{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2018:446RCROITKXXTLG3FPN4EAEWYE","short_pith_number":"pith:446RCROI","canonical_record":{"source":{"id":"1807.04039","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"nucl-th","submitted_at":"2018-07-11T09:45:42Z","cross_cats_sorted":[],"title_canon_sha256":"a9212e51fbafc7ef3a08b324600c3feacbd1b394755b1df07f2242b9863f1080","abstract_canon_sha256":"48b38456712164e0cd9c3419df99bf31fdfe18280f5010bdbc8c5986ca4520fc"},"schema_version":"1.0"},"canonical_sha256":"e73d1145c89aaf79acdb2bdbc20096c10e2d7809a75a8988e11eb1064030ced8","source":{"kind":"arxiv","id":"1807.04039","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1807.04039","created_at":"2026-05-17T23:59:08Z"},{"alias_kind":"arxiv_version","alias_value":"1807.04039v1","created_at":"2026-05-17T23:59:08Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1807.04039","created_at":"2026-05-17T23:59:08Z"},{"alias_kind":"pith_short_12","alias_value":"446RCROITKXX","created_at":"2026-05-18T12:32:05Z"},{"alias_kind":"pith_short_16","alias_value":"446RCROITKXXTLG3","created_at":"2026-05-18T12:32:05Z"},{"alias_kind":"pith_short_8","alias_value":"446RCROI","created_at":"2026-05-18T12:32:05Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2018:446RCROITKXXTLG3FPN4EAEWYE","target":"record","payload":{"canonical_record":{"source":{"id":"1807.04039","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"nucl-th","submitted_at":"2018-07-11T09:45:42Z","cross_cats_sorted":[],"title_canon_sha256":"a9212e51fbafc7ef3a08b324600c3feacbd1b394755b1df07f2242b9863f1080","abstract_canon_sha256":"48b38456712164e0cd9c3419df99bf31fdfe18280f5010bdbc8c5986ca4520fc"},"schema_version":"1.0"},"canonical_sha256":"e73d1145c89aaf79acdb2bdbc20096c10e2d7809a75a8988e11eb1064030ced8","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-17T23:59:08.080638Z","signature_b64":"SqUqs+q4V6CsChaBlhQ14a+oKb6FCKWdv9+JQoJkoxqRZ6gHBLnpaQkiwVtaMRJDCo/xSKh3OwkPaNwLtu5oDA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"e73d1145c89aaf79acdb2bdbc20096c10e2d7809a75a8988e11eb1064030ced8","last_reissued_at":"2026-05-17T23:59:08.080142Z","signature_status":"signed_v1","first_computed_at":"2026-05-17T23:59:08.080142Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1807.04039","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":"2026-05-17T23:59:08Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"ZuFkW/n19MJJyA/dskpPgTyVa50wTBn7KFKuYlYIVelZ5hw1GFbY66IISreQlG8Cfei31qQ9/s0qlqpoyao5Cw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-02T11:23:43.299243Z"},"content_sha256":"35c1a1799d635bc34a33e65d04466b62184a21bbd2f42a4940cb04a0080cac01","schema_version":"1.0","event_id":"sha256:35c1a1799d635bc34a33e65d04466b62184a21bbd2f42a4940cb04a0080cac01"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2018:446RCROITKXXTLG3FPN4EAEWYE","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Beyond--mean--field effective masses in the nuclear Fermi liquid from axial breathing modes","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"nucl-th","authors_text":"D. Gambacurta, M. Grasso, O. Vasseur","submitted_at":"2018-07-11T09:45:42Z","abstract_excerpt":"Axial breathing modes are studied within the nuclear energy--density--functional theory to discuss the modification of the nucleon effective mass produced beyond the mean--field approximation. This analysis is peformed with the subtracted second random--phase--approximation (SSRPA) model applied to two nuclei, $^{48}$Ca and $^{90}$Zr. Analyzing the centroid energies of axial breathing modes obtained with the mean--field--based random--phase approximation and with the beyond--mean--field SSRPA model, we estimate the modification (enhancement) of the effective mass which is induced beyond the me"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1807.04039","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":"2026-05-17T23:59:08Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"BJZ4agtMxJCI0bB3X6SPLIZZz5+dsg6IUZsl+PDBaPU/TLhTa7g30Q44KxrbidAE0RAJjuVYIcG2uBQ/ZxMyAQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-02T11:23:43.299594Z"},"content_sha256":"44b3fd5c346202fab02476930f5e0d0aeb70858c0dd4f1cbb639ead9ac384a97","schema_version":"1.0","event_id":"sha256:44b3fd5c346202fab02476930f5e0d0aeb70858c0dd4f1cbb639ead9ac384a97"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/446RCROITKXXTLG3FPN4EAEWYE/bundle.json","state_url":"https://pith.science