{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2018:N2QYOWYKRUCLDGYNGR2ZZNGLHI","short_pith_number":"pith:N2QYOWYK","canonical_record":{"source":{"id":"1802.04167","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.ins-det","submitted_at":"2018-02-12T16:26:19Z","cross_cats_sorted":["nucl-ex"],"title_canon_sha256":"713d5bce7e26bd869deaf78ecf445784deac8f739009cb3b99d1575e42b48d40","abstract_canon_sha256":"f253b143c9da840dd1995049f288f80a1f0df8a24fce212cfe849c4dbfca59a1"},"schema_version":"1.0"},"canonical_sha256":"6ea1875b0a8d04b19b0d34759cb4cb3a2cb81da32ae0dcc49536a53b4d09de18","source":{"kind":"arxiv","id":"1802.04167","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1802.04167","created_at":"2026-05-18T00:11:17Z"},{"alias_kind":"arxiv_version","alias_value":"1802.04167v2","created_at":"2026-05-18T00:11:17Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1802.04167","created_at":"2026-05-18T00:11:17Z"},{"alias_kind":"pith_short_12","alias_value":"N2QYOWYKRUCL","created_at":"2026-05-18T12:32:40Z"},{"alias_kind":"pith_short_16","alias_value":"N2QYOWYKRUCLDGYN","created_at":"2026-05-18T12:32:40Z"},{"alias_kind":"pith_short_8","alias_value":"N2QYOWYK","created_at":"2026-05-18T12:32:40Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2018:N2QYOWYKRUCLDGYNGR2ZZNGLHI","target":"record","payload":{"canonical_record":{"source":{"id":"1802.04167","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.ins-det","submitted_at":"2018-02-12T16:26:19Z","cross_cats_sorted":["nucl-ex"],"title_canon_sha256":"713d5bce7e26bd869deaf78ecf445784deac8f739009cb3b99d1575e42b48d40","abstract_canon_sha256":"f253b143c9da840dd1995049f288f80a1f0df8a24fce212cfe849c4dbfca59a1"},"schema_version":"1.0"},"canonical_sha256":"6ea1875b0a8d04b19b0d34759cb4cb3a2cb81da32ae0dcc49536a53b4d09de18","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:11:17.941658Z","signature_b64":"wgx8z2o/IOI3NuV84JEvSPjWfT/5qmjT/seV0EDA7kCbh84wgwNErJjQ0WOtLkY64Zc3sr+12mPTAkYAyV2+CQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"6ea1875b0a8d04b19b0d34759cb4cb3a2cb81da32ae0dcc49536a53b4d09de18","last_reissued_at":"2026-05-18T00:11:17.941124Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:11:17.941124Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1802.04167","source_version":2,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T00:11:17Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"t8h6qpMgwFLTwDSCZRz2tho6X2JSJU7H0lix+w0y7m3V/MeC/Y3kAxWQ5kVJ/U7g97oomdfAjXP3cRzyX4n1AA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-04T11:06:16.577358Z"},"content_sha256":"92f99b6aaf9a0cafcc8339e3941ddec5073ba3261508432ae643439d8cccff1e","schema_version":"1.0","event_id":"sha256:92f99b6aaf9a0cafcc8339e3941ddec5073ba3261508432ae643439d8cccff1e"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2018:N2QYOWYKRUCLDGYNGR2ZZNGLHI","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"First transmission of electrons and ions through the KATRIN beamline","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["nucl-ex"],"primary_cat":"physics.ins-det","authors_text":"A. Beglarian, A. Berlev, A. Fulst, A. Gonzalez Ure\\~na, A. Huber, A. Jansen, A. Kopmann, A. Koval\\'ik, A. Lokhov, A. Marsteller, A. Off, A. Osipowicz, A. Pollithy, A. P. Vizcaya Hern\\'andez, A. Saenz, A. W. P. Poon, B. Bornschein, B. Krasch, B. Monreal, C. Rodenbeck, C. R\\\"ottele, C. Weinheimer, C. Weiss, D. Eversheim, D. Hilk, D. Hillesheimer, D. S. Parno, D. V\\'enos, E. Ellinger, E. L. Martin, E. Otten, F. Edzards, F. Friedel, F. Gl\\\"uck, F. Harms, F. Heizmann, F. M. Fr\\\"ankle, F. Priester, F. Roccati, G. B. Franklin, G. Drexlin, H. H. Telle, H. Neumann, H. Seitz-Moskaliuk, H.-W. Ortjohann, I. Tkachev, J. A. Formaggio, J. Behrens, J. F. Wilkerson, J. Kellerer, J. Letnev, J. Sentkerestiov\\'a, J. Wendel, J. Wolf, K. Blaum, K. Eitel, K. Helbing, K. Schl\\\"osser, K. Sch\\\"onung, K. Valerius, L. A. Thorne, L. Bornschein, L. Kippenbrock, L. Kuckert, L. Schimpf, M. A. Howe, M. Arenz, M. Beck, M. Deffert, M. Erhard, M. Fedkevych, M. Hackenjos, M. Kleesiek, M. Klein, M. Korzeczek, M. Kraus, M. Machatschek, M. R\\\"ollig, M. Ry\\v{s}av\\'y, M. Schl\\\"osser, M. Schrank, M. Slez\\'ak, M. Steidl, M. Sturm, M. Suchopar, M. Suesser, M. Weber, N. Buzinsky, N. Hau{\\ss}mann, N. Kernert, N. Steinbrink, N. Titov, N. Trost, O. Dragoun, O. Lebeda, O. Rest, P. C.