{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2000:SJ3J4NJVBAE2EYLYKQPKIYQ6FS","short_pith_number":"pith:SJ3J4NJV","canonical_record":{"source":{"id":"hep-ph/0007281","kind":"arxiv","version":2},"metadata":{"license":"","primary_cat":"hep-ph","submitted_at":"2000-07-25T18:55:52Z","cross_cats_sorted":[],"title_canon_sha256":"970d40f4a1e2d7a3a2b2a8642045f52c6c37562de3bcf38cef7d1744de6a405b","abstract_canon_sha256":"a849414ce26e0d412f9daa4b0fc6b6c149fb3e1c216db3bfff16c5a736cf4fed"},"schema_version":"1.0"},"canonical_sha256":"92769e35350809a26178541ea4621e2cb36b97a3c8fafb07719f6f9c36e4b74c","source":{"kind":"arxiv","id":"hep-ph/0007281","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"hep-ph/0007281","created_at":"2026-05-18T01:39:09Z"},{"alias_kind":"arxiv_version","alias_value":"hep-ph/0007281v2","created_at":"2026-05-18T01:39:09Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.hep-ph/0007281","created_at":"2026-05-18T01:39:09Z"},{"alias_kind":"pith_short_12","alias_value":"SJ3J4NJVBAE2","created_at":"2026-05-18T12:25:50Z"},{"alias_kind":"pith_short_16","alias_value":"SJ3J4NJVBAE2EYLY","created_at":"2026-05-18T12:25:50Z"},{"alias_kind":"pith_short_8","alias_value":"SJ3J4NJV","created_at":"2026-05-18T12:25:50Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2000:SJ3J4NJVBAE2EYLYKQPKIYQ6FS","target":"record","payload":{"canonical_record":{"source":{"id":"hep-ph/0007281","kind":"arxiv","version":2},"metadata":{"license":"","primary_cat":"hep-ph","submitted_at":"2000-07-25T18:55:52Z","cross_cats_sorted":[],"title_canon_sha256":"970d40f4a1e2d7a3a2b2a8642045f52c6c37562de3bcf38cef7d1744de6a405b","abstract_canon_sha256":"a849414ce26e0d412f9daa4b0fc6b6c149fb3e1c216db3bfff16c5a736cf4fed"},"schema_version":"1.0"},"canonical_sha256":"92769e35350809a26178541ea4621e2cb36b97a3c8fafb07719f6f9c36e4b74c","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:39:09.911420Z","signature_b64":"yc/ucvKk0Y34Qwbp3Ypt3zZCSIl8r7XCPoHWslFhdlLuHG8BtiAlsA20RsWZ2Z4YhCy1aNjmqyetHpOcjODXBg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"92769e35350809a26178541ea4621e2cb36b97a3c8fafb07719f6f9c36e4b74c","last_reissued_at":"2026-05-18T01:39:09.910929Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:39:09.910929Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"hep-ph/0007281","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":"2026-05-18T01:39:09Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"kI1QedaK+pZ29j8e6pGfZyVp4OtVfcoFilYe4kjml75qUwELRWxJfi9rmnrUECcCxWQtp9ga6lBgW+TIRuuPAg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-26T21:42:47.946562Z"},"content_sha256":"09ec110938142b6bbcea71a294f96bd86f68e368088b452b147d962499eee67e","schema_version":"1.0","event_id":"sha256:09ec110938142b6bbcea71a294f96bd86f68e368088b452b147d962499eee67e"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2000:SJ3J4NJVBAE2EYLYKQPKIYQ6FS","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Summary of Golden Measurements at a $\\nu$-Factory","license":"","headline":"","cross_cats":[],"primary_cat":"hep-ph","authors_text":"A. Cervera, A. Donini, J.J. Gomez Cadenas, M.B. Gavela, O. Mena, P. Hernandez, S. Rigolin","submitted_at":"2000-07-25T18:55:52Z","abstract_excerpt":"The precision and discovery potential of a neutrino factory based on muon storage rings is summarized. For three-family neutrino oscillations, we analyze how to measure or severely constraint the angle $\\theta_{13}$, CP violation, MSW effects and the sign of the atmospheric mass difference $\\Delta m^2_{23}$. The appearance of ``wrong-sign muons'' at three reference baselines is considered: 732 km, 3500 km and 7332 km. We exploit the dependence of the signal on the neutrino energy, and include as well realistic background estimations and detection efficiencies. The optimal baseline turns out