{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2018:JCKNEN33ZZJ7G72LGL6R37LKOA","short_pith_number":"pith:JCKNEN33","canonical_record":{"source":{"id":"1808.06001","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.plasm-ph","submitted_at":"2018-08-17T21:25:24Z","cross_cats_sorted":[],"title_canon_sha256":"2ad0c858b9fb80f4d0d42b86275365a57a27e2cec2d7a863c721813e8f6d4ee3","abstract_canon_sha256":"777a4045d57fdad7747fb96b9e3e8ea970ae7864ee285bef268f9ae9db0661ef"},"schema_version":"1.0"},"canonical_sha256":"4894d2377bce53f37f4b32fd1dfd6a7011c29b1dafea155092fe91cb7d1f13a9","source":{"kind":"arxiv","id":"1808.06001","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1808.06001","created_at":"2026-05-17T23:55:20Z"},{"alias_kind":"arxiv_version","alias_value":"1808.06001v1","created_at":"2026-05-17T23:55:20Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1808.06001","created_at":"2026-05-17T23:55:20Z"},{"alias_kind":"pith_short_12","alias_value":"JCKNEN33ZZJ7","created_at":"2026-05-18T12:32:31Z"},{"alias_kind":"pith_short_16","alias_value":"JCKNEN33ZZJ7G72L","created_at":"2026-05-18T12:32:31Z"},{"alias_kind":"pith_short_8","alias_value":"JCKNEN33","created_at":"2026-05-18T12:32:31Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2018:JCKNEN33ZZJ7G72LGL6R37LKOA","target":"record","payload":{"canonical_record":{"source":{"id":"1808.06001","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.plasm-ph","submitted_at":"2018-08-17T21:25:24Z","cross_cats_sorted":[],"title_canon_sha256":"2ad0c858b9fb80f4d0d42b86275365a57a27e2cec2d7a863c721813e8f6d4ee3","abstract_canon_sha256":"777a4045d57fdad7747fb96b9e3e8ea970ae7864ee285bef268f9ae9db0661ef"},"schema_version":"1.0"},"canonical_sha256":"4894d2377bce53f37f4b32fd1dfd6a7011c29b1dafea155092fe91cb7d1f13a9","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-17T23:55:20.068215Z","signature_b64":"gW2L5yAHLATWqp2OZsblCAMZdMKKh0weEw+8fCFQ3AE2Xn1UdYgG2ko/kwhCyGgRw5EsN/bX1pDdh9xRkGNFDg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"4894d2377bce53f37f4b32fd1dfd6a7011c29b1dafea155092fe91cb7d1f13a9","last_reissued_at":"2026-05-17T23:55:20.067660Z","signature_status":"signed_v1","first_computed_at":"2026-05-17T23:55:20.067660Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1808.06001","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":"2026-05-17T23:55:20Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"P+ylMVSIMaLKhS0oWUBbch80zrC+CDqfWl/pZrm9St0kGjgfsgXp3He/JFIsQWWgv06oJveaZs005pH8rSWACw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-08T17:06:22.671148Z"},"content_sha256":"62a9e5c126766da1f7b8e10edbe024424cad3f325afbde087500b772be63b291","schema_version":"1.0","event_id":"sha256:62a9e5c126766da1f7b8e10edbe024424cad3f325afbde087500b772be63b291"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2018:JCKNEN33ZZJ7G72LGL6R37LKOA","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Polarized Negative Ion Source with Multiply Sphericaly Focusing Surface Plasma Ionizer","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"physics.plasm-ph","authors_text":"A. Dudnikov, V. Dudnikov","submitted_at":"2018-08-17T21:25:24Z","abstract_excerpt":"It is proposed one universal H-/D- ion source design combining the most advanced developments in the field of polarized ion sources to provide high-current high-brightness ion beams with >90% polarization and improved lifetime, reliability, and power efficiency. The new source utilizes high-efficiency resonant charge-exchange ionization of polarized neutral atoms by negative ions generated by cesiated surface-plasma interactions via a multi-spherical negative ion focusing element. Multi-spherical focusing of the negative ions strongly suppresses the parasitic generation of unpolarized H-/D- io"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1808.06001","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":"2026-05-17T23:55:20Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"hvhXthNlCzaf4wi5cbxZnCJvjX3mZNWyjdHAhyAwC6REKicKAO8bIaOzhNv+52KQ4D71G4HoBL6M8+0IQ7NACQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-08T17:06:22.671881Z"},"content_sha256":"eeb617d56c4b74f7421813957f7c44c46740a563e860e03732b4897ca22d97ad","schema_version":"1.0","event_id":"sha256:eeb617d56c4b74f7421813957f7c44c46740a563e860e03732b4897ca22d97ad"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/JCKNEN33ZZJ7G72LGL6R37LKOA/bundle.json","state_url":"https://pith.science