{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2012:JD2CKC3IRK6YTX3B36G3YIAAFB","short_pith_number":"pith:JD2CKC3I","canonical_record":{"source":{"id":"1212.4636","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2012-12-19T12:24:04Z","cross_cats_sorted":[],"title_canon_sha256":"fc5a7cff9e051391a2d7fb0cb04ec900a47f51da95ab735f9834dae56b779d55","abstract_canon_sha256":"52134696047c3e5331620b1716ec26d32a6cc8c4165d15fc887b462d56d4320b"},"schema_version":"1.0"},"canonical_sha256":"48f4250b688abd89df61df8dbc200028450b978860434de888010959a417eebc","source":{"kind":"arxiv","id":"1212.4636","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1212.4636","created_at":"2026-05-18T03:29:29Z"},{"alias_kind":"arxiv_version","alias_value":"1212.4636v2","created_at":"2026-05-18T03:29:29Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1212.4636","created_at":"2026-05-18T03:29:29Z"},{"alias_kind":"pith_short_12","alias_value":"JD2CKC3IRK6Y","created_at":"2026-05-18T12:27:11Z"},{"alias_kind":"pith_short_16","alias_value":"JD2CKC3IRK6YTX3B","created_at":"2026-05-18T12:27:11Z"},{"alias_kind":"pith_short_8","alias_value":"JD2CKC3I","created_at":"2026-05-18T12:27:11Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2012:JD2CKC3IRK6YTX3B36G3YIAAFB","target":"record","payload":{"canonical_record":{"source":{"id":"1212.4636","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2012-12-19T12:24:04Z","cross_cats_sorted":[],"title_canon_sha256":"fc5a7cff9e051391a2d7fb0cb04ec900a47f51da95ab735f9834dae56b779d55","abstract_canon_sha256":"52134696047c3e5331620b1716ec26d32a6cc8c4165d15fc887b462d56d4320b"},"schema_version":"1.0"},"canonical_sha256":"48f4250b688abd89df61df8dbc200028450b978860434de888010959a417eebc","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T03:29:29.428295Z","signature_b64":"SHuv79Rl6l/z6nMPTKhM7fHJXxqXA8+5ef+kGxaVT/5oVo3vRgjUENKVw91TAZ5EhMBkRZeynny4yOr4VgvLDA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"48f4250b688abd89df61df8dbc200028450b978860434de888010959a417eebc","last_reissued_at":"2026-05-18T03:29:29.427549Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T03:29:29.427549Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1212.4636","source_version":2,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T03:29:29Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"MZrzWIsrkLZVWkxOe1eqYuMUd6AoRZ415YDUhwsTcHIEguB9oJLOndVwpsPPbAWebib4CzoGSC9X/BDN7cjJAw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-31T08:36:57.100097Z"},"content_sha256":"24e35e9420318533434eecce7e05b190b7f7e8fcd66bb06923bf8f930be3f980","schema_version":"1.0","event_id":"sha256:24e35e9420318533434eecce7e05b190b7f7e8fcd66bb06923bf8f930be3f980"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2012:JD2CKC3IRK6YTX3B36G3YIAAFB","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Quantum criticality and first-order transitions in the extended periodic Anderson model","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.str-el","authors_text":"I. Hagymasi, J. Solyom, K. Itai","submitted_at":"2012-12-19T12:24:04Z","abstract_excerpt":"We investigate the behavior of the periodic Anderson model in the presence of $d$-$f$ Coulomb interaction ($U_{df}$) using mean-field theory, variational calculation, and exact diagonalization of finite chains. The variational approach based on the Gutzwiller trial wave function gives a critical value of $U_{df}$ and two quantum critical points (QCPs), where the valence susceptibility diverges. We derive the critical exponent for the valence susceptibility and investigate how the position of the QCP depends on the other parameters of the Hamiltonian. For larger values of $U_{df}$, the Kondo re"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1212.4636","kind":"arxiv","version":2},"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":"2026-05-18T03:29:29Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"vw1kkU92tlBjsEWUCidEiTlHjt9dBkTHiGmxfb2KziQ4KiGrjUW1lcQBMRXMt/Em/mh/zq8zKARjlavrBgbBAw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-31T08:36:57.100762Z"},"content_sha256":"b11340e237b0b1df4bc396a2c099a5ee02c9b1ea57d18c30e670e87abce5c1f0","schema_version":"1.0","event_id":"sha256:b11340e237b0b1df4bc396a2c099a5ee02c9b1ea57d18c30e670e87abce5c1f0"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/JD2CKC3IRK6YTX3B36G3YIAAFB/bundle.json","state_url":"https://pith