{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2011:UJEWV6V5P6I5GDZH2S6CZQH7GI","short_pith_number":"pith:UJEWV6V5","canonical_record":{"source":{"id":"1101.5117","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.supr-con","submitted_at":"2011-01-26T17:38:50Z","cross_cats_sorted":[],"title_canon_sha256":"d6bd30872e48cec0b7f7579ad61e61ac9c4317ce0bc4e294f7ea8ce63cf477d3","abstract_canon_sha256":"ce4312c7df7d5dab38000125691b26b162376f537e87b4f55f4920b39df9cb24"},"schema_version":"1.0"},"canonical_sha256":"a2496afabd7f91d30f27d4bc2cc0ff32339ed434b1ae7f9b75170f4178b1a5cb","source":{"kind":"arxiv","id":"1101.5117","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1101.5117","created_at":"2026-05-18T04:23:56Z"},{"alias_kind":"arxiv_version","alias_value":"1101.5117v1","created_at":"2026-05-18T04:23:56Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1101.5117","created_at":"2026-05-18T04:23:56Z"},{"alias_kind":"pith_short_12","alias_value":"UJEWV6V5P6I5","created_at":"2026-05-18T12:26:42Z"},{"alias_kind":"pith_short_16","alias_value":"UJEWV6V5P6I5GDZH","created_at":"2026-05-18T12:26:42Z"},{"alias_kind":"pith_short_8","alias_value":"UJEWV6V5","created_at":"2026-05-18T12:26:42Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2011:UJEWV6V5P6I5GDZH2S6CZQH7GI","target":"record","payload":{"canonical_record":{"source":{"id":"1101.5117","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.supr-con","submitted_at":"2011-01-26T17:38:50Z","cross_cats_sorted":[],"title_canon_sha256":"d6bd30872e48cec0b7f7579ad61e61ac9c4317ce0bc4e294f7ea8ce63cf477d3","abstract_canon_sha256":"ce4312c7df7d5dab38000125691b26b162376f537e87b4f55f4920b39df9cb24"},"schema_version":"1.0"},"canonical_sha256":"a2496afabd7f91d30f27d4bc2cc0ff32339ed434b1ae7f9b75170f4178b1a5cb","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T04:23:56.169788Z","signature_b64":"2JQ5y0/TpTEtagyRtUW+qy3tTmpgrRQftVzBzB4QbSKzfsX2388ZKNdX5y0C/tngb43zrtOAQTbM5NQyDTtxBQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"a2496afabd7f91d30f27d4bc2cc0ff32339ed434b1ae7f9b75170f4178b1a5cb","last_reissued_at":"2026-05-18T04:23:56.169222Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T04:23:56.169222Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1101.5117","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":"2026-05-18T04:23:56Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"78BL9q7016PQgvzBcTNoNrvUOnphqbxN9a50Z7tG60tT0Py9NFvFU6z9nAwBwpWJFgrXoUe22LTCHwxJ723SDA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-29T18:26:45.719094Z"},"content_sha256":"9d442469910b45cd614a9b6d07afc023ed8cc1120fc7a938ac074f4e00079908","schema_version":"1.0","event_id":"sha256:9d442469910b45cd614a9b6d07afc023ed8cc1120fc7a938ac074f4e00079908"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2011:UJEWV6V5P6I5GDZH2S6CZQH7GI","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Nodeless superconductivity in K$_x$Fe$_{2-y}$Se$_2$ single crystals revealed by low temperature specific heat","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.supr-con","authors_text":"Bing Shen, Bin Zeng, Chunhong Li, Duming Wang, Genfu Chen, Hai-Hu Wen, Jianbao He","submitted_at":"2011-01-26T17:38:50Z","abstract_excerpt":"Low temperature specific heat (SH) has been measured in K$_x$Fe$_{2-y}$Se$_2$ single crystals with T$_c$ = 32 K. The SH anomaly associated with the superconducting transition is moderate and sharp yielding a value of $\\Delta C/T \\mid_{T_c}$ = 11.6 $\\pm$ 1.0 $mJ/mol K^2$. The residual SH coefficient $\\gamma(0)$ in the superconducting state at T$\\rightarrow$ 0 is very small with a value of about 0.39 $mJ/mol K^2$. The magnetic field induced enhancement of the low-T SH exhibits a rough linear feature indicating a nodeless gap. This is further supported by the scaling based on the s-wave approach "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1101.5117","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":"2026-05-18T04:23:56Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"33XNDS+7Z/Z8e2R0KENrJc25I6n9ronU8H/vZNmDq5LRYt2eDv71sGywZdyyRKBTua7B8amRZU7uQE1vLZ/jBQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-29T18:26:45.719772Z"},"content_sha256":"9f95d7ca58a2a0f4133b045134f81da0814908f50b26564660c99df8b3b52ca9","schema_version":"1.0","event_id":"sha256:9f95d7ca58a2a0f4133b045134f81da0814908f50b26564660c99df8b3b52ca9"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/UJEWV6V5P6I5GDZH2S6CZQH7GI/bundle.json","state_url":"https://pith.science/pith