{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2015:MYIWBNSMMMXKDQJ2BRUO5EYQOX","short_pith_number":"pith:MYIWBNSM","canonical_record":{"source":{"id":"1509.01639","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2015-09-04T23:38:09Z","cross_cats_sorted":[],"title_canon_sha256":"320053cd6781fef578814935ada987fe0fd844a58e95a87462692ab42aebf6bb","abstract_canon_sha256":"665f5b7df7a2bfea0929ef4afb73c3e886e620cbce35929b9e0bf1d16f846a5b"},"schema_version":"1.0"},"canonical_sha256":"661160b64c632ea1c13a0c68ee931075c2ebabb80f8fb0085ea1ca15295f2192","source":{"kind":"arxiv","id":"1509.01639","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1509.01639","created_at":"2026-05-18T01:20:34Z"},{"alias_kind":"arxiv_version","alias_value":"1509.01639v1","created_at":"2026-05-18T01:20:34Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1509.01639","created_at":"2026-05-18T01:20:34Z"},{"alias_kind":"pith_short_12","alias_value":"MYIWBNSMMMXK","created_at":"2026-05-18T12:29:32Z"},{"alias_kind":"pith_short_16","alias_value":"MYIWBNSMMMXKDQJ2","created_at":"2026-05-18T12:29:32Z"},{"alias_kind":"pith_short_8","alias_value":"MYIWBNSM","created_at":"2026-05-18T12:29:32Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2015:MYIWBNSMMMXKDQJ2BRUO5EYQOX","target":"record","payload":{"canonical_record":{"source":{"id":"1509.01639","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2015-09-04T23:38:09Z","cross_cats_sorted":[],"title_canon_sha256":"320053cd6781fef578814935ada987fe0fd844a58e95a87462692ab42aebf6bb","abstract_canon_sha256":"665f5b7df7a2bfea0929ef4afb73c3e886e620cbce35929b9e0bf1d16f846a5b"},"schema_version":"1.0"},"canonical_sha256":"661160b64c632ea1c13a0c68ee931075c2ebabb80f8fb0085ea1ca15295f2192","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:20:34.332795Z","signature_b64":"yKI0/dnLADLzwd6hwAWq4v0ekfoakxs9fEzXufNfI7s+ZJ0bn082YTWmwOhynycsUUb5z5ZU6JnH1mHY6jbtAw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"661160b64c632ea1c13a0c68ee931075c2ebabb80f8fb0085ea1ca15295f2192","last_reissued_at":"2026-05-18T01:20:34.332037Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:20:34.332037Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1509.01639","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":"2026-05-18T01:20:34Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"YlhpT5OrwhO5kAFsg7wdnTYis6UPnZnAUbPrHVfqKNz7CJfRc2dSOw4QUCO7/xzfDW9M7SL4tXFgHMACvNRqAQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-28T19:13:52.811662Z"},"content_sha256":"e824bd495bec10ac083a2eea50fd3bce50d25a8cf3c48e7d21256868703895ed","schema_version":"1.0","event_id":"sha256:e824bd495bec10ac083a2eea50fd3bce50d25a8cf3c48e7d21256868703895ed"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2015:MYIWBNSMMMXKDQJ2BRUO5EYQOX","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Spin frustration and fermionic entanglement in an exactly solved hybrid diamond chain with the localized Ising spins and mobile electrons","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.str-el","authors_text":"J. Strecka, J. Torrico, M. L. Lyra, M. Rojas, M. S. S. Pereira","submitted_at":"2015-09-04T23:38:09Z","abstract_excerpt":"The strongly correlated spin-electron system on a diamond chain containing localized Ising spins on its nodal lattice sites and mobile electrons on its interstitial sites is exactly solved in a magnetic field using the transfer-matrix method. We have investigated in detail all available ground states, the magnetization processes, the spin-spin correlation functions around an elementary plaquette, fermionic quantum concurrence and spin frustration. It is shown that the fermionic entanglement between mobile electrons hopping on interstitial sites and the kinetically-induced spin frustration are "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1509.01639","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":"2026-05-18T01:20:34Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"xQp4jOws3E8EjEMGvrvcXpde8+mkS4EIlEKmREzR+dnztQNrrgegeb6m4te9n5LPeDiUmeTVF2khDRgWgWxtAg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-28T19:13:52.812015Z"},"content_sha256":"b082679323c7a915212d0bf72935587d38ab0766066973944093b2a017ad8b78","schema_version":"1.0","event_id":"sha256:b082679323c7a915212d0bf72935587d38ab0766066973944093b2a017ad8b78"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/MYIWBNSMMMXKDQJ2BRUO5EYQOX/bundle.json","state_url":"https://pith.science/pith/MYIWBNSMMMXKDQJ2BRUO5EYQOX/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/MYIWBNSMMMXKDQJ2BRUO5EYQOX/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":"2026-05-28T19:13:52Z","links":{"resolver":"https://pith.science/pith/MYIWBNSMMMXKDQJ2BRUO5EYQOX","bundle":"https://pith.science/pith/MYIWBNSMMMXKDQJ2BRUO5EYQOX/bundle.json","state":"https://pith.science/pith/MYIWBNSMMMXKDQJ2BRUO5EYQOX/state.json","well_known_bundle":"https://pith.science/.well-known/pith/MYIWBNSMMMXKDQJ2BRUO5EYQOX/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2015:MYIWBNSMMMXKDQJ2BRUO5EYQOX","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":"665f5b7df7a2bfea0929ef4afb73c3e886e620cbce35929b9e0bf1d16f846a5b","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2015-09-04T23:38:09Z","title_canon_sha256":"320053cd6781fef578814935ada987fe0fd844a58e95a87462692ab42aebf6bb"},"schema_version":"1.0","source":{"id":"1509.01639","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1509.01639","created_at":"2026-05-18T01:20:34Z"},{"alias_kind":"arxiv_version","alias_value":"1509.01639v1","created_at":"2026-05-18T01:20:34Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1509.01639","created_at":"2026-05-18T01:20:34Z"},{"alias_kind":"pith_short_12","alias_value":"MYIWBNSMMMXK","created_at":"2026-05-18T12:29:32Z"},{"alias_kind":"pith_short_16","alias_value":"MYIWBNSMMMXKDQJ2","created_at":"2026-05-18T12:29:32Z"},{"alias_kind":"pith_short_8","alias_value":"MYIWBNSM","created_at":"2026-05-18T12:29:32Z"}],"graph_snapshots":[{"event_id":"sha256:b082679323c7a915212d0bf72935587d38ab0766066973944093b2a017ad8b78","target":"graph","created_at":"2026-05-18T01:20:34Z","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":"The strongly correlated spin-electron system on a diamond chain containing localized Ising spins on its nodal lattice sites and mobile electrons on its interstitial sites is exactly solved in a magnetic field using the transfer-matrix method. We have investigated in detail all available ground states, the magnetization processes, the spin-spin correlation functions around an elementary plaquette, fermionic quantum concurrence and spin frustration. It is shown that the fermionic entanglement between mobile electrons hopping on interstitial sites and the kinetically-induced spin frustration are ","authors_text":"J. Strecka, J. Torrico, M. L. Lyra, M. Rojas, M. S. S. Pereira","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2015-09-04T23:38:09Z","title":"Spin frustration and fermionic entanglement in an exactly solved hybrid diamond chain with the localized Ising spins and mobile electrons"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1509.01639","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:e824bd495bec10ac083a2eea50fd3bce50d25a8cf3c48e7d21256868703895ed","target":"record","created_at":"2026-05-18T01:20:34Z","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":"665f5b7df7a2bfea0929ef4afb73c3e886e620cbce35929b9e0bf1d16f846a5b","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2015-09-04T23:38:09Z","title_canon_sha256":"320053cd6781fef578814935ada987fe0fd844a58e95a87462692ab42aebf6bb"},"schema_version":"1.0","source":{"id":"1509.01639","kind":"arxiv","version":1}},"canonical_sha256":"661160b64c632ea1c13a0c68ee931075c2ebabb80f8fb0085ea1ca15295f2192","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"661160b64c632ea1c13a0c68ee931075c2ebabb80f8fb0085ea1ca15295f2192","first_computed_at":"2026-05-18T01:20:34.332037Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:20:34.332037Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"yKI0/dnLADLzwd6hwAWq4v0ekfoakxs9fEzXufNfI7s+ZJ0bn082YTWmwOhynycsUUb5z5ZU6JnH1mHY6jbtAw==","signature_status":"signed_v1","signed_at":"2026-05-18T01:20:34.332795Z","signed_message":"canonical_sha256_bytes"},"source_id":"1509.01639","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:e824bd495bec10ac083a2eea50fd3bce50d25a8cf3c48e7d21256868703895ed","sha256:b082679323c7a915212d0bf72935587d38ab0766066973944093b2a017ad8b78"],"state_sha256":"f63d7d3161a4c6d9e4750d90608bf98be4ab0fe0e8c09fa3ca25a63363e924a1"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"hUoVdPsbcnTs4V77wuqCNrZL/FJrZYcl94+HRS21PTn0dZHJ6Q1omIh7aHYtnoukBtsZ8ODOR0g/DlmGnCaOAQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-28T19:13:52.814026Z","bundle_sha256":"06acaa9dc499e3a852c5e307564fd9397e759740b47659424c5b698b52763374"}}