{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2010:VEIX2O5SI4XAKBSMVYA2CFQLOP","short_pith_number":"pith:VEIX2O5S","schema_version":"1.0","canonical_sha256":"a9117d3bb2472e05064cae01a1160b73f8363eb7be394c3dce8b7899c225cbf4","source":{"kind":"arxiv","id":"1006.2970","version":2},"attestation_state":"computed","paper":{"title":"Solid oxygen as converter for the production of ultra-cold neutrons","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"nucl-ex","authors_text":"A. Frei, E. Gutsmiedl, F. B\\\"ohle, J. Klenke, R. Bozhanova, S. Paul, S. Wlokka, T. Huber","submitted_at":"2010-06-15T12:23:10Z","abstract_excerpt":"We have investigated solid oxygen as a converter material for the production of ultra-cold neutrons. In a first series of experiments the crystal preparation was examined. An optically semi-transparent solid $\\alpha$-oxygen crystal has been prepared. In a second series of experiments such a crystal prepared indentically as in the first series of experiments has been exposed to the cold neutron flux of the MEPHISTO beam line of the FRM II. Ultra-cold neutrons produced inside the oxygen crystal have been extracted and the count rates have been measured at different converter temperatures. The re"},"verification_status":{"content_addressed":true,"pith_receipt":true,"author_attested":false,"weak_author_claims":0,"strong_author_claims":0,"externally_anchored":false,"storage_verified":false,"citation_signatures":0,"replication_records":0,"graph_snapshot":true,"references_resolved":false,"formal_links_present":false},"canonical_record":{"source":{"id":"1006.2970","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"nucl-ex","submitted_at":"2010-06-15T12:23:10Z","cross_cats_sorted":[],"title_canon_sha256":"48d6b49cdbd5a704c08a51a7c54074fac8b5010bf0b3886522403bf3494d3de1","abstract_canon_sha256":"cfdb7c511c0b23c42fbde3026b5ae30bdb52925b6460fd32444bada8f582eb0e"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T04:18:34.762742Z","signature_b64":"yAU5FIsAIv3IMua9Ot9WWDl2atpTNNQadQAw/plAh5S1QO3XMnZt8SxMrYL8OWTgR51VisR4CaVQ666Ht1/0Aw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"a9117d3bb2472e05064cae01a1160b73f8363eb7be394c3dce8b7899c225cbf4","last_reissued_at":"2026-05-18T04:18:34.762203Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T04:18:34.762203Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Solid oxygen as converter for the production of ultra-cold neutrons","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"nucl-ex","authors_text":"A. Frei, E. Gutsmiedl, F. B\\\"ohle, J. Klenke, R. Bozhanova, S. Paul, S. Wlokka, T. Huber","submitted_at":"2010-06-15T12:23:10Z","abstract_excerpt":"We have investigated solid oxygen as a converter material for the production of ultra-cold neutrons. In a first series of experiments the crystal preparation was examined. An optically semi-transparent solid $\\alpha$-oxygen crystal has been prepared. In a second series of experiments such a crystal prepared indentically as in the first series of experiments has been exposed to the cold neutron flux of the MEPHISTO beam line of the FRM II. Ultra-cold neutrons produced inside the oxygen crystal have been extracted and the count rates have been measured at different converter temperatures. The re"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1006.2970","kind":"arxiv","version":2},"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"},"aliases":[{"alias_kind":"arxiv","alias_value":"1006.2970","created_at":"2026-05-18T04:18:34.762284+00:00"},{"alias_kind":"arxiv_version","alias_value":"1006.2970v2","created_at":"2026-05-18T04:18:34.762284+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1006.2970","created_at":"2026-05-18T04:18:34.762284+00:00"},{"alias_kind":"pith_short_12","alias_value":"VEIX2O5SI4XA","created_at":"2026-05-18T12:26:15.391820+00:00"},{"alias_kind":"pith_short_16","alias_value":"VEIX2O5SI4XAKBSM","created_at":"2026-05-18T12:26:15.391820+00:00"},{"alias_kind":"pith_short_8","alias_value":"VEIX2O5S","created_at":"2026-05-18T12:26:15.391820+00:00"}],"events":[],"event_summary":{},"paper_claims":[],"inbound_citations":{"count":0,"internal_anchor_count":0,"sample":[]},"formal_canon":{"evidence_count":0,"sample":[],"anchors":[]},"links":{"html":"https://pith.science/pith/VEIX2O5SI4XAKBSMVYA2CFQLOP","json":"https://pith.science/pith/VEIX2O5SI4XAKBSMVYA2CFQLOP.json","graph_json":"https://pith.science/api/pith-number/VEIX2O5SI4XAKBSMVYA2CFQLOP/graph.json","events_json":"https://pith.science/api/pith-number/VEIX2O5SI4XAKBSMVYA2CFQLOP/events.json","paper":"https://pith.science/paper/VEIX2O5S"},"agent_actions":{"view_html":"https://pith.science/pith/VEIX2O5SI4XAKBSMVYA2CFQLOP","download_json":"https://pith.science/pith/VEIX2O5SI4XAKBSMVYA2CFQLOP.json","view_paper":"https://pith.science/paper/VEIX2O5S","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1006.2970&json=true","fetch_graph":"https://pith.science/api/pith-number/VEIX2O5SI4XAKBSMVYA2CFQLOP/graph.json","fetch_events":"https://pith.science/api/pith-number/VEIX2O5SI4XAKBSMVYA2CFQLOP/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/VEIX2O5SI4XAKBSMVYA2CFQLOP/action/timestamp_anchor","attest_storage":"https://pith.science/pith/VEIX2O5SI4XAKBSMVYA2CFQLOP/action/storage_attestation","attest_author":"https://pith.science/pith/VEIX2O5SI4XAKBSMVYA2CFQLOP/action/author_attestation","sign_citation":"https://pith.science/pith/VEIX2O5SI4XAKBSMVYA2CFQLOP/action/citation_signature","submit_replication":"https://pith.science/pith/VEIX2O5SI4XAKBSMVYA2CFQLOP/action/replication_record"}},"created_at":"2026-05-18T04:18:34.762284+00:00","updated_at":"2026-05-18T04:18:34.762284+00:00"}