{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2013:4LCPHER27H5KR3EU4TCS4YXFI3","short_pith_number":"pith:4LCPHER2","canonical_record":{"source":{"id":"1303.2961","kind":"arxiv","version":3},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.supr-con","submitted_at":"2013-03-12T17:29:54Z","cross_cats_sorted":["cond-mat.str-el"],"title_canon_sha256":"fe9f02c09713fb5dcf698e1c6d3fbceda2138b4b80b41861048f5f58fe0bdf9d","abstract_canon_sha256":"7b73d37b35b46d07d0b03c8c2626f2e9cf2c60f71707b4597c6a410e3b35ca35"},"schema_version":"1.0"},"canonical_sha256":"e2c4f3923af9faa8ec94e4c52e62e546c57776d914859f07e17f6bb2bd191368","source":{"kind":"arxiv","id":"1303.2961","version":3},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1303.2961","created_at":"2026-05-18T03:19:04Z"},{"alias_kind":"arxiv_version","alias_value":"1303.2961v3","created_at":"2026-05-18T03:19:04Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1303.2961","created_at":"2026-05-18T03:19:04Z"},{"alias_kind":"pith_short_12","alias_value":"4LCPHER27H5K","created_at":"2026-05-18T12:27:34Z"},{"alias_kind":"pith_short_16","alias_value":"4LCPHER27H5KR3EU","created_at":"2026-05-18T12:27:34Z"},{"alias_kind":"pith_short_8","alias_value":"4LCPHER2","created_at":"2026-05-18T12:27:34Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2013:4LCPHER27H5KR3EU4TCS4YXFI3","target":"record","payload":{"canonical_record":{"source":{"id":"1303.2961","kind":"arxiv","version":3},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.supr-con","submitted_at":"2013-03-12T17:29:54Z","cross_cats_sorted":["cond-mat.str-el"],"title_canon_sha256":"fe9f02c09713fb5dcf698e1c6d3fbceda2138b4b80b41861048f5f58fe0bdf9d","abstract_canon_sha256":"7b73d37b35b46d07d0b03c8c2626f2e9cf2c60f71707b4597c6a410e3b35ca35"},"schema_version":"1.0"},"canonical_sha256":"e2c4f3923af9faa8ec94e4c52e62e546c57776d914859f07e17f6bb2bd191368","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T03:19:04.300973Z","signature_b64":"kGskamOVz1u+8Ac2exiHHyh50qe8L+PWOs6PGxnQcMFGW5TIsmrsblecv7tNvQ134ZoskRK44X4kwS2/eqy4Dg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"e2c4f3923af9faa8ec94e4c52e62e546c57776d914859f07e17f6bb2bd191368","last_reissued_at":"2026-05-18T03:19:04.300218Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T03:19:04.300218Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1303.2961","source_version":3,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T03:19:04Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Ezxft/DVNxWaTuD6nnrVdei5FnO/luNZMzOOTX0eYNP02y/c7nkpiLBRrOXAfu1vW9LcAOQf2MulKw14odwpDg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-28T06:30:38.183622Z"},"content_sha256":"5885c99df73305c45be9bc7ba0c449c00f96f14796080afb2687b4a603224d91","schema_version":"1.0","event_id":"sha256:5885c99df73305c45be9bc7ba0c449c00f96f14796080afb2687b4a603224d91"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2013:4LCPHER27H5KR3EU4TCS4YXFI3","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Change of pairing symmetry in the iron-based superconductor KFe2As2","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cond-mat.str-el"],"primary_cat":"cond-mat.supr-con","authors_text":"A. F. Wang, A. Juneau-Fecteau, F. F. Tafti, J.-Ph. Reid, Louis Taillefer, M.-E. Delage, N. Doiron-Leyraud, S. Rene de Cotret, X.-G. Luo, X. H. Chen","submitted_at":"2013-03-12T17:29:54Z","abstract_excerpt":"The pairing mechanism in iron-based superconductors is the subject of ongoing debate. Proximity to an antiferromagnetic phase suggests that pairing is mediated by spin fluctuations, but orbital fluctuations have also been invoked. The former typically favour a pairing state of extended s-wave symmetry with a gap that changes sign between electron and hole Fermi surfaces (s+-), while the latter yield a standard s-wave state without sign change (s++). Here we show that applying pressure to KFe2As2 induces a change of pairing state. The critical temperature Tc decreases with pressure initially, a"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1303.2961","kind":"arxiv","version":3},"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":"2026-05-18T03:19:04Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"tVmB53vJeoZhYQCVeQxaAr52ic+akfTrULc+Hhvn29z5oToaAOUTt/SdEmVDKfovDuz/dPD2v8ZrlCOipYhKAw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-28T06:30:38.183974Z"},"content_sha256":"4c8a0155ab44b3f24b91f7191b860e5fb674d0026c9ad90ddae533510db2cdf9","schema_version":"1.0","event_id":"sha256:4c8a0155ab44b3f24b91f7191b860e5fb674d0026c9ad90ddae533510db2cdf9"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/4LCPHER27H5KR3EU4TCS4YXFI3/bundle.json","state_url":"https://pith.science