{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2025:DTLAZCF47AM3ND5FV6VG5IL6JX","short_pith_number":"pith:DTLAZCF4","canonical_record":{"source":{"id":"2510.12880","kind":"arxiv","version":2},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cond-mat.str-el","submitted_at":"2025-10-14T18:00:07Z","cross_cats_sorted":[],"title_canon_sha256":"50e9c932e1dab34b3a0d0c140d6a57134414f76d11216bcf7c9513b94069ea66","abstract_canon_sha256":"97531f919704b142f8536266caef0aae04d934a897f82dda6b50cd94e86da822"},"schema_version":"1.0"},"canonical_sha256":"1cd60c88bcf819b68fa5afaa6ea17e4dfe9d7469d5ffad4a0e10ac87fa61a9fa","source":{"kind":"arxiv","id":"2510.12880","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2510.12880","created_at":"2026-07-31T01:08:51Z"},{"alias_kind":"arxiv_version","alias_value":"2510.12880v2","created_at":"2026-07-31T01:08:51Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2510.12880","created_at":"2026-07-31T01:08:51Z"},{"alias_kind":"pith_short_12","alias_value":"DTLAZCF47AM3","created_at":"2026-07-31T01:08:51Z"},{"alias_kind":"pith_short_16","alias_value":"DTLAZCF47AM3ND5F","created_at":"2026-07-31T01:08:51Z"},{"alias_kind":"pith_short_8","alias_value":"DTLAZCF4","created_at":"2026-07-31T01:08:51Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2025:DTLAZCF47AM3ND5FV6VG5IL6JX","target":"record","payload":{"canonical_record":{"source":{"id":"2510.12880","kind":"arxiv","version":2},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cond-mat.str-el","submitted_at":"2025-10-14T18:00:07Z","cross_cats_sorted":[],"title_canon_sha256":"50e9c932e1dab34b3a0d0c140d6a57134414f76d11216bcf7c9513b94069ea66","abstract_canon_sha256":"97531f919704b142f8536266caef0aae04d934a897f82dda6b50cd94e86da822"},"schema_version":"1.0"},"canonical_sha256":"1cd60c88bcf819b68fa5afaa6ea17e4dfe9d7469d5ffad4a0e10ac87fa61a9fa","receipt":{"kind":"pith_receipt","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"1cd60c88bcf819b68fa5afaa6ea17e4dfe9d7469d5ffad4a0e10ac87fa61a9fa","last_reissued_at":"2026-07-31T01:08:51.858126Z","signature_status":"unsigned_v0","first_computed_at":"2026-07-31T01:08:51.858126Z"},"source_kind":"arxiv","source_id":"2510.12880","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":"2026-07-31T01:08:51Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"lpjfa4jeAVtjMjxaUwEXzlVW1mPz1bl7uHlGk/0zP3z45kXVRlUrsHkSXlKSLrHYIsiPmmICJzT3YuM9gTxAAQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-05T17:04:01.183070Z"},"content_sha256":"6aa8f5a4acdd0d3db0d81fbd9b4b058deac45b5244b081e2d42a72a57685affb","schema_version":"1.0","event_id":"sha256:6aa8f5a4acdd0d3db0d81fbd9b4b058deac45b5244b081e2d42a72a57685affb"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2025:DTLAZCF47AM3ND5FV6VG5IL6JX","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Exact Fractionalized Ground States in an Extended Spin-1 Kitaev Chain","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.str-el","authors_text":"Alwyn Jose Raja, R. Ganesh","submitted_at":"2025-10-14T18:00:07Z","abstract_excerpt":"Inspired by the Affleck-Kennedy-Lieb-Tasaki (AKLT) model, we present exact solutions for a spin-1 chain with Kitaev-like couplings. We consider an expanded Kitaev model with bilinear and biquadratic terms. At an exactly solvable point, the Hamiltonian can be reexpressed as a sum of projection operators. Unlike the AKLT model where projectors act on total spin, we project onto components of spin along the bond direction. This leads to exponential ground state degeneracy, expressed in terms of fractionalized spin-$\\frac{1}{2}$ objects. Each ground state can be expressed concisely as a matrix pro"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2510.12880","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2510.12880/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":"2026-07-31T01:08:51Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"L1fjP5FQsMTJ9OHYRlXMSq1gImRu0XUnkV8G0OfEjmfpZ9+y9vzDJwcCUEgpPWffqt7gvokoZdclAIZG9yxTAA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-05T17:04:01.183785Z"},"content_sha256":"8d5a8bdc99139921e0c352204020023abe8b7d4c2a865ee4f2a3a2bddfa182d5","schema_version":"1.0","event_id":"sha256:8d5a8bdc99139921e0c352204020023abe8b7d4c2a865ee4f2a3a2bddfa182d5"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/DTLAZCF47AM3ND5FV6VG5IL6JX/bundle.json","