{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:1995:PGVUSNNNE3OG64VJT6UZKPYY24","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":"40acb81c0cc1d382ca7acf2b287534346adec8e31dc88f74084d8fbfa4fb4193","cross_cats_sorted":[],"license":"","primary_cat":"nucl-th","submitted_at":"1995-07-22T17:05:26Z","title_canon_sha256":"5d940d070bfe5c09ba396a945a32389c310cacfdb72034b9b27d13d79cc8a338"},"schema_version":"1.0","source":{"id":"nucl-th/9507035","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"nucl-th/9507035","created_at":"2026-05-18T04:24:15Z"},{"alias_kind":"arxiv_version","alias_value":"nucl-th/9507035v1","created_at":"2026-05-18T04:24:15Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.nucl-th/9507035","created_at":"2026-05-18T04:24:15Z"},{"alias_kind":"pith_short_12","alias_value":"PGVUSNNNE3OG","created_at":"2026-05-18T12:25:47Z"},{"alias_kind":"pith_short_16","alias_value":"PGVUSNNNE3OG64VJ","created_at":"2026-05-18T12:25:47Z"},{"alias_kind":"pith_short_8","alias_value":"PGVUSNNN","created_at":"2026-05-18T12:25:47Z"}],"graph_snapshots":[{"event_id":"sha256:5e1cbd468cc2e22ac71fddd7b18ea11b300d3121b8ecd6f478129a61dc8a70b3","target":"graph","created_at":"2026-05-18T04:24:15Z","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":"Metastable antiprotonic helium atoms $^{3,4}\\! H\\! e\\bar pe$ have been discovered recently in experiments of the delayed annihilation of antiprotons in helium media. These exotic atoms survive for an enormous time (about tens of microseconds) and carry the extremely large total angular momentum $L\\sim 30-40$. The theoretical treatment of the intrinsic properties of antiprotonic helium atoms, their formation and collisions with atoms and molecules is discussed.","authors_text":"O.I.Kartavtsev","cross_cats":[],"headline":"","license":"","primary_cat":"nucl-th","submitted_at":"1995-07-22T17:05:26Z","title":"Antiprotonic Helium Atoms"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"nucl-th/9507035","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":"sha256:3c497ff5aa9c35f791a8a1ff9296ef5c23d228c60f8d50bae0a2726616570881","target":"record","created_at":"2026-05-18T04:24:15Z","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":"40acb81c0cc1d382ca7acf2b287534346adec8e31dc88f74084d8fbfa4fb4193","cross_cats_sorted":[],"license":"","primary_cat":"nucl-th","submitted_at":"1995-07-22T17:05:26Z","title_canon_sha256":"5d940d070bfe5c09ba396a945a32389c310cacfdb72034b9b27d13d79cc8a338"},"schema_version":"1.0","source":{"id":"nucl-th/9507035","kind":"arxiv","version":1}},"canonical_sha256":"79ab4935ad26dc6f72a99fa9953f18d71b4f3d3969a34a730ce0670d57af2c9e","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"79ab4935ad26dc6f72a99fa9953f18d71b4f3d3969a34a730ce0670d57af2c9e","first_computed_at":"2026-05-18T04:24:15.029998Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T04:24:15.029998Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"yGEU2+QtC7/9FYZmu67NcSInSTMouG5SyNZghQQdkkykjqtr8pt8Ab/+OodqspN/Ti5mD5NeYndlcmjS8fgKBg==","signature_status":"signed_v1","signed_at":"2026-05-18T04:24:15.030430Z","signed_message":"canonical_sha256_bytes"},"source_id":"nucl-th/9507035","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:3c497ff5aa9c35f791a8a1ff9296ef5c23d228c60f8d50bae0a2726616570881","sha256:5e1cbd468cc2e22ac71fddd7b18ea11b300d3121b8ecd6f478129a61dc8a70b3"],"state_sha256":"70ed2aa7e8a37fbee55e3d09725f67a5f5425f76c372bc7158f4504ffe6b04c5"}