{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2018:3TNJLE4QYRYES4WMA3CIKYWDI6","short_pith_number":"pith:3TNJLE4Q","canonical_record":{"source":{"id":"1810.07084","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.supr-con","submitted_at":"2018-10-16T15:36:36Z","cross_cats_sorted":[],"title_canon_sha256":"537b6bd2b8c3fbb115ec5ae4af32d0af9588e1d09ec33d936491c0e2930da8da","abstract_canon_sha256":"633b910be39a50b896d1868be9aa372470b9d7b9d3c2712b697bc81ff3d4b1fd"},"schema_version":"1.0"},"canonical_sha256":"dcda959390c4704972cc06c48562c347bc436426608695327a05040f352518e7","source":{"kind":"arxiv","id":"1810.07084","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1810.07084","created_at":"2026-05-18T00:01:52Z"},{"alias_kind":"arxiv_version","alias_value":"1810.07084v1","created_at":"2026-05-18T00:01:52Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1810.07084","created_at":"2026-05-18T00:01:52Z"},{"alias_kind":"pith_short_12","alias_value":"3TNJLE4QYRYE","created_at":"2026-05-18T12:32:05Z"},{"alias_kind":"pith_short_16","alias_value":"3TNJLE4QYRYES4WM","created_at":"2026-05-18T12:32:05Z"},{"alias_kind":"pith_short_8","alias_value":"3TNJLE4Q","created_at":"2026-05-18T12:32:05Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2018:3TNJLE4QYRYES4WMA3CIKYWDI6","target":"record","payload":{"canonical_record":{"source":{"id":"1810.07084","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.supr-con","submitted_at":"2018-10-16T15:36:36Z","cross_cats_sorted":[],"title_canon_sha256":"537b6bd2b8c3fbb115ec5ae4af32d0af9588e1d09ec33d936491c0e2930da8da","abstract_canon_sha256":"633b910be39a50b896d1868be9aa372470b9d7b9d3c2712b697bc81ff3d4b1fd"},"schema_version":"1.0"},"canonical_sha256":"dcda959390c4704972cc06c48562c347bc436426608695327a05040f352518e7","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:01:52.738260Z","signature_b64":"9542klhFu2V/7ldiyiHJCymSoXEu9Xedq72iqV5ZQ+0A84NLzz9PkIyOgdTHRYecUsa68WXhHJRwGUwgCwnEAQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"dcda959390c4704972cc06c48562c347bc436426608695327a05040f352518e7","last_reissued_at":"2026-05-18T00:01:52.737857Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:01:52.737857Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1810.07084","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":"2026-05-18T00:01:52Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"T9KLYDgMUyxFqvZjvDe6WzZvv5H7X1CoDtlbankkIvDmp1PcqMoRpwdYo3zXs1uy8zbJRNOV7Y/ot4zg9VIKCg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-19T05:03:54.452606Z"},"content_sha256":"fd2eecc45fb3c11a3ea65bf4373c4bc704c97162e59926d9bf0ccb6709d550ce","schema_version":"1.0","event_id":"sha256:fd2eecc45fb3c11a3ea65bf4373c4bc704c97162e59926d9bf0ccb6709d550ce"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2018:3TNJLE4QYRYES4WMA3CIKYWDI6","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Coexistence of superconductivity and magnetism in CaK(Fe$_{1-x}$Ni$_x$)$_4$As$_4$ as probed by $^{57}$Fe M\\\"ossbauer spectroscopy","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.supr-con","authors_text":"Mingyu Xu, Paul C. Canfield, Ruslan Prozorov, Sergey L. Bud'ko, Vladimir G. Kogan, William R. Meier","submitted_at":"2018-10-16T15:36:36Z","abstract_excerpt":"Temperature dependent $^{57}$Fe M\\\"ossbauer spectroscopy and specific heat measurements for CaK(Fe$_{1-x}$Ni$_x$)$_4$As$_4$ with $x$ = 0, 0.017, 0.033, and 0.049 are presented. No magnetic hyperfine field (e.g. no static magnetic order) down to 5.5 K was detected for $x$ = 0 and 0.017 in agreement with the absence of any additional feature below superconducting transition temperature, $T_c$, in the specific heat data. The evolution of magnetic hyperfine field with temperature was studied for $x$ = 0.033 and 0.049. The long-range magnetic order in these two compounds coexists with superconducti"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1810.07084","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":"2026-05-18T00:01:52Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"OP7/7dnPAo3BMVqppS4HGbgnTa/rvU9LloxXlN4BIlH5qKL9n0+ORMCv4ApDIE4WHnIAx5HGo+PQSq6DHs40Cw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-19T05:03:54.453252Z"},"content_sha256":"4c4afe050c9132835b42f5d5bb2298e5b85292c93b1be1f4eef51970eb0a853c","schema_version":"1.0","event_id":"sha256:4c4afe050c9132835b42f5d5bb2298e5b85292c93b1be1f4eef51970eb0a853c"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/3TNJLE4QYRYES4WMA3CIKYWDI6/bundle.json","state_url":"https://pith.science/