{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2006:B4S3QTL7LZSBVMIOI2NBOT5TKU","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":"95a1f8ebc6e7d882437fc9446e19dbe651aed98c739f8f4477052916385a0d15","cross_cats_sorted":[],"license":"","primary_cat":"nucl-ex","submitted_at":"2006-03-07T22:13:25Z","title_canon_sha256":"414627308fb036a3c6fd44dcf064cc5e471ae2c0c57a4efad6b8a7a33c4861af"},"schema_version":"1.0","source":{"id":"nucl-ex/0603009","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"nucl-ex/0603009","created_at":"2026-07-04T15:17:53Z"},{"alias_kind":"arxiv_version","alias_value":"nucl-ex/0603009v1","created_at":"2026-07-04T15:17:53Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.nucl-ex/0603009","created_at":"2026-07-04T15:17:53Z"},{"alias_kind":"pith_short_12","alias_value":"B4S3QTL7LZSB","created_at":"2026-07-04T15:17:53Z"},{"alias_kind":"pith_short_16","alias_value":"B4S3QTL7LZSBVMIO","created_at":"2026-07-04T15:17:53Z"},{"alias_kind":"pith_short_8","alias_value":"B4S3QTL7","created_at":"2026-07-04T15:17:53Z"}],"graph_snapshots":[{"event_id":"sha256:cc1fcb7367fd61a14bc3685d4c63dd9b99db4162ba55a3b4f89cc06dc55b15e4","target":"graph","created_at":"2026-07-04T15:17:53Z","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"},"integrity":{"available":true,"clean":true,"detectors_run":[],"endpoint":"/pith/nucl-ex/0603009/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"The sizes, temperatures and free neutron to proton ratios of the initial interaction zones produced in the collisions of 40 MeV/nucleon $^{40}$Ar + $^{112}$Sn and 55 MeV/nucleon$^{27}$Al + $^{124}$Sn are derived using total detected neutron plus charged particle multiplicity as a measure of the impact parameter range and number of participant nucleons. The size of the initial interaction zone, determined from a coalescence model analysis, increases significantly with decreasing impact parameter. The temperatures and free neutron to proton ratios in the interaction zones are relatively similar ","authors_text":"A. Keksis, A. Martinez-Davalos, A. Menchaca-Rocha, A. Ono, A. Ruangma, D. Fabris, D. V. Shetty, E. Martin, E. M. Winchester, G. Nebbia, G. Prete, G. Souliotis, G. Viesti, J. B. Natowitz, J. Cibor, J. Wang, K. Hagel, L. Qin, M. Cinausero, M. Lunardon, M. Murray, M. Veselsky, P. Staszel, R. Alfarro, R. Wada, S. J. Yennello, S. Kowalski, S. Moretto, S. Pesente, T. Keutgen, T. Materna, V. Rizzi, W. Zipper, Y. El Masri, Y. G. Ma, Z. Chen, Z. Majka","cross_cats":[],"headline":"","license":"","primary_cat":"nucl-ex","submitted_at":"2006-03-07T22:13:25Z","title":"Properties of the Initial Participant Matter Interaction Zone in Near Fermi-Energy Heavy Ion Collisions"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"nucl-ex/0603009","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:caa6dea2aa311c65a946231b69c1a5e9d588380ee21853d93a115d8e4dce5584","target":"record","created_at":"2026-07-04T15:17:53Z","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":"95a1f8ebc6e7d882437fc9446e19dbe651aed98c739f8f4477052916385a0d15","cross_cats_sorted":[],"license":"","primary_cat":"nucl-ex","submitted_at":"2006-03-07T22:13:25Z","title_canon_sha256":"414627308fb036a3c6fd44dcf064cc5e471ae2c0c57a4efad6b8a7a33c4861af"},"schema_version":"1.0","source":{"id":"nucl-ex/0603009","kind":"arxiv","version":1}},"canonical_sha256":"0f25b84d7f5e641ab10e469a174fb3550b24c0e91321d1e421a3bdd933a2355f","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"0f25b84d7f5e641ab10e469a174fb3550b24c0e91321d1e421a3bdd933a2355f","first_computed_at":"2026-07-04T15:17:53.956014Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-04T15:17:53.956014Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"AZoZwSDbX165LQVbZYpH83lEMwWjNg0hiMYI7mV6o6f4tTBscR7P+zqdfAJVYA4usYyzyUlvEogAUxM9UoqLDg==","signature_status":"signed_v1","signed_at":"2026-07-04T15:17:53.956450Z","signed_message":"canonical_sha256_bytes"},"source_id":"nucl-ex/0603009","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:caa6dea2aa311c65a946231b69c1a5e9d588380ee21853d93a115d8e4dce5584","sha256:cc1fcb7367fd61a14bc3685d4c63dd9b99db4162ba55a3b4f89cc06dc55b15e4"],"state_sha256":"8a36d849f72fa9a4b7e1adf2d1604a1472ef8d9137727ad661d6c0992bc987e1"}