{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2021:H7JQPJ2XFDHOPHFJGR7PSJKOYB","short_pith_number":"pith:H7JQPJ2X","canonical_record":{"source":{"id":"2104.02992","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cond-mat.str-el","submitted_at":"2021-04-07T08:42:05Z","cross_cats_sorted":["cond-mat.mtrl-sci","cond-mat.supr-con"],"title_canon_sha256":"7252a8176be53d45266b81e5cbce5fbd5b3e2b4fada9f471289000324da06ee7","abstract_canon_sha256":"46a665dd25be34d886844f3288978b7a8e5fc40641bb5a3991f0b30f2e1a7c1e"},"schema_version":"1.0"},"canonical_sha256":"3fd307a75728cee79ca9347ef9254ec07884352d3db8a389ace56215c11c2014","source":{"kind":"arxiv","id":"2104.02992","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2104.02992","created_at":"2026-07-05T02:30:01Z"},{"alias_kind":"arxiv_version","alias_value":"2104.02992v1","created_at":"2026-07-05T02:30:01Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2104.02992","created_at":"2026-07-05T02:30:01Z"},{"alias_kind":"pith_short_12","alias_value":"H7JQPJ2XFDHO","created_at":"2026-07-05T02:30:01Z"},{"alias_kind":"pith_short_16","alias_value":"H7JQPJ2XFDHOPHFJ","created_at":"2026-07-05T02:30:01Z"},{"alias_kind":"pith_short_8","alias_value":"H7JQPJ2X","created_at":"2026-07-05T02:30:01Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2021:H7JQPJ2XFDHOPHFJGR7PSJKOYB","target":"record","payload":{"canonical_record":{"source":{"id":"2104.02992","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cond-mat.str-el","submitted_at":"2021-04-07T08:42:05Z","cross_cats_sorted":["cond-mat.mtrl-sci","cond-mat.supr-con"],"title_canon_sha256":"7252a8176be53d45266b81e5cbce5fbd5b3e2b4fada9f471289000324da06ee7","abstract_canon_sha256":"46a665dd25be34d886844f3288978b7a8e5fc40641bb5a3991f0b30f2e1a7c1e"},"schema_version":"1.0"},"canonical_sha256":"3fd307a75728cee79ca9347ef9254ec07884352d3db8a389ace56215c11c2014","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T02:30:01.719502Z","signature_b64":"hw25FsbH6ISJabxk6wxaotChWVRqRpDL1Yvz/KQvYANgtjlHuaCOfVCz/pqgloQYMvjaId0M8amunrGFkcVdCQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"3fd307a75728cee79ca9347ef9254ec07884352d3db8a389ace56215c11c2014","last_reissued_at":"2026-07-05T02:30:01.719106Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T02:30:01.719106Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2104.02992","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":"2026-07-05T02:30:01Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"XcAxw3096fZAOc6aKrOJWGXLfAxDpt2IszoubfwN9WCJyecxU8KMFwndiQafGCL9zuxMUs2hPRAwA+1fjfNpDA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-05T14:12:20.782720Z"},"content_sha256":"7b2f48b2395afe2b9948797c23c3438ebe32e60723a6d0928f360372c7a1d1ff","schema_version":"1.0","event_id":"sha256:7b2f48b2395afe2b9948797c23c3438ebe32e60723a6d0928f360372c7a1d1ff"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2021:H7JQPJ2XFDHOPHFJGR7PSJKOYB","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Quantum phase transitions and superconductivity in the pressurized heavy-fermion compound CeCuP2","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":["cond-mat.mtrl-sci","cond-mat.supr-con"],"primary_cat":"cond-mat.str-el","authors_text":"Binglin Pan, Chuchu Zhu, Darren C. Peets, Erjian Cheng, Jiamin Ni, Linshu Wang, Shiyan Li, Tianping Ying, Yeyu Huang, Yi-feng Yang, Yuanji Xu","submitted_at":"2021-04-07T08:42:05Z","abstract_excerpt":"The tilted balance among competing interactions can yield a rich variety of ground states of quantum matter. In most Ce-based heavy fermion systems, this can often be qualitatively described by the famous Doniach phase diagram, owing to the competition between the Kondo screening and the Ruderman-Kittel-Kasuya-Yoshida exchange interaction. Here, we report an unusual pressure-temperature phase diagram beyond the Doniach one in CeCuP2. At ambient pressure, CeCuP2 displays typical heavy-fermion behavior, albeit with a very low carrier density. With lowering temperature, it shows a crossover from "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2104.02992","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2104.02992/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"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":"2026-07-05T02:30:01Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"sYhOVPcMkZk1KYORza6BTJxFOjspPrqFoum3++5Aj4cHavZB76Ix7PUeOIBFZPW0+UR+rSOjceXddwj59HNHCQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-05T14:12:20.783388Z"},"content_sha256":"c2db05e0d65ef548b403c1c7259f9102f71d3fd2952545694bc09510cfb43c0d","schema_version":"1.0","event_id":"sha256:c2db05e0d65ef548b403c1c7259f9102f71d3fd2952545694bc09510cfb43c0d"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/H7JQPJ2XFDHOPHFJGR7PSJKOYB/bundle.json","state_url":"https://pith.science/pith/H7JQPJ2XFDHOPHFJGR7PSJKOYB/