{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2013:4WM7T25SGOWYH2KULBZPJCD6AN","short_pith_number":"pith:4WM7T25S","canonical_record":{"source":{"id":"1312.7476","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"nucl-ex","submitted_at":"2013-12-28T21:48:44Z","cross_cats_sorted":[],"title_canon_sha256":"306cd110388e11054bef2e436f0957b2e8dd704b298055e7f1efa743a89119e9","abstract_canon_sha256":"42d04472640efafb1d8ad5f9b5652e66b65ba85d1d7e7d53e007d4a05aa0aa4c"},"schema_version":"1.0"},"canonical_sha256":"e599f9ebb233ad83e9545872f4887e0370d0088f1328cf5744ae0492e20dab1f","source":{"kind":"arxiv","id":"1312.7476","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1312.7476","created_at":"2026-05-18T03:01:57Z"},{"alias_kind":"arxiv_version","alias_value":"1312.7476v1","created_at":"2026-05-18T03:01:57Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1312.7476","created_at":"2026-05-18T03:01:57Z"},{"alias_kind":"pith_short_12","alias_value":"4WM7T25SGOWY","created_at":"2026-05-18T12:27:34Z"},{"alias_kind":"pith_short_16","alias_value":"4WM7T25SGOWYH2KU","created_at":"2026-05-18T12:27:34Z"},{"alias_kind":"pith_short_8","alias_value":"4WM7T25S","created_at":"2026-05-18T12:27:34Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2013:4WM7T25SGOWYH2KULBZPJCD6AN","target":"record","payload":{"canonical_record":{"source":{"id":"1312.7476","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"nucl-ex","submitted_at":"2013-12-28T21:48:44Z","cross_cats_sorted":[],"title_canon_sha256":"306cd110388e11054bef2e436f0957b2e8dd704b298055e7f1efa743a89119e9","abstract_canon_sha256":"42d04472640efafb1d8ad5f9b5652e66b65ba85d1d7e7d53e007d4a05aa0aa4c"},"schema_version":"1.0"},"canonical_sha256":"e599f9ebb233ad83e9545872f4887e0370d0088f1328cf5744ae0492e20dab1f","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T03:01:57.939311Z","signature_b64":"1dig4bAwOAeNIdHZkzqMxNKqQ94rY2z5+jTZsZfKKwu/G/ppmHhmWVJ0xTOvHp5Ci/tImTHZ1PIzaS6cQIEvAA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"e599f9ebb233ad83e9545872f4887e0370d0088f1328cf5744ae0492e20dab1f","last_reissued_at":"2026-05-18T03:01:57.938442Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T03:01:57.938442Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1312.7476","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":"2026-05-18T03:01:57Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Vtu/Jz0/ws/AAbmYN61MQMqlES0nzheQJdQ3x7P/mFDeoUNm+UPxNWz6gx/8pcJrL32DeyZ+AvZTxnJDYIk0Ag==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-20T12:47:22.516654Z"},"content_sha256":"d97d324e21b8309589f83b61faa6e52c289d167448e999378c8a2a1991d21cad","schema_version":"1.0","event_id":"sha256:d97d324e21b8309589f83b61faa6e52c289d167448e999378c8a2a1991d21cad"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2013:4WM7T25SGOWYH2KULBZPJCD6AN","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Nuclear Physics Experiments with Ion Storage Rings","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"nucl-ex","authors_text":"A. Heinz, A. Ozawa, B. H. Sun, C. Brandau, C. Kozhuharov, D. Schneider, F. Bosch, F. Nolden, H. Geissel, H. Simon, H. S. Xu, H. Weick, I. Dillmann, K. Blaum, L. X. Chen, M. Heil, M. Lestinsky, M. S. Sanjari, M. Steck, M. Wakasugi, M. W. Reed, N. Kalantar-Nayestanaki, N. Winckler, P. Egelhof, P. J. Woods, P. M. Walker, R. E. Grisenti, R. Kn\\\"obel, R. Raabe, R. Reifarth, S. Bishop, S. Hagmann, T. Nilsson, T. St\\\"ohlker, T. Uesaka, T. Yamaguchi, X. L. Tu, X. W. Ma, Y. H. Zhang, Yu. A. Litvinov, Y. Yamaguchi","submitted_at":"2013-12-28T21:48:44Z","abstract_excerpt":"In the last two decades a number of nuclear structure and astrophysics experiments were performed at heavy-ion storage rings employing unique experimental conditions offered by such machines. Furthermore, building on the experience gained at the two facilities presently in operation, several new storage ring projects were launched worldwide. This contribution is intended to provide a brief review of the fast growing field of nuclear structure and astrophysics research at storage rings."