{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2013:4MMUNBTV62VNI6ZCUIPR2JKWNV","short_pith_number":"pith:4MMUNBTV","canonical_record":{"source":{"id":"1310.8586","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2013-10-31T16:45:23Z","cross_cats_sorted":["cond-mat.stat-mech"],"title_canon_sha256":"0277793f81717671cffb500b35b2ea6c3641e5135b2356bf2e625039309459c6","abstract_canon_sha256":"434f5a0e14aa281e99b0909007e09c1a080f9b1408930ef7dab5ea7ed2db5418"},"schema_version":"1.0"},"canonical_sha256":"e319468675f6aad47b22a21f1d25566d72d5b7bcfe118898a4fc6dcd41f4d075","source":{"kind":"arxiv","id":"1310.8586","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1310.8586","created_at":"2026-05-18T02:58:56Z"},{"alias_kind":"arxiv_version","alias_value":"1310.8586v2","created_at":"2026-05-18T02:58:56Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1310.8586","created_at":"2026-05-18T02:58:56Z"},{"alias_kind":"pith_short_12","alias_value":"4MMUNBTV62VN","created_at":"2026-05-18T12:27:34Z"},{"alias_kind":"pith_short_16","alias_value":"4MMUNBTV62VNI6ZC","created_at":"2026-05-18T12:27:34Z"},{"alias_kind":"pith_short_8","alias_value":"4MMUNBTV","created_at":"2026-05-18T12:27:34Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2013:4MMUNBTV62VNI6ZCUIPR2JKWNV","target":"record","payload":{"canonical_record":{"source":{"id":"1310.8586","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2013-10-31T16:45:23Z","cross_cats_sorted":["cond-mat.stat-mech"],"title_canon_sha256":"0277793f81717671cffb500b35b2ea6c3641e5135b2356bf2e625039309459c6","abstract_canon_sha256":"434f5a0e14aa281e99b0909007e09c1a080f9b1408930ef7dab5ea7ed2db5418"},"schema_version":"1.0"},"canonical_sha256":"e319468675f6aad47b22a21f1d25566d72d5b7bcfe118898a4fc6dcd41f4d075","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:58:56.618988Z","signature_b64":"S/imq8gla8eJ6YEmBcscf974NRRZrO1LmwEoWusoLq6KwYjJ7lstqasTm6c3kn5XYAU9aAZHuPvtjFAllH9GCw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"e319468675f6aad47b22a21f1d25566d72d5b7bcfe118898a4fc6dcd41f4d075","last_reissued_at":"2026-05-18T02:58:56.618477Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:58:56.618477Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1310.8586","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":"2026-05-18T02:58:56Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"iYG9zG+qIJjHavcz/gp7x4MBgm3tpZ1pv43EJ5lcCJ+PzEwmO4NjS2ETbVXPG0XZJMLPbkiAmtEixaOlk0MwCg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-10T21:14:41.291043Z"},"content_sha256":"763bdb34bb2873bd1ecfa55b6cc19b1f0e61561365dd9bbf7def0d4a1299a199","schema_version":"1.0","event_id":"sha256:763bdb34bb2873bd1ecfa55b6cc19b1f0e61561365dd9bbf7def0d4a1299a199"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2013:4MMUNBTV62VNI6ZCUIPR2JKWNV","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Ground-State Phase Diagram of S=2 Heisenberg Chains with Alternating Single-Site Anisotropy","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cond-mat.stat-mech"],"primary_cat":"cond-mat.str-el","authors_text":"Kazuo Hida","submitted_at":"2013-10-31T16:45:23Z","abstract_excerpt":"The ground-state phase diagram of $S=2$ antiferromagnetic Heisenberg chains with coexisting uniform and alternating single-site anisotropies is investigated by the numerical exact diagonalization and density matrix renormalization group methods. We find the Haldane, large-$D$, N\\'eel, period-doubled N\\'eel, gapless spin fluid, quantized and partial ferrimagnetic phases. The Haldane phase is limited to the close neighborhood of the isotropic point. Within numerical accuracy, the transition from the gapless spin-fluid phase to the period-doubled N\\'eel phase is a direct transition. Nevertheless,"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1310.8586","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":"2026-05-18T02:58:56Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"uIby6M8idJA/hgTn5nEcREFbJrPCShcWXdJWimjflzh3dJnCejznsADRo2DOfeAcz0mU9BgqocBB7Aa2G08TAg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-10T21:14:41.291408Z"},"content_sha256":"929435bba91f86aed40afbc9980d8cc04705ab0b6dedaf6be390a5e3cd4f0b3c","schema_version":"1.0","event_id":"sha256:929435bba91f86aed40afbc9980d8cc04705ab0b6dedaf6be390a5e3cd4f0b3c"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/4MMUNBTV62VNI6ZCUIPR2JKWNV/bundle.json","state_url":"https://pith.science/pith/4MMUNBTV62VNI6ZCUIPR2JKWNV/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/4MMUNBTV62VNI6ZCUIPR2JKWNV/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":"2026-06-10T21:14:41Z","links":{"resolver":"https://pith.science/pith/4MMUNBTV62VNI6ZCUIPR2JKWNV","bundle":"https://pith.science/pith/4MMUNBTV62VNI6ZCUIPR2JKWNV/bundle.json","state":"https://pith.science/pith/4MMUNBTV62VNI6ZCUIPR2JKWNV/state.json","well_known_bundle":"https://pith.science/.well-known/pith/4MMUNBTV62VNI6ZCUIPR2JKWNV/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2013:4MMUNBTV62VNI6ZCUIPR2JKWNV","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":"434f5a0e14aa281e99b0909007e09c1a080f9b1408930ef7dab5ea7ed2db5418","cross_cats_sorted":["cond-mat.stat-mech"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2013-10-31T16:45:23Z","title_canon_sha256":"0277793f81717671cffb500b35b2ea6c3641e5135b2356bf2e625039309459c6"},"schema_version":"1.0","source":{"id":"1310.8586","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1310.8586","created_at":"2026-05-18T02:58:56Z"},{"alias_kind":"arxiv_version","alias_value":"1310.8586v2","created_at":"2026-05-18T02:58:56Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1310.8586","created_at":"2026-05-18T02:58:56Z"},{"alias_kind":"pith_short_12","alias_value":"4MMUNBTV62VN","created_at":"2026-05-18T12:27:34Z"},{"alias_kind":"pith_short_16","alias_value":"4MMUNBTV62VNI6ZC","created_at":"2026-05-18T12:27:34Z"},{"alias_kind":"pith_short_8","alias_value":"4MMUNBTV","created_at":"2026-05-18T12:27:34Z"}],"graph_snapshots":[{"event_id":"sha256:929435bba91f86aed40afbc9980d8cc04705ab0b6dedaf6be390a5e3cd4f0b3c","target":"graph","created_at":"2026-05-18T02:58:56Z","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":"The ground-state phase diagram of $S=2$ antiferromagnetic Heisenberg chains with coexisting uniform and alternating single-site anisotropies is investigated by the numerical exact diagonalization and density matrix renormalization group methods. We find the Haldane, large-$D$, N\\'eel, period-doubled N\\'eel, gapless spin fluid, quantized and partial ferrimagnetic phases. The Haldane phase is limited to the close neighborhood of the isotropic point. Within numerical accuracy, the transition from the gapless spin-fluid phase to the period-doubled N\\'eel phase is a direct transition. Nevertheless,","authors_text":"Kazuo Hida","cross_cats":["cond-mat.stat-mech"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2013-10-31T16:45:23Z","title":"Ground-State Phase Diagram of S=2 Heisenberg Chains with Alternating Single-Site Anisotropy"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1310.8586","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":"sha256:763bdb34bb2873bd1ecfa55b6cc19b1f0e61561365dd9bbf7def0d4a1299a199","target":"record","created_at":"2026-05-18T02:58:56Z","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":"434f5a0e14aa281e99b0909007e09c1a080f9b1408930ef7dab5ea7ed2db5418","cross_cats_sorted":["cond-mat.stat-mech"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2013-10-31T16:45:23Z","title_canon_sha256":"0277793f81717671cffb500b35b2ea6c3641e5135b2356bf2e625039309459c6"},"schema_version":"1.0","source":{"id":"1310.8586","kind":"arxiv","version":2}},"canonical_sha256":"e319468675f6aad47b22a21f1d25566d72d5b7bcfe118898a4fc6dcd41f4d075","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"e319468675f6aad47b22a21f1d25566d72d5b7bcfe118898a4fc6dcd41f4d075","first_computed_at":"2026-05-18T02:58:56.618477Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:58:56.618477Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"S/imq8gla8eJ6YEmBcscf974NRRZrO1LmwEoWusoLq6KwYjJ7lstqasTm6c3kn5XYAU9aAZHuPvtjFAllH9GCw==","signature_status":"signed_v1","signed_at":"2026-05-18T02:58:56.618988Z","signed_message":"canonical_sha256_bytes"},"source_id":"1310.8586","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:763bdb34bb2873bd1ecfa55b6cc19b1f0e61561365dd9bbf7def0d4a1299a199","sha256:929435bba91f86aed40afbc9980d8cc04705ab0b6dedaf6be390a5e3cd4f0b3c"],"state_sha256":"f968169aac9feede2f123d8d58b5ba2548eba7b98a1a37552837e65b3a072937"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"MAG6YicKj53/YcY8/cyHyG5Djos7bKtYyWOgBbJOdHadmWGqlJFy1V6VfcAndgA3kYoVdOP6ra73t1wfxNqsDw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-10T21:14:41.293578Z","bundle_sha256":"1bd4fd8c95ae34d73d9648e5909365e197d8008cbe6ea2745c7ffe7c840a4a0c"}}