{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2012:5MR7WH7LHLTNOCRZ7KW3ZLXXGA","short_pith_number":"pith:5MR7WH7L","canonical_record":{"source":{"id":"1204.3044","kind":"arxiv","version":3},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2012-04-13T16:39:03Z","cross_cats_sorted":[],"title_canon_sha256":"38c68a15af3ad9e68090bdda6d849d5e04ab11a4e3bacac48aa104d1e8d46be7","abstract_canon_sha256":"06ff846aa6b7b06473cc4967bcf603b707275be89bd00aeefd04001bf70e3f80"},"schema_version":"1.0"},"canonical_sha256":"eb23fb1feb3ae6d70a39faadbcaef7301ab2d4135966a48980e55c1be0dd4239","source":{"kind":"arxiv","id":"1204.3044","version":3},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1204.3044","created_at":"2026-05-18T03:41:10Z"},{"alias_kind":"arxiv_version","alias_value":"1204.3044v3","created_at":"2026-05-18T03:41:10Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1204.3044","created_at":"2026-05-18T03:41:10Z"},{"alias_kind":"pith_short_12","alias_value":"5MR7WH7LHLTN","created_at":"2026-05-18T12:26:56Z"},{"alias_kind":"pith_short_16","alias_value":"5MR7WH7LHLTNOCRZ","created_at":"2026-05-18T12:26:56Z"},{"alias_kind":"pith_short_8","alias_value":"5MR7WH7L","created_at":"2026-05-18T12:26:56Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2012:5MR7WH7LHLTNOCRZ7KW3ZLXXGA","target":"record","payload":{"canonical_record":{"source":{"id":"1204.3044","kind":"arxiv","version":3},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2012-04-13T16:39:03Z","cross_cats_sorted":[],"title_canon_sha256":"38c68a15af3ad9e68090bdda6d849d5e04ab11a4e3bacac48aa104d1e8d46be7","abstract_canon_sha256":"06ff846aa6b7b06473cc4967bcf603b707275be89bd00aeefd04001bf70e3f80"},"schema_version":"1.0"},"canonical_sha256":"eb23fb1feb3ae6d70a39faadbcaef7301ab2d4135966a48980e55c1be0dd4239","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T03:41:10.714787Z","signature_b64":"/F3aHbpkWLROF/IPPHhOb6yQHDeY9mH2ILEftPtOk7/BsYVTe9AeLvEiyASqYVvNQLwZXDOwRzSnfEt059qVAw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"eb23fb1feb3ae6d70a39faadbcaef7301ab2d4135966a48980e55c1be0dd4239","last_reissued_at":"2026-05-18T03:41:10.714337Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T03:41:10.714337Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1204.3044","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":"2026-05-18T03:41:10Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"lsx7JqQ9xnqaBQxC3N+SC6N670TsYYiXJcFv7CkknAL8mnIef1q5BIMIQG+YjTlmEMXKrG8jGF3rD0kKzPKXAw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-03T12:07:33.990822Z"},"content_sha256":"9eed4e603d9731b1f9b5d063edc4e1977442e666788a8a2a5baaa1d3ea9aff20","schema_version":"1.0","event_id":"sha256:9eed4e603d9731b1f9b5d063edc4e1977442e666788a8a2a5baaa1d3ea9aff20"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2012:5MR7WH7LHLTNOCRZ7KW3ZLXXGA","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Majorana states in inhomogeneous spin ladders","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.mes-hall","authors_text":"Daniel Loss, Fabio L. Pedrocchi, Stefano Chesi, Suhas Gangadharaiah","submitted_at":"2012-04-13T16:39:03Z","abstract_excerpt":"We propose an inhomogeneous open spin ladder, related to the Kitaev honeycomb model, which can be tuned between topological and nontopological phases. In extension of Lieb's theorem, we show numerically that the ground state of the spin ladder is either vortex free or vortex full. We study the robustness of Majorana end states (MES) which emerge at the boundary between sections in different topological phases and show that while the MES in the homogeneous ladder are destroyed by single-body perturbations, in the presence of inhomogeneities at least two-body perturbations are required to destab"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1204.3044","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":"2026-05-18T03:41:10Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"hobKxt/PGXuL+Mmc/aOgX42QEvKWnPgIaDO7xMwrjoyQCpCVlXGLVnMqI0YoPNKvD6/oMmd5wUFH5Nii+5KXCg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-03T12:07:33.991415Z"},"content_sha256":"bea3249fccce5a8e58c62fb6b6f51647c96d5a67c009c64be7f32adb1ec4bc4b","schema_version":"1.0","event_id":"sha256:bea3249fccce5a8e58c62fb6b6f51647c96d5a67c009c64be7f32adb1ec4bc4b"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/5MR7WH7LHLTNOCRZ7KW3ZLXXGA/bundle.json","state_url":"https://pith.science/pith/5MR7WH7LHLTNOCRZ7KW3ZLXXGA/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/5MR7WH7LHLTNOCRZ7KW3ZLXXGA/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":"2026-06-03T12:07:33Z","links":{"resolver":"https://pith.science/pith/5MR7WH7LHLTNOCRZ7KW3ZLXXGA","bundle":"https://pith.science/pith/5MR7WH7LHLTNOCRZ7KW3ZLXXGA/bundle.json","state":"https://pith.science/pith/5MR7WH7LHLTNOCRZ7KW3ZLXXGA/state.json","well_known_bundle":"https://pith.science/.well-known/pith/5MR7WH7LHLTNOCRZ7KW3ZLXXGA/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2012:5MR7WH7LHLTNOCRZ7KW3ZLXXGA","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":"06ff846aa6b7b06473cc4967bcf603b707275be89bd00aeefd04001bf70e3f80","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2012-04-13T16:39:03Z","title_canon_sha256":"38c68a15af3ad9e68090bdda6d849d5e04ab11a4e3bacac48aa104d1e8d46be7"},"schema_version":"1.0","source":{"id":"1204.3044","kind":"arxiv","version":3}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1204.3044","created_at":"2026-05-18T03:41:10Z"},{"alias_kind":"arxiv_version","alias_value":"1204.3044v3","created_at":"2026-05-18T03:41:10Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1204.3044","created_at":"2026-05-18T03:41:10Z"},{"alias_kind":"pith_short_12","alias_value":"5MR7WH7LHLTN","created_at":"2026-05-18T12:26:56Z"},{"alias_kind":"pith_short_16","alias_value":"5MR7WH7LHLTNOCRZ","created_at":"2026-05-18T12:26:56Z"},{"alias_kind":"pith_short_8","alias_value":"5MR7WH7L","created_at":"2026-05-18T12:26:56Z"}],"graph_snapshots":[{"event_id":"sha256:bea3249fccce5a8e58c62fb6b6f51647c96d5a67c009c64be7f32adb1ec4bc4b","target":"graph","created_at":"2026-05-18T03:41:10Z","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 propose an inhomogeneous open spin ladder, related to the Kitaev honeycomb model, which can be tuned between topological and nontopological phases. In extension of Lieb's theorem, we show numerically that the ground state of the spin ladder is either vortex free or vortex full. We study the robustness of Majorana end states (MES) which emerge at the boundary between sections in different topological phases and show that while the MES in the homogeneous ladder are destroyed by single-body perturbations, in the presence of inhomogeneities at least two-body perturbations are required to destab","authors_text":"Daniel Loss, Fabio L. Pedrocchi, Stefano Chesi, Suhas Gangadharaiah","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2012-04-13T16:39:03Z","title":"Majorana states in inhomogeneous spin ladders"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1204.3044","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":"sha256:9eed4e603d9731b1f9b5d063edc4e1977442e666788a8a2a5baaa1d3ea9aff20","target":"record","created_at":"2026-05-18T03:41:10Z","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":"06ff846aa6b7b06473cc4967bcf603b707275be89bd00aeefd04001bf70e3f80","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2012-04-13T16:39:03Z","title_canon_sha256":"38c68a15af3ad9e68090bdda6d849d5e04ab11a4e3bacac48aa104d1e8d46be7"},"schema_version":"1.0","source":{"id":"1204.3044","kind":"arxiv","version":3}},"canonical_sha256":"eb23fb1feb3ae6d70a39faadbcaef7301ab2d4135966a48980e55c1be0dd4239","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"eb23fb1feb3ae6d70a39faadbcaef7301ab2d4135966a48980e55c1be0dd4239","first_computed_at":"2026-05-18T03:41:10.714337Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T03:41:10.714337Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"/F3aHbpkWLROF/IPPHhOb6yQHDeY9mH2ILEftPtOk7/BsYVTe9AeLvEiyASqYVvNQLwZXDOwRzSnfEt059qVAw==","signature_status":"signed_v1","signed_at":"2026-05-18T03:41:10.714787Z","signed_message":"canonical_sha256_bytes"},"source_id":"1204.3044","source_kind":"arxiv","source_version":3}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:9eed4e603d9731b1f9b5d063edc4e1977442e666788a8a2a5baaa1d3ea9aff20","sha256:bea3249fccce5a8e58c62fb6b6f51647c96d5a67c009c64be7f32adb1ec4bc4b"],"state_sha256":"dba11772bb6745952985ee6fff646621e5dcfad58a908728793c2c9f27e450b1"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"r5gzZnJLisfP4WJcbCvYEMkXtsD0yJRku4h8x6V6NeC/VPn2opZCyateq2ZS5OP8wmOzkLBc7QDdPn+QGx+PDA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-03T12:07:33.994559Z","bundle_sha256":"4f37e0781e65bad6b533f7ec86d4fe9a5da3999fd0709942415dd1c0f6463bcc"}}