{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2009:TMJJHJT3YYZZPBWR6LAKCFF23C","short_pith_number":"pith:TMJJHJT3","canonical_record":{"source":{"id":"0912.3307","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"nucl-th","submitted_at":"2009-12-17T02:14:45Z","cross_cats_sorted":[],"title_canon_sha256":"ceba03fb9f5285e88c933e1969cafa1af7766b1879815592218a724a6e71fcf3","abstract_canon_sha256":"05bd75ffa4c881740d3464116438b0422a48f911d46e064c529e9494fb75348a"},"schema_version":"1.0"},"canonical_sha256":"9b1293a67bc6339786d1f2c0a114bad8b25a39f1ff9ddbc3e79f2d7481fe37aa","source":{"kind":"arxiv","id":"0912.3307","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"0912.3307","created_at":"2026-05-18T02:10:16Z"},{"alias_kind":"arxiv_version","alias_value":"0912.3307v1","created_at":"2026-05-18T02:10:16Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0912.3307","created_at":"2026-05-18T02:10:16Z"},{"alias_kind":"pith_short_12","alias_value":"TMJJHJT3YYZZ","created_at":"2026-05-18T12:26:01Z"},{"alias_kind":"pith_short_16","alias_value":"TMJJHJT3YYZZPBWR","created_at":"2026-05-18T12:26:01Z"},{"alias_kind":"pith_short_8","alias_value":"TMJJHJT3","created_at":"2026-05-18T12:26:01Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2009:TMJJHJT3YYZZPBWR6LAKCFF23C","target":"record","payload":{"canonical_record":{"source":{"id":"0912.3307","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"nucl-th","submitted_at":"2009-12-17T02:14:45Z","cross_cats_sorted":[],"title_canon_sha256":"ceba03fb9f5285e88c933e1969cafa1af7766b1879815592218a724a6e71fcf3","abstract_canon_sha256":"05bd75ffa4c881740d3464116438b0422a48f911d46e064c529e9494fb75348a"},"schema_version":"1.0"},"canonical_sha256":"9b1293a67bc6339786d1f2c0a114bad8b25a39f1ff9ddbc3e79f2d7481fe37aa","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:10:16.188824Z","signature_b64":"VY49nnquajKEH4F7i4xlFxhBuqGzZfyC/Smwyzv0baTvfVc2TM0UlDlfpgqdp+bFBVeCyP1biwhYkRUoXayaDg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"9b1293a67bc6339786d1f2c0a114bad8b25a39f1ff9ddbc3e79f2d7481fe37aa","last_reissued_at":"2026-05-18T02:10:16.188154Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:10:16.188154Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"0912.3307","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":"2026-05-18T02:10:16Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"mm5q3s2YEJRkBCjENNfQEEucVnYvHlZpM7fx67g39JS8vgohKvmXfvIW06AguAAj2fhAeKUi0jSPXJ0PkDwiCQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-08T04:14:40.525242Z"},"content_sha256":"343b8041f5eaba342206726507cad517845c2aa8347cf9d4a46ccdfd771dbfd2","schema_version":"1.0","event_id":"sha256:343b8041f5eaba342206726507cad517845c2aa8347cf9d4a46ccdfd771dbfd2"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2009:TMJJHJT3YYZZPBWR6LAKCFF23C","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Nuclear astrophysics studies with ultra-peripheral heavy-ion collisions","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"nucl-th","authors_text":"C.A. Bertulani","submitted_at":"2009-12-17T02:14:45Z","abstract_excerpt":"I describe in very simple terms the theoretical tools needed to investigate ultra-peripheral nuclear reactions for nuclear astrophysics purposes. For a more detailed account, see arXiv:0908.4307."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0912.3307","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":"2026-05-18T02:10:16Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"FbMgqXr9b0O22GY0bMwMGrOOG0lrHHdMbl05BX/mQophD48aBPs1S5ygLhbTMmOKIQrzjhTVsWsBBl2PlsnkBA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-08T04:14:40.526004Z"},"content_sha256":"d1c9603f6a17ee749e786f88d380f2263bd17304c54e14d1b3032b37f1425660","schema_version":"1.0","event_id":"sha256:d1c9603f6a17ee749e786f88d380f2263bd17304c54e14d1b3032b37f1425660"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/TMJJHJT3YYZZPBWR6LAKCFF23C/bundle.json","state_url":"https://pith.science/pith/