{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2012:TAJSOLXT4O3EAXJMBBTNV7FFT2","short_pith_number":"pith:TAJSOLXT","canonical_record":{"source":{"id":"1202.0244","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"nucl-ex","submitted_at":"2012-02-01T18:50:17Z","cross_cats_sorted":["astro-ph.SR","nucl-th"],"title_canon_sha256":"f6b839a2f0578a077f86a46dfb32f440cc26e3edfc7e9b623405bdf945638dee","abstract_canon_sha256":"dcec96be10066316e2cf9b9443f26e6e8a8573a7ee882e53e6a197ae0cc6b653"},"schema_version":"1.0"},"canonical_sha256":"9813272ef3e3b6405d2c0866dafca59eb5f90878c180e1d05da54fabf8a052fc","source":{"kind":"arxiv","id":"1202.0244","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1202.0244","created_at":"2026-05-18T01:58:36Z"},{"alias_kind":"arxiv_version","alias_value":"1202.0244v1","created_at":"2026-05-18T01:58:36Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1202.0244","created_at":"2026-05-18T01:58:36Z"},{"alias_kind":"pith_short_12","alias_value":"TAJSOLXT4O3E","created_at":"2026-05-18T12:27:23Z"},{"alias_kind":"pith_short_16","alias_value":"TAJSOLXT4O3EAXJM","created_at":"2026-05-18T12:27:23Z"},{"alias_kind":"pith_short_8","alias_value":"TAJSOLXT","created_at":"2026-05-18T12:27:23Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2012:TAJSOLXT4O3EAXJMBBTNV7FFT2","target":"record","payload":{"canonical_record":{"source":{"id":"1202.0244","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"nucl-ex","submitted_at":"2012-02-01T18:50:17Z","cross_cats_sorted":["astro-ph.SR","nucl-th"],"title_canon_sha256":"f6b839a2f0578a077f86a46dfb32f440cc26e3edfc7e9b623405bdf945638dee","abstract_canon_sha256":"dcec96be10066316e2cf9b9443f26e6e8a8573a7ee882e53e6a197ae0cc6b653"},"schema_version":"1.0"},"canonical_sha256":"9813272ef3e3b6405d2c0866dafca59eb5f90878c180e1d05da54fabf8a052fc","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:58:36.743353Z","signature_b64":"CO3dgyZ005nyIq50TvlrbvCo+RmFiwRGR1BbIJevJIZRo8L0HROLEOxAqajOB2OwHmAwGvAHB+JKKTENR38+Cw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"9813272ef3e3b6405d2c0866dafca59eb5f90878c180e1d05da54fabf8a052fc","last_reissued_at":"2026-05-18T01:58:36.742755Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:58:36.742755Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1202.0244","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":"2026-05-18T01:58:36Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"OWGx/b6Brxnw0UPRGC5qk+GanTDT6pP0j239msE+4B9efgDR2sPT3yIOsJ0uniFBwr8VACARQZpCsEpCx6ptBw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-26T17:01:13.596741Z"},"content_sha256":"696b7539dc28ac96106bd9d4a7af0e1c8539a385544de206e084e396f3d96683","schema_version":"1.0","event_id":"sha256:696b7539dc28ac96106bd9d4a7af0e1c8539a385544de206e084e396f3d96683"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2012:TAJSOLXT4O3EAXJMBBTNV7FFT2","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Abrupt Change in Radiation-Width Distribution for 147Sm Neutron Resonances","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.SR","nucl-th"],"primary_cat":"nucl-ex","authors_text":"D. J. Vieira, J. L. Ullmann, J. M. O'Donnell, J. M. Wouters, P. E. Koehler, R. Reifarth, R. S. Rundberg, T. A. Bredeweg","submitted_at":"2012-02-01T18:50:17Z","abstract_excerpt":"We obtained total radiation widths of s-wave resonances through R-matrix analysis of 147Sm(n,gamma) cross-sections. Distributions of these widths differ markedly for resonances below and above 300 eV, in stark contrast to long-established theory. We show that this change, as well as a similar change in the neutron-width distribution reported previously, are reflected in abrupt increases in both the average 147Sm(n,gamma) cross section and fluctuations about the average near 300 eV. Such effects could have important consequences for applications such as nuclear astrophysics and nuclear critical"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1202.0244","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":"2026-05-18T01:58:36Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"gXzwxcEUGPohYy2vOOFeNOZqX3fEqnRL0VWLqY0dqxaQ4wAAbOCc/uJEOS6apvG3UJ7QcilG+7M00nYur6i2Bw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-26T17:01:13.597404Z"},"content_sha256":"abec665f4acf10e0d6780d092629ab7de1cdfa68c8124df133911914b923db06","schema_version":"1.0","event_id":"sha256:abec665f4acf10e0d6780d092629ab7de1cdfa68c8124df133911914b923db06"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/TAJSOLXT4O3EAXJMBBTNV7FFT2/bundle.json","state_url":"https://pith.science/pith/TAJSOLXT4O3EAXJMBBTNV