{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2015:IYLOYUDRA5EUN5OP5PYXL24Z2F","short_pith_number":"pith:IYLOYUDR","canonical_record":{"source":{"id":"1501.03068","kind":"arxiv","version":3},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.supr-con","submitted_at":"2015-01-13T16:44:53Z","cross_cats_sorted":["cond-mat.str-el"],"title_canon_sha256":"50bef814d7b17e843a865627786202434c9d38cce74cc8af47d84762419fe648","abstract_canon_sha256":"f70bc8d0f4b901a02a1fa230c337ffba02f5c3a08b287b28dad33a238a507c26"},"schema_version":"1.0"},"canonical_sha256":"4616ec5071074946f5cfebf175eb99d172686fe912cf9c0c0ba88435146d70a1","source":{"kind":"arxiv","id":"1501.03068","version":3},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1501.03068","created_at":"2026-05-18T02:19:00Z"},{"alias_kind":"arxiv_version","alias_value":"1501.03068v3","created_at":"2026-05-18T02:19:00Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1501.03068","created_at":"2026-05-18T02:19:00Z"},{"alias_kind":"pith_short_12","alias_value":"IYLOYUDRA5EU","created_at":"2026-05-18T12:29:27Z"},{"alias_kind":"pith_short_16","alias_value":"IYLOYUDRA5EUN5OP","created_at":"2026-05-18T12:29:27Z"},{"alias_kind":"pith_short_8","alias_value":"IYLOYUDR","created_at":"2026-05-18T12:29:27Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2015:IYLOYUDRA5EUN5OP5PYXL24Z2F","target":"record","payload":{"canonical_record":{"source":{"id":"1501.03068","kind":"arxiv","version":3},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.supr-con","submitted_at":"2015-01-13T16:44:53Z","cross_cats_sorted":["cond-mat.str-el"],"title_canon_sha256":"50bef814d7b17e843a865627786202434c9d38cce74cc8af47d84762419fe648","abstract_canon_sha256":"f70bc8d0f4b901a02a1fa230c337ffba02f5c3a08b287b28dad33a238a507c26"},"schema_version":"1.0"},"canonical_sha256":"4616ec5071074946f5cfebf175eb99d172686fe912cf9c0c0ba88435146d70a1","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:19:00.489689Z","signature_b64":"a2/9vo2Z7KrblPdSQOGT7RLde23a7/CCwRezDB4dyNbaatVoO8L46/L8Zsp8p4jrY3nOtFt5pfbMDmffgGX5DQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"4616ec5071074946f5cfebf175eb99d172686fe912cf9c0c0ba88435146d70a1","last_reissued_at":"2026-05-18T02:19:00.489236Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:19:00.489236Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1501.03068","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":"2026-05-18T02:19:00Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"fdUsyEb4F+ttMujZrZRV4HbWswVGJ/oWFQ22pysfGbD+5pD+VpqsRXOt7oHmCKDeICASUrFN5eLihXGUfsLfCg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-04T23:22:32.799908Z"},"content_sha256":"4dafe5424b37dc45b1d17cad4e588309a409208122aab76993fef62a24baddad","schema_version":"1.0","event_id":"sha256:4dafe5424b37dc45b1d17cad4e588309a409208122aab76993fef62a24baddad"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2015:IYLOYUDRA5EUN5OP5PYXL24Z2F","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Origin of the superconducting state in the collapsed tetragonal phase of 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":"Daniel Guterding, Harald O. Jeschke, Roser Valenti, Steffen Backes","submitted_at":"2015-01-13T16:44:53Z","abstract_excerpt":"Recently, KFe$_2$As$_2$ was shown to exhibit a structural phase transition from a tetragonal to a collapsed tetragonal phase under applied pressure of about $15~\\mathrm{GPa}$. Surprisingly, the collapsed tetragonal phase hosts a superconducting state with $T_c \\sim 12~\\mathrm{K}$, while the tetragonal phase is a $T_c \\leq 3.4~\\mathrm{K}$ superconductor. We show that the key difference between the previously known non-superconducting collapsed tetragonal phase in AFe$_2$As$_2$ (A= Ba, Ca, Eu, Sr) and the superconducting collapsed tetragonal phase in KFe$_2$As$_2$ is the qualitatively distinct e"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1501.03068","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":"2026-05-18T02:19:00Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"SPwyJonnaJd5U7DSWcf1v3wCkCqQeX6+lMStxg0kaZfNjiPJmJpLMo9Ouk+w2+94wRAu/n1G+JTgVzR91/VaDQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-04T23:22:32.800281Z"},"content_sha256":"f1cd52dc62c5c3a0d5e2273d78a567b7fab18f0a29b65e0bb29d399fcf3996a9","schema_version":"1.0","event_id":"sha256:f1cd52dc62c5c3a0d5e2273d78a567b7fab18f0a29b65e0bb29d399fcf3996a9"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/IYLOYUDRA5EUN5OP5PYXL24Z2F/bundle.json","state_url":"https://pith.science/pith/IYLOYUDRA5EUN5OP5PYXL24Z2F/