{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2007:Z2OSJ3ZLXEQG5ETLBGHXH5B5I3","short_pith_number":"pith:Z2OSJ3ZL","canonical_record":{"source":{"id":"0706.1353","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"astro-ph","submitted_at":"2007-06-10T11:55:59Z","cross_cats_sorted":[],"title_canon_sha256":"c0ee282edb447c8435a6e595942bb995134da471e08a9a485984066ac5bdd4a8","abstract_canon_sha256":"85469274c42ade3f8fee0702fd869e80980fb4549434fb8999461460978b2660"},"schema_version":"1.0"},"canonical_sha256":"ce9d24ef2bb9206e926b098f73f43d46fc2890288cf1c4f3611ab0f58f97f672","source":{"kind":"arxiv","id":"0706.1353","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"0706.1353","created_at":"2026-05-18T02:16:30Z"},{"alias_kind":"arxiv_version","alias_value":"0706.1353v1","created_at":"2026-05-18T02:16:30Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0706.1353","created_at":"2026-05-18T02:16:30Z"},{"alias_kind":"pith_short_12","alias_value":"Z2OSJ3ZLXEQG","created_at":"2026-05-18T12:25:56Z"},{"alias_kind":"pith_short_16","alias_value":"Z2OSJ3ZLXEQG5ETL","created_at":"2026-05-18T12:25:56Z"},{"alias_kind":"pith_short_8","alias_value":"Z2OSJ3ZL","created_at":"2026-05-18T12:25:56Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2007:Z2OSJ3ZLXEQG5ETLBGHXH5B5I3","target":"record","payload":{"canonical_record":{"source":{"id":"0706.1353","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"astro-ph","submitted_at":"2007-06-10T11:55:59Z","cross_cats_sorted":[],"title_canon_sha256":"c0ee282edb447c8435a6e595942bb995134da471e08a9a485984066ac5bdd4a8","abstract_canon_sha256":"85469274c42ade3f8fee0702fd869e80980fb4549434fb8999461460978b2660"},"schema_version":"1.0"},"canonical_sha256":"ce9d24ef2bb9206e926b098f73f43d46fc2890288cf1c4f3611ab0f58f97f672","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:16:30.254812Z","signature_b64":"2WO+4R8Ux6f290n9MIUAv3X698WBJzN8D5w6ymBdNVC7W/zFRlzmuDj/ZPaW+OvWzcIsGBZuaG8sFzyhEaGVAA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"ce9d24ef2bb9206e926b098f73f43d46fc2890288cf1c4f3611ab0f58f97f672","last_reissued_at":"2026-05-18T02:16:30.254361Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:16:30.254361Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"0706.1353","source_version":1,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T02:16:30Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"mIgZJoyjKEI+vpmKlBnsahdR6YN72F/uaySR5H1B4lPdd0MFbi9Oo+5IzYtEVvNToWI8KiYG2cQ7CCOuOad+DQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-01T11:07:11.785408Z"},"content_sha256":"15ba546490c1a894e5e8833ef0dc6c35dc1a4d05df9e009178c75bb6b000c060","schema_version":"1.0","event_id":"sha256:15ba546490c1a894e5e8833ef0dc6c35dc1a4d05df9e009178c75bb6b000c060"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2007:Z2OSJ3ZLXEQG5ETLBGHXH5B5I3","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"New 60-cm Radio Survey Telescope with the Sideband-Separating SIS Receiver for the 200 GHz Band","license":"","headline":"","cross_cats":[],"primary_cat":"astro-ph","authors_text":"Hideo Ogawa, Jun-ichi Morino, Jun Korogi, Kazuhito Dobashi, Kimihiro Kimura, Kotaro Kohno, Masahiro Kaiden, Shingo Nishiura, Shin'ichiro Asayama, Takashi Noguchi, Taku Nakajima, Toshihiro Handa, Yoshinori Yonekura","submitted_at":"2007-06-10T11:55:59Z","abstract_excerpt":"We have upgraded the 60-cm radio survey telescope located in Nobeyama, Japan. We developed a new waveguide-type sideband-separating SIS mixer for the telescope, which enables the simultaneous detection of distinct molecular emission lines both in the upper and lower sidebands. Over the RF frequency range