{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:1999:3KFAM5R5UEKWBZPBUZCBKXENYF","short_pith_number":"pith:3KFAM5R5","canonical_record":{"source":{"id":"nucl-th/9908073","kind":"arxiv","version":3},"metadata":{"license":"","primary_cat":"nucl-th","submitted_at":"1999-08-26T07:33:57Z","cross_cats_sorted":[],"title_canon_sha256":"61815beb580d3ccffda3109c1de88562d7924671810453dbe69507b38179b303","abstract_canon_sha256":"68632767df930c733dad35a867b5d92be2adf6e5e0507640445dee6d8d311775"},"schema_version":"1.0"},"canonical_sha256":"da8a06763da11560e5e1a644155c8dc15c8fb7385d76b04ff696052c0b9e25bd","source":{"kind":"arxiv","id":"nucl-th/9908073","version":3},"source_aliases":[{"alias_kind":"arxiv","alias_value":"nucl-th/9908073","created_at":"2026-05-18T02:35:31Z"},{"alias_kind":"arxiv_version","alias_value":"nucl-th/9908073v3","created_at":"2026-05-18T02:35:31Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.nucl-th/9908073","created_at":"2026-05-18T02:35:31Z"},{"alias_kind":"pith_short_12","alias_value":"3KFAM5R5UEKW","created_at":"2026-05-18T12:25:49Z"},{"alias_kind":"pith_short_16","alias_value":"3KFAM5R5UEKWBZPB","created_at":"2026-05-18T12:25:49Z"},{"alias_kind":"pith_short_8","alias_value":"3KFAM5R5","created_at":"2026-05-18T12:25:49Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:1999:3KFAM5R5UEKWBZPBUZCBKXENYF","target":"record","payload":{"canonical_record":{"source":{"id":"nucl-th/9908073","kind":"arxiv","version":3},"metadata":{"license":"","primary_cat":"nucl-th","submitted_at":"1999-08-26T07:33:57Z","cross_cats_sorted":[],"title_canon_sha256":"61815beb580d3ccffda3109c1de88562d7924671810453dbe69507b38179b303","abstract_canon_sha256":"68632767df930c733dad35a867b5d92be2adf6e5e0507640445dee6d8d311775"},"schema_version":"1.0"},"canonical_sha256":"da8a06763da11560e5e1a644155c8dc15c8fb7385d76b04ff696052c0b9e25bd","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:35:31.387783Z","signature_b64":"jh+7fatunZOjICpqTe3HhL8P7kwNwVa2rxHSzf3SL9J6uiHl3h7NKahVCk7z36nApx5X6Cp3qnenHQf32AsZBg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"da8a06763da11560e5e1a644155c8dc15c8fb7385d76b04ff696052c0b9e25bd","last_reissued_at":"2026-05-18T02:35:31.387351Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:35:31.387351Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"nucl-th/9908073","source_version":3,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T02:35:31Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"ceqF9tELVr/B7Ftv7mB6jIt+iA+IqvX/84ijCMRQY8V23II9Aajy7qfJx0Zj9Xd0CWSH7Zb4gsf6FC/oxjJXAw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-30T08:07:42.630096Z"},"content_sha256":"f67e0e160ac7ca49126bc667d8207c8c151282216d3dbf65c0a3cb630b1aeb5e","schema_version":"1.0","event_id":"sha256:f67e0e160ac7ca49126bc667d8207c8c151282216d3dbf65c0a3cb630b1aeb5e"},{"event_type":"graph_snapshot","subject_pith_number":"pith:1999:3KFAM5R5UEKWBZPBUZCBKXENYF","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"A Higher-Order Calculation of $np$ Scattering in Cut-Off Effective Field Theory","license":"","headline":"","cross_cats":[],"primary_cat":"nucl-th","authors_text":"C. H. Hyun, D.-P. Min, T.-S. Park","submitted_at":"1999-08-26T07:33:57Z","abstract_excerpt":"We report a next-to-leading-order (NLO) chiral perturbation theory calculation of the neutron-proton scattering cross section in the ${}^1S_0$ channel using a cut-off regularization. The inclusion of two-pion exchanges in the irreducible diagrams -- or potential -- figuring at NLO is found to be important in enlarging the domain of validity of the effective field theory. We are able to reproduce the {\\it empirical} scattering phase shift up to p=300 MeV -- which is comparable to the cutoff scale involved -- with an agreement which is superior to results of other effective field theory approach"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"nucl-th/9908073","kind":"arxiv","version":3},"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":"2026-05-18T02:35:31Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"9AuK6SHhra5J+f/6Sf72l16AGHhHKtqc3FmQ1tEnbysR5HhDSsNu25JxX1604ztx+iv3rAsHrzPD/PsmfWK4Ag==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-30T08:07:42.630456Z"},"content_sha256":"572d83e625681d8fe45c21cd9913da9a9817aa8287844ca6ef26ce3c0e6a9ab7","schema_version":"1.0","event_id":"sha256:572d83e625681d8fe45c21cd9913da9a9817aa8287844ca6ef26ce3c0e6a9ab7"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/3KFAM5R5UEKWBZPBUZCBKXENYF/bundle.json","state_url":"https://pith.science