{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2018:JJQ6O4KB6GKLSN7IDQG6RKVC3J","short_pith_number":"pith:JJQ6O4KB","canonical_record":{"source":{"id":"1808.03997","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"nucl-ex","submitted_at":"2018-08-12T20:00:58Z","cross_cats_sorted":["nucl-th"],"title_canon_sha256":"c52e4d221c93f801dc56eba1ee1b6531378bc41b73b2598ad5ad187c1d2c234d","abstract_canon_sha256":"6ec3eb50399c97b3191bd48cd6118c8af3031e384cffb1fd3a47aefb993684ec"},"schema_version":"1.0"},"canonical_sha256":"4a61e77141f194b937e81c0de8aaa2da4e837df304769c77b26add6a8f93b616","source":{"kind":"arxiv","id":"1808.03997","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1808.03997","created_at":"2026-05-18T00:08:14Z"},{"alias_kind":"arxiv_version","alias_value":"1808.03997v1","created_at":"2026-05-18T00:08:14Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1808.03997","created_at":"2026-05-18T00:08:14Z"},{"alias_kind":"pith_short_12","alias_value":"JJQ6O4KB6GKL","created_at":"2026-05-18T12:32:31Z"},{"alias_kind":"pith_short_16","alias_value":"JJQ6O4KB6GKLSN7I","created_at":"2026-05-18T12:32:31Z"},{"alias_kind":"pith_short_8","alias_value":"JJQ6O4KB","created_at":"2026-05-18T12:32:31Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2018:JJQ6O4KB6GKLSN7IDQG6RKVC3J","target":"record","payload":{"canonical_record":{"source":{"id":"1808.03997","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"nucl-ex","submitted_at":"2018-08-12T20:00:58Z","cross_cats_sorted":["nucl-th"],"title_canon_sha256":"c52e4d221c93f801dc56eba1ee1b6531378bc41b73b2598ad5ad187c1d2c234d","abstract_canon_sha256":"6ec3eb50399c97b3191bd48cd6118c8af3031e384cffb1fd3a47aefb993684ec"},"schema_version":"1.0"},"canonical_sha256":"4a61e77141f194b937e81c0de8aaa2da4e837df304769c77b26add6a8f93b616","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:08:14.191012Z","signature_b64":"+J0MQaWyNMeFiKdr/ZnJxWHSraCDQCIsyk+R86+SQ3ZU0nIXPLXV5JeNEzyofKZc/LFofzp4d36nNS7EhXr7DQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"4a61e77141f194b937e81c0de8aaa2da4e837df304769c77b26add6a8f93b616","last_reissued_at":"2026-05-18T00:08:14.190557Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:08:14.190557Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1808.03997","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":"2026-05-18T00:08:14Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"ox6lg1p/UJWApehyR86z2Cc5V4Q/dI2uXfgROHBVP7RwoV8S7A8JdlzYJFom21eW7iWj1uxFjW6nT3SioFyABg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-23T11:28:20.801088Z"},"content_sha256":"c3bdad038f027a1866564e96839310afd7bf89bc5e06e4ba67f060f08b2feb1c","schema_version":"1.0","event_id":"sha256:c3bdad038f027a1866564e96839310afd7bf89bc5e06e4ba67f060f08b2feb1c"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2018:JJQ6O4KB6GKLSN7IDQG6RKVC3J","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Precision Mass Measurement of $^{58-63}$Cr: Nuclear Collectivity towards the \\emph{N}=40 Island of Inversion","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["nucl-th"],"primary_cat":"nucl-ex","authors_text":"Achim Schwenk, Andree Welker, Bruce Marsh, Christophe Seiffert, David Lunney, Dennis Neidherr, Dinko Atanasov, Dmitrii Fedorov, Frank Herfurth, Frank Wienholtz, Jason D. Holt, Johannes Simonis, Kai Zuber, Katherina Chrysalidis, Klaus Blaum, Lutz Schweikhard, Marco Rosenbusch, Maxime Mougeot, Robert N. Wolf, Sebastian George, Sebastian Rothe, Steven Ragnar Stroberg, Tom Day Goodacre, Valentin Fedosseev, Vladimir Manea","submitted_at":"2018-08-12T20:00:58Z","abstract_excerpt":"The neutron-rich isotopes $^{58-63}$Cr were produced for the first time at the ISOLDE facility and their masses were measured with the ISOLTRAP spectrometer. The new values are up to 300 times more precise than those in the literature and indicate significantly different nuclear structure from the new mass-surface trend. A gradual onset of deformation is found in this proton and neutron mid-shell region, which is a gateway to the second island of inversion around \\emph{N}=40. In addition to comparisons with density-functional theory and large-scale shell-model calculations, we present