to"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"hep-ph/0007281","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":"2026-05-18T01:39:09Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"TmXPnlaFNJgUd05tTKKdrSeUd1U/hbsqlMvKetdMeAZY+mSPTwAHkpue3gJvwrq8PJ577TnSpdAsk4yVa+jJCQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-26T21:42:47.947222Z"},"content_sha256":"21d2d6787c2cacbf732f0a14f133419817039aa1f24923bd70e30c74e4f3c8aa","schema_version":"1.0","event_id":"sha256:21d2d6787c2cacbf732f0a14f133419817039aa1f24923bd70e30c74e4f3c8aa"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/SJ3J4NJVBAE2EYLYKQPKIYQ6FS/bundle.json","state_url":"https://pith.science/pith/SJ3J4NJVBAE2EYLYKQPKIYQ6FS/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/SJ3J4NJVBAE2EYLYKQPKIYQ6FS/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":"2026-05-26T21:42:47Z","links":{"resolver":"https://pith.science/pith/SJ3J4NJVBAE2EYLYKQPKIYQ6FS","bundle":"https://pith.science/pith/SJ3J4NJVBAE2EYLYKQPKIYQ6FS/bundle.json","state":"https://pith.science/pith/SJ3J4NJVBAE2EYLYKQPKIYQ6FS/state.json","well_known_bundle":"https://pith.science/.well-known/pith/SJ3J4NJVBAE2EYLYKQPKIYQ6FS/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2000:SJ3J4NJVBAE2EYLYKQPKIYQ6FS","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":"a849414ce26e0d412f9daa4b0fc6b6c149fb3e1c216db3bfff16c5a736cf4fed","cross_cats_sorted":[],"license":"","primary_cat":"hep-ph","submitted_at":"2000-07-25T18:55:52Z","title_canon_sha256":"970d40f4a1e2d7a3a2b2a8642045f52c6c37562de3bcf38cef7d1744de6a405b"},"schema_version":"1.0","source":{"id":"hep-ph/0007281","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"hep-ph/0007281","created_at":"2026-05-18T01:39:09Z"},{"alias_kind":"arxiv_version","alias_value":"hep-ph/0007281v2","created_at":"2026-05-18T01:39:09Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.hep-ph/0007281","created_at":"2026-05-18T01:39:09Z"},{"alias_kind":"pith_short_12","alias_value":"SJ3J4NJVBAE2","created_at":"2026-05-18T12:25:50Z"},{"alias_kind":"pith_short_16","alias_value":"SJ3J4NJVBAE2EYLY","created_at":"2026-05-18T12:25:50Z"},{"alias_kind":"pith_short_8","alias_value":"SJ3J4NJV","created_at":"2026-05-18T12:25:50Z"}],"graph_snapshots":[{"event_id":"sha256:21d2d6787c2cacbf732f0a14f133419817039aa1f24923bd70e30c74e4f3c8aa","target":"graph","created_at":"2026-05-18T01:39:09Z","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 precision and discovery potential of a neutrino factory based on muon storage rings is summarized. For three-family neutrino oscillations, we analyze how to measure or severely constraint the angle $\\theta_{13}$, CP violation, MSW effects and the sign of the atmospheric mass difference $\\Delta m^2_{23}$. The appearance of ``wrong-sign muons'' at three reference baselines is considered: 732 km, 3500 km and 7332 km. We exploit the dependence of the signal on the neutrino energy, and include as well realistic background estimations and detection efficiencies. The optimal baseline turns out to","authors_text":"A. Cervera, A. Donini, J.J. Gomez Cadenas, M.B. Gavela, O. Mena, P. Hernandez, S. Rigolin","cross_cats":[],"headline":"","license":"","primary_cat":"hep-ph","submitted_at":"2000-07-25T18:55:52Z","title":"Summary of Golden Measurements at a $\\nu$-Factory"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"hep-ph/0007281","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":"sha256:09ec110938142b6bbcea71a294f96bd86f68e368088b452b147d962499eee67e","target":"record","created_at":"2026-05-18T01:39:09Z","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":"a849414ce26e0d412f9daa4b0fc6b6c149fb3e1c216db3bfff16c5a736cf4fed","cross_cats_sorted":[],"license":"","primary_cat":"hep-ph","submitted_at":"2000-07-25T18:55:52Z","title_canon_sha256":"970d40f4a1e2d7a3a2b2a8642045f52c6c37562de3bcf38cef7d1744de6a405b"},"schema_version":"1.0","source":{"id":"hep-ph/0007281","kind":"arxiv","version":2}},"canonical_sha256":"92769e35350809a26178541ea4621e2cb36b97a3c8fafb07719f6f9c36e4b74c","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"92769e35350809a26178541ea4621e2cb36b97a3c8fafb07719f6f9c36e4b74c","first_computed_at":"2026-05-18T01:39:09.910929Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:39:09.910929Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"yc/ucvKk0Y34Qwbp3Ypt3zZCSIl8r7XCPoHWslFhdlLuHG8BtiAlsA20RsWZ2Z4YhCy1aNjmqyetHpOcjODXBg==","signature_status":"signed_v1","signed_at":"2026-05-18T01:39:09.911420Z","signed_message":"canonical_sha256_bytes"},"source_id":"hep-ph/0007281","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:09ec110938142b6bbcea71a294f96bd86f68e368088b452b147d962499eee67e","sha256:21d2d6787c2cacbf732f0a14f133419817039aa1f24923bd70e30c74e4f3c8aa"],"state_sha256":"27ff5bd0eadf2476ab11680428236275760ee32e73491fccce740a975801f0c5"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"TgJEa/3Pf6u33jifJcoullpOJ66LfzHoHuyRChWJa8dOEAHSudhk6X5B/oEsPhxv903OK5JvavKjHX8AWSM2Cg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-26T21:42:47.950881Z","bundle_sha256":"356e0ff79d6d97fcd95bbd0d2c4c251f605e7bbd791f3357082f90f5c7686ff0"}}