{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2019:NQCOUJWDI62UDRZM2IIXT6MP63","short_pith_number":"pith:NQCOUJWD","canonical_record":{"source":{"id":"1909.02726","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ex","submitted_at":"2019-09-06T06:05:36Z","cross_cats_sorted":["nucl-ex"],"title_canon_sha256":"3beb7ac7bcc737702040a891de2efc243b9a78e8ab353d0097d0af63cc5c689e","abstract_canon_sha256":"41fa1020bc85705e045adbf6c7a8e9c6d5b4cc4fd1068a9f492c805720020331"},"schema_version":"1.0"},"canonical_sha256":"6c04ea26c347b541c72cd21179f98ff6d56a1ee85e4bd5a69d6b059f26ad2786","source":{"kind":"arxiv","id":"1909.02726","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1909.02726","created_at":"2026-07-05T00:08:08Z"},{"alias_kind":"arxiv_version","alias_value":"1909.02726v1","created_at":"2026-07-05T00:08:08Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1909.02726","created_at":"2026-07-05T00:08:08Z"},{"alias_kind":"pith_short_12","alias_value":"NQCOUJWDI62U","created_at":"2026-07-05T00:08:08Z"},{"alias_kind":"pith_short_16","alias_value":"NQCOUJWDI62UDRZM","created_at":"2026-07-05T00:08:08Z"},{"alias_kind":"pith_short_8","alias_value":"NQCOUJWD","created_at":"2026-07-05T00:08:08Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2019:NQCOUJWDI62UDRZM2IIXT6MP63","target":"record","payload":{"canonical_record":{"source":{"id":"1909.02726","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ex","submitted_at":"2019-09-06T06:05:36Z","cross_cats_sorted":["nucl-ex"],"title_canon_sha256":"3beb7ac7bcc737702040a891de2efc243b9a78e8ab353d0097d0af63cc5c689e","abstract_canon_sha256":"41fa1020bc85705e045adbf6c7a8e9c6d5b4cc4fd1068a9f492c805720020331"},"schema_version":"1.0"},"canonical_sha256":"6c04ea26c347b541c72cd21179f98ff6d56a1ee85e4bd5a69d6b059f26ad2786","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T00:08:08.097673Z","signature_b64":"cWAeSzBR323rJAYx9joYZzi/1wW/2duFXQrTWGgSzEInP3ntgfWd8gxfbeUevGojKVWUP4S5kKtLFNrPNM7GAw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"6c04ea26c347b541c72cd21179f98ff6d56a1ee85e4bd5a69d6b059f26ad2786","last_reissued_at":"2026-07-05T00:08:08.097159Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T00:08:08.097159Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1909.02726","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":"2026-07-05T00:08:08Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"ES7jLZCkLwllShWk0F1c6DNsz3AVRVyStT/L/4Rfjwvgo2L6EXxn4VsXGYc1SHCtxyQMc96Q6psa9uGHRj1ODQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-23T08:07:41.483832Z"},"content_sha256":"b374e6782ae4809eb90681990b611987b3e01aae192128a47d50653d64b80d90","schema_version":"1.0","event_id":"sha256:b374e6782ae4809eb90681990b611987b3e01aae192128a47d50653d64b80d90"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2019:NQCOUJWDI62UDRZM2IIXT6MP63","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Probing Majorana neutrinos with double-$\\beta$ decay","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["nucl-ex"],"primary_cat":"hep-ex","authors_text":"A.A. Vasenko, A. Bettini, A. Caldwell, A. Chernogorov, A. Domula, A. Gangapshev, A. Garfagnini, A. Hegai, A.J. Zsigmond, A. Kirsch, A. Kish, A. Klimenko, A.-K. Sch\\\"utz, A. Lazzaro, A. Lubashevskiy, A.M. Bakalyarov, A. Pullia, A. Smolnikov, A. Veresnikova, A. Wegmann, A. Zschocke, B. Lubsandorzhiev, B. Majorovits, B. Schneider, B. Schwingenheuer, C. Bauer, C. Cattadori, C. Macolino, C. Ransom, C. Sada, C. Schmitt, C. Wiesinger, D. Borowicz, D. Stukov, D. Zinatulina, E. Bellotti, E. Doroshkevich, E. Sala, E. Shevchik, E.V. Demidova, E. Yanovich, F. Salamida, GERDA Collaboration: M. Agostini, G. Lutter, G. Zuzel, H. Simgen, I. Barabanov, I. Lippi, I. Nemchenok, I. V. Kirpichnikov, I. Zhitnikov, J. Hakenm\\\"uller, J. Janicsk\\'o Cs\\'athy, J. Jochum, K. Gusev, K. Panas, K. Pelczar, K.T. Kn\\\"opfle, K. von