{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2013:CWSTLVBHWGB2CFCNRJQE3CGPBW","short_pith_number":"pith:CWSTLVBH","canonical_record":{"source":{"id":"1304.6464","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.supr-con","submitted_at":"2013-04-24T01:42:04Z","cross_cats_sorted":[],"title_canon_sha256":"443dd70e830fb466aef83caf0232bd3cd271743361f754c8c98beed986e02cfc","abstract_canon_sha256":"4bba3e00eafaa5fd26a8a0d091e851bfa783aab95bc355d9aa06914dc312fd73"},"schema_version":"1.0"},"canonical_sha256":"15a535d427b183a1144d8a604d88cf0d9c6535c7dba83bcae8e10568493317e1","source":{"kind":"arxiv","id":"1304.6464","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1304.6464","created_at":"2026-05-18T01:50:22Z"},{"alias_kind":"arxiv_version","alias_value":"1304.6464v1","created_at":"2026-05-18T01:50:22Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1304.6464","created_at":"2026-05-18T01:50:22Z"},{"alias_kind":"pith_short_12","alias_value":"CWSTLVBHWGB2","created_at":"2026-05-18T12:27:40Z"},{"alias_kind":"pith_short_16","alias_value":"CWSTLVBHWGB2CFCN","created_at":"2026-05-18T12:27:40Z"},{"alias_kind":"pith_short_8","alias_value":"CWSTLVBH","created_at":"2026-05-18T12:27:40Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2013:CWSTLVBHWGB2CFCNRJQE3CGPBW","target":"record","payload":{"canonical_record":{"source":{"id":"1304.6464","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.supr-con","submitted_at":"2013-04-24T01:42:04Z","cross_cats_sorted":[],"title_canon_sha256":"443dd70e830fb466aef83caf0232bd3cd271743361f754c8c98beed986e02cfc","abstract_canon_sha256":"4bba3e00eafaa5fd26a8a0d091e851bfa783aab95bc355d9aa06914dc312fd73"},"schema_version":"1.0"},"canonical_sha256":"15a535d427b183a1144d8a604d88cf0d9c6535c7dba83bcae8e10568493317e1","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:50:22.793696Z","signature_b64":"VbKOh2Scoc2BZ5nOk71qtZBbOj9N0j6WWaOWUzTkj5mlRZ7PoPLIMrw5OFL1AA/gFH/YAUiBVeLP2hZqUxUuBQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"15a535d427b183a1144d8a604d88cf0d9c6535c7dba83bcae8e10568493317e1","last_reissued_at":"2026-05-18T01:50:22.793000Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:50:22.793000Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1304.6464","source_version":1,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T01:50:22Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"HWxYqARbLyk3XdjqOweEgOskIIOJU5XBfQeVKgMuHfh3fnr2D9YXnR4nV+g7UAR1ejzHBaJLp48fKv2ZESG5BQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-27T16:42:47.548040Z"},"content_sha256":"1363b116798d76ccb97cd12c604b28c7c0c4faff6e46408580dc9329e36299d9","schema_version":"1.0","event_id":"sha256:1363b116798d76ccb97cd12c604b28c7c0c4faff6e46408580dc9329e36299d9"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2013:CWSTLVBHWGB2CFCNRJQE3CGPBW","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Thermodynamic Observation of a Vortex Melting Transition in the Fe-based Superconductor Ba0.5K0.5Fe2As2","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.supr-con","authors_text":"C. Meingast, H. K. Mak, L. Cevey, P. Burger, R. Lortz, T. Wolf","submitted_at":"2013-04-24T01:42:04Z","abstract_excerpt":"In cuprate high-temperature superconductors the small coherence lengths and high transition termperatures result in strong thermal fluctuations, which render the superconducting transition in applied magnetic fields into a wide continuous crossover. A state with zero resistance is found only below the vortex melting transition, which occurs well below the onset of superconducting correlations. Here we investigate the vortex phase diagram of the novel Fe-based superconductor in form of a high-quality single crystal of Ba0.5K0.5Fe2As2, using three different experimental probes (specific heat, th"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1304.6464","kind":"arxiv","version":1},"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":"2026-05-18T01:50:22Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"2M9vjDdq5UUo8qZMWUdaGdCwkkgUOGfyCbjGVgqzamXS/36UPeonV6jKPb5K1eswMtGrizMRup14rqhJL+aLCw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-27T16:42:47.548700Z"},"content_sha256":"8da83af5e0a43208bcf41fefc9ff25db15a96a9b38734bb51b70aaf47e81a17e","schema_version":"1.0","event_id":"sha256:8da83af5e0a43208bcf41fefc9ff25db15a96a9b38734bb51b70aaf47e81a17e"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/CWSTLVBHWGB2CFCNRJQE3CGPBW/bundle.json","state_url":"https://pith