{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2007:LAX4DDFKTTL2RX3FZCA25ADY7E","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":"abdd273b86b8f204e9564ce22aa5783538d84eced3ba9fbb03d783dad1ed7108","cross_cats_sorted":[],"license":"","primary_cat":"nucl-ex","submitted_at":"2007-09-24T08:46:27Z","title_canon_sha256":"70cde0be4bfde2c5afc101377caf0e3282d8ca22b391ed961b8836681d2d0444"},"schema_version":"1.0","source":{"id":"0709.3669","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"0709.3669","created_at":"2026-07-04T15:30:35Z"},{"alias_kind":"arxiv_version","alias_value":"0709.3669v2","created_at":"2026-07-04T15:30:35Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0709.3669","created_at":"2026-07-04T15:30:35Z"},{"alias_kind":"pith_short_12","alias_value":"LAX4DDFKTTL2","created_at":"2026-07-04T15:30:35Z"},{"alias_kind":"pith_short_16","alias_value":"LAX4DDFKTTL2RX3F","created_at":"2026-07-04T15:30:35Z"},{"alias_kind":"pith_short_8","alias_value":"LAX4DDFK","created_at":"2026-07-04T15:30:35Z"}],"graph_snapshots":[{"event_id":"sha256:78f0b5b0e25f1a782ad03ebcb1c5250ef6a4e90195773fa5e4bde37ecbdd6f76","target":"graph","created_at":"2026-07-04T15:30:35Z","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/0709.3669/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"An effective ion catcher is an important part of a radioactive beam facility that is based on in-flight production. The catcher stops fast radioactive products and emits them as singly charged slow ions. Current ion catchers are based on stopping in He and H$_2$ gas. However, with increasing intensity of the secondary beam the amount of ion-electron pairs created eventually prevents the electromagnetic extraction of the radioactive ions from the gas cell. In contrast, such limitations are not present in thermal ionizers used with the ISOL production technique. Therefore, at least for alkaline ","authors_text":"A.J. Mol, A. Rogachevskiy, C.J.G. Onderwater, E. Traykov, H.W. Wilschut, K. Jungmann, L. Huisman, L. Willmann, M. da Silva e Silva, M. Sohani, O.C. Dermois, O. Versolato, S. De, U. Dammalapati, W. Kruithof","cross_cats":[],"headline":"","license":"","primary_cat":"nucl-ex","submitted_at":"2007-09-24T08:46:27Z","title":"Development of a thermal ionizer as ion catcher"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0709.3669","kind":"arxiv","version":2},"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":"sha256:60855cecb4cbeaad818e50233ef610beccce60ab22bafcd7f01e6e7856ae0b09","target":"record","created_at":"2026-07-04T15:30:35Z","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":"abdd273b86b8f204e9564ce22aa5783538d84eced3ba9fbb03d783dad1ed7108","cross_cats_sorted":[],"license":"","primary_cat":"nucl-ex","submitted_at":"2007-09-24T08:46:27Z","title_canon_sha256":"70cde0be4bfde2c5afc101377caf0e3282d8ca22b391ed961b8836681d2d0444"},"schema_version":"1.0","source":{"id":"0709.3669","kind":"arxiv","version":2}},"canonical_sha256":"582fc18caa9cd7a8df65c881ae8078f937c115520da89689e88f5f2bf547514f","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"582fc18caa9cd7a8df65c881ae8078f937c115520da89689e88f5f2bf547514f","first_computed_at":"2026-07-04T15:30:35.294767Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-04T15:30:35.294767Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"7Hh2ibr4FMi9Q1XxZtz/yXhkBfp3lsofalZ5L7K8JG3PtS/lQpfLF/Tk4GifIvpEqv+7+61wSmBKZoB7/CebBA==","signature_status":"signed_v1","signed_at":"2026-07-04T15:30:35.295193Z","signed_message":"canonical_sha256_bytes"},"source_id":"0709.3669","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:60855cecb4cbeaad818e50233ef610beccce60ab22bafcd7f01e6e7856ae0b09","sha256:78f0b5b0e25f1a782ad03ebcb1c5250ef6a4e90195773fa5e4bde37ecbdd6f76"],"state_sha256":"f605a712c5ba22d32473768c290c816b4061f95e0a541d15f2f78e8bcad8bb7e"}