Sturm, K. Zuber, L. Baudis, L. Bezrukov, L. Pandola, L. Pertoldi, L. Stanco, L. Vanhoefer, L.V. Inzhechik, M. Balata, M. Fomina, M. Giordano, M. Heisel, M. Hult, M. Junker, M. Laubenstein, M. Lindner, M. Miloradovic, M. Misiaszek, M. Schwarz, M. Shirchenko, M. Wojcik, N. Di Marco, N. Rumyantseva, O. Kochetov, O. Schulz, O. Selivanenko, P. Grabmayr, P. Krause, P. Moseev, P. Piseri, R. Brugnera, R. Falkenstein, R. Hiller, R. Knei{\\ss}l, R. Mingazheva, S. Belogurov, S. Hemmer, S. Riboldi, S. Sch\\\"onert, S.V. Zhukov, T. Comellato, T. Kihm, T. Wester, V. Brudanin, V. D'Andrea, V. Egorov, V. Gurentsov, V. Kazalov, V.N. Kornoukhov, V.V. Kuzminov, V. Wagner, W. Hofmann, W. Maneschg, Y. Kerma\\\"idic","submitted_at":"2019-09-06T06:05:36Z","abstract_excerpt":"A discovery that neutrinos are not the usual Dirac but Majorana fermions, i.e. identical to their antiparticles, would be a manifestation of new physics with profound implications for particle physics and cosmology. Majorana neutrinos would generate neutrinoless double-$\\beta$ ($0\\nu\\beta\\beta$) decay, a matter-creating process without the balancing emission of antimatter. So far, 0$\\nu\\beta\\beta$ decay has eluded detection. The GERDA collaboration searches for the $0\\nu\\beta\\beta$ decay of $^{76}$Ge by operating bare germanium detectors in an active liquid argon shield. With a total exposure "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1909.02726","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/1909.02726/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":"2026-07-05T00:08:08Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"UkerK+m0aOHDflQY7/xNdRjuFmwDAW7TYxgZAGoLMjpDnMdAuu7HaH2jUDBC2smoqWw+TX1pQt1fxIAeTtEvAQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-23T08:07:41.484217Z"},"content_sha256":"7c0faafdacd5e0b81d57828667049c642964e47fe8b83aed1206f61bc9baa2f9","schema_version":"1.0","event_id":"sha256:7c0faafdacd5e0b81d57828667049c642964e47fe8b83aed1206f61bc9baa2f9"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/NQCOUJWDI62UDRZM2IIXT6MP63/bundle.json","state_url":"https://pith.science/pith/NQCOUJWDI62UDRZM2IIXT6MP63/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/NQCOUJWDI62UDRZM2IIXT6MP63/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":"2026-07-23T08:07:41Z","links":{"resolver":"https://pith.science/pith/NQCOUJWDI62UDRZM2IIXT6MP63","bundle":"https://pith.science/pith/NQCOUJWDI62UDRZM2IIXT6MP63/bundle.json","state":"https://pith.science/pith/NQCOUJWDI62UDRZM2IIXT6MP63/state.json","well_known_bundle":"https://pith.science/.well-known/pith/NQCOUJWDI62UDRZM2IIXT6MP63/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2019:NQCOUJWDI62UDRZM2IIXT6MP63","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":"41fa1020bc85705e045adbf6c7a8e9c6d5b4cc4fd1068a9f492c805720020331","cross_cats_sorted":["nucl-ex"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ex","submitted_at":"2019-09-06T06:05:36Z","title_canon_sha256":"3beb7ac7bcc737702040a891de2efc243b9a78e8ab353d0097d0af63cc5c689e"},"schema_version":"1.0","source":{"id":"1909.02726","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1909.02726","created_at":"2026-07-05T00:08:08Z"},{"alias_kind":"arxiv_version","alias_value":"1909.02726v1","created_at":"2026-07-05T00:08:08Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1909.02726","created_at":"2026-07-05T00:08:08Z"},{"alias_kind":"pith_short_12","alias_value":"NQCOUJWDI62U","created_at":"2026-07-05T00:08:08Z"},{"alias_kind":"pith_short_16","alias_value":"NQCOUJWDI62UDRZM","created_at":"2026-07-05T00:08:08Z"},{"alias_kind":"pith_short_8","alias_value":"NQCOUJWD","created_at":"2026-07-05T00:08:08Z"}],"graph_snapshots":[{"event_id":"sha256:7c0faafdacd5e0b81d57828667049c642964e47fe8b83aed1206f61bc9baa2f9","target":"graph","created_at":"2026-07-05T00:08:08Z","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/1909.02726/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"A discovery that neutrinos are not the usual Dirac but Majorana fermions, i.e. identical to their antiparticles, would be a manifestation of new physics with profound implications