{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2016:ICBLKUUXQP6HSBGSVU5MDQSDUP","short_pith_number":"pith:ICBLKUUX","schema_version":"1.0","canonical_sha256":"4082b5529783fc7904d2ad3ac1c243a3cf82b1abbdcf0c703eba9a2072ca4de6","source":{"kind":"arxiv","id":"1612.08241","version":3},"attestation_state":"computed","paper":{"title":"The Brightness Temperature of the Quiet Solar Chromosphere at 2.6 mm","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.IM"],"primary_cat":"astro-ph.SR","authors_text":"Kazumasa Iwai, Masao Saito, Masumi Shimojo, Shinichiro Asayama, Stephen White, Tetsuhiro Minamidani, Timothy Bastian","submitted_at":"2016-12-25T07:13:33Z","abstract_excerpt":"The absolute brightness temperature of the Sun at millimeter wavelengths is an important diagnostic of the solar chromosphere. Because the Sun is so bright, measurement of this property usually involves the operation of telescopes under extreme conditions and requires a rigorous performance assessment of the telescope. In this study, we establish solar observation and calibration techniques at 2.6-mm wavelength for the Nobeyama 45-m telescope and derive the absolute solar brightness temperature accurately. We tune the superconductor-insulator-superconductor (SIS) receiver by inducing different"},"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":"1612.08241","kind":"arxiv","version":3},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2016-12-25T07:13:33Z","cross_cats_sorted":["astro-ph.IM"],"title_canon_sha256":"b0d9f0cef727a0cab68a71f935855c1f63872e74315d699cef01f04d8d8c1bd9","abstract_canon_sha256":"4be084a9d7ee93aff47eaaa6f6cfe48b4ddf75387868a3b130cf4df0456656f3"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:53:41.859489Z","signature_b64":"FBK5YA081BQEMYBusDhyXm6jnz+pBJ0xQVAJvdX3Ca2q0Q/GuQpTlTfdFT9jic+QlKM0BXTj5PTWP5A+SebQDg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"4082b5529783fc7904d2ad3ac1c243a3cf82b1abbdcf0c703eba9a2072ca4de6","last_reissued_at":"2026-05-18T00:53:41.859121Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:53:41.859121Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"The Brightness Temperature of the Quiet Solar Chromosphere at 2.6 mm","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.IM"],"primary_cat":"astro-ph.SR","authors_text":"Kazumasa Iwai, Masao Saito, Masumi Shimojo, Shinichiro Asayama, Stephen White, Tetsuhiro Minamidani, Timothy Bastian","submitted_at":"2016-12-25T07:13:33Z","abstract_excerpt":"The absolute brightness temperature of the Sun at millimeter wavelengths is an important diagnostic of the solar chromosphere. Because the Sun is so bright, measurement of this property usually involves the operation of telescopes under extreme conditions and requires a rigorous performance assessment of the telescope. In this study, we establish solar observation and calibration techniques at 2.6-mm wavelength for the Nobeyama 45-m telescope and derive the absolute solar brightness temperature accurately. We tune the superconductor-insulator-superconductor (SIS) receiver by inducing different"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1612.08241","kind":"arxiv","version":3},"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":"1612.08241","created_at":"2026-05-18T00:53:41.859177+00:00"},{"alias_kind":"arxiv_version","alias_value":"1612.08241v3","created_at":"2026-05-18T00:53:41.859177+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1612.08241","created_at":"2026-05-18T00:53:41.859177+00:00"},{"alias_kind":"pith_short_12","alias_value":"ICBLKUUXQP6H","created_at":"2026-05-18T12:30:22.444734+00:00"},{"alias_kind":"pith_short_16","alias_value":"ICBLKUUXQP6HSBGS","created_at":"2026-05-18T12:30:22.444734+00:00"},{"alias_kind":"pith_short_8","alias_value":"ICBLKUUX","created_at":"2026-05-18T12:30:22.444734+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/ICBLKUUXQP6HSBGSVU5MDQSDUP","json":"https://pith.science/pith/ICBLKUUXQP6HSBGSVU5MDQSDUP.json","graph_json":"https://pith.science/api/pith-number/ICBLKUUXQP6HSBGSVU5MDQSDUP/graph.json","events_json":"https://pith.science/api/pith-number/ICBLKUUXQP6HSBGSVU5MDQSDUP/events.json","paper":"https://pith.science/paper/ICBLKUUX"},"agent_actions":{"view_html":"https://pith.science/pith/ICBLKUUXQP6HSBGSVU5MDQSDUP","download_json":"https://pith.science/pith/ICBLKUUXQP6HSBGSVU5MDQSDUP.json","view_paper":"https://pith.science/paper/ICBLKUUX","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1612.08241&json=true","fetch_graph":"https://pith.science/api/pith-number/ICBLKUUXQP6HSBGSVU5MDQSDUP/graph.json","fetch_events":"https://pith.science/api/pith-number/ICBLKUUXQP6HSBGSVU5MDQSDUP/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/ICBLKUUXQP6HSBGSVU5MDQSDUP/action/timestamp_anchor","attest_storage":"https://pith.science/pith/ICBLKUUXQP6HSBGSVU5MDQSDUP/action/storage_attestation","attest_author":"https://pith.science/pith/ICBLKUUXQP6HSBGSVU5MDQSDUP/action/author_attestation","sign_citation":"https://pith.science/pith/ICBLKUUXQP6HSBGSVU5MDQSDUP/action/citation_signature","submit_replication":"https://pith.science/pith/ICBLKUUXQP6HSBGSVU5MDQSDUP/action/replication_record"}},"created_at":"2026-05-18T00:53:41.859177+00:00","updated_at":"2026-05-18T00:53:41.859177+00:00"}