{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2018:WN7U72BV4YP3WWMLMUR7ASXCAI","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":"4e522704a85a3df3e82da99ffbffa9ee5d4f82a3c288990a888abefda8d3ca88","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2018-03-12T18:49:39Z","title_canon_sha256":"576d7aca5f0c85dc5ae8892a7e3f8df7b0db52e6e3521a6fc91dda7ef42f02db"},"schema_version":"1.0","source":{"id":"1803.04454","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1803.04454","created_at":"2026-05-18T00:08:09Z"},{"alias_kind":"arxiv_version","alias_value":"1803.04454v2","created_at":"2026-05-18T00:08:09Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1803.04454","created_at":"2026-05-18T00:08:09Z"},{"alias_kind":"pith_short_12","alias_value":"WN7U72BV4YP3","created_at":"2026-05-18T12:33:01Z"},{"alias_kind":"pith_short_16","alias_value":"WN7U72BV4YP3WWML","created_at":"2026-05-18T12:33:01Z"},{"alias_kind":"pith_short_8","alias_value":"WN7U72BV","created_at":"2026-05-18T12:33:01Z"}],"graph_snapshots":[{"event_id":"sha256:0264043a5ceaf2a91780af5ca96a8b31f922ca7163a6caeb83e0b3e5cd61418e","target":"graph","created_at":"2026-05-18T00:08:09Z","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":"We present thermal expansion and magnetostriction measurements on a CeCu2Si2 single crystal of A/S-type up to 17.9T magnetic field applied along the crystallographic a-direction (Delta L ll a ll H) and down to 0.015K temperature. We identify clear thermodynamic anomalies at the superconducting transition T_c and at two second order transitions T_A,B into ordered phases A and B. Our measurements establish for the first time the boundary of phase B at high field and low temperature. No evidence for additional high field phases above B is found up to the maximum field. We speculate based on our e","authors_text":"Christoph Geibel, Frank Steglich, Franziska Weickert, Philipp Gegenwart, Wolf Assmus","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2018-03-12T18:49:39Z","title":"Observation of two critical points linked to the high field phase B in CeCu2Si2"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1803.04454","kind":"arxiv","version":2},"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":"sha256:7d10ea8f3ffac97c23370c8d2ab8a9bc16d594233385afcbfd73614777b58a64","target":"record","created_at":"2026-05-18T00:08:09Z","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":"4e522704a85a3df3e82da99ffbffa9ee5d4f82a3c288990a888abefda8d3ca88","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2018-03-12T18:49:39Z","title_canon_sha256":"576d7aca5f0c85dc5ae8892a7e3f8df7b0db52e6e3521a6fc91dda7ef42f02db"},"schema_version":"1.0","source":{"id":"1803.04454","kind":"arxiv","version":2}},"canonical_sha256":"b37f4fe835e61fbb598b6523f04ae20224ad987666aa3404ef80184d9feef0aa","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"b37f4fe835e61fbb598b6523f04ae20224ad987666aa3404ef80184d9feef0aa","first_computed_at":"2026-05-18T00:08:09.948156Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:08:09.948156Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"QZTRlaVMnXP4YF66Dn6dy9d/sjHlCq5VFwpUQfkvyDAStGmHH/V02nmrZ81fexVcniY7vU/WD9/4dH4/1Ow3CA==","signature_status":"signed_v1","signed_at":"2026-05-18T00:08:09.948635Z","signed_message":"canonical_sha256_bytes"},"source_id":"1803.04454","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:7d10ea8f3ffac97c23370c8d2ab8a9bc16d594233385afcbfd73614777b58a64","sha256:0264043a5ceaf2a91780af5ca96a8b31f922ca7163a6caeb83e0b3e5cd61418e"],"state_sha256":"60d2952426bc711e6927dbbd69c1861368941151d4b410e89eea7a105a8cc142"}