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With the CD-Bonn 2000 NN potential we found point-proton root-mean-square (rms) radii of 4He and 6He 1.45(1) fm and 1.89(4), respectively, in agreement with experiment and predict the 8He point proton rms radius to be 1.88("},"verification_status":{"content_addressed":true,"pith_receipt":true,"author_attested":false,"weak_author_claims":0,"strong_author_claims":0,"externally_anchored":false,"storage_verified":false,"citation_signatures":0,"replication_records":0,"graph_snapshot":true,"references_resolved":false,"formal_links_present":false},"canonical_record":{"source":{"id":"nucl-th/0512015","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"nucl-th","submitted_at":"2005-12-05T23:01:49Z","cross_cats_sorted":[],"title_canon_sha256":"577e90e734ac784edbc3299a72b09c5cd396661d7d66b5f025c7b43cf56578ed","abstract_canon_sha256":"9127ac406d88160b543757825017bff0a4ca7728ed73b53c66cb9c3a8df033ef"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-04T16:57:01.927763Z","signature_b64":"SV0lotpS3YsAzI0ZlKu9jpWggcrG3gbfbyH/tqUMgQqb2MO4VufPK35RByFpCtS8xHP543ZNBZ7Tpge7877rAQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"3fa762dace9f3e99821829d8c79d98d8de75b848e9685e1fe81bd4ff2fb78724","last_reissued_at":"2026-07-04T16:57:01.927405Z","signature_status":"signed_v1","first_computed_at":"2026-07-04T16:57:01.927405Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Proton radii of 4,6,8He isotopes from high-precision nucleon-nucleon interactions","license":"","headline":"","cross_cats":[],"primary_cat":"nucl-th","authors_text":"E. 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