{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2019:IC3VUKPR4CBSBGGWXOAN5AUEQX","short_pith_number":"pith:IC3VUKPR","canonical_record":{"source":{"id":"1910.10915","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ex","submitted_at":"2019-10-24T05:10:00Z","cross_cats_sorted":[],"title_canon_sha256":"2fbaa0fe0ef836276210e718be63178ad3b746a2f8aff05cd3498e415f533494","abstract_canon_sha256":"e9d8998e8e063abaab582bf649e6f0ab83e031669d8bb97471e8359f534b0114"},"schema_version":"1.0"},"canonical_sha256":"40b75a29f1e0832098d6bb80de828485ca17e564f8aaa82ac44e74f381b5e385","source":{"kind":"arxiv","id":"1910.10915","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1910.10915","created_at":"2026-07-05T00:51:33Z"},{"alias_kind":"arxiv_version","alias_value":"1910.10915v1","created_at":"2026-07-05T00:51:33Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1910.10915","created_at":"2026-07-05T00:51:33Z"},{"alias_kind":"pith_short_12","alias_value":"IC3VUKPR4CBS","created_at":"2026-07-05T00:51:33Z"},{"alias_kind":"pith_short_16","alias_value":"IC3VUKPR4CBSBGGW","created_at":"2026-07-05T00:51:33Z"},{"alias_kind":"pith_short_8","alias_value":"IC3VUKPR","created_at":"2026-07-05T00:51:33Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2019:IC3VUKPR4CBSBGGWXOAN5AUEQX","target":"record","payload":{"canonical_record":{"source":{"id":"1910.10915","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ex","submitted_at":"2019-10-24T05:10:00Z","cross_cats_sorted":[],"title_canon_sha256":"2fbaa0fe0ef836276210e718be63178ad3b746a2f8aff05cd3498e415f533494","abstract_canon_sha256":"e9d8998e8e063abaab582bf649e6f0ab83e031669d8bb97471e8359f534b0114"},"schema_version":"1.0"},"canonical_sha256":"40b75a29f1e0832098d6bb80de828485ca17e564f8aaa82ac44e74f381b5e385","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T00:51:33.375637Z","signature_b64":"Tm37YMKBUuhdU/QZCQ7uawk3jO82lw80X0Yc2aWUwsnNbEsDuA8VATqKEtF/A8kVwYXJFRzYOVHQ9YePYiYkDg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"40b75a29f1e0832098d6bb80de828485ca17e564f8aaa82ac44e74f381b5e385","last_reissued_at":"2026-07-05T00:51:33.375184Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T00:51:33.375184Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1910.10915","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":"2026-07-05T00:51:33Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"77OyqbX69Uya146HiHSRc9c2l++1O9rwHyK7PmGnt2YYFnD8l9+jO01UCZI0go2St5tLKrTGjo4UrXAWuNtgDw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-14T20:19:46.982125Z"},"content_sha256":"07cfe6368fe6af081c98fc64f3baa6da9f53b7a1eec89ed299ede5da236bfb71","schema_version":"1.0","event_id":"sha256:07cfe6368fe6af081c98fc64f3baa6da9f53b7a1eec89ed299ede5da236bfb71"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2019:IC3VUKPR4CBSBGGWXOAN5AUEQX","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Observation of the radiative decays of $\\Upsilon(1S)$ to $\\chi_{c1}$","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"hep-ex","authors_text":"A. Bobrov, A. Chen, A. Garmash, A. Giri, A. Ishikawa, A. Rostomyan, A. Vossen, B. Bhuyan, B. G. Cheon, B. G. Fulsom, B. Golob, B. Wang, C. Beleno, C. H. Wang, C. MacQueen, C. P. Shen, C. Schwanda, C. W. Park, C. Z. Yuan, D. Cervenkov, D. Cinabro, D. Epifanov, D. Joffe, D. M. Asner, D. Matvienko, D. Sahoo, D. Y. Kim, E. Nakano, E. Prencipe, E. Solovieva, E. Won, F. Di Capua, F. Tenchini, G. B. Mohanty, G. Bonvicini, G. Karyan, G. Pakhlova, G. Russo, G. Schnell, G. Varner, H. Aihara, H. B. Jeon, H. E. Cho, H. Hayashii, H. Kichimi, H. Miyata, H. Ono, H. Park, H. Ye, I. Adachi, I. Badhrees, I. S. Lee, J. Bennett, J. Biswal, J. E. Fast, J.