{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2011:DHTCU2BGQ64EUU4SBKPFKXZ7AG","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":"3cf66e4564472d70991d325a69084738a3661c7e97d2c17a2bbbacdc8ac0b129","cross_cats_sorted":["cond-mat.dis-nn"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2011-09-09T12:37:07Z","title_canon_sha256":"730eb9da786d6265e3d112c17dc263d13ac0a7cef2a4e453f8e270403e05ba46"},"schema_version":"1.0","source":{"id":"1109.1980","kind":"arxiv","version":3}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1109.1980","created_at":"2026-05-18T04:06:32Z"},{"alias_kind":"arxiv_version","alias_value":"1109.1980v3","created_at":"2026-05-18T04:06:32Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1109.1980","created_at":"2026-05-18T04:06:32Z"},{"alias_kind":"pith_short_12","alias_value":"DHTCU2BGQ64E","created_at":"2026-05-18T12:26:26Z"},{"alias_kind":"pith_short_16","alias_value":"DHTCU2BGQ64EUU4S","created_at":"2026-05-18T12:26:26Z"},{"alias_kind":"pith_short_8","alias_value":"DHTCU2BG","created_at":"2026-05-18T12:26:26Z"}],"graph_snapshots":[{"event_id":"sha256:e7eb2f9afaae092beee016291609ef35b2b4104877039cf9121d2f4529a75528","target":"graph","created_at":"2026-05-18T04:06:32Z","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":"High resolution X-ray powder-diffraction experiments on a well-characterized polycrystalline sample of the spin liquid Tb2Ti2O7 reveal that it shows normal positive thermal-expansion above 4 K, which does not agree with the intriguing anomalous negative thermal-expansion due to a magneto-elastic coupling reported for a single crystal sample below 20 K. We also performed a Rietveld profile refinement of a powder-diffraction pattern taken at a room temperature, and confirmed that it is consistent with the fully ordered cubic pyrochlore structure.","authors_text":"Hiroaki Kadowaki, Hiroshi Takatsu, Kazuki Goto, Tomohiro Taniguchi","cross_cats":["cond-mat.dis-nn"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2011-09-09T12:37:07Z","title":"Absence of anomalous negative lattice-expansion for polycrystalline sample of Tb2Ti2O7"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1109.1980","kind":"arxiv","version":3},"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":"sha256:08c17af817cdad82d4d169c2ab844eed6f1c724e4df9ddf92172d8b83a568c74","target":"record","created_at":"2026-05-18T04:06:32Z","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":"3cf66e4564472d70991d325a69084738a3661c7e97d2c17a2bbbacdc8ac0b129","cross_cats_sorted":["cond-mat.dis-nn"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2011-09-09T12:37:07Z","title_canon_sha256":"730eb9da786d6265e3d112c17dc263d13ac0a7cef2a4e453f8e270403e05ba46"},"schema_version":"1.0","source":{"id":"1109.1980","kind":"arxiv","version":3}},"canonical_sha256":"19e62a682687b84a53920a9e555f3f01ab0b05341a61bbb51b5b523506f728c0","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"19e62a682687b84a53920a9e555f3f01ab0b05341a61bbb51b5b523506f728c0","first_computed_at":"2026-05-18T04:06:32.973387Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T04:06:32.973387Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"HpuBT/4/9+doSc0X2qSh3CIook1DA+zC/gwKqcV+D4uEd53xedkVyKrUoNOynJO40CxFe2bK2wWgGBWdrYppAw==","signature_status":"signed_v1","signed_at":"2026-05-18T04:06:32.974167Z","signed_message":"canonical_sha256_bytes"},"source_id":"1109.1980","source_kind":"arxiv","source_version":3}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:08c17af817cdad82d4d169c2ab844eed6f1c724e4df9ddf92172d8b83a568c74","sha256:e7eb2f9afaae092beee016291609ef35b2b4104877039cf9121d2f4529a75528"],"state_sha256":"d88d991207a5de49d503f304a437e0e3e2153ff6f5f2fd01d182d9cdc5987145"}