/pith/446RCROITKXXTLG3FPN4EAEWYE/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/446RCROITKXXTLG3FPN4EAEWYE/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":"2026-06-02T11:23:43Z","links":{"resolver":"https://pith.science/pith/446RCROITKXXTLG3FPN4EAEWYE","bundle":"https://pith.science/pith/446RCROITKXXTLG3FPN4EAEWYE/bundle.json","state":"https://pith.science/pith/446RCROITKXXTLG3FPN4EAEWYE/state.json","well_known_bundle":"https://pith.science/.well-known/pith/446RCROITKXXTLG3FPN4EAEWYE/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2018:446RCROITKXXTLG3FPN4EAEWYE","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":"48b38456712164e0cd9c3419df99bf31fdfe18280f5010bdbc8c5986ca4520fc","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"nucl-th","submitted_at":"2018-07-11T09:45:42Z","title_canon_sha256":"a9212e51fbafc7ef3a08b324600c3feacbd1b394755b1df07f2242b9863f1080"},"schema_version":"1.0","source":{"id":"1807.04039","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1807.04039","created_at":"2026-05-17T23:59:08Z"},{"alias_kind":"arxiv_version","alias_value":"1807.04039v1","created_at":"2026-05-17T23:59:08Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1807.04039","created_at":"2026-05-17T23:59:08Z"},{"alias_kind":"pith_short_12","alias_value":"446RCROITKXX","created_at":"2026-05-18T12:32:05Z"},{"alias_kind":"pith_short_16","alias_value":"446RCROITKXXTLG3","created_at":"2026-05-18T12:32:05Z"},{"alias_kind":"pith_short_8","alias_value":"446RCROI","created_at":"2026-05-18T12:32:05Z"}],"graph_snapshots":[{"event_id":"sha256:44b3fd5c346202fab02476930f5e0d0aeb70858c0dd4f1cbb639ead9ac384a97","target":"graph","created_at":"2026-05-17T23:59:08Z","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":"Axial breathing modes are studied within the nuclear energy--density--functional theory to discuss the modification of the nucleon effective mass produced beyond the mean--field approximation. This analysis is peformed with the subtracted second random--phase--approximation (SSRPA) model applied to two nuclei, $^{48}$Ca and $^{90}$Zr. Analyzing the centroid energies of axial breathing modes obtained with the mean--field--based random--phase approximation and with the beyond--mean--field SSRPA model, we estimate the modification (enhancement) of the effective mass which is induced beyond the me","authors_text":"D. Gambacurta, M. Grasso, O. Vasseur","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"nucl-th","submitted_at":"2018-07-11T09:45:42Z","title":"Beyond--mean--field effective masses in the nuclear Fermi liquid from axial breathing modes"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1807.04039","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":"sha256:35c1a1799d635bc34a33e65d04466b62184a21bbd2f42a4940cb04a0080cac01","target":"record","created_at":"2026-05-17T23:59:08Z","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":"48b38456712164e0cd9c3419df99bf31fdfe18280f5010bdbc8c5986ca4520fc","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"nucl-th","submitted_at":"2018-07-11T09:45:42Z","title_canon_sha256":"a9212e51fbafc7ef3a08b324600c3feacbd1b394755b1df07f2242b9863f1080"},"schema_version":"1.0","source":{"id":"1807.04039","kind":"arxiv","version":1}},"canonical_sha256":"e73d1145c89aaf79acdb2bdbc20096c10e2d7809a75a8988e11eb1064030ced8","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"e73d1145c89aaf79acdb2bdbc20096c10e2d7809a75a8988e11eb1064030ced8","first_computed_at":"2026-05-17T23:59:08.080142Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-17T23:59:08.080142Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"SqUqs+q4V6CsChaBlhQ14a+oKb6FCKWdv9+JQoJkoxqRZ6gHBLnpaQkiwVtaMRJDCo/xSKh3OwkPaNwLtu5oDA==","signature_status":"signed_v1","signed_at":"2026-05-17T23:59:08.080638Z","signed_message":"canonical_sha256_bytes"},"source_id":"1807.04039","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:35c1a1799d635bc34a33e65d04466b62184a21bbd2f42a4940cb04a0080cac01","sha256:44b3fd5c346202fab02476930f5e0d0aeb70858c0dd4f1cbb639ead9ac384a97"],"state_sha256":"1659821cdd2b977df1c25dd9f127b3bc9796c640a5d6ba69775f784229c0226a"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"1phmxIcZWNAlz1s5IKypWHqM9J1NtmJ02BhDo6wVf0z2Lwz28Duf+I0kZRHtUoTLLVMcDO/h8V9hRBU77MxIBQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-02T11:23:43.301441Z","bundle_sha256":"a6da4887a60bd906006a1eaa9c97a85400d73ebfbe9337e7c8e56c3418c26126"}}