{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2004:NOQZSKGXEIPFHUU5JTA3GVQ3F7","short_pith_number":"pith:NOQZSKGX","canonical_record":{"source":{"id":"cond-mat/0410143","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"cond-mat.supr-con","submitted_at":"2004-10-06T08:20:31Z","cross_cats_sorted":["cond-mat.str-el"],"title_canon_sha256":"41f9fd9061166cb032523767dd76181080d6f05994d0e3489fa03718668a0786","abstract_canon_sha256":"e92bc110cdecc9c349e917703e047f8e819ec094296ec18be15cfa9724ebb4ff"},"schema_version":"1.0"},"canonical_sha256":"6ba19928d7221e53d29d4cc1b3561b2fca24d62c39995c09073f1287568a6ec0","source":{"kind":"arxiv","id":"cond-mat/0410143","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"cond-mat/0410143","created_at":"2026-07-04T14:21:43Z"},{"alias_kind":"arxiv_version","alias_value":"cond-mat/0410143v1","created_at":"2026-07-04T14:21:43Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.cond-mat/0410143","created_at":"2026-07-04T14:21:43Z"},{"alias_kind":"pith_short_12","alias_value":"NOQZSKGXEIPF","created_at":"2026-07-04T14:21:43Z"},{"alias_kind":"pith_short_16","alias_value":"NOQZSKGXEIPFHUU5","created_at":"2026-07-04T14:21:43Z"},{"alias_kind":"pith_short_8","alias_value":"NOQZSKGX","created_at":"2026-07-04T14:21:43Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2004:NOQZSKGXEIPFHUU5JTA3GVQ3F7","target":"record","payload":{"canonical_record":{"source":{"id":"cond-mat/0410143","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"cond-mat.supr-con","submitted_at":"2004-10-06T08:20:31Z","cross_cats_sorted":["cond-mat.str-el"],"title_canon_sha256":"41f9fd9061166cb032523767dd76181080d6f05994d0e3489fa03718668a0786","abstract_canon_sha256":"e92bc110cdecc9c349e917703e047f8e819ec094296ec18be15cfa9724ebb4ff"},"schema_version":"1.0"},"canonical_sha256":"6ba19928d7221e53d29d4cc1b3561b2fca24d62c39995c09073f1287568a6ec0","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-04T14:21:43.018998Z","signature_b64":"P2WXvwTu809UzXwJE7oFxfeh/d2qYrCrw6TANZCXIhepK/EfdP5pH84rVwjXIB4zBE/nU9Nbo2zA1kUtKhvJDQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"6ba19928d7221e53d29d4cc1b3561b2fca24d62c39995c09073f1287568a6ec0","last_reissued_at":"2026-07-04T14:21:43.018623Z","signature_status":"signed_v1","first_computed_at":"2026-07-04T14:21:43.018623Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"cond-mat/0410143","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":"2026-07-04T14:21:43Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"qQDAYaTKnlGUJuwJP1WPa7Mj2/no2PwzlLjD4oHH0fAXMdspdcljnYaVAihIXw4qSccxZecV41RElSNTpW0FAQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-14T19:20:43.379989Z"},"content_sha256":"7a3c2cc6cc41156c86a80b58b30096ae2fb2e4178662c34261ce03b17b91d8ea","schema_version":"1.0","event_id":"sha256:7a3c2cc6cc41156c86a80b58b30096ae2fb2e4178662c34261ce03b17b91d8ea"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2004:NOQZSKGXEIPFHUU5JTA3GVQ3F7","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Spin and Valence-Fluctuation Mediated Superconductivity in Pressurized Fe and CeCu2(Si/Ge)2","license":"","headline":"","cross_cats":["cond-mat.str-el"],"primary_cat":"cond-mat.supr-con","authors_text":"Alexander T. Holmes, D. Jaccard","submitted_at":"2004-10-06T08:20:31Z","abstract_excerpt":"We review the evidence supporting valence-fluctuation mediated superconductivity in CeCu2Si2 and CeCu2Ge2, where Tc reaches 2.4 K at high pressure. In these systems the valence and magnetic critical points, at p_V and p_c respectively, are well separated. Characteristic signatures associated with both phenomena are distinct. In contrast, the valence and spin fluctuation regions appear much closer in most Ce based compounds. Concerning d-transition metals, superconductivity in pure iron emerges in the pressure window 15-30 GPa with the onset of Tc up to almost 3 K. All relevant observations poi"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"cond-mat/0410143","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/cond-mat/0410143/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":"2026-07-04T14:21:43Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"ZhuaT5NtnnZDDie5Zor2yrMJJRIeWlLwwzwDR+2+LDBk5W4NbnWyoP1aNV6u7ePc4jJyajdqx6Zojgim4+fUDg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-14T19:20:43.380317Z"},"content_sha256":"91439dd9bb5dc00d96a9f668ec8e01e87b81d6610b70fb44db421e457f7e11c2","schema_version":"1.0","event_id":"sha256:91439dd9bb5dc00d96a9f668ec8e01e87b81d6610b70fb44db421e457f7e11c2"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/NOQZSKGXEIPFHUU5JTA3GVQ3F7/bundle.json","state_url":"https://pith