.science/pith/JD2CKC3IRK6YTX3B36G3YIAAFB/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/JD2CKC3IRK6YTX3B36G3YIAAFB/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":"2026-05-31T08:36:57Z","links":{"resolver":"https://pith.science/pith/JD2CKC3IRK6YTX3B36G3YIAAFB","bundle":"https://pith.science/pith/JD2CKC3IRK6YTX3B36G3YIAAFB/bundle.json","state":"https://pith.science/pith/JD2CKC3IRK6YTX3B36G3YIAAFB/state.json","well_known_bundle":"https://pith.science/.well-known/pith/JD2CKC3IRK6YTX3B36G3YIAAFB/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2012:JD2CKC3IRK6YTX3B36G3YIAAFB","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":"52134696047c3e5331620b1716ec26d32a6cc8c4165d15fc887b462d56d4320b","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2012-12-19T12:24:04Z","title_canon_sha256":"fc5a7cff9e051391a2d7fb0cb04ec900a47f51da95ab735f9834dae56b779d55"},"schema_version":"1.0","source":{"id":"1212.4636","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1212.4636","created_at":"2026-05-18T03:29:29Z"},{"alias_kind":"arxiv_version","alias_value":"1212.4636v2","created_at":"2026-05-18T03:29:29Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1212.4636","created_at":"2026-05-18T03:29:29Z"},{"alias_kind":"pith_short_12","alias_value":"JD2CKC3IRK6Y","created_at":"2026-05-18T12:27:11Z"},{"alias_kind":"pith_short_16","alias_value":"JD2CKC3IRK6YTX3B","created_at":"2026-05-18T12:27:11Z"},{"alias_kind":"pith_short_8","alias_value":"JD2CKC3I","created_at":"2026-05-18T12:27:11Z"}],"graph_snapshots":[{"event_id":"sha256:b11340e237b0b1df4bc396a2c099a5ee02c9b1ea57d18c30e670e87abce5c1f0","target":"graph","created_at":"2026-05-18T03:29:29Z","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":"We investigate the behavior of the periodic Anderson model in the presence of $d$-$f$ Coulomb interaction ($U_{df}$) using mean-field theory, variational calculation, and exact diagonalization of finite chains. The variational approach based on the Gutzwiller trial wave function gives a critical value of $U_{df}$ and two quantum critical points (QCPs), where the valence susceptibility diverges. We derive the critical exponent for the valence susceptibility and investigate how the position of the QCP depends on the other parameters of the Hamiltonian. For larger values of $U_{df}$, the Kondo re","authors_text":"I. Hagymasi, J. Solyom, K. Itai","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2012-12-19T12:24:04Z","title":"Quantum criticality and first-order transitions in the extended periodic Anderson model"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1212.4636","kind":"arxiv","version":2},"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":"sha256:24e35e9420318533434eecce7e05b190b7f7e8fcd66bb06923bf8f930be3f980","target":"record","created_at":"2026-05-18T03:29:29Z","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":"52134696047c3e5331620b1716ec26d32a6cc8c4165d15fc887b462d56d4320b","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2012-12-19T12:24:04Z","title_canon_sha256":"fc5a7cff9e051391a2d7fb0cb04ec900a47f51da95ab735f9834dae56b779d55"},"schema_version":"1.0","source":{"id":"1212.4636","kind":"arxiv","version":2}},"canonical_sha256":"48f4250b688abd89df61df8dbc200028450b978860434de888010959a417eebc","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"48f4250b688abd89df61df8dbc200028450b978860434de888010959a417eebc","first_computed_at":"2026-05-18T03:29:29.427549Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T03:29:29.427549Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"SHuv79Rl6l/z6nMPTKhM7fHJXxqXA8+5ef+kGxaVT/5oVo3vRgjUENKVw91TAZ5EhMBkRZeynny4yOr4VgvLDA==","signature_status":"signed_v1","signed_at":"2026-05-18T03:29:29.428295Z","signed_message":"canonical_sha256_bytes"},"source_id":"1212.4636","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:24e35e9420318533434eecce7e05b190b7f7e8fcd66bb06923bf8f930be3f980","sha256:b11340e237b0b1df4bc396a2c099a5ee02c9b1ea57d18c30e670e87abce5c1f0"],"state_sha256":"d3646f9588faa3178ae97fc657618a8ce4fb50919f5384cce85994185ee60ccb"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"gVADpPQkF3zAFsXKeHNGEanN+0c6kQhIWT49tSC80KkrB9je/knX6vMntts6ynHt0n7Sieqc17S3LeaGGklqAw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-31T08:36:57.105234Z","bundle_sha256":"d8722d95f219661881c052a58fbf3eca069f09cb0729eb717b8c3716effc5ee2"}}