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/H7JQPJ2XFDHOPHFJGR7PSJKOYB/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":"2026-07-05T14:12:20Z","links":{"resolver":"https://pith.science/pith/H7JQPJ2XFDHOPHFJGR7PSJKOYB","bundle":"https://pith.science/pith/H7JQPJ2XFDHOPHFJGR7PSJKOYB/bundle.json","state":"https://pith.science/pith/H7JQPJ2XFDHOPHFJGR7PSJKOYB/state.json","well_known_bundle":"https://pith.science/.well-known/pith/H7JQPJ2XFDHOPHFJGR7PSJKOYB/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2021:H7JQPJ2XFDHOPHFJGR7PSJKOYB","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":"46a665dd25be34d886844f3288978b7a8e5fc40641bb5a3991f0b30f2e1a7c1e","cross_cats_sorted":["cond-mat.mtrl-sci","cond-mat.supr-con"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cond-mat.str-el","submitted_at":"2021-04-07T08:42:05Z","title_canon_sha256":"7252a8176be53d45266b81e5cbce5fbd5b3e2b4fada9f471289000324da06ee7"},"schema_version":"1.0","source":{"id":"2104.02992","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2104.02992","created_at":"2026-07-05T02:30:01Z"},{"alias_kind":"arxiv_version","alias_value":"2104.02992v1","created_at":"2026-07-05T02:30:01Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2104.02992","created_at":"2026-07-05T02:30:01Z"},{"alias_kind":"pith_short_12","alias_value":"H7JQPJ2XFDHO","created_at":"2026-07-05T02:30:01Z"},{"alias_kind":"pith_short_16","alias_value":"H7JQPJ2XFDHOPHFJ","created_at":"2026-07-05T02:30:01Z"},{"alias_kind":"pith_short_8","alias_value":"H7JQPJ2X","created_at":"2026-07-05T02:30:01Z"}],"graph_snapshots":[{"event_id":"sha256:c2db05e0d65ef548b403c1c7259f9102f71d3fd2952545694bc09510cfb43c0d","target":"graph","created_at":"2026-07-05T02:30:01Z","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"},"integrity":{"available":true,"clean":true,"detectors_run":[],"endpoint":"/pith/2104.02992/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"The tilted balance among competing interactions can yield a rich variety of ground states of quantum matter. In most Ce-based heavy fermion systems, this can often be qualitatively described by the famous Doniach phase diagram, owing to the competition between the Kondo screening and the Ruderman-Kittel-Kasuya-Yoshida exchange interaction. Here, we report an unusual pressure-temperature phase diagram beyond the Doniach one in CeCuP2. At ambient pressure, CeCuP2 displays typical heavy-fermion behavior, albeit with a very low carrier density. With lowering temperature, it shows a crossover from ","authors_text":"Binglin Pan, Chuchu Zhu, Darren C. Peets, Erjian Cheng, Jiamin Ni, Linshu Wang, Shiyan Li, Tianping Ying, Yeyu Huang, Yi-feng Yang, Yuanji Xu","cross_cats":["cond-mat.mtrl-sci","cond-mat.supr-con"],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cond-mat.str-el","submitted_at":"2021-04-07T08:42:05Z","title":"Quantum phase transitions and superconductivity in the pressurized heavy-fermion compound CeCuP2"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2104.02992","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":"sha256:7b2f48b2395afe2b9948797c23c3438ebe32e60723a6d0928f360372c7a1d1ff","target":"record","created_at":"2026-07-05T02:30:01Z","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":"46a665dd25be34d886844f3288978b7a8e5fc40641bb5a3991f0b30f2e1a7c1e","cross_cats_sorted":["cond-mat.mtrl-sci","cond-mat.supr-con"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cond-mat.str-el","submitted_at":"2021-04-07T08:42:05Z","title_canon_sha256":"7252a8176be53d45266b81e5cbce5fbd5b3e2b4fada9f471289000324da06ee7"},"schema_version":"1.0","source":{"id":"2104.02992","kind":"arxiv","version":1}},"canonical_sha256":"3fd307a75728cee79ca9347ef9254ec07884352d3db8a389ace56215c11c2014","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"3fd307a75728cee79ca9347ef9254ec07884352d3db8a389ace56215c11c2014","first_computed_at":"2026-07-05T02:30:01.719106Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T02:30:01.719106Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"hw25FsbH6ISJabxk6wxaotChWVRqRpDL1Yvz/KQvYANgtjlHuaCOfVCz/pqgloQYMvjaId0M8amunrGFkcVdCQ==","signature_status":"signed_v1","signed_at":"2026-07-05T02:30:01.719502Z","signed_message":"canonical_sha256_bytes"},"source_id":"2104.02992","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:7b2f48b2395afe2b9948797c23c3438ebe32e60723a6d0928f360372c7a1d1ff","sha256:c2db05e0d65ef548b403c1c7259f9102f71d3fd2952545694bc09510cfb43c0d"],"state_sha256":"340ccbdaba6590c2a7309c8f0ed3a63f0855616aa6d9addb13555df7c851f8a0"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Vna8OSpnheblko+GQKPFzsE19nClfBLQC/ciuZxrCHoCMpO5HrXEpCFDpAuGp3+/JdFJIhpZF0C64NWpK5xdCg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-07-05T14:12:20.787068Z","bundle_sha256":"b3fcdbb3c4ea9cc02cbaa2d1cd9577fc30ae3c0acbaa6af9ee88716a305adaf0"}}