{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2020:JKN6U2ZWFDXTT5JBFVOJP2ZEHL","short_pith_number":"pith:JKN6U2ZW","canonical_record":{"source":{"id":"2007.11293","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ex","submitted_at":"2020-07-22T09:27:24Z","cross_cats_sorted":["nucl-ex"],"title_canon_sha256":"85ed60312b5e833a296eabb58eee1114e27568c17af0df5c5de208ec788a7906","abstract_canon_sha256":"0610fdbe88deb7adb21c257245c3a168626dc1879b4403fd98faf1cb1b458564"},"schema_version":"1.0"},"canonical_sha256":"4a9bea6b3628ef39f5212d5c97eb243ac06f905f2e41617e51d0b1a0b7c49c54","source":{"kind":"arxiv","id":"2007.11293","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2007.11293","created_at":"2026-07-05T02:09:43Z"},{"alias_kind":"arxiv_version","alias_value":"2007.11293v2","created_at":"2026-07-05T02:09:43Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2007.11293","created_at":"2026-07-05T02:09:43Z"},{"alias_kind":"pith_short_12","alias_value":"JKN6U2ZWFDXT","created_at":"2026-07-05T02:09:43Z"},{"alias_kind":"pith_short_16","alias_value":"JKN6U2ZWFDXTT5JB","created_at":"2026-07-05T02:09:43Z"},{"alias_kind":"pith_short_8","alias_value":"JKN6U2ZW","created_at":"2026-07-05T02:09:43Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2020:JKN6U2ZWFDXTT5JBFVOJP2ZEHL","target":"record","payload":{"canonical_record":{"source":{"id":"2007.11293","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ex","submitted_at":"2020-07-22T09:27:24Z","cross_cats_sorted":["nucl-ex"],"title_canon_sha256":"85ed60312b5e833a296eabb58eee1114e27568c17af0df5c5de208ec788a7906","abstract_canon_sha256":"0610fdbe88deb7adb21c257245c3a168626dc1879b4403fd98faf1cb1b458564"},"schema_version":"1.0"},"canonical_sha256":"4a9bea6b3628ef39f5212d5c97eb243ac06f905f2e41617e51d0b1a0b7c49c54","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T02:09:43.454556Z","signature_b64":"zciAlu9Dj39ZdKCXiQ6CNoeyIV6MM2UVQV4eDf+M3urWheCGv+XvSK9yHlBX4JQCljni+ywZK0PpbK5bnYfdDQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"4a9bea6b3628ef39f5212d5c97eb243ac06f905f2e41617e51d0b1a0b7c49c54","last_reissued_at":"2026-07-05T02:09:43.453883Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T02:09:43.453883Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2007.11293","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":"2026-07-05T02:09:43Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"IwG0kG9cs9KPwE4LjxfKvpRbO+LaU0F6m6CecCpxW65GVXEE0IywXO47osg3l+0ECd+gU01CaI0iLM5T4W6lCw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-14T03:02:21.976431Z"},"content_sha256":"1d82e0674b675429e10e76bff119d6590d4dec05e2e7d4806ac9da257fe3e620","schema_version":"1.0","event_id":"sha256:1d82e0674b675429e10e76bff119d6590d4dec05e2e7d4806ac9da257fe3e620"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2020:JKN6U2ZWFDXTT5JBFVOJP2ZEHL","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Neutron lifetime measurement with pulsed cold neutrons","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["nucl-ex"],"primary_cat":"hep-ex","authors_text":"A. Morishita, D. Sekiba, G. Ichikawa, H. M. Shimizu, H. Oide, H. Okabe, H. Otono, H. Sumino, H. Uehara, J. Koga, K. Hirota, K. Mishima, K. Morikawa, K. Yano, M. Kitaguchi, M. Yokohashi, N. Nagakura, N. Sumi, R. Kitahara, S. Ieki, S. Yamashita, T. Ino, T. Mogi, T. Shima, T. Tomita, T. Yamada, T. Yoshioka, Y. Iwashita, Y. Seki","submitted_at":"2020-07-22T09:27:24Z","abstract_excerpt":"The neutron lifetime has been measured by comparing the decay rate with the reaction rate of $^3$He nuclei of a pulsed neutron beam from the spallation neutron source at the Japan Proton Accelerator Research Complex (J-PARC). The decay rate and the reaction rate were determined by simultaneously detecting electrons from the neutron decay and protons from the $^3$He(n,p)$^3$H reaction using a gas chamber of which working gas contains diluted $^3$He. The measured neutron lifetime was $898\\,\\pm\\,10\\,_{\\rm stat}\\,^{+15}_{-18}\\,_{\\rm sys}\\,$s."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2007.11293","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2007.11293/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":"2026-07-05T02:09:43Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"JS8vLby6p4TgN4/YZW8h/aF+lYu801u8JprI55XXZtKBT1oRr1cjq1uEwaDKh8r9WzTNa5k0yie+fy+UiIGDDQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-14T03:02:21.976956Z"},"content_sha256":"f1528d18b4815d81ce61fbc879ee0b69302b37aaee4bb5570453308f70579911","schema_version":"1.0","event_id":"sha256:f1528d18b4815d81ce61fbc879ee0b69302b37aaee4bb5570453308f70579911"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/JKN6U2ZWFDXTT5JBFVOJP2ZEHL/bundle.json","state_url":"https://pith.science/pith/JKN6U2ZWFDXTT5