-G. Shiu, J. H. Yin, J. Libby, J. Schueler, J. Yelton, K. Chilikin, K. Cho, K. Hayasaka, K. Inami, K. Kinoshita, K. K. Joo, K. Lieret, K. Miyabayashi, K. Nishimura, K. Senyo, K. Tanida, K. T. Kim, K. Trabelsi, L. Cao, L. E. Piilonen, L. Li Gioi, M. Bracko, M. Campajola, M. E. Sevior, M. Iwasaki, M. Masuda, M. Merola, M. Nakao, M. Nayak, M. Ritter, M. Staric, M. Takizawa, M. T. Prim, M. Uchida, M.-Z. Wang, N. Gabyshev, N. K. Nisar, N. Rout, O. Grzymkowska, O. Hartbrich, O. Schneider, P. Behera, P. Goldenzweig, P. Katrenko, P. Kodys, P. Lewis, P. Oskin, P. Pakhlov, P. Urquijo, P. Wang, R. Garg, R. Itoh, R. Kroeger, R. Mizuk, R. Mussa, R. Pestotnik, R. van Tonder, S. Al Said, S. Bahinipati, S. B. Yang, S. Choudhury, S. C. Lee, S. Cunliffe, S. Di Carlo, S. Eidelman, S. H. Kim, S.-H. Park, S. Jia, S.-K. Choi, S. Korpar, S. Nishida, S. Pardi, S. Paul, S. Sandilya, S. Uehara, S. Uno, T. Aushev, T. Iijima, T. J. Moon, T. K. Pedlar, T. Kuhr, T. Matsuda, T. Mori, T. Nakano, T. Pang, T. Sanuki, T. Sumiyoshi, T. Uglov, T. V. Dong, U. Tamponi, V. Bhardwaj, V. Chekelian, V. Gaur, V. Popov, V. Savinov, V. Zhilich, V. Zhukova, W.-S. Hou, W. Sutcliffe, W. W. Jacobs, X. L. Wang, Y. B. Li, Y. Choi, Y. Iwasaki, Y. Jin, Y. Onuki, Y. Sakai, Y. Seino, Y. Unno, Y. Usov, Y. Yusa, Z. Dolezal, Z. P. Zhang, Z. S. Stottler","submitted_at":"2019-10-24T05:10:00Z","abstract_excerpt":"We report the first observation of the radiative decay of the $\\Upsilon(1S)$ into a charmonium state. The statistical significance of the observed signal of $\\Upsilon(1S) \\to \\gamma \\chi_{c1}$ is 6.3 standard deviations including systematics. The branching fraction is calculated to be Br($\\Upsilon(1S) \\to \\gamma \\chi_{c1}$) = (4.7^{+2.4}_{-1.8} (stat) ^{+0.4}_{-0.5} (sys)) * 10^{-5}. We also searched for $\\Upsilon(1S)$ radiative decays into $\\chi_{c0,2}$ and $\\eta_c(1S,2S)$ and set upper limits on their branching fractions. These results are obtained from a 24.9 fb^{-1} data sample collected w"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1910.10915","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/1910.10915/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"},"verdict_id":null},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-07-05T00:51:33Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"N5LgUjgI+tzn/5bTdGoXswpjSQxlikvhv/QLHvUUTnxE+29zBOaw3HxVKswaCxFRj0bhKJaBCF9uB6zCv3DuBQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-14T20:19:46.984146Z"},"content_sha256":"7206ffa828c487bba981a44267a175203fc5e10ec0be6163e5e7e18a39dcdf2a","schema_version":"1.0","event_id":"sha256:7206ffa828c487bba981a44267a175203fc5e10ec0be6163e5e7e18a39dcdf2a"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/IC3VUKPR4CBSBGGWXOAN5AUEQX/bundle.json","state_url":"https://pith.science/pith/IC3VUKPR4CBSBGGWXOAN5AUEQX/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/IC3VUKPR4CBSBGGWXOAN5AUEQX/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":"2026-08-14T20:19:46Z","links":{"resolver":"https://pith.science/pith/IC3VUKPR4CBSBGGWXOAN5AUEQX","bundle":"https://pith.science/pith/IC3VUKPR4CBSBGGWXOAN5AUEQX/bundle.json","state":"https://pith.science/pith/IC3VUKPR4CBSBGGWXOAN5AUEQX/state.json","well_known_bundle":"https://pith.science/.well-known/pith/IC3VUKPR4CBSBGGWXOAN5AUEQX/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2019:IC3VUKPR4CBSBGGWXOAN5AUEQX","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":"e9d8998e8e063abaab582bf649e6f0ab83e031669d8bb97471e8359f534b0114","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ex","submitted_at":"2019-10-24T05:10:00Z","title_canon_sha256":"2fbaa0fe0ef836276210e718be63178ad3b746a2f8aff05cd3498e415f533494"},"schema_version":"1.0","source":{"id":"1910.10915","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1910.10915","created_at":"2026-07-05T00:51:33Z"},{"alias_kind":"arxiv_version","alias_value":"1910.10915v1","created_at":"2026-07-05T00:51:33Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1910.10915","created_at":"2026-07-05T00:51:33Z"},{"alias_kind":"pith_short_12","alias_value":"IC3VUKPR4CBS","created_at":"2026-07-05T00:51:33Z"},{"alias_kind":"pith_short_16","alias_value":"IC3VUKPR4CBSBGGW","created_at":"2026-07-05T00:51:33Z"},{"alias_kind":"pith_short_8","alias_value":"IC3VUKPR","created_at":"2026-07-05T00:51:33Z"}],"graph_snapshots":[{"event_id":"sha256:7206ffa828c487bba981a44267a175203fc5e10ec0be6163e5e7e18a39dcdf2a","target":"graph","created_at":"2026-07-05T00:51:33Z","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"},"integrity":{"available":true,"clean":true,"detectors_run":[],"endpoint":"/pith/1910.10915/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We report the first observation of the radiative decay of the $\\Upsilon(1S)$ into a charmonium state. The statistical significance of the observed signal of $\\Upsilon(1S) \\to \\gamma \\chi_{c1}$ is 6.3 standard deviations including systematics. The branching fraction is calculated to be Br($\\Upsilon(1S) \\to \\gamma \\chi_{c1}$) = (4.7^{+2.4}_{-1.8} (stat) ^{+0.4}_{-0.5} (sys)) * 10^{-5}. We also searched for $\\Upsilon(1S)$ radiative decays into $\\chi_{c0,2}$ and $\\eta_c(1S,2S)$ and set upper limits on their branching fractions. These results are obtained from a 24.9 fb^{-1} data sample collected w","authors_text":"A. Bobrov, A. Chen, A. Garmash, A. Giri, A. Ishikawa, A. Rostomyan, A. Vossen, B. Bhuyan, B. G. Cheon, B. G. Fulsom, B. Golob, B. Wang, C. Beleno, C. H. Wang, C. MacQueen, C. P. Shen, C. Schwanda, C. W. Park, C. Z. Yuan, D. Cervenkov, D. Cinabro, D. Epifanov, D. Joffe, D. M. Asner, D. Matvienko, D. Sahoo, D. Y. Kim, E. Nakano, E. Prencipe, E. Solovieva, E. Won, F. Di Capua, F. Tenchini, G. B. Mohanty, G. Bonvicini, G. Karyan, G. Pakhlova, G. Russo, G. Schnell, G. Varner, H. Aihara, H. B. Jeon, H. E. Cho, H. Hayashii, H. Kichimi, H. Miyata, H. Ono, H. Park, H. Ye, I. Adachi, I. Badhrees, I. S. Lee, J. Bennett, J. Biswal, J. E. Fast, J.