{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2013:UWRHOJHCP5PCUAJDJGUY2YGGLN","short_pith_number":"pith:UWRHOJHC","canonical_record":{"source":{"id":"1311.2250","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.supr-con","submitted_at":"2013-11-10T08:38:50Z","cross_cats_sorted":[],"title_canon_sha256":"2ebee6bebd2c178a642b22be2fe9d55e73877a0d649c7553cbff89e2e2cff64c","abstract_canon_sha256":"e73d9a26ae29cf22f21660088aa812fc8c6e524917d3ef2bae7eb532a745b66a"},"schema_version":"1.0"},"canonical_sha256":"a5a27724e27f5e2a012349a98d60c65b4ccd14e097b5d62e89da762922c79796","source":{"kind":"arxiv","id":"1311.2250","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1311.2250","created_at":"2026-05-18T02:43:36Z"},{"alias_kind":"arxiv_version","alias_value":"1311.2250v2","created_at":"2026-05-18T02:43:36Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1311.2250","created_at":"2026-05-18T02:43:36Z"},{"alias_kind":"pith_short_12","alias_value":"UWRHOJHCP5PC","created_at":"2026-05-18T12:28:02Z"},{"alias_kind":"pith_short_16","alias_value":"UWRHOJHCP5PCUAJD","created_at":"2026-05-18T12:28:02Z"},{"alias_kind":"pith_short_8","alias_value":"UWRHOJHC","created_at":"2026-05-18T12:28:02Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2013:UWRHOJHCP5PCUAJDJGUY2YGGLN","target":"record","payload":{"canonical_record":{"source":{"id":"1311.2250","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.supr-con","submitted_at":"2013-11-10T08:38:50Z","cross_cats_sorted":[],"title_canon_sha256":"2ebee6bebd2c178a642b22be2fe9d55e73877a0d649c7553cbff89e2e2cff64c","abstract_canon_sha256":"e73d9a26ae29cf22f21660088aa812fc8c6e524917d3ef2bae7eb532a745b66a"},"schema_version":"1.0"},"canonical_sha256":"a5a27724e27f5e2a012349a98d60c65b4ccd14e097b5d62e89da762922c79796","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:43:36.746928Z","signature_b64":"B0UECasN5Ua5IXJaK09jBR8iiSe8k5BC2+6tD4btnLoIMFFm25LlQbU10JK6nrUvoXYQHsHCiqRIXhmYA8Z0AA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"a5a27724e27f5e2a012349a98d60c65b4ccd14e097b5d62e89da762922c79796","last_reissued_at":"2026-05-18T02:43:36.746156Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:43:36.746156Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1311.2250","source_version":2,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T02:43:36Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"ckjqRil083QrtR8tmx+HRKzuR6ujrnMYRVi5F4VhswUp4e0xOQZVGIdtOZKF85x1ofijw+6yKelF8U9NMUGaDg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-09T06:12:35.474989Z"},"content_sha256":"9021681d6d47c7c1e62072954fbb222420ae1eb11389775080cf25768464f188","schema_version":"1.0","event_id":"sha256:9021681d6d47c7c1e62072954fbb222420ae1eb11389775080cf25768464f188"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2013:UWRHOJHCP5PCUAJDJGUY2YGGLN","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Pairing and the phase diagram of the normal coherence length $\\xi_N(T,x)$ above $T_c$ of $La_{2-x}Sr_xCuO_4$ thin films probed by the Josephson effect","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.supr-con","authors_text":"Gad Koren, Tal Kirzhner","submitted_at":"2013-11-10T08:38:50Z","abstract_excerpt":"Critical currents $I_c$ were measured in Superconducting - normal - superconducting SNS c-axis junctions, where S was optimally doped $YBa_2Cu_3O_{7-\\delta}$ below $T_c$ (90 K) and N was $La_{2-x}Sr_xCuO_4$ above its $T_c$ ($<$25 K) but in the pseudogap regime. $I_c$ was measured versus temperature T in junctions with various N-barrier thicknesses $d$ and doping levels $x$. From the proximity effect relation $I_c(T)\\propto exp[-d/\\xi_N(T)]$, the normal coherence length $\\xi_N(T)$ of N was extracted and plotted versus T. Besides finding a long range proximity effect as reported also by others, "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1311.2250","kind":"arxiv","version":2},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"references":{"count":0,"sample":[],"resolved_work":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","internal_anchors":0},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"author_claims":{"count":0,"strong_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"builder_version":"pith-number-builder-2026-05-17-v1"},"verdict_id":null},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T02:43:36Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"4+/eq0OBSTlTwHAkRWpYvbWIPkYpR+c/CFRjYMvEKW2yXIAXxSQk2MV+kSfI/bBEyXjbpM03IPSDyejTa5bnDw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-09T06:12:35.475478Z"},"content_sha256":"7b4b0fba32117002ab7f62727fd0f26354e849ae815ab7ae22c7766d4bbf3fa6","schema_version":"1.0","event_id":"sha256:7b4b0fba32117002ab7f62727fd0f26354e849ae815ab7ae22c7766d4bbf3fa6"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/UWRHOJHCP5PCUAJDJGUY2YGGLN/bundle.json","state_url":"https://pith.science/pith/UWRHOJHCP5PCUAJDJGUY2YGGLN/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/UWRHOJHCP5PCUAJDJGUY2YGGLN/bundle.json","status":"primary"}],"public_keys":[{"key_id":"pith-v1-2026-05","algorithm":"ed25519","format":"raw","public_key_b64":"stVStoiQhXFxp4s2pdzPNoqVNBMojDU/fJ2db5S3CbM=","public_key_hex":"b2d552b68890857171a78b36a5dccf368a953413288c353f7c9d9d6f94b709b3","fingerprint_sha256_b32_first128bits":"RVFV5Z2OI2J3ZUO7ERDEBCYNKS","fingerprint_sha256_hex":"8d4b5ee74e4693bcd1df2446408b0d54","rotates_at":null,"url":"https://pith.science/pith-signing-key.json","notes":"Pith uses this Ed25519 key to sign canonical record SHA-256 digests. Verify with: ed25519_verify(public_key, message=canonical_sha256_bytes, signature=base64decode(signature_b64))."