JBFVOJP2ZEHL/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/JKN6U2ZWFDXTT5JBFVOJP2ZEHL/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":"2026-08-14T03:02:21Z","links":{"resolver":"https://pith.science/pith/JKN6U2ZWFDXTT5JBFVOJP2ZEHL","bundle":"https://pith.science/pith/JKN6U2ZWFDXTT5JBFVOJP2ZEHL/bundle.json","state":"https://pith.science/pith/JKN6U2ZWFDXTT5JBFVOJP2ZEHL/state.json","well_known_bundle":"https://pith.science/.well-known/pith/JKN6U2ZWFDXTT5JBFVOJP2ZEHL/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2020:JKN6U2ZWFDXTT5JBFVOJP2ZEHL","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":"0610fdbe88deb7adb21c257245c3a168626dc1879b4403fd98faf1cb1b458564","cross_cats_sorted":["nucl-ex"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ex","submitted_at":"2020-07-22T09:27:24Z","title_canon_sha256":"85ed60312b5e833a296eabb58eee1114e27568c17af0df5c5de208ec788a7906"},"schema_version":"1.0","source":{"id":"2007.11293","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2007.11293","created_at":"2026-07-05T02:09:43Z"},{"alias_kind":"arxiv_version","alias_value":"2007.11293v2","created_at":"2026-07-05T02:09:43Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2007.11293","created_at":"2026-07-05T02:09:43Z"},{"alias_kind":"pith_short_12","alias_value":"JKN6U2ZWFDXT","created_at":"2026-07-05T02:09:43Z"},{"alias_kind":"pith_short_16","alias_value":"JKN6U2ZWFDXTT5JB","created_at":"2026-07-05T02:09:43Z"},{"alias_kind":"pith_short_8","alias_value":"JKN6U2ZW","created_at":"2026-07-05T02:09:43Z"}],"graph_snapshots":[{"event_id":"sha256:f1528d18b4815d81ce61fbc879ee0b69302b37aaee4bb5570453308f70579911","target":"graph","created_at":"2026-07-05T02:09:43Z","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/2007.11293/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"The neutron lifetime has been measured by comparing the decay rate with the reaction rate of $^3$He nuclei of a pulsed neutron beam from the spallation neutron source at the Japan Proton Accelerator Research Complex (J-PARC). The decay rate and the reaction rate were determined by simultaneously detecting electrons from the neutron decay and protons from the $^3$He(n,p)$^3$H reaction using a gas chamber of which working gas contains diluted $^3$He. The measured neutron lifetime was $898\\,\\pm\\,10\\,_{\\rm stat}\\,^{+15}_{-18}\\,_{\\rm sys}\\,$s.","authors_text":"A. Morishita, D. Sekiba, G. Ichikawa, H. M. Shimizu, H. Oide, H. Okabe, H. Otono, H. Sumino, H. Uehara, J. Koga, K. Hirota, K. Mishima, K. Morikawa, K. Yano, M. Kitaguchi, M. Yokohashi, N. Nagakura, N. Sumi, R. Kitahara, S. Ieki, S. Yamashita, T. Ino, T. Mogi, T. Shima, T. Tomita, T. Yamada, T. Yoshioka, Y. Iwashita, Y. Seki","cross_cats":["nucl-ex"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ex","submitted_at":"2020-07-22T09:27:24Z","title":"Neutron lifetime measurement with pulsed cold neutrons"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2007.11293","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":"sha256:1d82e0674b675429e10e76bff119d6590d4dec05e2e7d4806ac9da257fe3e620","target":"record","created_at":"2026-07-05T02:09:43Z","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":"0610fdbe88deb7adb21c257245c3a168626dc1879b4403fd98faf1cb1b458564","cross_cats_sorted":["nucl-ex"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ex","submitted_at":"2020-07-22T09:27:24Z","title_canon_sha256":"85ed60312b5e833a296eabb58eee1114e27568c17af0df5c5de208ec788a7906"},"schema_version":"1.0","source":{"id":"2007.11293","kind":"arxiv","version":2}},"canonical_sha256":"4a9bea6b3628ef39f5212d5c97eb243ac06f905f2e41617e51d0b1a0b7c49c54","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"4a9bea6b3628ef39f5212d5c97eb243ac06f905f2e41617e51d0b1a0b7c49c54","first_computed_at":"2026-07-05T02:09:43.453883Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T02:09:43.453883Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"zciAlu9Dj39ZdKCXiQ6CNoeyIV6MM2UVQV4eDf+M3urWheCGv+XvSK9yHlBX4JQCljni+ywZK0PpbK5bnYfdDQ==","signature_status":"signed_v1","signed_at":"2026-07-05T02:09:43.454556Z","signed_message":"canonical_sha256_bytes"},"source_id":"2007.11293","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:1d82e0674b675429e10e76bff119d6590d4dec05e2e7d4806ac9da257fe3e620","sha256:f1528d18b4815d81ce61fbc879ee0b69302b37aaee4bb5570453308f70579911"],"state_sha256":"34f026b1565e8ed86e9162d577dcb98b9c00c3f6460292318231fa426e555023"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"5JKbs1sHAmKTP0zJJOjg5+ub7IRdgTQZLcpIf8Q+BZUQlVtNBWi7zrQMwnvm8ax/g8j/AjtMQpDWn8xNmRzGCw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-14T03:02:21.981584Z","bundle_sha256":"56fa820fc86c3732ee400919f4a814b11e3ec93404548c3588de35b83bd49337"}}