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/IYLOYUDRA5EUN5OP5PYXL24Z2F/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":"2026-06-04T23:22:32Z","links":{"resolver":"https://pith.science/pith/IYLOYUDRA5EUN5OP5PYXL24Z2F","bundle":"https://pith.science/pith/IYLOYUDRA5EUN5OP5PYXL24Z2F/bundle.json","state":"https://pith.science/pith/IYLOYUDRA5EUN5OP5PYXL24Z2F/state.json","well_known_bundle":"https://pith.science/.well-known/pith/IYLOYUDRA5EUN5OP5PYXL24Z2F/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2015:IYLOYUDRA5EUN5OP5PYXL24Z2F","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":"f70bc8d0f4b901a02a1fa230c337ffba02f5c3a08b287b28dad33a238a507c26","cross_cats_sorted":["cond-mat.str-el"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.supr-con","submitted_at":"2015-01-13T16:44:53Z","title_canon_sha256":"50bef814d7b17e843a865627786202434c9d38cce74cc8af47d84762419fe648"},"schema_version":"1.0","source":{"id":"1501.03068","kind":"arxiv","version":3}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1501.03068","created_at":"2026-05-18T02:19:00Z"},{"alias_kind":"arxiv_version","alias_value":"1501.03068v3","created_at":"2026-05-18T02:19:00Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1501.03068","created_at":"2026-05-18T02:19:00Z"},{"alias_kind":"pith_short_12","alias_value":"IYLOYUDRA5EU","created_at":"2026-05-18T12:29:27Z"},{"alias_kind":"pith_short_16","alias_value":"IYLOYUDRA5EUN5OP","created_at":"2026-05-18T12:29:27Z"},{"alias_kind":"pith_short_8","alias_value":"IYLOYUDR","created_at":"2026-05-18T12:29:27Z"}],"graph_snapshots":[{"event_id":"sha256:f1cd52dc62c5c3a0d5e2273d78a567b7fab18f0a29b65e0bb29d399fcf3996a9","target":"graph","created_at":"2026-05-18T02:19:00Z","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":"Recently, KFe$_2$As$_2$ was shown to exhibit a structural phase transition from a tetragonal to a collapsed tetragonal phase under applied pressure of about $15~\\mathrm{GPa}$. Surprisingly, the collapsed tetragonal phase hosts a superconducting state with $T_c \\sim 12~\\mathrm{K}$, while the tetragonal phase is a $T_c \\leq 3.4~\\mathrm{K}$ superconductor. We show that the key difference between the previously known non-superconducting collapsed tetragonal phase in AFe$_2$As$_2$ (A= Ba, Ca, Eu, Sr) and the superconducting collapsed tetragonal phase in KFe$_2$As$_2$ is the qualitatively distinct e","authors_text":"Daniel Guterding, Harald O. Jeschke, Roser Valenti, Steffen Backes","cross_cats":["cond-mat.str-el"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.supr-con","submitted_at":"2015-01-13T16:44:53Z","title":"Origin of the superconducting state in the collapsed tetragonal phase of KFe2As2"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1501.03068","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":"sha256:4dafe5424b37dc45b1d17cad4e588309a409208122aab76993fef62a24baddad","target":"record","created_at":"2026-05-18T02:19:00Z","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":"f70bc8d0f4b901a02a1fa230c337ffba02f5c3a08b287b28dad33a238a507c26","cross_cats_sorted":["cond-mat.str-el"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.supr-con","submitted_at":"2015-01-13T16:44:53Z","title_canon_sha256":"50bef814d7b17e843a865627786202434c9d38cce74cc8af47d84762419fe648"},"schema_version":"1.0","source":{"id":"1501.03068","kind":"arxiv","version":3}},"canonical_sha256":"4616ec5071074946f5cfebf175eb99d172686fe912cf9c0c0ba88435146d70a1","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"4616ec5071074946f5cfebf175eb99d172686fe912cf9c0c0ba88435146d70a1","first_computed_at":"2026-05-18T02:19:00.489236Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:19:00.489236Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"a2/9vo2Z7KrblPdSQOGT7RLde23a7/CCwRezDB4dyNbaatVoO8L46/L8Zsp8p4jrY3nOtFt5pfbMDmffgGX5DQ==","signature_status":"signed_v1","signed_at":"2026-05-18T02:19:00.489689Z","signed_message":"canonical_sha256_bytes"},"source_id":"1501.03068","source_kind":"arxiv","source_version":3}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:4dafe5424b37dc45b1d17cad4e588309a409208122aab76993fef62a24baddad","sha256:f1cd52dc62c5c3a0d5e2273d78a567b7fab18f0a29b65e0bb29d399fcf3996a9"],"state_sha256":"ec74c3326fd279ddbe419364b68c2699f4f41d55a8c19e6268d4c6e9bc1678d4"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"pomxilxef5BDYLxI6LaTQtfkrft9cHrBH9fRfoC10xo+AmdPkO1QMQJNlKFbYfiSYYRUAvTxpSkHP0/SieLLDg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-04T23:22:32.803941Z","bundle_sha256":"ca249ae7590122ad58a6ab1b58c0536af1349428a1773a4f27ed4ae56df371bf"}}