state_url":"https://pith.science/pith/DTLAZCF47AM3ND5FV6VG5IL6JX/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/DTLAZCF47AM3ND5FV6VG5IL6JX/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":"2026-08-05T17:04:01Z","links":{"resolver":"https://pith.science/pith/DTLAZCF47AM3ND5FV6VG5IL6JX","bundle":"https://pith.science/pith/DTLAZCF47AM3ND5FV6VG5IL6JX/bundle.json","state":"https://pith.science/pith/DTLAZCF47AM3ND5FV6VG5IL6JX/state.json","well_known_bundle":"https://pith.science/.well-known/pith/DTLAZCF47AM3ND5FV6VG5IL6JX/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2025:DTLAZCF47AM3ND5FV6VG5IL6JX","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":"97531f919704b142f8536266caef0aae04d934a897f82dda6b50cd94e86da822","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cond-mat.str-el","submitted_at":"2025-10-14T18:00:07Z","title_canon_sha256":"50e9c932e1dab34b3a0d0c140d6a57134414f76d11216bcf7c9513b94069ea66"},"schema_version":"1.0","source":{"id":"2510.12880","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2510.12880","created_at":"2026-07-31T01:08:51Z"},{"alias_kind":"arxiv_version","alias_value":"2510.12880v2","created_at":"2026-07-31T01:08:51Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2510.12880","created_at":"2026-07-31T01:08:51Z"},{"alias_kind":"pith_short_12","alias_value":"DTLAZCF47AM3","created_at":"2026-07-31T01:08:51Z"},{"alias_kind":"pith_short_16","alias_value":"DTLAZCF47AM3ND5F","created_at":"2026-07-31T01:08:51Z"},{"alias_kind":"pith_short_8","alias_value":"DTLAZCF4","created_at":"2026-07-31T01:08:51Z"}],"graph_snapshots":[{"event_id":"sha256:8d5a8bdc99139921e0c352204020023abe8b7d4c2a865ee4f2a3a2bddfa182d5","target":"graph","created_at":"2026-07-31T01:08:51Z","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/2510.12880/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Inspired by the Affleck-Kennedy-Lieb-Tasaki (AKLT) model, we present exact solutions for a spin-1 chain with Kitaev-like couplings. We consider an expanded Kitaev model with bilinear and biquadratic terms. At an exactly solvable point, the Hamiltonian can be reexpressed as a sum of projection operators. Unlike the AKLT model where projectors act on total spin, we project onto components of spin along the bond direction. This leads to exponential ground state degeneracy, expressed in terms of fractionalized spin-$\\frac{1}{2}$ objects. Each ground state can be expressed concisely as a matrix pro","authors_text":"Alwyn Jose Raja, R. Ganesh","cross_cats":[],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cond-mat.str-el","submitted_at":"2025-10-14T18:00:07Z","title":"Exact Fractionalized Ground States in an Extended Spin-1 Kitaev Chain"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2510.12880","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":"sha256:6aa8f5a4acdd0d3db0d81fbd9b4b058deac45b5244b081e2d42a72a57685affb","target":"record","created_at":"2026-07-31T01:08:51Z","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":"97531f919704b142f8536266caef0aae04d934a897f82dda6b50cd94e86da822","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cond-mat.str-el","submitted_at":"2025-10-14T18:00:07Z","title_canon_sha256":"50e9c932e1dab34b3a0d0c140d6a57134414f76d11216bcf7c9513b94069ea66"},"schema_version":"1.0","source":{"id":"2510.12880","kind":"arxiv","version":2}},"canonical_sha256":"1cd60c88bcf819b68fa5afaa6ea17e4dfe9d7469d5ffad4a0e10ac87fa61a9fa","receipt":{"builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"1cd60c88bcf819b68fa5afaa6ea17e4dfe9d7469d5ffad4a0e10ac87fa61a9fa","first_computed_at":"2026-07-31T01:08:51.858126Z","kind":"pith_receipt","last_reissued_at":"2026-07-31T01:08:51.858126Z","receipt_version":"0.3","signature_status":"unsigned_v0"},"source_id":"2510.12880","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:6aa8f5a4acdd0d3db0d81fbd9b4b058deac45b5244b081e2d42a72a57685affb","sha256:8d5a8bdc99139921e0c352204020023abe8b7d4c2a865ee4f2a3a2bddfa182d5"],"state_sha256":"2f19041eabf415494758996907134cf95fb29ef8ef7c2c46080cf3710d2ee6e2"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"+5AqAiBTo9MUK/8z2gaEO1mH/kkU2e7BrKHG4r1Z/Y3qyEVILNiABPpKkNHCfsNTBKnc2VDbv8vQ5Lj5n8oaDA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-05T17:04:01.188121Z","bundle_sha256":"7563fe7271e164b8636e89297a943bb746ea23024ed66b1684083cf57c6ab35a"}}