{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2012:7V2C2P5KJE743CSNXBGVRY4LPW","short_pith_number":"pith:7V2C2P5K","canonical_record":{"source":{"id":"1205.0511","kind":"arxiv","version":3},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2012-05-02T18:13:22Z","cross_cats_sorted":[],"title_canon_sha256":"9679e368cba5a1b4b782fc95083173f81171434aa2ed827657efeb67b93b76c2","abstract_canon_sha256":"c4be15be3c186647e8f986c457e6ac4cc8ad002490c00c1f749726627a0b7f5f"},"schema_version":"1.0"},"canonical_sha256":"fd742d3faa493fcd8a4db84d58e38b7dab31177ccd21e327fc8f4a5bb7baf0ee","source":{"kind":"arxiv","id":"1205.0511","version":3},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1205.0511","created_at":"2026-05-18T03:36:56Z"},{"alias_kind":"arxiv_version","alias_value":"1205.0511v3","created_at":"2026-05-18T03:36:56Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1205.0511","created_at":"2026-05-18T03:36:56Z"},{"alias_kind":"pith_short_12","alias_value":"7V2C2P5KJE74","created_at":"2026-05-18T12:26:58Z"},{"alias_kind":"pith_short_16","alias_value":"7V2C2P5KJE743CSN","created_at":"2026-05-18T12:26:58Z"},{"alias_kind":"pith_short_8","alias_value":"7V2C2P5K","created_at":"2026-05-18T12:26:58Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2012:7V2C2P5KJE743CSNXBGVRY4LPW","target":"record","payload":{"canonical_record":{"source":{"id":"1205.0511","kind":"arxiv","version":3},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2012-05-02T18:13:22Z","cross_cats_sorted":[],"title_canon_sha256":"9679e368cba5a1b4b782fc95083173f81171434aa2ed827657efeb67b93b76c2","abstract_canon_sha256":"c4be15be3c186647e8f986c457e6ac4cc8ad002490c00c1f749726627a0b7f5f"},"schema_version":"1.0"},"canonical_sha256":"fd742d3faa493fcd8a4db84d58e38b7dab31177ccd21e327fc8f4a5bb7baf0ee","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T03:36:56.634911Z","signature_b64":"T+1IQhp9bnPK1LVuKJy2qYXc1+rEkvUoCBOoPH6pNjncl0M4Skm5ewa4uHgTB40haxG225cVFzeCIrcZ35E6BA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"fd742d3faa493fcd8a4db84d58e38b7dab31177ccd21e327fc8f4a5bb7baf0ee","last_reissued_at":"2026-05-18T03:36:56.634349Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T03:36:56.634349Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1205.0511","source_version":3,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T03:36:56Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"jSjbby2OyUFRqMwBePf4l+Kj8144ao3GdO1gsijaltiVsaZaj92nU1GHOv8b2TPk9+vkGhpWOacixRIh2gk3Cw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-26T17:42:05.733808Z"},"content_sha256":"054f6e907bb0a8232c1a15f2da271e9bedf65d2f8616b6da332962f5f1a79047","schema_version":"1.0","event_id":"sha256:054f6e907bb0a8232c1a15f2da271e9bedf65d2f8616b6da332962f5f1a79047"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2012:7V2C2P5KJE743CSNXBGVRY4LPW","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Orbital polaron in double exchange ferromagnets","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.str-el","authors_text":"P. Lombardo, R. Hayn, R. O. Kuzian, T. L. van den Berg","submitted_at":"2012-05-02T18:13:22Z","abstract_excerpt":"We investigate the spectral properties of the two-orbital Hubbard model, including the double hopping term, by means of the dynamical mean field method. This Hamiltonian describes materials in which ferromagnetism is realized by the double exchange mechanism, like for instance manganites, nickelates or diluted magnetic semiconductors. The spectral function of the unoccupied states is characterized by a specific equidistant three peak structure. We emphasize the importance of the double hopping term on the spectral properties. We show the existence of a ferromagnetic phase due to electron dopin"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1205.0511","kind":"arxiv","version":3},"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":"2026-05-18T03:36:56Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"z0vO6uukJjadeezf4X5kgGWvGP1sGGEwHOjqaI3eBAdgM5yJztYdFZ0f6BlS4AW1YcA1S135HApfJ0dMHDvOCg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-26T17:42:05.734495Z"},"content_sha256":"070fb048302d0630524381ff1b0ee0d86a46089fce6dfc6ecc009c0aad354913","schema_version":"1.0","event_id":"sha256:070fb048302d0630524381ff1b0ee0d86a46089fce6dfc6ecc009c0aad354913"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/7V2C2P5KJE743CSNXBGVRY4LPW/bundle.json","state_url":"https://pith