{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2012:APL25RWJ7FIF7SLD6WCODEQH3Q","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":"4888bf097587500f7f85a652463c17583665d263ee64fc6f5316b4801c5d9704","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.supr-con","submitted_at":"2012-12-22T20:00:47Z","title_canon_sha256":"44d1913a531cee8e8ab288993c2523caa206a7506298ebd06299f7e9b8b44c15"},"schema_version":"1.0","source":{"id":"1212.5719","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1212.5719","created_at":"2026-05-18T01:52:28Z"},{"alias_kind":"arxiv_version","alias_value":"1212.5719v2","created_at":"2026-05-18T01:52:28Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1212.5719","created_at":"2026-05-18T01:52:28Z"},{"alias_kind":"pith_short_12","alias_value":"APL25RWJ7FIF","created_at":"2026-05-18T12:26:58Z"},{"alias_kind":"pith_short_16","alias_value":"APL25RWJ7FIF7SLD","created_at":"2026-05-18T12:26:58Z"},{"alias_kind":"pith_short_8","alias_value":"APL25RWJ","created_at":"2026-05-18T12:26:58Z"}],"graph_snapshots":[{"event_id":"sha256:26ea3f448427403aac69cb982d56ede15d343300b5ecb3d70c0ca7c99ad93e4a","target":"graph","created_at":"2026-05-18T01:52:28Z","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":"Recent measurements of the doping dependence of the London penetration depth \\lambda(x) at low temperatures in clean samples of isovalent BaFe_2[As_(1-x)P_x]_2 at T<<Tc [Hashimoto et al., Science 336, 1554 (2012)] revealed a peak in \\lambda(x) near optimal doping x=0.3. The observation of the peak at T<<Tc, points to the existence of the quantum critical point (QCP) beneath the superconducting dome. We associate such a QCP with the onset of a spin- density-wave order and show that the renormalization of \\lambda(x) by critical magnetic fluctuations, gives rise to the observed feature. We argue ","authors_text":"A. Levchenko, A.V. Chubukov, M.G. Vavilov, M. Khodas","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.supr-con","submitted_at":"2012-12-22T20:00:47Z","title":"Enhancement of the London penetration depth in pnictides at the onset of SDW order under superconducting dome"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1212.5719","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:b5dc2105899ff6bf6de3be0af5b0244db5191b0267a48c264fb5f4bb02aed2e1","target":"record","created_at":"2026-05-18T01:52:28Z","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":"4888bf097587500f7f85a652463c17583665d263ee64fc6f5316b4801c5d9704","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.supr-con","submitted_at":"2012-12-22T20:00:47Z","title_canon_sha256":"44d1913a531cee8e8ab288993c2523caa206a7506298ebd06299f7e9b8b44c15"},"schema_version":"1.0","source":{"id":"1212.5719","kind":"arxiv","version":2}},"canonical_sha256":"03d7aec6c9f9505fc963f584e19207dc237bca908c654c9b09d9d6cff8445f41","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"03d7aec6c9f9505fc963f584e19207dc237bca908c654c9b09d9d6cff8445f41","first_computed_at":"2026-05-18T01:52:28.905418Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:52:28.905418Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"/mECufMsfgRxytqZoNuij2VuNKXEFfe8nmPXdZXftds7k6cNV7dyRCoq2xGmEtW5BSPi11Y0d8rEBkF+YZx8CA==","signature_status":"signed_v1","signed_at":"2026-05-18T01:52:28.905993Z","signed_message":"canonical_sha256_bytes"},"source_id":"1212.5719","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:b5dc2105899ff6bf6de3be0af5b0244db5191b0267a48c264fb5f4bb02aed2e1","sha256:26ea3f448427403aac69cb982d56ede15d343300b5ecb3d70c0ca7c99ad93e4a"],"state_sha256":"3c3a8a29b2ee32580cfb3bf70a1242c4421bf9632d22aa2c88ba7aa56190bf3d"}