{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2008:C4AG47EESMNCMLT3WRG76URY7F","short_pith_number":"pith:C4AG47EE","canonical_record":{"source":{"id":"0806.4837","kind":"arxiv","version":3},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"nucl-ex","submitted_at":"2008-06-30T10:22:33Z","cross_cats_sorted":[],"title_canon_sha256":"1ed41d6d63489df2cd97150026845f2d037647794590953d0a06f604172262a7","abstract_canon_sha256":"f49dec77ca1ae3b62011f15b4a79219a6fe91d6293bf8feed791b9030c62fd8d"},"schema_version":"1.0"},"canonical_sha256":"17006e7c84931a262e7bb44dff5238f9497416b138fd4691dbd0d512815f3cda","source":{"kind":"arxiv","id":"0806.4837","version":3},"source_aliases":[{"alias_kind":"arxiv","alias_value":"0806.4837","created_at":"2026-07-04T15:13:22Z"},{"alias_kind":"arxiv_version","alias_value":"0806.4837v3","created_at":"2026-07-04T15:13:22Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0806.4837","created_at":"2026-07-04T15:13:22Z"},{"alias_kind":"pith_short_12","alias_value":"C4AG47EESMNC","created_at":"2026-07-04T15:13:22Z"},{"alias_kind":"pith_short_16","alias_value":"C4AG47EESMNCMLT3","created_at":"2026-07-04T15:13:22Z"},{"alias_kind":"pith_short_8","alias_value":"C4AG47EE","created_at":"2026-07-04T15:13:22Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2008:C4AG47EESMNCMLT3WRG76URY7F","target":"record","payload":{"canonical_record":{"source":{"id":"0806.4837","kind":"arxiv","version":3},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"nucl-ex","submitted_at":"2008-06-30T10:22:33Z","cross_cats_sorted":[],"title_canon_sha256":"1ed41d6d63489df2cd97150026845f2d037647794590953d0a06f604172262a7","abstract_canon_sha256":"f49dec77ca1ae3b62011f15b4a79219a6fe91d6293bf8feed791b9030c62fd8d"},"schema_version":"1.0"},"canonical_sha256":"17006e7c84931a262e7bb44dff5238f9497416b138fd4691dbd0d512815f3cda","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-04T15:13:22.254526Z","signature_b64":"ABjCXN6KD8qOuX3SShTMz1xf2uFgV0SLgXOUWotV18cb1T+u7g7aDCmxBjp9/KzBoofuLlS+EfjygJz5N20TDw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"17006e7c84931a262e7bb44dff5238f9497416b138fd4691dbd0d512815f3cda","last_reissued_at":"2026-07-04T15:13:22.254102Z","signature_status":"signed_v1","first_computed_at":"2026-07-04T15:13:22.254102Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"0806.4837","source_version":3,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-07-04T15:13:22Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"C/eQOhwVk0pSOnBr+kVO/pbsmx1CgJsUb6nZmEE7EyMBAWeU2xZmRrsED9dutMpGcpO0AUXQTE73rOZCAw+xCQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-24T17:17:37.052326Z"},"content_sha256":"7132c93dcb0288dc1faf207dff48502046c86595121cd35e8271a3b4479c69a2","schema_version":"1.0","event_id":"sha256:7132c93dcb0288dc1faf207dff48502046c86595121cd35e8271a3b4479c69a2"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2008:C4AG47EESMNCMLT3WRG76URY7F","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"An Improved Neutron Electric Dipole Moment Experiment","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"nucl-ex","authors_text":"A. Knecht, A. Mtchedlishvili, A. Schnabel, A. S. Pazgalev, A. Weis, B. Lauss, C. Plonka-Spehr, D. Rebreyend, E. Gutsmiedl, G. Ban, G. Bison, G. Hampel, G. Petzold, G. Qu\\'em\\'ener, G. Rogel, G. Zsigmond, I. Altarev, J. V. Kratz, J. Zejma, K. Bodek, K. Eberhardt, K. Kirch, L. Trahms, M. Burghoff, M. Daum, M. Ku\\'zniak, M. Tur, N. Khomutov, N. Severijns, N. Wiehl, O. Naviliat-Cuncic, P. Fierlinger, P. Knowles, R. Henneck, R. Stoepler, S. Knappe-Grueneberg, S. Paul, S. Roccia, St. Kistryn, T. Lauer, T. Lefort, T. Sander-Thoemmes, W. Heil, Yu. Sobolev","submitted_at":"2008-06-30T10:22:33Z","abstract_excerpt":"A