7FFT2/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/TAJSOLXT4O3EAXJMBBTNV7FFT2/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":"2026-05-26T17:01:13Z","links":{"resolver":"https://pith.science/pith/TAJSOLXT4O3EAXJMBBTNV7FFT2","bundle":"https://pith.science/pith/TAJSOLXT4O3EAXJMBBTNV7FFT2/bundle.json","state":"https://pith.science/pith/TAJSOLXT4O3EAXJMBBTNV7FFT2/state.json","well_known_bundle":"https://pith.science/.well-known/pith/TAJSOLXT4O3EAXJMBBTNV7FFT2/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2012:TAJSOLXT4O3EAXJMBBTNV7FFT2","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":"dcec96be10066316e2cf9b9443f26e6e8a8573a7ee882e53e6a197ae0cc6b653","cross_cats_sorted":["astro-ph.SR","nucl-th"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"nucl-ex","submitted_at":"2012-02-01T18:50:17Z","title_canon_sha256":"f6b839a2f0578a077f86a46dfb32f440cc26e3edfc7e9b623405bdf945638dee"},"schema_version":"1.0","source":{"id":"1202.0244","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1202.0244","created_at":"2026-05-18T01:58:36Z"},{"alias_kind":"arxiv_version","alias_value":"1202.0244v1","created_at":"2026-05-18T01:58:36Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1202.0244","created_at":"2026-05-18T01:58:36Z"},{"alias_kind":"pith_short_12","alias_value":"TAJSOLXT4O3E","created_at":"2026-05-18T12:27:23Z"},{"alias_kind":"pith_short_16","alias_value":"TAJSOLXT4O3EAXJM","created_at":"2026-05-18T12:27:23Z"},{"alias_kind":"pith_short_8","alias_value":"TAJSOLXT","created_at":"2026-05-18T12:27:23Z"}],"graph_snapshots":[{"event_id":"sha256:abec665f4acf10e0d6780d092629ab7de1cdfa68c8124df133911914b923db06","target":"graph","created_at":"2026-05-18T01:58:36Z","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 obtained total radiation widths of s-wave resonances through R-matrix analysis of 147Sm(n,gamma) cross-sections. Distributions of these widths differ markedly for resonances below and above 300 eV, in stark contrast to long-established theory. We show that this change, as well as a similar change in the neutron-width distribution reported previously, are reflected in abrupt increases in both the average 147Sm(n,gamma) cross section and fluctuations about the average near 300 eV. Such effects could have important consequences for applications such as nuclear astrophysics and nuclear critical","authors_text":"D. J. Vieira, J. L. Ullmann, J. M. O'Donnell, J. M. Wouters, P. E. Koehler, R. Reifarth, R. S. Rundberg, T. A. Bredeweg","cross_cats":["astro-ph.SR","nucl-th"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"nucl-ex","submitted_at":"2012-02-01T18:50:17Z","title":"Abrupt Change in Radiation-Width Distribution for 147Sm Neutron Resonances"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1202.0244","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":"sha256:696b7539dc28ac96106bd9d4a7af0e1c8539a385544de206e084e396f3d96683","target":"record","created_at":"2026-05-18T01:58:36Z","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":"dcec96be10066316e2cf9b9443f26e6e8a8573a7ee882e53e6a197ae0cc6b653","cross_cats_sorted":["astro-ph.SR","nucl-th"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"nucl-ex","submitted_at":"2012-02-01T18:50:17Z","title_canon_sha256":"f6b839a2f0578a077f86a46dfb32f440cc26e3edfc7e9b623405bdf945638dee"},"schema_version":"1.0","source":{"id":"1202.0244","kind":"arxiv","version":1}},"canonical_sha256":"9813272ef3e3b6405d2c0866dafca59eb5f90878c180e1d05da54fabf8a052fc","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"9813272ef3e3b6405d2c0866dafca59eb5f90878c180e1d05da54fabf8a052fc","first_computed_at":"2026-05-18T01:58:36.742755Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:58:36.742755Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"CO3dgyZ005nyIq50TvlrbvCo+RmFiwRGR1BbIJevJIZRo8L0HROLEOxAqajOB2OwHmAwGvAHB+JKKTENR38+Cw==","signature_status":"signed_v1","signed_at":"2026-05-18T01:58:36.743353Z","signed_message":"canonical_sha256_bytes"},"source_id":"1202.0244","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:696b7539dc28ac96106bd9d4a7af0e1c8539a385544de206e084e396f3d96683","sha256:abec665f4acf10e0d6780d092629ab7de1cdfa68c8124df133911914b923db06"],"state_sha256":"af4eb4e5ccafdd49a5f6b1fb336634d136083d794d5efab3f96656c9767eb24d"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"X7cIWF+HAVEwDX9TeXP+niH1qQ8xr5PDpfryv7t7swNkeGaAdgUq3+/8SLc6RqUWzJIh8di7urHcDnF8uyhnBA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-26T17:01:13.601134Z","bundle_sha256":"4e1f37405bc76726861f059cbdc69f99f8b1527e5f9026c4252ed6f6043f2163"}}