/pith/3KFAM5R5UEKWBZPBUZCBKXENYF/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/3KFAM5R5UEKWBZPBUZCBKXENYF/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":"2026-05-30T08:07:42Z","links":{"resolver":"https://pith.science/pith/3KFAM5R5UEKWBZPBUZCBKXENYF","bundle":"https://pith.science/pith/3KFAM5R5UEKWBZPBUZCBKXENYF/bundle.json","state":"https://pith.science/pith/3KFAM5R5UEKWBZPBUZCBKXENYF/state.json","well_known_bundle":"https://pith.science/.well-known/pith/3KFAM5R5UEKWBZPBUZCBKXENYF/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:1999:3KFAM5R5UEKWBZPBUZCBKXENYF","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":"68632767df930c733dad35a867b5d92be2adf6e5e0507640445dee6d8d311775","cross_cats_sorted":[],"license":"","primary_cat":"nucl-th","submitted_at":"1999-08-26T07:33:57Z","title_canon_sha256":"61815beb580d3ccffda3109c1de88562d7924671810453dbe69507b38179b303"},"schema_version":"1.0","source":{"id":"nucl-th/9908073","kind":"arxiv","version":3}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"nucl-th/9908073","created_at":"2026-05-18T02:35:31Z"},{"alias_kind":"arxiv_version","alias_value":"nucl-th/9908073v3","created_at":"2026-05-18T02:35:31Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.nucl-th/9908073","created_at":"2026-05-18T02:35:31Z"},{"alias_kind":"pith_short_12","alias_value":"3KFAM5R5UEKW","created_at":"2026-05-18T12:25:49Z"},{"alias_kind":"pith_short_16","alias_value":"3KFAM5R5UEKWBZPB","created_at":"2026-05-18T12:25:49Z"},{"alias_kind":"pith_short_8","alias_value":"3KFAM5R5","created_at":"2026-05-18T12:25:49Z"}],"graph_snapshots":[{"event_id":"sha256:572d83e625681d8fe45c21cd9913da9a9817aa8287844ca6ef26ce3c0e6a9ab7","target":"graph","created_at":"2026-05-18T02:35:31Z","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 report a next-to-leading-order (NLO) chiral perturbation theory calculation of the neutron-proton scattering cross section in the ${}^1S_0$ channel using a cut-off regularization. The inclusion of two-pion exchanges in the irreducible diagrams -- or potential -- figuring at NLO is found to be important in enlarging the domain of validity of the effective field theory. We are able to reproduce the {\\it empirical} scattering phase shift up to p=300 MeV -- which is comparable to the cutoff scale involved -- with an agreement which is superior to results of other effective field theory approach","authors_text":"C. H. Hyun, D.-P. Min, T.-S. Park","cross_cats":[],"headline":"","license":"","primary_cat":"nucl-th","submitted_at":"1999-08-26T07:33:57Z","title":"A Higher-Order Calculation of $np$ Scattering in Cut-Off Effective Field Theory"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"nucl-th/9908073","kind":"arxiv","version":3},"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:f67e0e160ac7ca49126bc667d8207c8c151282216d3dbf65c0a3cb630b1aeb5e","target":"record","created_at":"2026-05-18T02:35:31Z","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":"68632767df930c733dad35a867b5d92be2adf6e5e0507640445dee6d8d311775","cross_cats_sorted":[],"license":"","primary_cat":"nucl-th","submitted_at":"1999-08-26T07:33:57Z","title_canon_sha256":"61815beb580d3ccffda3109c1de88562d7924671810453dbe69507b38179b303"},"schema_version":"1.0","source":{"id":"nucl-th/9908073","kind":"arxiv","version":3}},"canonical_sha256":"da8a06763da11560e5e1a644155c8dc15c8fb7385d76b04ff696052c0b9e25bd","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"da8a06763da11560e5e1a644155c8dc15c8fb7385d76b04ff696052c0b9e25bd","first_computed_at":"2026-05-18T02:35:31.387351Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:35:31.387351Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"jh+7fatunZOjICpqTe3HhL8P7kwNwVa2rxHSzf3SL9J6uiHl3h7NKahVCk7z36nApx5X6Cp3qnenHQf32AsZBg==","signature_status":"signed_v1","signed_at":"2026-05-18T02:35:31.387783Z","signed_message":"canonical_sha256_bytes"},"source_id":"nucl-th/9908073","source_kind":"arxiv","source_version":3}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:f67e0e160ac7ca49126bc667d8207c8c151282216d3dbf65c0a3cb630b1aeb5e","sha256:572d83e625681d8fe45c21cd9913da9a9817aa8287844ca6ef26ce3c0e6a9ab7"],"state_sha256":"13e6e9a8f6d820baa4119c3614f4f0d65c6818ff4d40db6432715d51e09b9f25"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"1b6uSWdPwdGwzNn9AGgSsgsNfu4r26sS2Gs7vMbILciMKVT8idRoIMZooWEyjmbp+ewKKtDNUNHe/XgeHmU0Cw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-30T08:07:42.632417Z","bundle_sha256":"d217d21b66cf11c5425a8a38bf06c08bc38886c5fa4ea6688a73f3907b672457"}}