{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2018:ITBC7TS2GNKNSYQEDAKIU6QRK6","short_pith_number":"pith:ITBC7TS2","canonical_record":{"source":{"id":"1804.01718","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"nucl-th","submitted_at":"2018-04-05T08:08:17Z","cross_cats_sorted":[],"title_canon_sha256":"411a2c2c0e1e3ffacc19edd5f6efdb0d5772824c5b5572a02e516e17fcd93726","abstract_canon_sha256":"11fc4b0c9b02cad6416737c919f9e6c9cb68cefb99936f5bd8b3664b75c78841"},"schema_version":"1.0"},"canonical_sha256":"44c22fce5a3354d9620418148a7a11578e7bd4e5093606efd3dc6a421174cae9","source":{"kind":"arxiv","id":"1804.01718","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1804.01718","created_at":"2026-05-18T00:09:14Z"},{"alias_kind":"arxiv_version","alias_value":"1804.01718v2","created_at":"2026-05-18T00:09:14Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1804.01718","created_at":"2026-05-18T00:09:14Z"},{"alias_kind":"pith_short_12","alias_value":"ITBC7TS2GNKN","created_at":"2026-05-18T12:32:31Z"},{"alias_kind":"pith_short_16","alias_value":"ITBC7TS2GNKNSYQE","created_at":"2026-05-18T12:32:31Z"},{"alias_kind":"pith_short_8","alias_value":"ITBC7TS2","created_at":"2026-05-18T12:32:31Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2018:ITBC7TS2GNKNSYQEDAKIU6QRK6","target":"record","payload":{"canonical_record":{"source":{"id":"1804.01718","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"nucl-th","submitted_at":"2018-04-05T08:08:17Z","cross_cats_sorted":[],"title_canon_sha256":"411a2c2c0e1e3ffacc19edd5f6efdb0d5772824c5b5572a02e516e17fcd93726","abstract_canon_sha256":"11fc4b0c9b02cad6416737c919f9e6c9cb68cefb99936f5bd8b3664b75c78841"},"schema_version":"1.0"},"canonical_sha256":"44c22fce5a3354d9620418148a7a11578e7bd4e5093606efd3dc6a421174cae9","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:09:14.992920Z","signature_b64":"Cm/rk5UEWwwUw8pZ6mTF0RNWtHGl9rS4qUOamC6I2bCWynorale7evM9lAZANy2zVz28Un320P2V+9w+dzbXBA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"44c22fce5a3354d9620418148a7a11578e7bd4e5093606efd3dc6a421174cae9","last_reissued_at":"2026-05-18T00:09:14.992187Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:09:14.992187Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1804.01718","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":"2026-05-18T00:09:14Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"KyAB/JgECLhU0Aq6ICFbbsb79jY191hHOSnW/eJK3BOyjo7QOfMVsT68/i1Q3roF6rJZKktJQ2x+wzEwrc/QDA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-31T09:02:19.680448Z"},"content_sha256":"c3eda645d8e639d62bb168a781492090908e2ae83d35124ac5a0423ea5b2f0c6","schema_version":"1.0","event_id":"sha256:c3eda645d8e639d62bb168a781492090908e2ae83d35124ac5a0423ea5b2f0c6"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2018:ITBC7TS2GNKNSYQEDAKIU6QRK6","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Computing the dipole polarizability of 48Ca with increased precision","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"nucl-th","authors_text":"Gaute Hagen, Mirko Miorelli, Sonia Bacca, Thomas Papenbrock","submitted_at":"2018-04-05T08:08:17Z","abstract_excerpt":"We compute the electric dipole polarizability of 48Ca with an increased precision by including more correlations than in previous studies. Employing the coupled-cluster method we go beyond singles and doubles excitations and include leading-order three-particle-three-hole (3p-3h) excitations for the ground state, excited states, and the similarity transformed operator. We study electromagnetic sum rules, such as the bremsstrahlung sum rule m_0 and the polarizability sum rule alpha_D using interactions from chiral effective field theory. To gauge the quality of our coupled-cluster approximation"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1804.01718","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":"2026-05-18T00:09:14Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"pLk+ZxNdLp6f78tZ0lKwYZxFIIos5eKkkardZXA2AYPdoYH/597MWyxW9ixgN4mcSlO/eFLMMxNpToHxIOr1AQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-31T09:02:19.681090Z"},"content_sha256":"47acc54c8b8ebaa0e298212f48d8d04488147f534fc5ac544b9196ccf0f9e2c7","schema_version":"1.0","event_id":"sha256:47acc54c8b8ebaa0e298212f48d8d04488147f534fc5ac544b9196ccf0f9e2c7"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/ITBC7TS2GNKNSYQEDAKIU6QRK6/bundle.json","state_url":"https://pith.science/