{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2011:DCJHZYP5A3VEQDAZSFZHXJIPGC","short_pith_number":"pith:DCJHZYP5","canonical_record":{"source":{"id":"1110.0973","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"nucl-th","submitted_at":"2011-10-05T13:13:00Z","cross_cats_sorted":["nucl-ex"],"title_canon_sha256":"6a3ed40e8f0313e2235e728b932c8f4734deb1221496a068e80cba31766bf453","abstract_canon_sha256":"c7ffaa966808de1c628109217b352e7de151a47f4b624803add9a8a4d08d6b5f"},"schema_version":"1.0"},"canonical_sha256":"18927ce1fd06ea480c1991727ba50f30b705ac98f283a0a2cf83f2ef325cc294","source":{"kind":"arxiv","id":"1110.0973","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1110.0973","created_at":"2026-05-18T03:59:39Z"},{"alias_kind":"arxiv_version","alias_value":"1110.0973v1","created_at":"2026-05-18T03:59:39Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1110.0973","created_at":"2026-05-18T03:59:39Z"},{"alias_kind":"pith_short_12","alias_value":"DCJHZYP5A3VE","created_at":"2026-05-18T12:26:26Z"},{"alias_kind":"pith_short_16","alias_value":"DCJHZYP5A3VEQDAZ","created_at":"2026-05-18T12:26:26Z"},{"alias_kind":"pith_short_8","alias_value":"DCJHZYP5","created_at":"2026-05-18T12:26:26Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2011:DCJHZYP5A3VEQDAZSFZHXJIPGC","target":"record","payload":{"canonical_record":{"source":{"id":"1110.0973","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"nucl-th","submitted_at":"2011-10-05T13:13:00Z","cross_cats_sorted":["nucl-ex"],"title_canon_sha256":"6a3ed40e8f0313e2235e728b932c8f4734deb1221496a068e80cba31766bf453","abstract_canon_sha256":"c7ffaa966808de1c628109217b352e7de151a47f4b624803add9a8a4d08d6b5f"},"schema_version":"1.0"},"canonical_sha256":"18927ce1fd06ea480c1991727ba50f30b705ac98f283a0a2cf83f2ef325cc294","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T03:59:39.941832Z","signature_b64":"cdmkbyeqfsJ6DpUKFI4xLrzDH8/S77EK0T72xPQnmptt4sYjMGqCbIhP3Vy2f+RG2oBhLMH0Ckn1jBKCj/WfDQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"18927ce1fd06ea480c1991727ba50f30b705ac98f283a0a2cf83f2ef325cc294","last_reissued_at":"2026-05-18T03:59:39.941110Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T03:59:39.941110Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1110.0973","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":"2026-05-18T03:59:39Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Ep/VxtUXlw4DQ2rUtrnbaU9S9lyilCkcJe+7rwQyI6eRrMJ4NIgCtAwChKqLbG1yK5UA/is+VLUU+dRbrTCXCw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-01T11:32:05.639086Z"},"content_sha256":"eb9087e6feb85390e8675e2c80fa83f631c9c6730d5e0d6836ab9ac404688893","schema_version":"1.0","event_id":"sha256:eb9087e6feb85390e8675e2c80fa83f631c9c6730d5e0d6836ab9ac404688893"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2011:DCJHZYP5A3VEQDAZSFZHXJIPGC","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Low-energy dipole strength and the critical case of 48Ca","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["nucl-ex"],"primary_cat":"nucl-th","authors_text":"H. Hergert, P. Papakonstantinou, R. Roth, V.Yu. Ponomarev","submitted_at":"2011-10-05T13:13:00Z","abstract_excerpt":"Recent theoretical work has not led to a consensus regarding the nature of the low-energy E1 strength in the 40,44,48Ca isotopes, for which high-resolution (gamma,gamma') data exist. Here we revisit this problem using the first-order quasi-particle random-phase approximation (QRPA) and different interactions. First we examine all even Ca isotopes with N=14-40. All isotopes are predicted to undergo dipole transitions at low energy, of large and comparable isoscalar strength but of varying E1 strength. Provided a moderate and uniform energetic shift is introduced to the results, QRPA with the Go"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1110.0973","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":"2026-05-18T03:59:39Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"xWGOjXmDNEup1wMK3CnALAb4egb+VJrjiKP5CIcq5W2Ok0K4kpnmxB0kyRKh7X8y0+HNuCRg1h6oplZi27c/Cg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-01T11:32:05.639441Z"},"content_sha256":"cb5a366a4f54e5ea41ea4d875b96405de4ba733b91f5940949577309d077db63","schema_version":"1.0","event_id":"sha256:cb5a366a4f54e5ea41ea4d875b96405de4ba733b91f5940949577309d077db63"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/DCJHZYP5A3VEQDAZSFZHXJIPGC/bundle.json","state_url":"https://pith.science/pith/DCJHZYP5A3VEQDAZSFZHXJIPGC/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/DCJHZYP5A3VEQDAZSFZHXJIPGC/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":"2026-06-01T11:32:05Z","links":{"resolver":"https://pith.science/pith/DCJHZYP5A3VEQDAZSFZHXJIPGC","bundle":"https://pith.science/pith/DCJHZYP5A3VEQDAZSFZHXJIPGC/bundle.json","state":"https://pith.science/pith/DCJHZYP5A3VEQDAZSFZHXJIPGC/state.json","well_known_bundle":"https://pith.science/.well-known/pith/DCJHZYP5A3VEQDAZSFZHXJIPGC/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2011:DCJHZYP5A3VEQDAZSFZHXJIPGC","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":"c7ffaa966808de1c628109217b352e7de151a47f4b624803add9a8a4d08d6b5f","cross_cats_sorted":["nucl-ex"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"nucl-th","submitted_at":"2011-10-05T13:13:00Z","title_canon_sha256":"6a3ed40e8f0313e2235e728b932c8f4734deb1221496a068e80cba31766bf453"},"schema_version":"1.0","source":{"id":"1110.0973","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1110.0973","created_at":"2026-05-18T03:59:39Z"},{"alias_kind":"arxiv_version","alias_value":"1110.0973v1","created_at":"2026-05-18T03:59:39Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1110.0973","created_at":"2026-05-18T03:59:39Z"},{"alias_kind":"pith_short_12","alias_value":"DCJHZYP5A3VE","created_at":"2026-05-18T12:26:26Z"},{"alias_kind":"pith_short_16","alias_value":"DCJHZYP5A3VEQDAZ","created_at":"2026-05-18T12:26:26Z"},{"alias_kind":"pith_short_8","alias_value":"DCJHZYP5","created_at":"2026-05-18T12:26:26Z"}],"graph_snapshots":[{"event_id":"sha256:cb5a366a4f54e5ea41ea4d875b96405de4ba733b91f5940949577309d077db63","target":"graph","created_at":"2026-05-18T03:59:39Z","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":"Recent theoretical work has not led to a consensus regarding the nature of the low-energy E1 strength in the 40,44,48Ca isotopes, for which high-resolution (gamma,gamma') data exist. Here we revisit this problem using the first-order quasi-particle random-phase approximation (QRPA) and different interactions. First we examine all even Ca isotopes with N=14-40. All isotopes are predicted to undergo dipole transitions at low energy, of large and comparable isoscalar strength but of varying E1 strength. Provided a moderate and uniform energetic shift is introduced to the results, QRPA with the Go","authors_text":"H. Hergert, P. Papakonstantinou, R. Roth, V.Yu. Ponomarev","cross_cats":["nucl-ex"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"nucl-th","submitted_at":"2011-10-05T13:13:00Z","title":"Low-energy dipole strength and the critical case of 48Ca"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1110.0973","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:eb9087e6feb85390e8675e2c80fa83f631c9c6730d5e0d6836ab9ac404688893","target":"record","created_at":"2026-05-18T03:59:39Z","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":"c7ffaa966808de1c628109217b352e7de151a47f4b624803add9a8a4d08d6b5f","cross_cats_sorted":["nucl-ex"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"nucl-th","submitted_at":"2011-10-05T13:13:00Z","title_canon_sha256":"6a3ed40e8f0313e2235e728b932c8f4734deb1221496a068e80cba31766bf453"},"schema_version":"1.0","source":{"id":"1110.0973","kind":"arxiv","version":1}},"canonical_sha256":"18927ce1fd06ea480c1991727ba50f30b705ac98f283a0a2cf83f2ef325cc294","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"18927ce1fd06ea480c1991727ba50f30b705ac98f283a0a2cf83f2ef325cc294","first_computed_at":"2026-05-18T03:59:39.941110Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T03:59:39.941110Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"cdmkbyeqfsJ6DpUKFI4xLrzDH8/S77EK0T72xPQnmptt4sYjMGqCbIhP3Vy2f+RG2oBhLMH0Ckn1jBKCj/WfDQ==","signature_status":"signed_v1","signed_at":"2026-05-18T03:59:39.941832Z","signed_message":"canonical_sha256_bytes"},"source_id":"1110.0973","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:eb9087e6feb85390e8675e2c80fa83f631c9c6730d5e0d6836ab9ac404688893","sha256:cb5a366a4f54e5ea41ea4d875b96405de4ba733b91f5940949577309d077db63"],"state_sha256":"e29441c25fbfd493e56a5da0f37cd6216b1a8dedf6d57229b523e2b75fdddf22"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"IF+pM970nfUdK3+pKqV6E8XvWCm/f9jERfJkKvhsCREgb1lDcdWKGjcFXuGcDma0vRogdGw3W8Oo+WWrsFp7Bw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-01T11:32:05.641338Z","bundle_sha256":"2b3ed1f63a0659dbc453b628c4240e1716b2c11faac5b3a92d60d59d23a052be"}}