{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2006:VBFTQL5TJACQIEDQBGSQOTCK44","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":"dd621c0ee0862308abd48d8668175ff2d7ee83c8b7908ffc7b5719f6c168f5f9","cross_cats_sorted":["cond-mat.stat-mech"],"license":"","primary_cat":"cond-mat.other","submitted_at":"2006-07-03T07:45:36Z","title_canon_sha256":"6324722bbe0b9438a2f2b1be0bd522a72377833ab9ff8375dab6601547758703"},"schema_version":"1.0","source":{"id":"cond-mat/0607032","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"cond-mat/0607032","created_at":"2026-07-04T17:00:45Z"},{"alias_kind":"arxiv_version","alias_value":"cond-mat/0607032v1","created_at":"2026-07-04T17:00:45Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.cond-mat/0607032","created_at":"2026-07-04T17:00:45Z"},{"alias_kind":"pith_short_12","alias_value":"VBFTQL5TJACQ","created_at":"2026-07-04T17:00:45Z"},{"alias_kind":"pith_short_16","alias_value":"VBFTQL5TJACQIEDQ","created_at":"2026-07-04T17:00:45Z"},{"alias_kind":"pith_short_8","alias_value":"VBFTQL5T","created_at":"2026-07-04T17:00:45Z"}],"graph_snapshots":[{"event_id":"sha256:9e69c9b6ca7cc3b5c8f5927b87dbf3a71cb6576432451becc4592b14bd8ecae5","target":"graph","created_at":"2026-07-04T17:00:45Z","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/cond-mat/0607032/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"In recent torsional oscillator experiments by Kim and Chan (KC), a decrease of rotational inertia has been observed in solid 4He in porous materials and in a bulk annular channel. This observation strongly suggests the existence of \"non-classical rotational inertia\" (NCRI), i.e. superflow, in solid 4He. In order to study such a possible \"supersolid\" phase, we perform torsional oscillator experiments for cylindrical solid 4He samples. We have observed decreases of rotational inertia below 200 mK for two solid samples (pressures P = 4.1 and 3.0 MPa). The observed NCRI fraction at 70 mK is 0.14 %","authors_text":"Keiya Shirahama, Motoshi Kondo, Shunichi Takada, Yoshiyuki Shibayama","cross_cats":["cond-mat.stat-mech"],"headline":"","license":"","primary_cat":"cond-mat.other","submitted_at":"2006-07-03T07:45:36Z","title":"Observation of non-classical rotational inertia in bulk solid 4He"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"cond-mat/0607032","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:b23f8d187376eae9d645af24813212d73a1aa87439b4c53f00e03f051d467803","target":"record","created_at":"2026-07-04T17:00:45Z","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":"dd621c0ee0862308abd48d8668175ff2d7ee83c8b7908ffc7b5719f6c168f5f9","cross_cats_sorted":["cond-mat.stat-mech"],"license":"","primary_cat":"cond-mat.other","submitted_at":"2006-07-03T07:45:36Z","title_canon_sha256":"6324722bbe0b9438a2f2b1be0bd522a72377833ab9ff8375dab6601547758703"},"schema_version":"1.0","source":{"id":"cond-mat/0607032","kind":"arxiv","version":1}},"canonical_sha256":"a84b382fb3480504107009a5074c4ae7014556dc61798741b40c365ecf6affc1","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"a84b382fb3480504107009a5074c4ae7014556dc61798741b40c365ecf6affc1","first_computed_at":"2026-07-04T17:00:45.538995Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-04T17:00:45.538995Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"UOUrimhoUNLvabifgO8fvWhwyWpwdjMz7UvNUqxyuMAR3XCAPPuXKE7zBkcFyaTmdsGZaS9EhpJzkOB0t3+BDQ==","signature_status":"signed_v1","signed_at":"2026-07-04T17:00:45.539374Z","signed_message":"canonical_sha256_bytes"},"source_id":"cond-mat/0607032","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:b23f8d187376eae9d645af24813212d73a1aa87439b4c53f00e03f051d467803","sha256:9e69c9b6ca7cc3b5c8f5927b87dbf3a71cb6576432451becc4592b14bd8ecae5"],"state_sha256":"c8d1cedc8af1b96653e18c8c0d96858e4a9b0ed87dc2e9dc09d68853a180d3ee"}