}],"merge_version":"pith-open-graph-merge-v1","built_at":"2026-06-09T06:12:35Z","links":{"resolver":"https://pith.science/pith/UWRHOJHCP5PCUAJDJGUY2YGGLN","bundle":"https://pith.science/pith/UWRHOJHCP5PCUAJDJGUY2YGGLN/bundle.json","state":"https://pith.science/pith/UWRHOJHCP5PCUAJDJGUY2YGGLN/state.json","well_known_bundle":"https://pith.science/.well-known/pith/UWRHOJHCP5PCUAJDJGUY2YGGLN/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2013:UWRHOJHCP5PCUAJDJGUY2YGGLN","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":"e73d9a26ae29cf22f21660088aa812fc8c6e524917d3ef2bae7eb532a745b66a","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.supr-con","submitted_at":"2013-11-10T08:38:50Z","title_canon_sha256":"2ebee6bebd2c178a642b22be2fe9d55e73877a0d649c7553cbff89e2e2cff64c"},"schema_version":"1.0","source":{"id":"1311.2250","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1311.2250","created_at":"2026-05-18T02:43:36Z"},{"alias_kind":"arxiv_version","alias_value":"1311.2250v2","created_at":"2026-05-18T02:43:36Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1311.2250","created_at":"2026-05-18T02:43:36Z"},{"alias_kind":"pith_short_12","alias_value":"UWRHOJHCP5PC","created_at":"2026-05-18T12:28:02Z"},{"alias_kind":"pith_short_16","alias_value":"UWRHOJHCP5PCUAJD","created_at":"2026-05-18T12:28:02Z"},{"alias_kind":"pith_short_8","alias_value":"UWRHOJHC","created_at":"2026-05-18T12:28:02Z"}],"graph_snapshots":[{"event_id":"sha256:7b4b0fba32117002ab7f62727fd0f26354e849ae815ab7ae22c7766d4bbf3fa6","target":"graph","created_at":"2026-05-18T02:43:36Z","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":"Critical currents $I_c$ were measured in Superconducting - normal - superconducting SNS c-axis junctions, where S was optimally doped $YBa_2Cu_3O_{7-\\delta}$ below $T_c$ (90 K) and N was $La_{2-x}Sr_xCuO_4$ above its $T_c$ ($<$25 K) but in the pseudogap regime. $I_c$ was measured versus temperature T in junctions with various N-barrier thicknesses $d$ and doping levels $x$. From the proximity effect relation $I_c(T)\\propto exp[-d/\\xi_N(T)]$, the normal coherence length $\\xi_N(T)$ of N was extracted and plotted versus T. Besides finding a long range proximity effect as reported also by others, ","authors_text":"Gad Koren, Tal Kirzhner","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.supr-con","submitted_at":"2013-11-10T08:38:50Z","title":"Pairing and the phase diagram of the normal coherence length $\\xi_N(T,x)$ above $T_c$ of $La_{2-x}Sr_xCuO_4$ thin films probed by the Josephson effect"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1311.2250","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":"sha256:9021681d6d47c7c1e62072954fbb222420ae1eb11389775080cf25768464f188","target":"record","created_at":"2026-05-18T02:43:36Z","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":"e73d9a26ae29cf22f21660088aa812fc8c6e524917d3ef2bae7eb532a745b66a","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.supr-con","submitted_at":"2013-11-10T08:38:50Z","title_canon_sha256":"2ebee6bebd2c178a642b22be2fe9d55e73877a0d649c7553cbff89e2e2cff64c"},"schema_version":"1.0","source":{"id":"1311.2250","kind":"arxiv","version":2}},"canonical_sha256":"a5a27724e27f5e2a012349a98d60c65b4ccd14e097b5d62e89da762922c79796","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"a5a27724e27f5e2a012349a98d60c65b4ccd14e097b5d62e89da762922c79796","first_computed_at":"2026-05-18T02:43:36.746156Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:43:36.746156Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"B0UECasN5Ua5IXJaK09jBR8iiSe8k5BC2+6tD4btnLoIMFFm25LlQbU10JK6nrUvoXYQHsHCiqRIXhmYA8Z0AA==","signature_status":"signed_v1","signed_at":"2026-05-18T02:43:36.746928Z","signed_message":"canonical_sha256_bytes"},"source_id":"1311.2250","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:9021681d6d47c7c1e62072954fbb222420ae1eb11389775080cf25768464f188","sha256:7b4b0fba32117002ab7f62727fd0f26354e849ae815ab7ae22c7766d4bbf3fa6"],"state_sha256":"c6dc1814a7663f2f5b8083dd21fa788ca185a3df9b15a864efea0d42a4128430"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"VoCzUbVYfLDNqVJLDnHc4AQ7EOLLxK6AqQLNkbPNZFHWyTsW+7vkHexjQOuKhu6cO6yZdL1ZdRnUfxEXa5rlDA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-09T06:12:35.478561Z","bundle_sha256":"d878700a27fdfdfb20efd97f0171692c180ea1081fc6ccb033e3ad0898940f71"}}