of 205-240 GHz, the single-sideband receiver noise temperatures of the new mixer are 40-100 K for the 4.0-8.0 GHz IF frequency band. The image rejection ratios are greater than 10 dB over the same range. For the dual IF signals obtained by the receiver, we have developed two sets of acousto-op"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0706.1353","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"},"verdict_id":null},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T02:16:30Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"xynJmR1jK8p8yTyYIg/GHqPXIDTC9EExUtmmXqX4Gn9+VCpFQcHfelVt24NQHVbUBRQiHZtAd93cbl8FI0dWCQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-01T11:07:11.785768Z"},"content_sha256":"d29ec3309c590557c00556da4c593bdb98c3a1dd97456baf194581ad16af5881","schema_version":"1.0","event_id":"sha256:d29ec3309c590557c00556da4c593bdb98c3a1dd97456baf194581ad16af5881"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/Z2OSJ3ZLXEQG5ETLBGHXH5B5I3/bundle.json","state_url":"https://pith.science/pith/Z2OSJ3ZLXEQG5ETLBGHXH5B5I3/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/Z2OSJ3ZLXEQG5ETLBGHXH5B5I3/bundle.json","status":"primary"}],"public_keys":[{"key_id":"pith-v1-2026-05","algorithm":"ed25519","format":"raw","public_key_b64":"stVStoiQhXFxp4s2pdzPNoqVNBMojDU/fJ2db5S3CbM=","public_key_hex":"b2d552b68890857171a78b36a5dccf368a953413288c353f7c9d9d6f94b709b3","fingerprint_sha256_b32_first128bits":"RVFV5Z2OI2J3ZUO7ERDEBCYNKS","fingerprint_sha256_hex":"8d4b5ee74e4693bcd1df2446408b0d54","rotates_at":null,"url":"https://pith.science/pith-signing-key.json","notes":"Pith uses this Ed25519 key to sign canonical record SHA-256 digests. Verify with: ed25519_verify(public_key, message=canonical_sha256_bytes, signature=base64decode(signature_b64))."}],"merge_version":"pith-open-graph-merge-v1","built_at":"2026-06-01T11:07:11Z","links":{"resolver":"https://pith.science/pith/Z2OSJ3ZLXEQG5ETLBGHXH5B5I3","bundle":"https://pith.science/pith/Z2OSJ3ZLXEQG5ETLBGHXH5B5I3/bundle.json","state":"https://pith.science/pith/Z2OSJ3ZLXEQG5ETLBGHXH5B5I3/state.json","well_known_bundle":"https://pith.science/.well-known/pith/Z2OSJ3ZLXEQG5ETLBGHXH5B5I3/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2007:Z2OSJ3ZLXEQG5ETLBGHXH5B5I3","merge_version":"pith-open-graph-merge-v1","event_count":2,"valid_event_count":2,"invalid_event_count":0,"equivocation_count":0,"current":{"canonical_record":{"metadata":{"abstract_canon_sha256":"85469274c42ade3f8fee0702fd869e80980fb4549434fb8999461460978b2660","cross_cats_sorted":[],"license":"","primary_cat":"astro-ph","submitted_at":"2007-06-10T11:55:59Z","title_canon_sha256":"c0ee282edb447c8435a6e595942bb995134da471e08a9a485984066ac5bdd4a8"},"schema_version":"1.0","source":{"id":"0706.1353","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"0706.1353","created_at":"2026-05-18T02:16:30Z"},{"alias_kind":"arxiv_version","alias_value":"0706.1353v1","created_at":"2026-05-18T02:16:30Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0706.1353","created_at":"2026-05-18T02:16:30Z"},{"alias_kind":"pith_short_12","alias_value":"Z2OSJ3ZLXEQG","created_at":"2026-05-18T12:25:56Z"},{"alias_kind":"pith_short_16","alias_value":"Z2OSJ3ZLXEQG5ETL","created_at":"2026-05-18T12:25:56Z"},{"alias_kind":"pith_short_8","alias_value":"Z2OSJ3ZL","created_at":"2026-05-18T12:25:56Z"}],"graph_snapshots":[{"event_id":"sha256:d29ec3309c590557c00556da4c593bdb98c3a1dd97456baf194581ad16af5881","target":"graph","created_at":"2026-05-18T02:16:30Z","signer":{"key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signer_id":"pith.science","signer_type":"pith_registry"},"payload":{"graph_snapshot":{"author_claims":{"count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","strong_count":0},"builder_version":"pith-number-builder-2026-05-17-v1","claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"paper":{"abstract_excerpt":"We