-G. Shiu, J. H. Yin, J. Libby, J. Schueler, J. Yelton, K. Chilikin, K. Cho, K. Hayasaka, K. Inami, K. Kinoshita, K. K. Joo, K. Lieret, K. Miyabayashi, K. Nishimura, K. Senyo, K. Tanida, K. T. Kim, K. Trabelsi, L. Cao, L. E. Piilonen, L. Li Gioi, M. Bracko, M. Campajola, M. E. Sevior, M. Iwasaki, M. Masuda, M. Merola, M. Nakao, M. Nayak, M. Ritter, M. Staric, M. Takizawa, M. T. Prim, M. Uchida, M.-Z. Wang, N. Gabyshev, N. K. Nisar, N. Rout, O. Grzymkowska, O. Hartbrich, O. Schneider, P. Behera, P. Goldenzweig, P. Katrenko, P. Kodys, P. Lewis, P. Oskin, P. Pakhlov, P. Urquijo, P. Wang, R. Garg, R. Itoh, R. Kroeger, R. Mizuk, R. Mussa, R. Pestotnik, R. van Tonder, S. Al Said, S. Bahinipati, S. B. Yang, S. Choudhury, S. C. Lee, S. Cunliffe, S. Di Carlo, S. Eidelman, S. H. Kim, S.-H. Park, S. Jia, S.-K. Choi, S. Korpar, S. Nishida, S. Pardi, S. Paul, S. Sandilya, S. Uehara, S. Uno, T. Aushev, T. Iijima, T. J. Moon, T. K. Pedlar, T. Kuhr, T. Matsuda, T. Mori, T. Nakano, T. Pang, T. Sanuki, T. Sumiyoshi, T. Uglov, T. V. Dong, U. Tamponi, V. Bhardwaj, V. Chekelian, V. Gaur, V. Popov, V. Savinov, V. Zhilich, V. Zhukova, W.-S. Hou, W. Sutcliffe, W. W. Jacobs, X. L. Wang, Y. B. Li, Y. Choi, Y. Iwasaki, Y. Jin, Y. Onuki, Y. Sakai, Y. Seino, Y. Unno, Y. Usov, Y. Yusa, Z. Dolezal, Z. P. Zhang, Z. S. Stottler","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ex","submitted_at":"2019-10-24T05:10:00Z","title":"Observation of the radiative decays of $\\Upsilon(1S)$ to $\\chi_{c1}$"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1910.10915","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":"sha256:07cfe6368fe6af081c98fc64f3baa6da9f53b7a1eec89ed299ede5da236bfb71","target":"record","created_at":"2026-07-05T00:51:33Z","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":"e9d8998e8e063abaab582bf649e6f0ab83e031669d8bb97471e8359f534b0114","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ex","submitted_at":"2019-10-24T05:10:00Z","title_canon_sha256":"2fbaa0fe0ef836276210e718be63178ad3b746a2f8aff05cd3498e415f533494"},"schema_version":"1.0","source":{"id":"1910.10915","kind":"arxiv","version":1}},"canonical_sha256":"40b75a29f1e0832098d6bb80de828485ca17e564f8aaa82ac44e74f381b5e385","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"40b75a29f1e0832098d6bb80de828485ca17e564f8aaa82ac44e74f381b5e385","first_computed_at":"2026-07-05T00:51:33.375184Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T00:51:33.375184Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"Tm37YMKBUuhdU/QZCQ7uawk3jO82lw80X0Yc2aWUwsnNbEsDuA8VATqKEtF/A8kVwYXJFRzYOVHQ9YePYiYkDg==","signature_status":"signed_v1","signed_at":"2026-07-05T00:51:33.375637Z","signed_message":"canonical_sha256_bytes"},"source_id":"1910.10915","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:07cfe6368fe6af081c98fc64f3baa6da9f53b7a1eec89ed299ede5da236bfb71","sha256:7206ffa828c487bba981a44267a175203fc5e10ec0be6163e5e7e18a39dcdf2a"],"state_sha256":"44b67c8cfd43bfe5b7d57171e9978f71fca8c5717922fc503a62076d01841b7d"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"HEDfWo/hFCIW7egfJVaLO3fOCavE1tp+gy8dT0x62uMwMeDtdtqt2ZmwbAjGMASWtMPnhnpLHoh7UkKBwg61AQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-14T20:19:46.991930Z","bundle_sha256":"b3e9d4621a4ec4df26701328b253fc5c5d83e7806bf3fdff6b409683b9d2f9fc"}}