{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2012:L5MSNXZAOQYQUNNFFQJBOD5HTX","short_pith_number":"pith:L5MSNXZA","canonical_record":{"source":{"id":"1209.2468","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"nucl-th","submitted_at":"2012-09-12T00:43:29Z","cross_cats_sorted":["nucl-ex"],"title_canon_sha256":"30772cfbe1863c40654d75ee4b653e37fec32179fd68ffd38c77ea86dfd52df5","abstract_canon_sha256":"01d690915a18992b139d994af17f2e2841eb66dde47e57dc4f96079909d43174"},"schema_version":"1.0"},"canonical_sha256":"5f5926df2074310a35a52c12170fa79deff623a1821f0aa0d57bded50dcbabab","source":{"kind":"arxiv","id":"1209.2468","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1209.2468","created_at":"2026-05-18T01:54:30Z"},{"alias_kind":"arxiv_version","alias_value":"1209.2468v2","created_at":"2026-05-18T01:54:30Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1209.2468","created_at":"2026-05-18T01:54:30Z"},{"alias_kind":"pith_short_12","alias_value":"L5MSNXZAOQYQ","created_at":"2026-05-18T12:27:14Z"},{"alias_kind":"pith_short_16","alias_value":"L5MSNXZAOQYQUNNF","created_at":"2026-05-18T12:27:14Z"},{"alias_kind":"pith_short_8","alias_value":"L5MSNXZA","created_at":"2026-05-18T12:27:14Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2012:L5MSNXZAOQYQUNNFFQJBOD5HTX","target":"record","payload":{"canonical_record":{"source":{"id":"1209.2468","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"nucl-th","submitted_at":"2012-09-12T00:43:29Z","cross_cats_sorted":["nucl-ex"],"title_canon_sha256":"30772cfbe1863c40654d75ee4b653e37fec32179fd68ffd38c77ea86dfd52df5","abstract_canon_sha256":"01d690915a18992b139d994af17f2e2841eb66dde47e57dc4f96079909d43174"},"schema_version":"1.0"},"canonical_sha256":"5f5926df2074310a35a52c12170fa79deff623a1821f0aa0d57bded50dcbabab","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:54:30.212000Z","signature_b64":"LnK01CsBaGCgeXFSeeqcqvCEI7ZcNX40tSATTqpj6TMls2r9Z1uE1ZVnChnKBiUjkWAAoNzQo610jPJr2DnnAQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"5f5926df2074310a35a52c12170fa79deff623a1821f0aa0d57bded50dcbabab","last_reissued_at":"2026-05-18T01:54:30.211303Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:54:30.211303Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1209.2468","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":"2026-05-18T01:54:30Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"6WgWQ1+sEEZwop1QIPYaSpFwQ2W/vDGUqlaZ0zG0+KpwNz5R3H2TbDSFMUscx2kpSsHNYuOKhxGLrEdzevOmBw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-10T01:32:47.490814Z"},"content_sha256":"69ed24ff34e9570f1efe6394a627d820b3a98dd4148cc6344d258f09af0345d2","schema_version":"1.0","event_id":"sha256:69ed24ff34e9570f1efe6394a627d820b3a98dd4148cc6344d258f09af0345d2"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2012:L5MSNXZAOQYQUNNFFQJBOD5HTX","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"The nuclear electric polarizability of 6He","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["nucl-ex"],"primary_cat":"nucl-th","authors_text":"Nir Barnea, Raymond Goerke, Sonia Bacca","submitted_at":"2012-09-12T00:43:29Z","abstract_excerpt":"We present an estimate of the nuclear electric polarizability of the 6He halo nucleus based on six-body microscopic calculations. Wave functions are obtained from semi-realistic two-body interactions using the hyperspherical harmonics expansion method. The polarizability is calculated as a sum rule of the dipole response function using the Lanczos algorithm and also by integrating the photo-absorption cross section calculated via the Lorentz integral transform method. We obtain alpha_E=1.00(14) fm^3, which is much smaller than the published value 1.99(40) fm^3 extracted from experimental data."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1209.2468","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":"2026-05-18T01:54:30Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Zwchg5E1stjHNv+8PMe6OwVUMv2unJG4HxKug1A16t0WxdneaQL36FEoD4brs1ozkHx/xIM0QTIjha7PjjzeAQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-10T01:32:47.491502Z"},"content_sha256":"19a90e9ed9b7ee6bea177b433b1d3922fbd41e99d8ee6330d61e5efe9b2f991a","schema_version":"1.0","event_id":"sha256:19a90e9ed9b7ee6bea177b433b1d3922fbd41e99d8ee6330d61e5efe9b2f991a"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/L5MSNXZAOQYQUNNFFQJBOD5HTX/bundle.json","state_url":"https://pith.science/pith/L5MSNXZAOQYQUNNFFQJBOD5HTX/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/L5MSNXZAOQYQUNNFFQJBOD5HTX/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":"2026-06-10T01:32:47Z","links":{"resolver":"https://pith.science/pith/L5MSNXZAOQYQUNNFFQJBOD5HTX","bundle":"https://pith.science/pith/L5MSNXZAOQYQUNNFFQJBOD5HTX/bundle.json","state":"https://pith.science/pith/L5MSNXZAOQYQUNNFFQJBOD5HTX/state.json","well_known_bundle":"https://pith.science/.well-known/pith/L5MSNXZAOQYQUNNFFQJBOD5HTX/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2012:L5MSNXZAOQYQUNNFFQJBOD5HTX","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":"01d690915a18992b139d994af17f2e2841eb66dde47e57dc4f96079909d43174","cross_cats_sorted":["nucl-ex"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"nucl-th","submitted_at":"2012-09-12T00:43:29Z","title_canon_sha256":"30772cfbe1863c40654d75ee4b653e37fec32179fd68ffd38c77ea86dfd52df5"},"schema_version":"1.0","source":{"id":"1209.2468","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1209.2468","created_at":"2026-05-18T01:54:30Z"},{"alias_kind":"arxiv_version","alias_value":"1209.2468v2","created_at":"2026-05-18T01:54:30Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1209.2468","created_at":"2026-05-18T01:54:30Z"},{"alias_kind":"pith_short_12","alias_value":"L5MSNXZAOQYQ","created_at":"2026-05-18T12:27:14Z"},{"alias_kind":"pith_short_16","alias_value":"L5MSNXZAOQYQUNNF","created_at":"2026-05-18T12:27:14Z"},{"alias_kind":"pith_short_8","alias_value":"L5MSNXZA","created_at":"2026-05-18T12:27:14Z"}],"graph_snapshots":[{"event_id":"sha256:19a90e9ed9b7ee6bea177b433b1d3922fbd41e99d8ee6330d61e5efe9b2f991a","target":"graph","created_at":"2026-05-18T01:54:30Z","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 present an estimate of the nuclear electric polarizability of the 6He halo nucleus based on six-body microscopic calculations. Wave functions are obtained from semi-realistic two-body interactions using the hyperspherical harmonics expansion method. The polarizability is calculated as a sum rule of the dipole response function using the Lanczos algorithm and also by integrating the photo-absorption cross section calculated via the Lorentz integral transform method. We obtain alpha_E=1.00(14) fm^3, which is much smaller than the published value 1.99(40) fm^3 extracted from experimental data.","authors_text":"Nir Barnea, Raymond Goerke, Sonia Bacca","cross_cats":["nucl-ex"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"nucl-th","submitted_at":"2012-09-12T00:43:29Z","title":"The nuclear electric polarizability of 6He"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1209.2468","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":"sha256:69ed24ff34e9570f1efe6394a627d820b3a98dd4148cc6344d258f09af0345d2","target":"record","created_at":"2026-05-18T01:54:30Z","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":"01d690915a18992b139d994af17f2e2841eb66dde47e57dc4f96079909d43174","cross_cats_sorted":["nucl-ex"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"nucl-th","submitted_at":"2012-09-12T00:43:29Z","title_canon_sha256":"30772cfbe1863c40654d75ee4b653e37fec32179fd68ffd38c77ea86dfd52df5"},"schema_version":"1.0","source":{"id":"1209.2468","kind":"arxiv","version":2}},"canonical_sha256":"5f5926df2074310a35a52c12170fa79deff623a1821f0aa0d57bded50dcbabab","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"5f5926df2074310a35a52c12170fa79deff623a1821f0aa0d57bded50dcbabab","first_computed_at":"2026-05-18T01:54:30.211303Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:54:30.211303Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"LnK01CsBaGCgeXFSeeqcqvCEI7ZcNX40tSATTqpj6TMls2r9Z1uE1ZVnChnKBiUjkWAAoNzQo610jPJr2DnnAQ==","signature_status":"signed_v1","signed_at":"2026-05-18T01:54:30.212000Z","signed_message":"canonical_sha256_bytes"},"source_id":"1209.2468","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:69ed24ff34e9570f1efe6394a627d820b3a98dd4148cc6344d258f09af0345d2","sha256:19a90e9ed9b7ee6bea177b433b1d3922fbd41e99d8ee6330d61e5efe9b2f991a"],"state_sha256":"c5f3ea72f322590be2bb8472a790727143fe61c64b5ac2358576ed0218b71a6c"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"44gLG1Rfwmn2vE9tCB/LNaNUAa/tg8mKQ3Ios48vYH0HRSLDJaIzzywYXXpHb6600KakqeaPepHfMWWq5jtBCA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-10T01:32:47.495617Z","bundle_sha256":"4c98618a493abab7d6618318a4482c965ab496115f6a12c305a2bdff80f037fb"}}