-O. Ranitzsch, P. J. Doe, R. Engel, R. G. H. Robertson, R. Gr\\\"ossle, R. Gumbsheimer, R. Sack, R. Vianden, S. Chilingaryan, S. Dyba, S. Enomoto, S. Fischer, S. Grohmann, S. Hickford, S. Mertens, S. Mirz, S. Niemes, S. Welte, S. W\\\"ustling, S. Zadoroghny, T. Bergmann, T. Bode, T. Brunst, T. Lasserre, T. Th\\\"ummler, U. Besserer, U. Naumann, V. Hannen, V. Sibille, W. Gil, W. Herz, W.-J. Baek, W. Q. Choi","submitted_at":"2018-02-12T16:26:19Z","abstract_excerpt":"The Karlsruhe Tritium Neutrino (KATRIN) experiment is a large-scale effort to probe the absolute neutrino mass scale with a sensitivity of 0.2 eV (90% confidence level), via a precise measurement of the endpoint spectrum of tritium beta decay. This work documents several KATRIN commissioning milestones: the complete assembly of the experimental beamline, the successful transmission of electrons from three sources through the beamline to the primary detector, and tests of ion transport and retention. In the First Light commissioning campaign of Autumn 2016, photoelectrons were generated at the "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1802.04167","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":""},"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":"2026-05-18T00:11:17Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"YQ04XxvDwIGdIy8YQO2EhN8SGCIDxHg6f/cB82VSH+bmsg/yD+gNSKr1nxGdCvc1IgVjqhDVhJ0EDY6DMLbhBw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-04T11:06:16.577735Z"},"content_sha256":"f3b372a257523e91d69c62e83c8001e00f67b3747992788ec8114f29be8c1265","schema_version":"1.0","event_id":"sha256:f3b372a257523e91d69c62e83c8001e00f67b3747992788ec8114f29be8c1265"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/N2QYOWYKRUCLDGYNGR2ZZNGLHI/bundle.json","state_url":"https://pith.science/pith/N2QYOWYKRUCLDGYNGR2ZZNGLHI/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/N2QYOWYKRUCLDGYNGR2ZZNGLHI/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":"2026-06-04T11:06:16Z","links":{"resolver":"https://pith.science/pith/N2QYOWYKRUCLDGYNGR2ZZNGLHI","bundle":"https://pith.science/pith/N2QYOWYKRUCLDGYNGR2ZZNGLHI/bundle.json","state":"https://pith.science/pith/N2QYOWYKRUCLDGYNGR2ZZNGLHI/state.json","well_known_bundle":"https://pith.science/.well-known/pith/N2QYOWYKRUCLDGYNGR2ZZNGLHI/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2018:N2QYOWYKRUCLDGYNGR2ZZNGLHI","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":"f253b143c9da840dd1995049f288f80a1f0df8a24fce212cfe849c4dbfca59a1","cross_cats_sorted":["nucl-ex"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.ins-det","submitted_at":"2018-02-12T16:26:19Z","title_canon_sha256":"713d5bce7e26bd869deaf78ecf445784deac8f739009cb3b99d1575e42b48d40"},"schema_version":"1.0","source":{"id":"1802.04167","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1802.04167","created_at":"2026-05-18T00:11:17Z"},{"alias_kind":"arxiv_version","alias_value":"1802.04167v2","created_at":"2026-05-18T00:11:17Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1802.04167","created_at":"2026-05-18T00:11:17Z"},{"alias_kind":"pith_short_12","alias_value":"N2QYOWYKRUCL","created_at":"2026-05-18T12:32:40Z"},{"alias_kind":"pith_short_16","alias_value":"N2QYOWYKRUCLDGYN","created_at":"2026-05-18T12:32:40Z"},{"alias_kind":"pith_short_8","alias_value":"N2QYOWYK","created_at":"2026-05-18T12:32:40Z"}],"graph_snapshots":[{"event_id":"sha256:f3b372a257523e91d69c62e83c8001e00f67b3747992788ec8114f29be8c1265","target":"graph","created_at":"2026-05-18T00:11:17Z","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":"The Karlsruhe Tritium Neutrino (KATRIN) experiment is a large-scale effort to probe the absolute neutrino mass scale with a sensitivity of 0.2 eV (90% confidence level), via a precise measurement of the endpoint spectrum of tritium beta decay. This work documents several