pith/ITBC7TS2GNKNSYQEDAKIU6QRK6/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/ITBC7TS2GNKNSYQEDAKIU6QRK6/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":"2026-05-31T09:02:19Z","links":{"resolver":"https://pith.science/pith/ITBC7TS2GNKNSYQEDAKIU6QRK6","bundle":"https://pith.science/pith/ITBC7TS2GNKNSYQEDAKIU6QRK6/bundle.json","state":"https://pith.science/pith/ITBC7TS2GNKNSYQEDAKIU6QRK6/state.json","well_known_bundle":"https://pith.science/.well-known/pith/ITBC7TS2GNKNSYQEDAKIU6QRK6/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2018:ITBC7TS2GNKNSYQEDAKIU6QRK6","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":"11fc4b0c9b02cad6416737c919f9e6c9cb68cefb99936f5bd8b3664b75c78841","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"nucl-th","submitted_at":"2018-04-05T08:08:17Z","title_canon_sha256":"411a2c2c0e1e3ffacc19edd5f6efdb0d5772824c5b5572a02e516e17fcd93726"},"schema_version":"1.0","source":{"id":"1804.01718","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1804.01718","created_at":"2026-05-18T00:09:14Z"},{"alias_kind":"arxiv_version","alias_value":"1804.01718v2","created_at":"2026-05-18T00:09:14Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1804.01718","created_at":"2026-05-18T00:09:14Z"},{"alias_kind":"pith_short_12","alias_value":"ITBC7TS2GNKN","created_at":"2026-05-18T12:32:31Z"},{"alias_kind":"pith_short_16","alias_value":"ITBC7TS2GNKNSYQE","created_at":"2026-05-18T12:32:31Z"},{"alias_kind":"pith_short_8","alias_value":"ITBC7TS2","created_at":"2026-05-18T12:32:31Z"}],"graph_snapshots":[{"event_id":"sha256:47acc54c8b8ebaa0e298212f48d8d04488147f534fc5ac544b9196ccf0f9e2c7","target":"graph","created_at":"2026-05-18T00:09:14Z","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":"We compute the electric dipole polarizability of 48Ca with an increased precision by including more correlations than in previous studies. Employing the coupled-cluster method we go beyond singles and doubles excitations and include leading-order three-particle-three-hole (3p-3h) excitations for the ground state, excited states, and the similarity transformed operator. We study electromagnetic sum rules, such as the bremsstrahlung sum rule m_0 and the polarizability sum rule alpha_D using interactions from chiral effective field theory. To gauge the quality of our coupled-cluster approximation","authors_text":"Gaute Hagen, Mirko Miorelli, Sonia Bacca, Thomas Papenbrock","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"nucl-th","submitted_at":"2018-04-05T08:08:17Z","title":"Computing the dipole polarizability of 48Ca with increased precision"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1804.01718","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:c3eda645d8e639d62bb168a781492090908e2ae83d35124ac5a0423ea5b2f0c6","target":"record","created_at":"2026-05-18T00:09:14Z","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":"11fc4b0c9b02cad6416737c919f9e6c9cb68cefb99936f5bd8b3664b75c78841","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"nucl-th","submitted_at":"2018-04-05T08:08:17Z","title_canon_sha256":"411a2c2c0e1e3ffacc19edd5f6efdb0d5772824c5b5572a02e516e17fcd93726"},"schema_version":"1.0","source":{"id":"1804.01718","kind":"arxiv","version":2}},"canonical_sha256":"44c22fce5a3354d9620418148a7a11578e7bd4e5093606efd3dc6a421174cae9","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"44c22fce5a3354d9620418148a7a11578e7bd4e5093606efd3dc6a421174cae9","first_computed_at":"2026-05-18T00:09:14.992187Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:09:14.992187Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"Cm/rk5UEWwwUw8pZ6mTF0RNWtHGl9rS4qUOamC6I2bCWynorale7evM9lAZANy2zVz28Un320P2V+9w+dzbXBA==","signature_status":"signed_v1","signed_at":"2026-05-18T00:09:14.992920Z","signed_message":"canonical_sha256_bytes"},"source_id":"1804.01718","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:c3eda645d8e639d62bb168a781492090908e2ae83d35124ac5a0423ea5b2f0c6","sha256:47acc54c8b8ebaa0e298212f48d8d04488147f534fc5ac544b9196ccf0f9e2c7"],"state_sha256":"5e5897d1284fb6ea9083e73aa48978661bbd0691d9f2c665ebecf448cc02e1af"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"/2ERQc/FtlqHFmdoDhrOU+sWFfDVcws49GPWtj2He9S8EGby9GkrD+7KBBBzRp7sdfXWZGId7/Pj+UTiHFkIBg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-31T09:02:19.684121Z","bundle_sha256":"e794c4a9c079427d88ca3e197f15f13589295812451ba1b1ecc34666ff9ce389"}}