/pith/4LCPHER27H5KR3EU4TCS4YXFI3/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/4LCPHER27H5KR3EU4TCS4YXFI3/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":"2026-05-28T06:30:38Z","links":{"resolver":"https://pith.science/pith/4LCPHER27H5KR3EU4TCS4YXFI3","bundle":"https://pith.science/pith/4LCPHER27H5KR3EU4TCS4YXFI3/bundle.json","state":"https://pith.science/pith/4LCPHER27H5KR3EU4TCS4YXFI3/state.json","well_known_bundle":"https://pith.science/.well-known/pith/4LCPHER27H5KR3EU4TCS4YXFI3/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2013:4LCPHER27H5KR3EU4TCS4YXFI3","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":"7b73d37b35b46d07d0b03c8c2626f2e9cf2c60f71707b4597c6a410e3b35ca35","cross_cats_sorted":["cond-mat.str-el"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.supr-con","submitted_at":"2013-03-12T17:29:54Z","title_canon_sha256":"fe9f02c09713fb5dcf698e1c6d3fbceda2138b4b80b41861048f5f58fe0bdf9d"},"schema_version":"1.0","source":{"id":"1303.2961","kind":"arxiv","version":3}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1303.2961","created_at":"2026-05-18T03:19:04Z"},{"alias_kind":"arxiv_version","alias_value":"1303.2961v3","created_at":"2026-05-18T03:19:04Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1303.2961","created_at":"2026-05-18T03:19:04Z"},{"alias_kind":"pith_short_12","alias_value":"4LCPHER27H5K","created_at":"2026-05-18T12:27:34Z"},{"alias_kind":"pith_short_16","alias_value":"4LCPHER27H5KR3EU","created_at":"2026-05-18T12:27:34Z"},{"alias_kind":"pith_short_8","alias_value":"4LCPHER2","created_at":"2026-05-18T12:27:34Z"}],"graph_snapshots":[{"event_id":"sha256:4c8a0155ab44b3f24b91f7191b860e5fb674d0026c9ad90ddae533510db2cdf9","target":"graph","created_at":"2026-05-18T03:19:04Z","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 pairing mechanism in iron-based superconductors is the subject of ongoing debate. Proximity to an antiferromagnetic phase suggests that pairing is mediated by spin fluctuations, but orbital fluctuations have also been invoked. The former typically favour a pairing state of extended s-wave symmetry with a gap that changes sign between electron and hole Fermi surfaces (s+-), while the latter yield a standard s-wave state without sign change (s++). Here we show that applying pressure to KFe2As2 induces a change of pairing state. The critical temperature Tc decreases with pressure initially, a","authors_text":"A. F. Wang, A. Juneau-Fecteau, F. F. Tafti, J.-Ph. Reid, Louis Taillefer, M.-E. Delage, N. Doiron-Leyraud, S. Rene de Cotret, X.-G. Luo, X. H. Chen","cross_cats":["cond-mat.str-el"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.supr-con","submitted_at":"2013-03-12T17:29:54Z","title":"Change of pairing symmetry in the iron-based superconductor KFe2As2"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1303.2961","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":"sha256:5885c99df73305c45be9bc7ba0c449c00f96f14796080afb2687b4a603224d91","target":"record","created_at":"2026-05-18T03:19:04Z","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":"7b73d37b35b46d07d0b03c8c2626f2e9cf2c60f71707b4597c6a410e3b35ca35","cross_cats_sorted":["cond-mat.str-el"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.supr-con","submitted_at":"2013-03-12T17:29:54Z","title_canon_sha256":"fe9f02c09713fb5dcf698e1c6d3fbceda2138b4b80b41861048f5f58fe0bdf9d"},"schema_version":"1.0","source":{"id":"1303.2961","kind":"arxiv","version":3}},"canonical_sha256":"e2c4f3923af9faa8ec94e4c52e62e546c57776d914859f07e17f6bb2bd191368","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"e2c4f3923af9faa8ec94e4c52e62e546c57776d914859f07e17f6bb2bd191368","first_computed_at":"2026-05-18T03:19:04.300218Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T03:19:04.300218Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"kGskamOVz1u+8Ac2exiHHyh50qe8L+PWOs6PGxnQcMFGW5TIsmrsblecv7tNvQ134ZoskRK44X4kwS2/eqy4Dg==","signature_status":"signed_v1","signed_at":"2026-05-18T03:19:04.300973Z","signed_message":"canonical_sha256_bytes"},"source_id":"1303.2961","source_kind":"arxiv","source_version":3}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:5885c99df73305c45be9bc7ba0c449c00f96f14796080afb2687b4a603224d91","sha256:4c8a0155ab44b3f24b91f7191b860e5fb674d0026c9ad90ddae533510db2cdf9"],"state_sha256":"9bc81123485be7f261cc51712b9896b4a19ef2a0e28e5a4a2abccbecef5d3f59"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"xQ8xns/oiynUIh+qD41arVlNjWNtzOiAdBph6gxbTqY6CpT8dA/NL7et6+EvwwxajR6biWmwxCFRBMhkIF6gAA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-28T06:30:38.185957Z","bundle_sha256":"0bc5ea4642cf0ce66846a3428afa820db9202eb6b70287885fda381580fd2d0c"}}