{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2017:6L5G63ETY5IJVYMNWPBW7PJV4H","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":"0f183e28fd841922601ff9f8e81f6fb8224de01d89394ac15458dd6e66643d65","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.supr-con","submitted_at":"2017-01-08T16:41:52Z","title_canon_sha256":"10684121f4575ad77426958e206fefd99dba20d92d1a2bb04c4406fd6e08e685"},"schema_version":"1.0","source":{"id":"1701.01982","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1701.01982","created_at":"2026-05-18T00:53:12Z"},{"alias_kind":"arxiv_version","alias_value":"1701.01982v1","created_at":"2026-05-18T00:53:12Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1701.01982","created_at":"2026-05-18T00:53:12Z"},{"alias_kind":"pith_short_12","alias_value":"6L5G63ETY5IJ","created_at":"2026-05-18T12:31:03Z"},{"alias_kind":"pith_short_16","alias_value":"6L5G63ETY5IJVYMN","created_at":"2026-05-18T12:31:03Z"},{"alias_kind":"pith_short_8","alias_value":"6L5G63ET","created_at":"2026-05-18T12:31:03Z"}],"graph_snapshots":[{"event_id":"sha256:0e73457b15e63c21aa524f255e9670b64dc6955c1e75cead5efa9f3aa7598b55","target":"graph","created_at":"2026-05-18T00:53:12Z","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 energy gap has been measured and the characteristic phonon energies determined for the superconducting compound $La_{1.8}Sr_{02}CuO_4$ from the current-voltage characteristics of point contacts with a copper counterelectrode. The temperature dependence of the energy gap was determined. pacs 73.40.Jn, 74.25.Kc, 74.45.+c, 73.40.-c, 74.20.Mn, 74.70.Ad, 74.72.-h, Dn","authors_text":"A.R. Kaul', I.E. Graboi, I.K. Yanson, L.F. Rybal'chenko, M.A.Obolenskii, N.B. Brandt, N.L.Bobrov, V.V. Fisun, V.V. Moshchalkov, Yu.D. Tret'yakov","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.supr-con","submitted_at":"2017-01-08T16:41:52Z","title":"Point contact spectroscopy of the high-temperature superconductor $La_{1.8}Sr_{0.2}CuO_{4}$"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1701.01982","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:bc05661f780618d049dec9f0cac528c5aa6fce7cdafd4d82f6d4e1008e3fbd11","target":"record","created_at":"2026-05-18T00:53:12Z","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":"0f183e28fd841922601ff9f8e81f6fb8224de01d89394ac15458dd6e66643d65","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.supr-con","submitted_at":"2017-01-08T16:41:52Z","title_canon_sha256":"10684121f4575ad77426958e206fefd99dba20d92d1a2bb04c4406fd6e08e685"},"schema_version":"1.0","source":{"id":"1701.01982","kind":"arxiv","version":1}},"canonical_sha256":"f2fa6f6c93c7509ae18db3c36fbd35e1ecda14f930b249474abf7360cd1d7998","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"f2fa6f6c93c7509ae18db3c36fbd35e1ecda14f930b249474abf7360cd1d7998","first_computed_at":"2026-05-18T00:53:12.911789Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:53:12.911789Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"NoZW+SUyBcwVa9NygHg1DgFjnaWMrUd+QNt8uLw9XLWLoFHxotuPdqQFr73vWUEM+GpE2o9SWoBbegXxIeEQCA==","signature_status":"signed_v1","signed_at":"2026-05-18T00:53:12.912285Z","signed_message":"canonical_sha256_bytes"},"source_id":"1701.01982","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:bc05661f780618d049dec9f0cac528c5aa6fce7cdafd4d82f6d4e1008e3fbd11","sha256:0e73457b15e63c21aa524f255e9670b64dc6955c1e75cead5efa9f3aa7598b55"],"state_sha256":"7f86104054ee203e66a643ae9edda285eba434263d5f2b9619d64c6e4858b262"}