{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2006:G55LFYNR55RO7TIDI5KD6MCO7Z","short_pith_number":"pith:G55LFYNR","canonical_record":{"source":{"id":"nucl-ex/0609045","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"nucl-ex","submitted_at":"2006-09-29T09:19:29Z","cross_cats_sorted":[],"title_canon_sha256":"0242c062ea0437dd8fa2b21ac7a36aae163d675e73f2e7dfc98221205f2b26fb","abstract_canon_sha256":"f5bac06f6fa4203e330ea1e239eef64bd0f9d2681b6cbc69029067baa3f01f25"},"schema_version":"1.0"},"canonical_sha256":"377ab2e1b1ef62efcd0347543f304efe423533b572808ebac8cfccfaaefd8d11","source":{"kind":"arxiv","id":"nucl-ex/0609045","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"nucl-ex/0609045","created_at":"2026-05-18T03:47:09Z"},{"alias_kind":"arxiv_version","alias_value":"nucl-ex/0609045v1","created_at":"2026-05-18T03:47:09Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.nucl-ex/0609045","created_at":"2026-05-18T03:47:09Z"},{"alias_kind":"pith_short_12","alias_value":"G55LFYNR55RO","created_at":"2026-05-18T12:25:53Z"},{"alias_kind":"pith_short_16","alias_value":"G55LFYNR55RO7TID","created_at":"2026-05-18T12:25:53Z"},{"alias_kind":"pith_short_8","alias_value":"G55LFYNR","created_at":"2026-05-18T12:25:53Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2006:G55LFYNR55RO7TIDI5KD6MCO7Z","target":"record","payload":{"canonical_record":{"source":{"id":"nucl-ex/0609045","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"nucl-ex","submitted_at":"2006-09-29T09:19:29Z","cross_cats_sorted":[],"title_canon_sha256":"0242c062ea0437dd8fa2b21ac7a36aae163d675e73f2e7dfc98221205f2b26fb","abstract_canon_sha256":"f5bac06f6fa4203e330ea1e239eef64bd0f9d2681b6cbc69029067baa3f01f25"},"schema_version":"1.0"},"canonical_sha256":"377ab2e1b1ef62efcd0347543f304efe423533b572808ebac8cfccfaaefd8d11","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T03:47:09.860835Z","signature_b64":"ZUwfzLErumLvhHQZ1wKB/UIp4CZyKDxvAePbIWSPbQl/r+AqdXeBI2LiI1uHlAacopkVbPOEP5emBOC+/GR0Aw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"377ab2e1b1ef62efcd0347543f304efe423533b572808ebac8cfccfaaefd8d11","last_reissued_at":"2026-05-18T03:47:09.860402Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T03:47:09.860402Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"nucl-ex/0609045","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":"2026-05-18T03:47:09Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"YmHR73roAWQ9bTzuQ66xVKFY12Du0NnxjWJfvvPb/yLsvA0tM1w0uGeGGoCFbuw5w4nuFrzXrfkJO8QZp3n8Bg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-25T23:47:27.430986Z"},"content_sha256":"8e3ae9c063f893efa254229ec417ae523ed850611c2ec2af417694c4825a5376","schema_version":"1.0","event_id":"sha256:8e3ae9c063f893efa254229ec417ae523ed850611c2ec2af417694c4825a5376"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2006:G55LFYNR55RO7TIDI5KD6MCO7Z","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Isotope analysis in central heavy ion collisions at intermediate energies","license":"","headline":"","cross_cats":[],"primary_cat":"nucl-ex","authors_text":"A.Giussani, A.L.Lanchais, A.Moroni, A.Nannini, A.Olmi, A.Ordine, F.Cannata, F.Gramegna, G.Casini, G.Pasquali, G.Poggi, G.Vannini, J.DeSanctis, L.Bardelli, M.Bini, M.Bruno, M.Chiari, M.D'Agostino, NUCL-EX Collaboration: E.Geraci, P.Marini, S.Barlini, S.Piantelli, U.Abbondanno, V.L.Kravchuk","submitted_at":"2006-09-29T09:19:29Z","abstract_excerpt":"Symmetry energy is a key quantity in the study of the equation of state of asymmetric nuclear matter. Heavy ion collisions at low and intermediate energies, performed at Laboratori Nazionali di Legnaro and Laboratori Nazionali del Sud, can be used to extract information on the symmetry energy coefficient Csym, which is currently poorly known but relevant both for astrophysics and for structure of exotic nuclei."