{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2024:G6U2E2R5BVEQVSSJJP4HK6BROB","short_pith_number":"pith:G6U2E2R5","schema_version":"1.0","canonical_sha256":"37a9a26a3d0d490aca494bf8757831705e0a09f1b7b9cd31f7bf9b2bc54b7461","source":{"kind":"arxiv","id":"2410.07889","version":2},"attestation_state":"computed","paper":{"title":"A dichotomy in the 1-24 GHz parsec-scale radio spectra of radio-quiet quasars","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.GA","authors_text":"Amy E. Kimball, Ari Laor, Ehud Behar, Joseph D. Gelfand, Ranieri D. Baldi, Sina Chen","submitted_at":"2024-10-10T13:10:52Z","abstract_excerpt":"We present the pc-scale radio spectra of a representative sample of 13 Palomar-Green radio-quiet quasars, based on our new Very Long Baseline Array (VLBA) observations at 8.4 and 23.6 GHz and our earlier VLBA studies at 1.5 and 5.0 GHz. The radio core emission generally exhibits a flat spectrum at 1.5-5.0 GHz, which indicates a compact optically thick synchrotron source on a scale smaller than the broad-line region (BLR) radius R_BLR ~ 0.01-0.1 pc. The 8.4-23.6 GHz spectral slope remains flat in four objects indicating the inner radius of the radio source R_in < 0.1 R_BLR, and becomes steep in"},"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":"2410.07889","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2024-10-10T13:10:52Z","cross_cats_sorted":[],"title_canon_sha256":"15ceafb445d628d085f2b6fd447a9619afa411d9433c9881321e28e7916a13a4","abstract_canon_sha256":"6c04cda7264dbc3dbbdfb066b5137614972d4b9b2c6be6bfda87813d7d99b90e"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T09:50:52.831281Z","signature_b64":"cLrzhnR/uSdmVfhNBmyJaLMk5peqCW6LsOJnC/Z51N5BEXZc90VB3KGP5Vq6xFz2exwGT3lUqtLWOXjcEjEiBQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"37a9a26a3d0d490aca494bf8757831705e0a09f1b7b9cd31f7bf9b2bc54b7461","last_reissued_at":"2026-07-05T09:50:52.830785Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T09:50:52.830785Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"A dichotomy in the 1-24 GHz parsec-scale radio spectra of radio-quiet quasars","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.GA","authors_text":"Amy E. Kimball, Ari Laor, Ehud Behar, Joseph D. Gelfand, Ranieri D. Baldi, Sina Chen","submitted_at":"2024-10-10T13:10:52Z","abstract_excerpt":"We present the pc-scale radio spectra of a representative sample of 13 Palomar-Green radio-quiet quasars, based on our new Very Long Baseline Array (VLBA) observations at 8.4 and 23.6 GHz and our earlier VLBA studies at 1.5 and 5.0 GHz. The radio core emission generally exhibits a flat spectrum at 1.5-5.0 GHz, which indicates a compact optically thick synchrotron source on a scale smaller than the broad-line region (BLR) radius R_BLR ~ 0.01-0.1 pc. The 8.4-23.6 GHz spectral slope remains flat in four objects indicating the inner radius of the radio source R_in < 0.1 R_BLR, and becomes steep in"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2410.07889","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/2410.07889/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":"2410.07889","created_at":"2026-07-05T09:50:52.830844+00:00"},{"alias_kind":"arxiv_version","alias_value":"2410.07889v2","created_at":"2026-07-05T09:50:52.830844+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2410.07889","created_at":"2026-07-05T09:50:52.830844+00:00"},{"alias_kind":"pith_short_12","alias_value":"G6U2E2R5BVEQ","created_at":"2026-07-05T09:50:52.830844+00:00"},{"alias_kind":"pith_short_16","alias_value":"G6U2E2R5BVEQVSSJ","created_at":"2026-07-05T09:50:52.830844+00:00"},{"alias_kind":"pith_short_8","alias_value":"G6U2E2R5","created_at":"2026-07-05T09:50:52.830844+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/G6U2E2R5BVEQVSSJJP4HK6BROB","json":"https://pith.science/pith/G6U2E2R5BVEQVSSJJP4HK6BROB.json","graph_json":"https://pith.science/api/pith-number/G6U2E2R5BVEQVSSJJP4HK6BROB/graph.json","events_json":"https://pith.science/api/pith-number/G6U2E2R5BVEQVSSJJP4HK6BROB/events.json","paper":"https://pith.science/paper/G6U2E2R5"},"agent_actions":{"view_html":"https://pith.science/pith/G6U2E2R5BVEQVSSJJP4HK6BROB","download_json":"https://pith.science/pith/G6U2E2R5BVEQVSSJJP4HK6BROB.json","view_paper":"https://pith.science/paper/G6U2E2R5","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=2410.07889&json=true","fetch_graph":"https://pith.science/api/pith-number/G6U2E2R5BVEQVSSJJP4HK6BROB/graph.json","fetch_events":"https://pith.science/api/pith-number/G6U2E2R5BVEQVSSJJP4HK6BROB/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/G6U2E2R5BVEQVSSJJP4HK6BROB/action/timestamp_anchor","attest_storage":"https://pith.science/pith/G6U2E2R5BVEQVSSJJP4HK6BROB/action/storage_attestation","attest_author":"https://pith.science/pith/G6U2E2R5BVEQVSSJJP4HK6BROB/action/author_attestation","sign_citation":"https://pith.science/pith/G6U2E2R5BVEQVSSJJP4HK6BROB/action/citation_signature","submit_replication":"https://pith.science/pith/G6U2E2R5BVEQVSSJJP4HK6BROB/action/replication_record"}},"created_at":"2026-07-05T09:50:52.830844+00:00","updated_at":"2026-07-05T09:50:52.830844+00:00"}