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1312.7476","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":"2026-05-18T03:01:57Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"3L3qE28K6dNp7VClqj/tXy/QZ8N/ljzA3ds3FWQ8O30cxTlWpOfMsXa3kLuoMDji7nzGMMU5byu8pEAhQVPSBg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-20T12:47:22.517017Z"},"content_sha256":"c1001b8b2d2cf66d323c706fceb8774861d88e06847247395662d081831220cc","schema_version":"1.0","event_id":"sha256:c1001b8b2d2cf66d323c706fceb8774861d88e06847247395662d081831220cc"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/4WM7T25SGOWYH2KULBZPJCD6AN/bundle.json","state_url":"https://pith.science/pith/4WM7T25SGOWYH2KULBZPJCD6AN/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/4WM7T25SGOWYH2KULBZPJCD6AN/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":"2026-05-20T12:47:22Z","links":{"resolver":"https://pith.science/pith/4WM7T25SGOWYH2KULBZPJCD6AN","bundle":"https://pith.science/pith/4WM7T25SGOWYH2KULBZPJCD6AN/bundle.json","state":"https://pith.science/pith/4WM7T25SGOWYH2KULBZPJCD6AN/state.json","well_known_bundle":"https://pith.science/.well-known/pith/4WM7T25SGOWYH2KULBZPJCD6AN/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2013:4WM7T25SGOWYH2KULBZPJCD6AN","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":"42d04472640efafb1d8ad5f9b5652e66b65ba85d1d7e7d53e007d4a05aa0aa4c","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"nucl-ex","submitted_at":"2013-12-28T21:48:44Z","title_canon_sha256":"306cd110388e11054bef2e436f0957b2e8dd704b298055e7f1efa743a89119e9"},"schema_version":"1.0","source":{"id":"1312.7476","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1312.7476","created_at":"2026-05-18T03:01:57Z"},{"alias_kind":"arxiv_version","alias_value":"1312.7476v1","created_at":"2026-05-18T03:01:57Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1312.7476","created_at":"2026-05-18T03:01:57Z"},{"alias_kind":"pith_short_12","alias_value":"4WM7T25SGOWY","created_at":"2026-05-18T12:27:34Z"},{"alias_kind":"pith_short_16","alias_value":"4WM7T25SGOWYH2KU","created_at":"2026-05-18T12:27:34Z"},{"alias_kind":"pith_short_8","alias_value":"4WM7T25S","created_at":"2026-05-18T12:27:34Z"}],"graph_snapshots":[{"event_id":"sha256:c1001b8b2d2cf66d323c706fceb8774861d88e06847247395662d081831220cc","target":"graph","created_at":"2026-05-18T03:01:57Z","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":"In the last two decades a number of nuclear structure and astrophysics experiments were performed at heavy-ion storage rings employing unique experimental conditions offered by such machines. Furthermore, building on the experience gained at the two facilities presently in operation, several new storage ring projects were launched worldwide. This contribution is intended to provide a brief review of the fast growing field of nuclear structure and astrophysics research at storage rings.","authors_text":"A. Heinz, A. Ozawa, B. H. Sun, C. Brandau, C. Kozhuharov, D. Schneider, F. Bosch, F. Nolden, H. Geissel, H. Simon, H. S. Xu, H. Weick, I. Dillmann, K. Blaum, L. X. Chen, M. Heil, M. Lestinsky, M. S. Sanjari, M. Steck, M. Wakasugi, M. W. Reed, N. Kalantar-Nayestanaki, N. Winckler, P. Egelhof, P. J. Woods, P. M. Walker, R. E. Grisenti, R. Kn\\\"obel, R. Raabe, R. Reifarth, S. Bishop, S. Hagmann, T. Nilsson, T. St\\\"ohlker, T. Uesaka, T. Yamaguchi, X. L. Tu, X. W. Ma, Y. H. Zhang, Yu. A. Litvinov, Y. Yamaguchi","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"nucl-ex","submitted_at":"2013-12-28T21:48:44Z","title":"Nuclear Physics Experiments with Ion Storage Rings"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1312.7476","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:d97d324e21b8309589f83b61faa6e52c289d167448e999378c8a2a1991d21cad","target":"record","created_at":"2026-05-18T03:01:57Z","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":"42d04472640efafb1d8ad5f9b5652e66b65ba85d1d7e7d53e007d4a05aa0aa4c","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"nucl-ex","submitted_at":"2013-12-28T21:48:44Z","title_canon_sha256":"306cd110388e11054bef2e436f0957b2e8dd704b298055e7f1efa743a89119e9"},"schema_version":"1.0","source":{"id":"1312.7476","kind":"arxiv","version":1}},"canonical_sha256":"e599f9ebb233ad83e9545872f4887e0370d0088f1328cf5744ae0492e20dab1f","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"e599f9ebb233ad83e9545872f4887e0370d0088f1328cf5744ae0492e20dab1f","first_computed_at":"2026-05-18T03:01:57.938442Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T03:01:57.938442Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"1dig4bAwOAeNIdHZkzqMxNKqQ94rY2z5+jTZsZfKKwu/G/ppmHhmWVJ0xTOvHp5Ci/tImTHZ1PIzaS6cQIEvAA==","signature_status":"signed_v1","signed_at":"2026-05-18T03:01:57.939311Z","signed_message":"canonical_sha256_bytes"},"source_id":"1312.7476","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:d97d324e21b8309589f83b61faa6e52c289d167448e999378c8a2a1991d21cad","sha256:c1001b8b2d2cf66d323c706fceb8774861d88e06847247395662d081831220cc"],"state_sha256":"c4aabde6ded8c6469f0947566ec6cb0fdf065dbdc14c453e898ac85621876596"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"MEnKziN46Enu3hxjyNXYiBM3ihHYr16tFBCVRVSjWa9eN7Bd+fLRvfOcaKqm3JDEv+FB7G7aIHqdQ7JcodZ6AQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-20T12:47:22.519310Z","bundle_sha256":"86a167a3f7c2bfaf82f682f68ba92e26f87db7c455a17ddb4fa3f58e68b2aed9"}}