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"nucl-ex/0609045","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":"2026-05-18T03:47:09Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"bWzVxx8/GBSfeDIXsX1bfKcoUcUJYYRTY4MzSUiqWuBVGhEzCEZpObDNodGVIZsOAGEgAn00uAZqPf1IipaqAg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-25T23:47:27.431686Z"},"content_sha256":"2ee04fd396529d18997fe85e7234418ca0b021adaca4f90a69dc069a7479d1ea","schema_version":"1.0","event_id":"sha256:2ee04fd396529d18997fe85e7234418ca0b021adaca4f90a69dc069a7479d1ea"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/G55LFYNR55RO7TIDI5KD6MCO7Z/bundle.json","state_url":"https://pith.science/pith/G55LFYNR55RO7TIDI5KD6MCO7Z/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/G55LFYNR55RO7TIDI5KD6MCO7Z/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":"2026-05-25T23:47:27Z","links":{"resolver":"https://pith.science/pith/G55LFYNR55RO7TIDI5KD6MCO7Z","bundle":"https://pith.science/pith/G55LFYNR55RO7TIDI5KD6MCO7Z/bundle.json","state":"https://pith.science/pith/G55LFYNR55RO7TIDI5KD6MCO7Z/state.json","well_known_bundle":"https://pith.science/.well-known/pith/G55LFYNR55RO7TIDI5KD6MCO7Z/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2006:G55LFYNR55RO7TIDI5KD6MCO7Z","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":"f5bac06f6fa4203e330ea1e239eef64bd0f9d2681b6cbc69029067baa3f01f25","cross_cats_sorted":[],"license":"","primary_cat":"nucl-ex","submitted_at":"2006-09-29T09:19:29Z","title_canon_sha256":"0242c062ea0437dd8fa2b21ac7a36aae163d675e73f2e7dfc98221205f2b26fb"},"schema_version":"1.0","source":{"id":"nucl-ex/0609045","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"nucl-ex/0609045","created_at":"2026-05-18T03:47:09Z"},{"alias_kind":"arxiv_version","alias_value":"nucl-ex/0609045v1","created_at":"2026-05-18T03:47:09Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.nucl-ex/0609045","created_at":"2026-05-18T03:47:09Z"},{"alias_kind":"pith_short_12","alias_value":"G55LFYNR55RO","created_at":"2026-05-18T12:25:53Z"},{"alias_kind":"pith_short_16","alias_value":"G55LFYNR55RO7TID","created_at":"2026-05-18T12:25:53Z"},{"alias_kind":"pith_short_8","alias_value":"G55LFYNR","created_at":"2026-05-18T12:25:53Z"}],"graph_snapshots":[{"event_id":"sha256:2ee04fd396529d18997fe85e7234418ca0b021adaca4f90a69dc069a7479d1ea","target":"graph","created_at":"2026-05-18T03:47:09Z","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":"Symmetry energy is a key quantity in the study of the equation of state of asymmetric nuclear matter. Heavy ion collisions at low and intermediate energies, performed at Laboratori Nazionali di Legnaro and Laboratori Nazionali del Sud, can be used to extract information on the symmetry energy coefficient Csym, which is currently poorly known but relevant both for astrophysics and for structure of exotic nuclei.","authors_text":"A.Giussani, A.L.Lanchais, A.Moroni, A.Nannini, A.Olmi, A.Ordine, F.Cannata, F.Gramegna, G.Casini, G.Pasquali, G.Poggi, G.Vannini, J.DeSanctis, L.Bardelli, M.Bini, M.Bruno, M.Chiari, M.D'Agostino, NUCL-EX Collaboration: E.Geraci, P.Marini, S.Barlini, S.Piantelli, U.Abbondanno, V.L.Kravchuk","cross_cats":[],"headline":"","license":"","primary_cat":"nucl-ex","submitted_at":"2006-09-29T09:19:29Z","title":"Isotope analysis in central heavy ion collisions at intermediate energies"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"nucl-ex/0609045","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":"sha256:8e3ae9c063f893efa254229ec417ae523ed850611c2ec2af417694c4825a5376","target":"record","created_at":"2026-05-18T03:47:09Z","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":"f5bac06f6fa4203e330ea1e239eef64bd0f9d2681b6cbc69029067baa3f01f25","cross_cats_sorted":[],"license":"","primary_cat":"nucl-ex","submitted_at":"2006-09-29T09:19:29Z","title_canon_sha256":"0242c062ea0437dd8fa2b21ac7a36aae163d675e73f2e7dfc98221205f2b26fb"},"schema_version":"1.0","source":{"id":"nucl-ex/0609045","kind":"arxiv","version":1}},"canonical_sha256":"377ab2e1b1ef62efcd0347543f304efe423533b572808ebac8cfccfaaefd8d11","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"377ab2e1b1ef62efcd0347543f304efe423533b572808ebac8cfccfaaefd8d11","first_computed_at":"2026-05-18T03:47:09.860402Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T03:47:09.860402Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"ZUwfzLErumLvhHQZ1wKB/UIp4CZyKDxvAePbIWSPbQl/r+AqdXeBI2LiI1uHlAacopkVbPOEP5emBOC+/GR0Aw==","signature_status":"signed_v1","signed_at":"2026-05-18T03:47:09.860835Z","signed_message":"canonical_sha256_bytes"},"source_id":"nucl-ex/0609045","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:8e3ae9c063f893efa254229ec417ae523ed850611c2ec2af417694c4825a5376","sha256:2ee04fd396529d18997fe85e7234418ca0b021adaca4f90a69dc069a7479d1ea"],"state_sha256":"c2b7aa818b72e6840b165783f73149f4a904b1344b0bb860ab4eca7a3e1af92a"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"uMj5sdNfaRinqaIVTbWHQfTPvWcR0GqmBy7qYhYOWJyVbG6/nhrZB4LfnRZCG/RMUgQ4MFIbeWz5Lw8bMsLpAg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-25T23:47:27.435332Z","bundle_sha256":"2f47d34a8f23bf0923a21056f30828655cbd43bfb87e386b826c6bc262a33997"}}