pith/3TNJLE4QYRYES4WMA3CIKYWDI6/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/3TNJLE4QYRYES4WMA3CIKYWDI6/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":"2026-05-19T05:03:54Z","links":{"resolver":"https://pith.science/pith/3TNJLE4QYRYES4WMA3CIKYWDI6","bundle":"https://pith.science/pith/3TNJLE4QYRYES4WMA3CIKYWDI6/bundle.json","state":"https://pith.science/pith/3TNJLE4QYRYES4WMA3CIKYWDI6/state.json","well_known_bundle":"https://pith.science/.well-known/pith/3TNJLE4QYRYES4WMA3CIKYWDI6/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2018:3TNJLE4QYRYES4WMA3CIKYWDI6","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":"633b910be39a50b896d1868be9aa372470b9d7b9d3c2712b697bc81ff3d4b1fd","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.supr-con","submitted_at":"2018-10-16T15:36:36Z","title_canon_sha256":"537b6bd2b8c3fbb115ec5ae4af32d0af9588e1d09ec33d936491c0e2930da8da"},"schema_version":"1.0","source":{"id":"1810.07084","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1810.07084","created_at":"2026-05-18T00:01:52Z"},{"alias_kind":"arxiv_version","alias_value":"1810.07084v1","created_at":"2026-05-18T00:01:52Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1810.07084","created_at":"2026-05-18T00:01:52Z"},{"alias_kind":"pith_short_12","alias_value":"3TNJLE4QYRYE","created_at":"2026-05-18T12:32:05Z"},{"alias_kind":"pith_short_16","alias_value":"3TNJLE4QYRYES4WM","created_at":"2026-05-18T12:32:05Z"},{"alias_kind":"pith_short_8","alias_value":"3TNJLE4Q","created_at":"2026-05-18T12:32:05Z"}],"graph_snapshots":[{"event_id":"sha256:4c4afe050c9132835b42f5d5bb2298e5b85292c93b1be1f4eef51970eb0a853c","target":"graph","created_at":"2026-05-18T00:01:52Z","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":"Temperature dependent $^{57}$Fe M\\\"ossbauer spectroscopy and specific heat measurements for CaK(Fe$_{1-x}$Ni$_x$)$_4$As$_4$ with $x$ = 0, 0.017, 0.033, and 0.049 are presented. No magnetic hyperfine field (e.g. no static magnetic order) down to 5.5 K was detected for $x$ = 0 and 0.017 in agreement with the absence of any additional feature below superconducting transition temperature, $T_c$, in the specific heat data. The evolution of magnetic hyperfine field with temperature was studied for $x$ = 0.033 and 0.049. The long-range magnetic order in these two compounds coexists with superconducti","authors_text":"Mingyu Xu, Paul C. Canfield, Ruslan Prozorov, Sergey L. Bud'ko, Vladimir G. Kogan, William R. Meier","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.supr-con","submitted_at":"2018-10-16T15:36:36Z","title":"Coexistence of superconductivity and magnetism in CaK(Fe$_{1-x}$Ni$_x$)$_4$As$_4$ as probed by $^{57}$Fe M\\\"ossbauer spectroscopy"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1810.07084","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:fd2eecc45fb3c11a3ea65bf4373c4bc704c97162e59926d9bf0ccb6709d550ce","target":"record","created_at":"2026-05-18T00:01:52Z","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":"633b910be39a50b896d1868be9aa372470b9d7b9d3c2712b697bc81ff3d4b1fd","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.supr-con","submitted_at":"2018-10-16T15:36:36Z","title_canon_sha256":"537b6bd2b8c3fbb115ec5ae4af32d0af9588e1d09ec33d936491c0e2930da8da"},"schema_version":"1.0","source":{"id":"1810.07084","kind":"arxiv","version":1}},"canonical_sha256":"dcda959390c4704972cc06c48562c347bc436426608695327a05040f352518e7","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"dcda959390c4704972cc06c48562c347bc436426608695327a05040f352518e7","first_computed_at":"2026-05-18T00:01:52.737857Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:01:52.737857Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"9542klhFu2V/7ldiyiHJCymSoXEu9Xedq72iqV5ZQ+0A84NLzz9PkIyOgdTHRYecUsa68WXhHJRwGUwgCwnEAQ==","signature_status":"signed_v1","signed_at":"2026-05-18T00:01:52.738260Z","signed_message":"canonical_sha256_bytes"},"source_id":"1810.07084","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:fd2eecc45fb3c11a3ea65bf4373c4bc704c97162e59926d9bf0ccb6709d550ce","sha256:4c4afe050c9132835b42f5d5bb2298e5b85292c93b1be1f4eef51970eb0a853c"],"state_sha256":"5dcefaec0a5baa33a10452f1f064edf34261983a66344b4f5cc61369cbbd631f"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"i/FK4TUnpAyee6Mb/otMuXsAX5lUKGRmJbEClAwqTNnZ0VDuNgAepjf/7Bs3cfdwx/zLOF9sgjrYo9ECneqiBg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-19T05:03:54.455602Z","bundle_sha256":"e2f32d1281a82290a9b133ed329197a27be83e600c8984aee176d5b6ba0673fe"}}