new measurement of the neutron EDM, using Ramsey's method of separated oscillatory fields, is in preparation at the new high intensity source of ultra-cold neutrons (UCN) at the Paul Scherrer Institute, Villigen, Switzerland (PSI). The existence of a non-zero nEDM would violate both parity and time reversal symmetry and, given the CPT theorem, might lead to a discovery of new CP violating mechanisms. Already the current upper limit for the nEDM (|d_n|<2.9E-26 e.cm) constrains some extensions of the Standard Model.\n  The new experiment aims at a two orders of magnitude reduction of the experi"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0806.4837","kind":"arxiv","version":3},"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/0806.4837/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":"2026-07-04T15:13:22Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"TsoGJ42iWLu7MRPeB7F61XZ8C6BmHOnx7EEs1DOzsGNSZtoedvXQShyXEy9P5qWrbVJdFN70S3Nkg0hQnTsdBQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-24T17:17:37.052736Z"},"content_sha256":"0c29fb06ae8ba187bf360a6e9d4e88a4abfffa8fe845649715bbe0d699653585","schema_version":"1.0","event_id":"sha256:0c29fb06ae8ba187bf360a6e9d4e88a4abfffa8fe845649715bbe0d699653585"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/C4AG47EESMNCMLT3WRG76URY7F/bundle.json","state_url":"https://pith.science/pith/C4AG47EESMNCMLT3WRG76URY7F/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/C4AG47EESMNCMLT3WRG76URY7F/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":"2026-07-24T17:17:37Z","links":{"resolver":"https://pith.science/pith/C4AG47EESMNCMLT3WRG76URY7F","bundle":"https://pith.science/pith/C4AG47EESMNCMLT3WRG76URY7F/bundle.json","state":"https://pith.science/pith/C4AG47EESMNCMLT3WRG76URY7F/state.json","well_known_bundle":"https://pith.science/.well-known/pith/C4AG47EESMNCMLT3WRG76URY7F/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2008:C4AG47EESMNCMLT3WRG76URY7F","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":"f49dec77ca1ae3b62011f15b4a79219a6fe91d6293bf8feed791b9030c62fd8d","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"nucl-ex","submitted_at":"2008-06-30T10:22:33Z","title_canon_sha256":"1ed41d6d63489df2cd97150026845f2d037647794590953d0a06f604172262a7"},"schema_version":"1.0","source":{"id":"0806.4837","kind":"arxiv","version":3}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"0806.4837","created_at":"2026-07-04T15:13:22Z"},{"alias_kind":"arxiv_version","alias_value":"0806.4837v3","created_at":"2026-07-04T15:13:22Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0806.4837","created_at":"2026-07-04T15:13:22Z"},{"alias_kind":"pith_short_12","alias_value":"C4AG47EESMNC","created_at":"2026-07-04T15:13:22Z"},{"alias_kind":"pith_short_16","alias_value":"C4AG47EESMNCMLT3","created_at":"2026-07-04T15:13:22Z"},{"alias_kind":"pith_short_8","alias_value":"C4AG47EE","created_at":"2026-07-04T15:13:22Z"}],"graph_snapshots":[{"event_id":"sha256:0c29fb06ae8ba187bf360a6e9d4e88a4abfffa8fe845649715bbe0d699653585","target":"graph","created_at":"2026-07-04T15:13:22Z","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/0806.4837/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"A new measurement of the neutron EDM, using Ramsey's method of separated oscillatory fields, is in preparation at the new high intensity source of ultra-cold neutrons (UCN) at the Paul Scherrer Institute, Villigen, Switzerland (PSI). The existence of a non-zero nEDM would violate both parity and time reversal symmetry and, given the CPT theorem, might lead to a discovery of new CP violating mechanisms. Already the current upper limit for the nEDM (|d_n|<2.9E-26 e.cm) constrains some extensions of the Standard Model.\n  The new experiment aims at a two orders of magnitude reduction of the experi","authors_text":"A. Knecht, A. Mtchedlishvili, A. Schnabel, A. S. Pazgalev, A. Weis, B. Lauss, C. Plonka-Spehr, D. Rebreyend, E. Gutsmiedl, G. Ban, G. Bison, G. Hampel, G. Petzold, G. Qu\\'em\\'ener, G. Rogel, G. Zsigmond, I. Altarev, J. V. Kratz, J. Zejma, K. Bodek, K. Eberhardt, K. Kirch, L. Trahms, M. Burghoff, M. Daum, M. Ku\\'zniak, M. Tur, N. Khomutov, N. Severijns, N. Wiehl, O. Naviliat-Cuncic, P. Fierlinger, P. Knowles, R. Henneck, R. Stoepler, S. Knappe-Grueneberg, S. Paul, S. Roccia, St. Kistryn, T. Lauer, T. Lefort, T. Sander-Thoemmes, W. Heil, Yu. Sobolev","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"nucl-ex","submitted_at":"2008-06-30T10:22:33Z","title":"An Improved Neutron Electric Dipole Moment Experiment"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0806.4837","kind":"arxiv","version":3},"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":"sha256:7132c93dcb0288dc1faf207dff48502046c86595121cd35e8271a3b4479c69a2","target":"record","created_at":"2026-07-04T15:13:22Z","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":"f49dec77ca1ae3b62011f15b4a79219a6fe91d6293bf8feed791b9030c62fd8d","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"nucl-ex","submitted_at":"2008-06-30T10:22:33Z","title_canon_sha256":"1ed41d6d63489df2cd97150026845f2d037647794590953d0a06f604172262a7"},"schema_version":"1.0","source":{"id":"0806.4837","kind":"arxiv","version":3}},"canonical_sha256":"17006e7c84931a262e7bb44dff5238f9497416b138fd4691dbd0d512815f3cda","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"17006e7c84931a262e7bb44dff5238f9497416b138fd4691dbd0d512815f3cda","first_computed_at":"2026-07-04T15:13:22.254102Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-04T15:13:22.254102Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"ABjCXN6KD8qOuX3SShTMz1xf2uFgV0SLgXOUWotV18cb1T+u7g7aDCmxBjp9/KzBoofuLlS+EfjygJz5N20TDw==","signature_status":"signed_v1","signed_at":"2026-07-04T15:13:22.254526Z","signed_message":"canonical_sha256_bytes"},"source_id":"0806.4837","source_kind":"arxiv","source_version":3}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:7132c93dcb0288dc1faf207dff48502046c86595121cd35e8271a3b4479c69a2","sha256:0c29fb06ae8ba187bf360a6e9d4e88a4abfffa8fe845649715bbe0d699653585"],"state_sha256":"97cddd77868931f8452bca1952989ed310a2d9c94a86c57a68578b88e8dfae01"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"guekb+knnnCvzDF2doJbkHec1M7pKdUy2Vg2nKkB/NzLyeeFGBtLl+YRQEeCX9QjnHex186ZF5jzJjWV1EDPCw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-07-24T17:17:37.054933Z","bundle_sha256":"b02cd8eac606f15647b465c559b6714b7515f89c255727147ab134531fed4648"}}