.science/pith/NOQZSKGXEIPFHUU5JTA3GVQ3F7/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/NOQZSKGXEIPFHUU5JTA3GVQ3F7/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":"2026-08-14T19:20:43Z","links":{"resolver":"https://pith.science/pith/NOQZSKGXEIPFHUU5JTA3GVQ3F7","bundle":"https://pith.science/pith/NOQZSKGXEIPFHUU5JTA3GVQ3F7/bundle.json","state":"https://pith.science/pith/NOQZSKGXEIPFHUU5JTA3GVQ3F7/state.json","well_known_bundle":"https://pith.science/.well-known/pith/NOQZSKGXEIPFHUU5JTA3GVQ3F7/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2004:NOQZSKGXEIPFHUU5JTA3GVQ3F7","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":"e92bc110cdecc9c349e917703e047f8e819ec094296ec18be15cfa9724ebb4ff","cross_cats_sorted":["cond-mat.str-el"],"license":"","primary_cat":"cond-mat.supr-con","submitted_at":"2004-10-06T08:20:31Z","title_canon_sha256":"41f9fd9061166cb032523767dd76181080d6f05994d0e3489fa03718668a0786"},"schema_version":"1.0","source":{"id":"cond-mat/0410143","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"cond-mat/0410143","created_at":"2026-07-04T14:21:43Z"},{"alias_kind":"arxiv_version","alias_value":"cond-mat/0410143v1","created_at":"2026-07-04T14:21:43Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.cond-mat/0410143","created_at":"2026-07-04T14:21:43Z"},{"alias_kind":"pith_short_12","alias_value":"NOQZSKGXEIPF","created_at":"2026-07-04T14:21:43Z"},{"alias_kind":"pith_short_16","alias_value":"NOQZSKGXEIPFHUU5","created_at":"2026-07-04T14:21:43Z"},{"alias_kind":"pith_short_8","alias_value":"NOQZSKGX","created_at":"2026-07-04T14:21:43Z"}],"graph_snapshots":[{"event_id":"sha256:91439dd9bb5dc00d96a9f668ec8e01e87b81d6610b70fb44db421e457f7e11c2","target":"graph","created_at":"2026-07-04T14:21:43Z","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/cond-mat/0410143/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We review the evidence supporting valence-fluctuation mediated superconductivity in CeCu2Si2 and CeCu2Ge2, where Tc reaches 2.4 K at high pressure. In these systems the valence and magnetic critical points, at p_V and p_c respectively, are well separated. Characteristic signatures associated with both phenomena are distinct. In contrast, the valence and spin fluctuation regions appear much closer in most Ce based compounds. Concerning d-transition metals, superconductivity in pure iron emerges in the pressure window 15-30 GPa with the onset of Tc up to almost 3 K. All relevant observations poi","authors_text":"Alexander T. Holmes, D. Jaccard","cross_cats":["cond-mat.str-el"],"headline":"","license":"","primary_cat":"cond-mat.supr-con","submitted_at":"2004-10-06T08:20:31Z","title":"Spin and Valence-Fluctuation Mediated Superconductivity in Pressurized Fe and CeCu2(Si/Ge)2"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"cond-mat/0410143","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":"sha256:7a3c2cc6cc41156c86a80b58b30096ae2fb2e4178662c34261ce03b17b91d8ea","target":"record","created_at":"2026-07-04T14:21:43Z","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":"e92bc110cdecc9c349e917703e047f8e819ec094296ec18be15cfa9724ebb4ff","cross_cats_sorted":["cond-mat.str-el"],"license":"","primary_cat":"cond-mat.supr-con","submitted_at":"2004-10-06T08:20:31Z","title_canon_sha256":"41f9fd9061166cb032523767dd76181080d6f05994d0e3489fa03718668a0786"},"schema_version":"1.0","source":{"id":"cond-mat/0410143","kind":"arxiv","version":1}},"canonical_sha256":"6ba19928d7221e53d29d4cc1b3561b2fca24d62c39995c09073f1287568a6ec0","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"6ba19928d7221e53d29d4cc1b3561b2fca24d62c39995c09073f1287568a6ec0","first_computed_at":"2026-07-04T14:21:43.018623Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-04T14:21:43.018623Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"P2WXvwTu809UzXwJE7oFxfeh/d2qYrCrw6TANZCXIhepK/EfdP5pH84rVwjXIB4zBE/nU9Nbo2zA1kUtKhvJDQ==","signature_status":"signed_v1","signed_at":"2026-07-04T14:21:43.018998Z","signed_message":"canonical_sha256_bytes"},"source_id":"cond-mat/0410143","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:7a3c2cc6cc41156c86a80b58b30096ae2fb2e4178662c34261ce03b17b91d8ea","sha256:91439dd9bb5dc00d96a9f668ec8e01e87b81d6610b70fb44db421e457f7e11c2"],"state_sha256":"557a13b377cea3e74cfb681eb2375034babb3118435cbf4a202138d9afedcc3f"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"NfpW/3y4LmBOqky5CWG+jaEdDrSchcgP2im2mVlubFsz+uGv3xT8nw0pas8BL4bTKj8sXBUWXBQZTnivmku6Ag==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-14T19:20:43.384144Z","bundle_sha256":"f7d051c4a2fbbe0aca64cace9c79149152fafaf0b584905d84dba3eb34725f2a"}}