predicti"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1808.03997","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":""},"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":"2026-05-18T00:08:14Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"ysFp8TN89YI3qc7yMGMJkJNZtQnMtpqVuAIU0tOcH94V+/+Q0WhAQAkGT9W4b3q9P+5ZqQXDr4kq8vcL816EAg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-23T11:28:20.801931Z"},"content_sha256":"fffbb57f335c904c328d65c7876e0ce51ef49dbecd99b9263d31f3163e9d4b7c","schema_version":"1.0","event_id":"sha256:fffbb57f335c904c328d65c7876e0ce51ef49dbecd99b9263d31f3163e9d4b7c"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/JJQ6O4KB6GKLSN7IDQG6RKVC3J/bundle.json","state_url":"https://pith.science/pith/JJQ6O4KB6GKLSN7IDQG6RKVC3J/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/JJQ6O4KB6GKLSN7IDQG6RKVC3J/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":"2026-05-23T11:28:20Z","links":{"resolver":"https://pith.science/pith/JJQ6O4KB6GKLSN7IDQG6RKVC3J","bundle":"https://pith.science/pith/JJQ6O4KB6GKLSN7IDQG6RKVC3J/bundle.json","state":"https://pith.science/pith/JJQ6O4KB6GKLSN7IDQG6RKVC3J/state.json","well_known_bundle":"https://pith.science/.well-known/pith/JJQ6O4KB6GKLSN7IDQG6RKVC3J/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2018:JJQ6O4KB6GKLSN7IDQG6RKVC3J","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":"6ec3eb50399c97b3191bd48cd6118c8af3031e384cffb1fd3a47aefb993684ec","cross_cats_sorted":["nucl-th"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"nucl-ex","submitted_at":"2018-08-12T20:00:58Z","title_canon_sha256":"c52e4d221c93f801dc56eba1ee1b6531378bc41b73b2598ad5ad187c1d2c234d"},"schema_version":"1.0","source":{"id":"1808.03997","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1808.03997","created_at":"2026-05-18T00:08:14Z"},{"alias_kind":"arxiv_version","alias_value":"1808.03997v1","created_at":"2026-05-18T00:08:14Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1808.03997","created_at":"2026-05-18T00:08:14Z"},{"alias_kind":"pith_short_12","alias_value":"JJQ6O4KB6GKL","created_at":"2026-05-18T12:32:31Z"},{"alias_kind":"pith_short_16","alias_value":"JJQ6O4KB6GKLSN7I","created_at":"2026-05-18T12:32:31Z"},{"alias_kind":"pith_short_8","alias_value":"JJQ6O4KB","created_at":"2026-05-18T12:32:31Z"}],"graph_snapshots":[{"event_id":"sha256:fffbb57f335c904c328d65c7876e0ce51ef49dbecd99b9263d31f3163e9d4b7c","target":"graph","created_at":"2026-05-18T00:08:14Z","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 neutron-rich isotopes $^{58-63}$Cr were produced for the first time at the ISOLDE facility and their masses were measured with the ISOLTRAP spectrometer. The new values are up to 300 times more precise than those in the literature and indicate significantly different nuclear structure from the new mass-surface trend. A gradual onset of deformation is found in this proton and neutron mid-shell region, which is a gateway to the second island of inversion around \\emph{N}=40. In addition to comparisons with density-functional theory and large-scale shell-model calculations, we present predicti","authors_text":"Achim Schwenk, Andree Welker, Bruce Marsh, Christophe Seiffert, David Lunney, Dennis Neidherr, Dinko Atanasov, Dmitrii Fedorov, Frank Herfurth, Frank Wienholtz, Jason D. Holt, Johannes Simonis, Kai Zuber, Katherina Chrysalidis, Klaus Blaum, Lutz Schweikhard, Marco Rosenbusch, Maxime Mougeot, Robert N. Wolf, Sebastian George, Sebastian Rothe, Steven Ragnar Stroberg, Tom Day Goodacre, Valentin Fedosseev, Vladimir Manea","cross_cats":["nucl-th"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"nucl-ex","submitted_at":"2018-08-12T20:00:58Z","title":"Precision Mass Measurement of $^{58-63}$Cr: Nuclear Collectivity towards the \\emph{N}=40 Island of Inversion"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1808.03997","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:c3bdad038f027a1866564e96839310afd7bf89bc5e06e4ba67f060f08b2feb1c","target":"record","created_at":"2026-05-18T00:08:14Z","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":"6ec3eb50399c97b3191bd48cd6118c8af3031e384cffb1fd3a47aefb993684ec","cross_cats_sorted":["nucl-th"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"nucl-ex","submitted_at":"2018-08-12T20:00:58Z","title_canon_sha256":"c52e4d221c93f801dc56eba1ee1b6531378bc41b73b2598ad5ad187c1d2c234d"},"schema_version":"1.0","source":{"id":"1808.03997","kind":"arxiv","version":1}},"canonical_sha256":"4a61e77141f194b937e81c0de8aaa2da4e837df304769c77b26add6a8f93b616","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"4a61e77141f194b937e81c0de8aaa2da4e837df304769c77b26add6a8f93b616","first_computed_at":"2026-05-18T00:08:14.190557Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:08:14.190557Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"+J0MQaWyNMeFiKdr/ZnJxWHSraCDQCIsyk+R86+SQ3ZU0nIXPLXV5JeNEzyofKZc/LFofzp4d36nNS7EhXr7DQ==","signature_status":"signed_v1","signed_at":"2026-05-18T00:08:14.191012Z","signed_message":"canonical_sha256_bytes"},"source_id":"1808.03997","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:c3bdad038f027a1866564e96839310afd7bf89bc5e06e4ba67f060f08b2feb1c","sha256:fffbb57f335c904c328d65c7876e0ce51ef49dbecd99b9263d31f3163e9d4b7c"],"state_sha256":"7910b5560a24bee8da47fe9a81e25601db155eefeadd7fbfa8786f8df155a9f3"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"DFkR6SmvrkNzHJV22bLkidHgn/whNkA2gDuY5o76GQd6XcIX0Q7rOjDLpRwzsty+3RgiejAoaTMevBlXsusIDQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-23T11:28:20.805649Z","bundle_sha256":"dd23a1fb68c162b181e8fee5b39e87f7206e02446b40977063968ff3bffcae39"}}