{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2013:EQ6CLCHRLT2K35YBRYA5AGOVH7","short_pith_number":"pith:EQ6CLCHR","schema_version":"1.0","canonical_sha256":"243c2588f15cf4adf7018e01d019d53fc90a177b7f01f10977c71dbd5b87470c","source":{"kind":"arxiv","id":"1303.2656","version":1},"attestation_state":"computed","paper":{"title":"A new method for the extraction of mid-infrared gamma-ray emitting candidate blazars","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.HE","authors_text":"A. Paggi, F. Massaro, G. Tosti, H.A. Smith, M. Giroletti, N. Masetti, R. d'Abrusco","submitted_at":"2013-03-11T20:00:01Z","abstract_excerpt":"We present a new method for identifying blazar candidates by examining the locus, i.e. the region occupied by the Fermi gamma-ray blazars in the three-dimensional color space defined by the WISE infrared colors. This method is a refinement of our previous approach that made used of the two-dimensional projection of the the distribution of WISE gamma-ray emitting blazars (the Strip) in the three WISE color-color planes. In this paper, we define the three-dimensional locus by means of a Principal Component analysis of the the colors distribution of a large sample of blazars composed by all the R"},"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":"1303.2656","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2013-03-11T20:00:01Z","cross_cats_sorted":[],"title_canon_sha256":"bbde7230cb3fe0f335e738ed4ede1d727d0f41f8ce2bb32afa45e165804cc3f4","abstract_canon_sha256":"bc82277c243918e9b0839ac3511e839ce220aac161bbaf69606fa5276565eedc"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T03:31:08.469367Z","signature_b64":"Paxhnq1Il2psQ3DJxNtOtwHHGnMMf5WZ9Gq0nzmvXNZmJtZs3Li9at5vNYETUdPBvqdV+wqsPUAD1zbJy4NYCw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"243c2588f15cf4adf7018e01d019d53fc90a177b7f01f10977c71dbd5b87470c","last_reissued_at":"2026-05-18T03:31:08.468836Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T03:31:08.468836Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"A new method for the extraction of mid-infrared gamma-ray emitting candidate blazars","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.HE","authors_text":"A. Paggi, F. Massaro, G. Tosti, H.A. Smith, M. Giroletti, N. Masetti, R. d'Abrusco","submitted_at":"2013-03-11T20:00:01Z","abstract_excerpt":"We present a new method for identifying blazar candidates by examining the locus, i.e. the region occupied by the Fermi gamma-ray blazars in the three-dimensional color space defined by the WISE infrared colors. This method is a refinement of our previous approach that made used of the two-dimensional projection of the the distribution of WISE gamma-ray emitting blazars (the Strip) in the three WISE color-color planes. In this paper, we define the three-dimensional locus by means of a Principal Component analysis of the the colors distribution of a large sample of blazars composed by all the R"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1303.2656","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":"1303.2656","created_at":"2026-05-18T03:31:08.468910+00:00"},{"alias_kind":"arxiv_version","alias_value":"1303.2656v1","created_at":"2026-05-18T03:31:08.468910+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1303.2656","created_at":"2026-05-18T03:31:08.468910+00:00"},{"alias_kind":"pith_short_12","alias_value":"EQ6CLCHRLT2K","created_at":"2026-05-18T12:27:43.054852+00:00"},{"alias_kind":"pith_short_16","alias_value":"EQ6CLCHRLT2K35YB","created_at":"2026-05-18T12:27:43.054852+00:00"},{"alias_kind":"pith_short_8","alias_value":"EQ6CLCHR","created_at":"2026-05-18T12:27:43.054852+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/EQ6CLCHRLT2K35YBRYA5AGOVH7","json":"https://pith.science/pith/EQ6CLCHRLT2K35YBRYA5AGOVH7.json","graph_json":"https://pith.science/api/pith-number/EQ6CLCHRLT2K35YBRYA5AGOVH7/graph.json","events_json":"https://pith.science/api/pith-number/EQ6CLCHRLT2K35YBRYA5AGOVH7/events.json","paper":"https://pith.science/paper/EQ6CLCHR"},"agent_actions":{"view_html":"https://pith.science/pith/EQ6CLCHRLT2K35YBRYA5AGOVH7","download_json":"https://pith.science/pith/EQ6CLCHRLT2K35YBRYA5AGOVH7.json","view_paper":"https://pith.science/paper/EQ6CLCHR","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1303.2656&json=true","fetch_graph":"https://pith.science/api/pith-number/EQ6CLCHRLT2K35YBRYA5AGOVH7/graph.json","fetch_events":"https://pith.science/api/pith-number/EQ6CLCHRLT2K35YBRYA5AGOVH7/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/EQ6CLCHRLT2K35YBRYA5AGOVH7/action/timestamp_anchor","attest_storage":"https://pith.science/pith/EQ6CLCHRLT2K35YBRYA5AGOVH7/action/storage_attestation","attest_author":"https://pith.science/pith/EQ6CLCHRLT2K35YBRYA5AGOVH7/action/author_attestation","sign_citation":"https://pith.science/pith/EQ6CLCHRLT2K35YBRYA5AGOVH7/action/citation_signature","submit_replication":"https://pith.science/pith/EQ6CLCHRLT2K35YBRYA5AGOVH7/action/replication_record"}},"created_at":"2026-05-18T03:31:08.468910+00:00","updated_at":"2026-05-18T03:31:08.468910+00:00"}