/UJEWV6V5P6I5GDZH2S6CZQH7GI/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/UJEWV6V5P6I5GDZH2S6CZQH7GI/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":"2026-05-29T18:26:45Z","links":{"resolver":"https://pith.science/pith/UJEWV6V5P6I5GDZH2S6CZQH7GI","bundle":"https://pith.science/pith/UJEWV6V5P6I5GDZH2S6CZQH7GI/bundle.json","state":"https://pith.science/pith/UJEWV6V5P6I5GDZH2S6CZQH7GI/state.json","well_known_bundle":"https://pith.science/.well-known/pith/UJEWV6V5P6I5GDZH2S6CZQH7GI/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2011:UJEWV6V5P6I5GDZH2S6CZQH7GI","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":"ce4312c7df7d5dab38000125691b26b162376f537e87b4f55f4920b39df9cb24","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.supr-con","submitted_at":"2011-01-26T17:38:50Z","title_canon_sha256":"d6bd30872e48cec0b7f7579ad61e61ac9c4317ce0bc4e294f7ea8ce63cf477d3"},"schema_version":"1.0","source":{"id":"1101.5117","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1101.5117","created_at":"2026-05-18T04:23:56Z"},{"alias_kind":"arxiv_version","alias_value":"1101.5117v1","created_at":"2026-05-18T04:23:56Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1101.5117","created_at":"2026-05-18T04:23:56Z"},{"alias_kind":"pith_short_12","alias_value":"UJEWV6V5P6I5","created_at":"2026-05-18T12:26:42Z"},{"alias_kind":"pith_short_16","alias_value":"UJEWV6V5P6I5GDZH","created_at":"2026-05-18T12:26:42Z"},{"alias_kind":"pith_short_8","alias_value":"UJEWV6V5","created_at":"2026-05-18T12:26:42Z"}],"graph_snapshots":[{"event_id":"sha256:9f95d7ca58a2a0f4133b045134f81da0814908f50b26564660c99df8b3b52ca9","target":"graph","created_at":"2026-05-18T04:23:56Z","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":"Low temperature specific heat (SH) has been measured in K$_x$Fe$_{2-y}$Se$_2$ single crystals with T$_c$ = 32 K. The SH anomaly associated with the superconducting transition is moderate and sharp yielding a value of $\\Delta C/T \\mid_{T_c}$ = 11.6 $\\pm$ 1.0 $mJ/mol K^2$. The residual SH coefficient $\\gamma(0)$ in the superconducting state at T$\\rightarrow$ 0 is very small with a value of about 0.39 $mJ/mol K^2$. The magnetic field induced enhancement of the low-T SH exhibits a rough linear feature indicating a nodeless gap. This is further supported by the scaling based on the s-wave approach ","authors_text":"Bing Shen, Bin Zeng, Chunhong Li, Duming Wang, Genfu Chen, Hai-Hu Wen, Jianbao He","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.supr-con","submitted_at":"2011-01-26T17:38:50Z","title":"Nodeless superconductivity in K$_x$Fe$_{2-y}$Se$_2$ single crystals revealed by low temperature specific heat"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1101.5117","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":"sha256:9d442469910b45cd614a9b6d07afc023ed8cc1120fc7a938ac074f4e00079908","target":"record","created_at":"2026-05-18T04:23:56Z","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":"ce4312c7df7d5dab38000125691b26b162376f537e87b4f55f4920b39df9cb24","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.supr-con","submitted_at":"2011-01-26T17:38:50Z","title_canon_sha256":"d6bd30872e48cec0b7f7579ad61e61ac9c4317ce0bc4e294f7ea8ce63cf477d3"},"schema_version":"1.0","source":{"id":"1101.5117","kind":"arxiv","version":1}},"canonical_sha256":"a2496afabd7f91d30f27d4bc2cc0ff32339ed434b1ae7f9b75170f4178b1a5cb","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"a2496afabd7f91d30f27d4bc2cc0ff32339ed434b1ae7f9b75170f4178b1a5cb","first_computed_at":"2026-05-18T04:23:56.169222Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T04:23:56.169222Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"2JQ5y0/TpTEtagyRtUW+qy3tTmpgrRQftVzBzB4QbSKzfsX2388ZKNdX5y0C/tngb43zrtOAQTbM5NQyDTtxBQ==","signature_status":"signed_v1","signed_at":"2026-05-18T04:23:56.169788Z","signed_message":"canonical_sha256_bytes"},"source_id":"1101.5117","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:9d442469910b45cd614a9b6d07afc023ed8cc1120fc7a938ac074f4e00079908","sha256:9f95d7ca58a2a0f4133b045134f81da0814908f50b26564660c99df8b3b52ca9"],"state_sha256":"0e051972d104320726b9fa0d9332bdbd55203528b073f1e0f73eb03e5662a3df"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"ZK/2iZbmu20wPK4UIRkRLnVTJBx1D3+c7gAZ65EoiTSql1g+XQRgL2lu59cepmupqOAaWcmA6UGDq7CVkTOUBQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-29T18:26:45.723739Z","bundle_sha256":"485c354e6769071ca9a1c8b746bbc409ce1945b038552e3098a7052989a90300"}}