for particle physics and cosmology. Majorana neutrinos would generate neutrinoless double-$\\beta$ ($0\\nu\\beta\\beta$) decay, a matter-creating process without the balancing emission of antimatter. So far, 0$\\nu\\beta\\beta$ decay has eluded detection. The GERDA collaboration searches for the $0\\nu\\beta\\beta$ decay of $^{76}$Ge by operating bare germanium detectors in an active liquid argon shield. With a total exposure ","authors_text":"A.A. Vasenko, A. Bettini, A. Caldwell, A. Chernogorov, A. Domula, A. Gangapshev, A. Garfagnini, A. Hegai, A.J. Zsigmond, A. Kirsch, A. Kish, A. Klimenko, A.-K. Sch\\\"utz, A. Lazzaro, A. Lubashevskiy, A.M. Bakalyarov, A. Pullia, A. Smolnikov, A. Veresnikova, A. Wegmann, A. Zschocke, B. Lubsandorzhiev, B. Majorovits, B. Schneider, B. Schwingenheuer, C. Bauer, C. Cattadori, C. Macolino, C. Ransom, C. Sada, C. Schmitt, C. Wiesinger, D. Borowicz, D. Stukov, D. Zinatulina, E. Bellotti, E. Doroshkevich, E. Sala, E. Shevchik, E.V. Demidova, E. Yanovich, F. Salamida, GERDA Collaboration: M. Agostini, G. Lutter, G. Zuzel, H. Simgen, I. Barabanov, I. Lippi, I. Nemchenok, I. V. Kirpichnikov, I. Zhitnikov, J. Hakenm\\\"uller, J. Janicsk\\'o Cs\\'athy, J. Jochum, K. Gusev, K. Panas, K. Pelczar, K.T. Kn\\\"opfle, K. von Sturm, K. Zuber, L. Baudis, L. Bezrukov, L. Pandola, L. Pertoldi, L. Stanco, L. Vanhoefer, L.V. Inzhechik, M. Balata, M. Fomina, M. Giordano, M. Heisel, M. Hult, M. Junker, M. Laubenstein, M. Lindner, M. Miloradovic, M. Misiaszek, M. Schwarz, M. Shirchenko, M. Wojcik, N. Di Marco, N. Rumyantseva, O. Kochetov, O. Schulz, O. Selivanenko, P. Grabmayr, P. Krause, P. Moseev, P. Piseri, R. Brugnera, R. Falkenstein, R. Hiller, R. Knei{\\ss}l, R. Mingazheva, S. Belogurov, S. Hemmer, S. Riboldi, S. Sch\\\"onert, S.V. Zhukov, T. Comellato, T. Kihm, T. Wester, V. Brudanin, V. D'Andrea, V. Egorov, V. Gurentsov, V. Kazalov, V.N. Kornoukhov, V.V. Kuzminov, V. Wagner, W. Hofmann, W. Maneschg, Y. Kerma\\\"idic","cross_cats":["nucl-ex"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ex","submitted_at":"2019-09-06T06:05:36Z","title":"Probing Majorana neutrinos with double-$\\beta$ decay"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1909.02726","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:b374e6782ae4809eb90681990b611987b3e01aae192128a47d50653d64b80d90","target":"record","created_at":"2026-07-05T00:08:08Z","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":"41fa1020bc85705e045adbf6c7a8e9c6d5b4cc4fd1068a9f492c805720020331","cross_cats_sorted":["nucl-ex"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ex","submitted_at":"2019-09-06T06:05:36Z","title_canon_sha256":"3beb7ac7bcc737702040a891de2efc243b9a78e8ab353d0097d0af63cc5c689e"},"schema_version":"1.0","source":{"id":"1909.02726","kind":"arxiv","version":1}},"canonical_sha256":"6c04ea26c347b541c72cd21179f98ff6d56a1ee85e4bd5a69d6b059f26ad2786","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"6c04ea26c347b541c72cd21179f98ff6d56a1ee85e4bd5a69d6b059f26ad2786","first_computed_at":"2026-07-05T00:08:08.097159Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T00:08:08.097159Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"cWAeSzBR323rJAYx9joYZzi/1wW/2duFXQrTWGgSzEInP3ntgfWd8gxfbeUevGojKVWUP4S5kKtLFNrPNM7GAw==","signature_status":"signed_v1","signed_at":"2026-07-05T00:08:08.097673Z","signed_message":"canonical_sha256_bytes"},"source_id":"1909.02726","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:b374e6782ae4809eb90681990b611987b3e01aae192128a47d50653d64b80d90","sha256:7c0faafdacd5e0b81d57828667049c642964e47fe8b83aed1206f61bc9baa2f9"],"state_sha256":"02f0c06b709bea2c2646aba0a3fd611daf5d0190448c9a89d8d1ab75454a61c1"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"j8BL/hSYCvifvWRUrjnuDCWk0iZGIaosRq5EjKUeB9wmly3ALyRgTyIiEkkFjeWAmukdLTHnhEvcxSeZDyGzAQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-07-23T08:07:41.486810Z","bundle_sha256":"015cbb213dc1b7f6c9cbce1483cef3095812dcc39bf4cf9a13b3a5baded9b372"}}