obvious solid-state emission features, suggesting either large grain sizes that mute such emission and/or grain compositions dominated by species like amorphous carbon "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2108.03700","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/2108.03700/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":"2108.03700","created_at":"2026-07-05T03:36:10.464068+00:00"},{"alias_kind":"arxiv_version","alias_value":"2108.03700v1","created_at":"2026-07-05T03:36:10.464068+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2108.03700","created_at":"2026-07-05T03:36:10.464068+00:00"},{"alias_kind":"pith_short_12","alias_value":"NLPXFCF4556H","created_at":"2026-07-05T03:36:10.464068+00:00"},{"alias_kind":"pith_short_16","alias_value":"NLPXFCF4556HL2GY","created_at":"2026-07-05T03:36:10.464068+00:00"},{"alias_kind":"pith_short_8","alias_value":"NLPXFCF4","created_at":"2026-07-05T03:36:10.464068+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/NLPXFCF4556HL2GYAQFHRJWZE2","json":"https://pith.science/pith/NLPXFCF4556HL2GYAQFHRJWZE2.json","graph_json":"https://pith.science/api/pith-number/NLPXFCF4556HL2GYAQFHRJWZE2/graph.json","events_json":"https://pith.science/api/pith-number/NLPXFCF4556HL2GYAQFHRJWZE2/events.json","paper":"https://pith.science/paper/NLPXFCF4"},"agent_actions":{"view_html":"https://pith.science/pith/NLPXFCF4556HL2GYAQFHRJWZE2","download_json":"https://pith.science/pith/NLPXFCF4556HL2GYAQFHRJWZE2.json","view_paper":"https://pith.science/paper/NLPXFCF4","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=2108.03700&json=true","fetch_graph":"https://pith.science/api/pith-number/NLPXFCF4556HL2GYAQFHRJWZE2/graph.json","fetch_events":"https://pith.science/api/pith-number/NLPXFCF4556HL2GYAQFHRJWZE2/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/NLPXFCF4556HL2GYAQFHRJWZE2/action/timestamp_anchor","attest_storage":"https://pith.science/pith/NLPXFCF4556HL2GYAQFHRJWZE2/action/storage_attestation","attest_author":"https://pith.science/pith/NLPXFCF4556HL2GYAQFHRJWZE2/action/author_attestation","sign_citation":"https://pith.science/pith/NLPXFCF4556HL2GYAQFHRJWZE2/action/citation_signature","submit_replication":"https://pith.science/pith/NLPXFCF4556HL2GYAQFHRJWZE2/action/replication_record"}},"created_at":"2026-07-05T03:36:10.464068+00:00","updated_at":"2026-07-05T03:36:10.464068+00:00"}