have upgraded the 60-cm radio survey telescope located in Nobeyama, Japan. We developed a new waveguide-type sideband-separating SIS mixer for the telescope, which enables the simultaneous detection of distinct molecular emission lines both in the upper and lower sidebands. Over the RF frequency range of 205-240 GHz, the single-sideband receiver noise temperatures of the new mixer are 40-100 K for the 4.0-8.0 GHz IF frequency band. The image rejection ratios are greater than 10 dB over the same range. For the dual IF signals obtained by the receiver, we have developed two sets of acousto-op","authors_text":"Hideo Ogawa, Jun-ichi Morino, Jun Korogi, Kazuhito Dobashi, Kimihiro Kimura, Kotaro Kohno, Masahiro Kaiden, Shingo Nishiura, Shin'ichiro Asayama, Takashi Noguchi, Taku Nakajima, Toshihiro Handa, Yoshinori Yonekura","cross_cats":[],"headline":"","license":"","primary_cat":"astro-ph","submitted_at":"2007-06-10T11:55:59Z","title":"New 60-cm Radio Survey Telescope with the Sideband-Separating SIS Receiver for the 200 GHz Band"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0706.1353","kind":"arxiv","version":1},"verdict":{"created_at":null,"id":null,"model_set":{},"one_line_summary":"","pipeline_version":null,"pith_extraction_headline":"","strongest_claim":"","weakest_assumption":""}},"verdict_id":null}}],"author_attestations":[],"timestamp_anchors":[],"storage_attestations":[],"citation_signatures":[],"replication_records":[],"corrections":[],"mirror_hints":[],"record_created":{"event_id":"sha256:15ba546490c1a894e5e8833ef0dc6c35dc1a4d05df9e009178c75bb6b000c060","target":"record","created_at":"2026-05-18T02:16:30Z","signer":{"key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signer_id":"pith.science","signer_type":"pith_registry"},"payload":{"attestation_state":"computed","canonical_record":{"metadata":{"abstract_canon_sha256":"85469274c42ade3f8fee0702fd869e80980fb4549434fb8999461460978b2660","cross_cats_sorted":[],"license":"","primary_cat":"astro-ph","submitted_at":"2007-06-10T11:55:59Z","title_canon_sha256":"c0ee282edb447c8435a6e595942bb995134da471e08a9a485984066ac5bdd4a8"},"schema_version":"1.0","source":{"id":"0706.1353","kind":"arxiv","version":1}},"canonical_sha256":"ce9d24ef2bb9206e926b098f73f43d46fc2890288cf1c4f3611ab0f58f97f672","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"ce9d24ef2bb9206e926b098f73f43d46fc2890288cf1c4f3611ab0f58f97f672","first_computed_at":"2026-05-18T02:16:30.254361Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:16:30.254361Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"2WO+4R8Ux6f290n9MIUAv3X698WBJzN8D5w6ymBdNVC7W/zFRlzmuDj/ZPaW+OvWzcIsGBZuaG8sFzyhEaGVAA==","signature_status":"signed_v1","signed_at":"2026-05-18T02:16:30.254812Z","signed_message":"canonical_sha256_bytes"},"source_id":"0706.1353","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:15ba546490c1a894e5e8833ef0dc6c35dc1a4d05df9e009178c75bb6b000c060","sha256:d29ec3309c590557c00556da4c593bdb98c3a1dd97456baf194581ad16af5881"],"state_sha256":"adc98450d69030da58eca6ea6aa11efe460f265fd411a8ad77142fc6b44e8659"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"gQfcNmCKeoLyspyNQQc43Bwwfj8bnIb5Pf27jyfiQmYwO3JBAkLck2JtDpZwfd/Zru4+1gurh8j7e2hEvC8QBQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-01T11:07:11.787773Z","bundle_sha256":"2fe9afc6449f2c1f55e7f586f214cd3914437ad78987d51cf643f825a08802df"}}