/pith/JCKNEN33ZZJ7G72LGL6R37LKOA/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/JCKNEN33ZZJ7G72LGL6R37LKOA/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":"2026-06-08T17:06:22Z","links":{"resolver":"https://pith.science/pith/JCKNEN33ZZJ7G72LGL6R37LKOA","bundle":"https://pith.science/pith/JCKNEN33ZZJ7G72LGL6R37LKOA/bundle.json","state":"https://pith.science/pith/JCKNEN33ZZJ7G72LGL6R37LKOA/state.json","well_known_bundle":"https://pith.science/.well-known/pith/JCKNEN33ZZJ7G72LGL6R37LKOA/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2018:JCKNEN33ZZJ7G72LGL6R37LKOA","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":"777a4045d57fdad7747fb96b9e3e8ea970ae7864ee285bef268f9ae9db0661ef","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.plasm-ph","submitted_at":"2018-08-17T21:25:24Z","title_canon_sha256":"2ad0c858b9fb80f4d0d42b86275365a57a27e2cec2d7a863c721813e8f6d4ee3"},"schema_version":"1.0","source":{"id":"1808.06001","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1808.06001","created_at":"2026-05-17T23:55:20Z"},{"alias_kind":"arxiv_version","alias_value":"1808.06001v1","created_at":"2026-05-17T23:55:20Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1808.06001","created_at":"2026-05-17T23:55:20Z"},{"alias_kind":"pith_short_12","alias_value":"JCKNEN33ZZJ7","created_at":"2026-05-18T12:32:31Z"},{"alias_kind":"pith_short_16","alias_value":"JCKNEN33ZZJ7G72L","created_at":"2026-05-18T12:32:31Z"},{"alias_kind":"pith_short_8","alias_value":"JCKNEN33","created_at":"2026-05-18T12:32:31Z"}],"graph_snapshots":[{"event_id":"sha256:eeb617d56c4b74f7421813957f7c44c46740a563e860e03732b4897ca22d97ad","target":"graph","created_at":"2026-05-17T23:55:20Z","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":"It is proposed one universal H-/D- ion source design combining the most advanced developments in the field of polarized ion sources to provide high-current high-brightness ion beams with >90% polarization and improved lifetime, reliability, and power efficiency. The new source utilizes high-efficiency resonant charge-exchange ionization of polarized neutral atoms by negative ions generated by cesiated surface-plasma interactions via a multi-spherical negative ion focusing element. Multi-spherical focusing of the negative ions strongly suppresses the parasitic generation of unpolarized H-/D- io","authors_text":"A. Dudnikov, V. Dudnikov","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.plasm-ph","submitted_at":"2018-08-17T21:25:24Z","title":"Polarized Negative Ion Source with Multiply Sphericaly Focusing Surface Plasma Ionizer"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1808.06001","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":"sha256:62a9e5c126766da1f7b8e10edbe024424cad3f325afbde087500b772be63b291","target":"record","created_at":"2026-05-17T23:55:20Z","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":"777a4045d57fdad7747fb96b9e3e8ea970ae7864ee285bef268f9ae9db0661ef","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.plasm-ph","submitted_at":"2018-08-17T21:25:24Z","title_canon_sha256":"2ad0c858b9fb80f4d0d42b86275365a57a27e2cec2d7a863c721813e8f6d4ee3"},"schema_version":"1.0","source":{"id":"1808.06001","kind":"arxiv","version":1}},"canonical_sha256":"4894d2377bce53f37f4b32fd1dfd6a7011c29b1dafea155092fe91cb7d1f13a9","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"4894d2377bce53f37f4b32fd1dfd6a7011c29b1dafea155092fe91cb7d1f13a9","first_computed_at":"2026-05-17T23:55:20.067660Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-17T23:55:20.067660Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"gW2L5yAHLATWqp2OZsblCAMZdMKKh0weEw+8fCFQ3AE2Xn1UdYgG2ko/kwhCyGgRw5EsN/bX1pDdh9xRkGNFDg==","signature_status":"signed_v1","signed_at":"2026-05-17T23:55:20.068215Z","signed_message":"canonical_sha256_bytes"},"source_id":"1808.06001","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:62a9e5c126766da1f7b8e10edbe024424cad3f325afbde087500b772be63b291","sha256:eeb617d56c4b74f7421813957f7c44c46740a563e860e03732b4897ca22d97ad"],"state_sha256":"0cad04a8a2c4acc159fb6efd85d1f869ff08708945617f299712e24a4df7896e"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"YCyPAQGhyf+hf9s0FscD/6PhcNEfq8WAGi8bS+CnKEXEjGqbMVmt9QwlyhOncF+A5jjsGafPOTXxS0252M6rAw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-08T17:06:22.676099Z","bundle_sha256":"6b1d05197f1ea42e7e8c4ef80b3c92da809dc60c06b811415d17f869773f5c5c"}}