TMJJHJT3YYZZPBWR6LAKCFF23C/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/TMJJHJT3YYZZPBWR6LAKCFF23C/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":"2026-06-08T04:14:40Z","links":{"resolver":"https://pith.science/pith/TMJJHJT3YYZZPBWR6LAKCFF23C","bundle":"https://pith.science/pith/TMJJHJT3YYZZPBWR6LAKCFF23C/bundle.json","state":"https://pith.science/pith/TMJJHJT3YYZZPBWR6LAKCFF23C/state.json","well_known_bundle":"https://pith.science/.well-known/pith/TMJJHJT3YYZZPBWR6LAKCFF23C/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2009:TMJJHJT3YYZZPBWR6LAKCFF23C","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":"05bd75ffa4c881740d3464116438b0422a48f911d46e064c529e9494fb75348a","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"nucl-th","submitted_at":"2009-12-17T02:14:45Z","title_canon_sha256":"ceba03fb9f5285e88c933e1969cafa1af7766b1879815592218a724a6e71fcf3"},"schema_version":"1.0","source":{"id":"0912.3307","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"0912.3307","created_at":"2026-05-18T02:10:16Z"},{"alias_kind":"arxiv_version","alias_value":"0912.3307v1","created_at":"2026-05-18T02:10:16Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0912.3307","created_at":"2026-05-18T02:10:16Z"},{"alias_kind":"pith_short_12","alias_value":"TMJJHJT3YYZZ","created_at":"2026-05-18T12:26:01Z"},{"alias_kind":"pith_short_16","alias_value":"TMJJHJT3YYZZPBWR","created_at":"2026-05-18T12:26:01Z"},{"alias_kind":"pith_short_8","alias_value":"TMJJHJT3","created_at":"2026-05-18T12:26:01Z"}],"graph_snapshots":[{"event_id":"sha256:d1c9603f6a17ee749e786f88d380f2263bd17304c54e14d1b3032b37f1425660","target":"graph","created_at":"2026-05-18T02:10:16Z","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":"I describe in very simple terms the theoretical tools needed to investigate ultra-peripheral nuclear reactions for nuclear astrophysics purposes. For a more detailed account, see arXiv:0908.4307.","authors_text":"C.A. Bertulani","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"nucl-th","submitted_at":"2009-12-17T02:14:45Z","title":"Nuclear astrophysics studies with ultra-peripheral heavy-ion collisions"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0912.3307","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":"sha256:343b8041f5eaba342206726507cad517845c2aa8347cf9d4a46ccdfd771dbfd2","target":"record","created_at":"2026-05-18T02:10:16Z","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":"05bd75ffa4c881740d3464116438b0422a48f911d46e064c529e9494fb75348a","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"nucl-th","submitted_at":"2009-12-17T02:14:45Z","title_canon_sha256":"ceba03fb9f5285e88c933e1969cafa1af7766b1879815592218a724a6e71fcf3"},"schema_version":"1.0","source":{"id":"0912.3307","kind":"arxiv","version":1}},"canonical_sha256":"9b1293a67bc6339786d1f2c0a114bad8b25a39f1ff9ddbc3e79f2d7481fe37aa","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"9b1293a67bc6339786d1f2c0a114bad8b25a39f1ff9ddbc3e79f2d7481fe37aa","first_computed_at":"2026-05-18T02:10:16.188154Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:10:16.188154Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"VY49nnquajKEH4F7i4xlFxhBuqGzZfyC/Smwyzv0baTvfVc2TM0UlDlfpgqdp+bFBVeCyP1biwhYkRUoXayaDg==","signature_status":"signed_v1","signed_at":"2026-05-18T02:10:16.188824Z","signed_message":"canonical_sha256_bytes"},"source_id":"0912.3307","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:343b8041f5eaba342206726507cad517845c2aa8347cf9d4a46ccdfd771dbfd2","sha256:d1c9603f6a17ee749e786f88d380f2263bd17304c54e14d1b3032b37f1425660"],"state_sha256":"d31d37e706762cbc85a17830c08dc53bb7113de0c80f3bb525bd7dd58d17f822"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"h7362RnVvv7s7tTxHGRFmJ1v+e5RZswtLMAifWKtTfshXBl+h//sM8fvRbcTGQGM4r+WKIVbTgcY9XqIX95+CQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-08T04:14:40.530148Z","bundle_sha256":"11d5a10342a7cf7d8fdfe3e9875f08e8243abd52a886986e100ed1306f47cf3f"}}