.science/pith/7V2C2P5KJE743CSNXBGVRY4LPW/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/7V2C2P5KJE743CSNXBGVRY4LPW/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":"2026-05-26T17:42:05Z","links":{"resolver":"https://pith.science/pith/7V2C2P5KJE743CSNXBGVRY4LPW","bundle":"https://pith.science/pith/7V2C2P5KJE743CSNXBGVRY4LPW/bundle.json","state":"https://pith.science/pith/7V2C2P5KJE743CSNXBGVRY4LPW/state.json","well_known_bundle":"https://pith.science/.well-known/pith/7V2C2P5KJE743CSNXBGVRY4LPW/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2012:7V2C2P5KJE743CSNXBGVRY4LPW","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":"c4be15be3c186647e8f986c457e6ac4cc8ad002490c00c1f749726627a0b7f5f","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2012-05-02T18:13:22Z","title_canon_sha256":"9679e368cba5a1b4b782fc95083173f81171434aa2ed827657efeb67b93b76c2"},"schema_version":"1.0","source":{"id":"1205.0511","kind":"arxiv","version":3}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1205.0511","created_at":"2026-05-18T03:36:56Z"},{"alias_kind":"arxiv_version","alias_value":"1205.0511v3","created_at":"2026-05-18T03:36:56Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1205.0511","created_at":"2026-05-18T03:36:56Z"},{"alias_kind":"pith_short_12","alias_value":"7V2C2P5KJE74","created_at":"2026-05-18T12:26:58Z"},{"alias_kind":"pith_short_16","alias_value":"7V2C2P5KJE743CSN","created_at":"2026-05-18T12:26:58Z"},{"alias_kind":"pith_short_8","alias_value":"7V2C2P5K","created_at":"2026-05-18T12:26:58Z"}],"graph_snapshots":[{"event_id":"sha256:070fb048302d0630524381ff1b0ee0d86a46089fce6dfc6ecc009c0aad354913","target":"graph","created_at":"2026-05-18T03:36:56Z","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":"We investigate the spectral properties of the two-orbital Hubbard model, including the double hopping term, by means of the dynamical mean field method. This Hamiltonian describes materials in which ferromagnetism is realized by the double exchange mechanism, like for instance manganites, nickelates or diluted magnetic semiconductors. The spectral function of the unoccupied states is characterized by a specific equidistant three peak structure. We emphasize the importance of the double hopping term on the spectral properties. We show the existence of a ferromagnetic phase due to electron dopin","authors_text":"P. Lombardo, R. Hayn, R. O. Kuzian, T. L. van den Berg","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2012-05-02T18:13:22Z","title":"Orbital polaron in double exchange ferromagnets"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1205.0511","kind":"arxiv","version":3},"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":"sha256:054f6e907bb0a8232c1a15f2da271e9bedf65d2f8616b6da332962f5f1a79047","target":"record","created_at":"2026-05-18T03:36:56Z","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":"c4be15be3c186647e8f986c457e6ac4cc8ad002490c00c1f749726627a0b7f5f","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2012-05-02T18:13:22Z","title_canon_sha256":"9679e368cba5a1b4b782fc95083173f81171434aa2ed827657efeb67b93b76c2"},"schema_version":"1.0","source":{"id":"1205.0511","kind":"arxiv","version":3}},"canonical_sha256":"fd742d3faa493fcd8a4db84d58e38b7dab31177ccd21e327fc8f4a5bb7baf0ee","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"fd742d3faa493fcd8a4db84d58e38b7dab31177ccd21e327fc8f4a5bb7baf0ee","first_computed_at":"2026-05-18T03:36:56.634349Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T03:36:56.634349Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"T+1IQhp9bnPK1LVuKJy2qYXc1+rEkvUoCBOoPH6pNjncl0M4Skm5ewa4uHgTB40haxG225cVFzeCIrcZ35E6BA==","signature_status":"signed_v1","signed_at":"2026-05-18T03:36:56.634911Z","signed_message":"canonical_sha256_bytes"},"source_id":"1205.0511","source_kind":"arxiv","source_version":3}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:054f6e907bb0a8232c1a15f2da271e9bedf65d2f8616b6da332962f5f1a79047","sha256:070fb048302d0630524381ff1b0ee0d86a46089fce6dfc6ecc009c0aad354913"],"state_sha256":"c2cad19daddd3bfcb341a185d055ef91d7035f65b6b523974bb0f92ab7187bee"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"5etUKdObh1BiEFD0zDOyKc4KuYk1+YDJlLlZkmTfOtab4uInD0gxoAQ9ZjOf0knwsFhWo1ivGtnLGIRVbo6bCg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-26T17:42:05.737881Z","bundle_sha256":"a317d9ef47d3ce62ed336034dd18852b06104c657085f1196edee56eb20d162a"}}