{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2019:NQGIRMR7JDYZ7WDZ2N6ZVR4WGH","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":"275b6d8599f97b6eacdaf557c1b997fa1a63e44b0b1601eb506bbf7a82646a21","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.supr-con","submitted_at":"2019-02-26T08:17:52Z","title_canon_sha256":"48b8681c452134d2ecb8f890a12b93a4929b77ddc22d00d2d924781da09776da"},"schema_version":"1.0","source":{"id":"1902.09789","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1902.09789","created_at":"2026-05-17T23:52:35Z"},{"alias_kind":"arxiv_version","alias_value":"1902.09789v1","created_at":"2026-05-17T23:52:35Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1902.09789","created_at":"2026-05-17T23:52:35Z"},{"alias_kind":"pith_short_12","alias_value":"NQGIRMR7JDYZ","created_at":"2026-05-18T12:33:24Z"},{"alias_kind":"pith_short_16","alias_value":"NQGIRMR7JDYZ7WDZ","created_at":"2026-05-18T12:33:24Z"},{"alias_kind":"pith_short_8","alias_value":"NQGIRMR7","created_at":"2026-05-18T12:33:24Z"}],"graph_snapshots":[{"event_id":"sha256:746781f9410d0c6bcbd5483d699848ab796fe6a648b337c94f9672860227a79f","target":"graph","created_at":"2026-05-17T23:52:35Z","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"},"paper":{"abstract_excerpt":"The project of superconducting magnetic system (SMS) for the magnetic refrigerator machine is proposed. The second-generation high-temperature superconducting tapes for SMS are developed, fabricated and tested in NRC Kurchatov Institute. The magnet consists of 12 non-insulated double pancake coils. The SMS is installed in the vacuum chamber and cooled by a cryo refrigerator.","authors_text":"A.V. Ovcharov, E.P. Krasnoperov, P.V. Volkov, S.V. Shavkin, V.E. Krylov, V.S. Korotkov, V.V. Guryev, V.V. Sychugov","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.supr-con","submitted_at":"2019-02-26T08:17:52Z","title":"Solenoid from experimental HTS tape for magnetic refrigeration"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1902.09789","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":"sha256:052b42bf0ee4b33f68bdc65bb5dc898b22af81547c69a3d72f5f45e38060465c","target":"record","created_at":"2026-05-17T23:52:35Z","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":"275b6d8599f97b6eacdaf557c1b997fa1a63e44b0b1601eb506bbf7a82646a21","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.supr-con","submitted_at":"2019-02-26T08:17:52Z","title_canon_sha256":"48b8681c452134d2ecb8f890a12b93a4929b77ddc22d00d2d924781da09776da"},"schema_version":"1.0","source":{"id":"1902.09789","kind":"arxiv","version":1}},"canonical_sha256":"6c0c88b23f48f19fd879d37d9ac79631c09bf01bd8ef2a93c9fb80981095b443","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"6c0c88b23f48f19fd879d37d9ac79631c09bf01bd8ef2a93c9fb80981095b443","first_computed_at":"2026-05-17T23:52:35.365911Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-17T23:52:35.365911Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"3EKUcZBzq5OTyQJfpys7LnrS4BTA1XVrRsjOoNFWYLODa2WkjPXgQDY/i/tVj+51YmwDumgC6wPz/6+DfxuPDA==","signature_status":"signed_v1","signed_at":"2026-05-17T23:52:35.366508Z","signed_message":"canonical_sha256_bytes"},"source_id":"1902.09789","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:052b42bf0ee4b33f68bdc65bb5dc898b22af81547c69a3d72f5f45e38060465c","sha256:746781f9410d0c6bcbd5483d699848ab796fe6a648b337c94f9672860227a79f"],"state_sha256":"846f5a8a880c06e34d69da98d84a9c242abe5b6e2191b10d14e13e8f8e58dfb7"}