KATRIN commissioning milestones: the complete assembly of the experimental beamline, the successful transmission of electrons from three sources through the beamline to the primary detector, and tests of ion transport and retention. In the First Light commissioning campaign of Autumn 2016, photoelectrons were generated at the ","authors_text":"A. Beglarian, A. Berlev, A. Fulst, A. Gonzalez Ure\\~na, A. Huber, A. Jansen, A. Kopmann, A. Koval\\'ik, A. Lokhov, A. Marsteller, A. Off, A. Osipowicz, A. Pollithy, A. P. Vizcaya Hern\\'andez, A. Saenz, A. W. P. Poon, B. Bornschein, B. Krasch, B. Monreal, C. Rodenbeck, C. R\\\"ottele, C. Weinheimer, C. Weiss, D. Eversheim, D. Hilk, D. Hillesheimer, D. S. Parno, D. V\\'enos, E. Ellinger, E. L. Martin, E. Otten, F. Edzards, F. Friedel, F. Gl\\\"uck, F. Harms, F. Heizmann, F. M. Fr\\\"ankle, F. Priester, F. Roccati, G. B. Franklin, G. Drexlin, H. H. Telle, H. Neumann, H. Seitz-Moskaliuk, H.-W. Ortjohann, I. Tkachev, J. A. Formaggio, J. Behrens, J. F. Wilkerson, J. Kellerer, J. Letnev, J. Sentkerestiov\\'a, J. Wendel, J. Wolf, K. Blaum, K. Eitel, K. Helbing, K. Schl\\\"osser, K. Sch\\\"onung, K. Valerius, L. A. Thorne, L. Bornschein, L. Kippenbrock, L. Kuckert, L. Schimpf, M. A. Howe, M. Arenz, M. Beck, M. Deffert, M. Erhard, M. Fedkevych, M. Hackenjos, M. Kleesiek, M. Klein, M. Korzeczek, M. Kraus, M. Machatschek, M. R\\\"ollig, M. Ry\\v{s}av\\'y, M. Schl\\\"osser, M. Schrank, M. Slez\\'ak, M. Steidl, M. Sturm, M. Suchopar, M. Suesser, M. Weber, N. Buzinsky, N. Hau{\\ss}mann, N. Kernert, N. Steinbrink, N. Titov, N. Trost, O. Dragoun, O. Lebeda, O. Rest, P. C.-O. Ranitzsch, P. J. Doe, R. Engel, R. G. H. Robertson, R. Gr\\\"ossle, R. Gumbsheimer, R. Sack, R. Vianden, S. Chilingaryan, S. Dyba, S. Enomoto, S. Fischer, S. Grohmann, S. Hickford, S. Mertens, S. Mirz, S. Niemes, S. Welte, S. W\\\"ustling, S. Zadoroghny, T. Bergmann, T. Bode, T. Brunst, T. Lasserre, T. Th\\\"ummler, U. Besserer, U. Naumann, V. Hannen, V. Sibille, W. Gil, W. Herz, W.-J. Baek, W. Q. Choi","cross_cats":["nucl-ex"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.ins-det","submitted_at":"2018-02-12T16:26:19Z","title":"First transmission of electrons and ions through the KATRIN beamline"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1802.04167","kind":"arxiv","version":2},"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":"sha256:92f99b6aaf9a0cafcc8339e3941ddec5073ba3261508432ae643439d8cccff1e","target":"record","created_at":"2026-05-18T00:11:17Z","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":"f253b143c9da840dd1995049f288f80a1f0df8a24fce212cfe849c4dbfca59a1","cross_cats_sorted":["nucl-ex"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.ins-det","submitted_at":"2018-02-12T16:26:19Z","title_canon_sha256":"713d5bce7e26bd869deaf78ecf445784deac8f739009cb3b99d1575e42b48d40"},"schema_version":"1.0","source":{"id":"1802.04167","kind":"arxiv","version":2}},"canonical_sha256":"6ea1875b0a8d04b19b0d34759cb4cb3a2cb81da32ae0dcc49536a53b4d09de18","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"6ea1875b0a8d04b19b0d34759cb4cb3a2cb81da32ae0dcc49536a53b4d09de18","first_computed_at":"2026-05-18T00:11:17.941124Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:11:17.941124Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"wgx8z2o/IOI3NuV84JEvSPjWfT/5qmjT/seV0EDA7kCbh84wgwNErJjQ0WOtLkY64Zc3sr+12mPTAkYAyV2+CQ==","signature_status":"signed_v1","signed_at":"2026-05-18T00:11:17.941658Z","signed_message":"canonical_sha256_bytes"},"source_id":"1802.04167","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:92f99b6aaf9a0cafcc8339e3941ddec5073ba3261508432ae643439d8cccff1e","sha256:f3b372a257523e91d69c62e83c8001e00f67b3747992788ec8114f29be8c1265"],"state_sha256":"15b584328ca848f31c769e7e0de3690fd8462483bcef4ac1151b29bf3bce5caf"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"drVC7CfUw/l+Y080Cys6NqAZpoXf6KV7QzBJnhD1z+9UEsg5Av6xVRiIuoiahlbYXQpgRuXSC6UT0FtsxQ5oDg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-04T11:06:16.579842Z","bundle_sha256":"fc7b82156b2b19733bb693183e1532b2f6cc5c2d3a381fbf15c80d6f6856026c"}}