.science/pith/CWSTLVBHWGB2CFCNRJQE3CGPBW/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/CWSTLVBHWGB2CFCNRJQE3CGPBW/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":"2026-05-27T16:42:47Z","links":{"resolver":"https://pith.science/pith/CWSTLVBHWGB2CFCNRJQE3CGPBW","bundle":"https://pith.science/pith/CWSTLVBHWGB2CFCNRJQE3CGPBW/bundle.json","state":"https://pith.science/pith/CWSTLVBHWGB2CFCNRJQE3CGPBW/state.json","well_known_bundle":"https://pith.science/.well-known/pith/CWSTLVBHWGB2CFCNRJQE3CGPBW/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2013:CWSTLVBHWGB2CFCNRJQE3CGPBW","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":"4bba3e00eafaa5fd26a8a0d091e851bfa783aab95bc355d9aa06914dc312fd73","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.supr-con","submitted_at":"2013-04-24T01:42:04Z","title_canon_sha256":"443dd70e830fb466aef83caf0232bd3cd271743361f754c8c98beed986e02cfc"},"schema_version":"1.0","source":{"id":"1304.6464","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1304.6464","created_at":"2026-05-18T01:50:22Z"},{"alias_kind":"arxiv_version","alias_value":"1304.6464v1","created_at":"2026-05-18T01:50:22Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1304.6464","created_at":"2026-05-18T01:50:22Z"},{"alias_kind":"pith_short_12","alias_value":"CWSTLVBHWGB2","created_at":"2026-05-18T12:27:40Z"},{"alias_kind":"pith_short_16","alias_value":"CWSTLVBHWGB2CFCN","created_at":"2026-05-18T12:27:40Z"},{"alias_kind":"pith_short_8","alias_value":"CWSTLVBH","created_at":"2026-05-18T12:27:40Z"}],"graph_snapshots":[{"event_id":"sha256:8da83af5e0a43208bcf41fefc9ff25db15a96a9b38734bb51b70aaf47e81a17e","target":"graph","created_at":"2026-05-18T01:50:22Z","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":"In cuprate high-temperature superconductors the small coherence lengths and high transition termperatures result in strong thermal fluctuations, which render the superconducting transition in applied magnetic fields into a wide continuous crossover. A state with zero resistance is found only below the vortex melting transition, which occurs well below the onset of superconducting correlations. Here we investigate the vortex phase diagram of the novel Fe-based superconductor in form of a high-quality single crystal of Ba0.5K0.5Fe2As2, using three different experimental probes (specific heat, th","authors_text":"C. Meingast, H. K. Mak, L. Cevey, P. Burger, R. Lortz, T. Wolf","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.supr-con","submitted_at":"2013-04-24T01:42:04Z","title":"Thermodynamic Observation of a Vortex Melting Transition in the Fe-based Superconductor Ba0.5K0.5Fe2As2"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1304.6464","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":"sha256:1363b116798d76ccb97cd12c604b28c7c0c4faff6e46408580dc9329e36299d9","target":"record","created_at":"2026-05-18T01:50:22Z","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":"4bba3e00eafaa5fd26a8a0d091e851bfa783aab95bc355d9aa06914dc312fd73","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.supr-con","submitted_at":"2013-04-24T01:42:04Z","title_canon_sha256":"443dd70e830fb466aef83caf0232bd3cd271743361f754c8c98beed986e02cfc"},"schema_version":"1.0","source":{"id":"1304.6464","kind":"arxiv","version":1}},"canonical_sha256":"15a535d427b183a1144d8a604d88cf0d9c6535c7dba83bcae8e10568493317e1","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"15a535d427b183a1144d8a604d88cf0d9c6535c7dba83bcae8e10568493317e1","first_computed_at":"2026-05-18T01:50:22.793000Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:50:22.793000Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"VbKOh2Scoc2BZ5nOk71qtZBbOj9N0j6WWaOWUzTkj5mlRZ7PoPLIMrw5OFL1AA/gFH/YAUiBVeLP2hZqUxUuBQ==","signature_status":"signed_v1","signed_at":"2026-05-18T01:50:22.793696Z","signed_message":"canonical_sha256_bytes"},"source_id":"1304.6464","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:1363b116798d76ccb97cd12c604b28c7c0c4faff6e46408580dc9329e36299d9","sha256:8da83af5e0a43208bcf41fefc9ff25db15a96a9b38734bb51b70aaf47e81a17e"],"state_sha256":"a2b3d9cb395858f4284938e2335b2992161fd09a33ea45b8c50e6b1080ab1106"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"40Y27IvkBnCNJFiri2I3sUvyILfpu6H9ZCiDgvY50O1R6AqBUFtmjfzmD0DtB6JGmqk8SBGwnq3nrOL2nrlNBA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-27T16:42:47.551945Z","bundle_sha256":"260ed574d917a52b913cf8ee843cca29e0fec6bf348ed3373c5534c47802d1d6"}}