{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2010:K2WEXI4544SWQFIFNJ2JBHMAAJ","short_pith_number":"pith:K2WEXI45","canonical_record":{"source":{"id":"1004.5172","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2010-04-29T01:38:57Z","cross_cats_sorted":[],"title_canon_sha256":"eff01b3b881a8114f8c8e771d4de20243f9e7faf4a12b3e6e73f33d3ed614ea1","abstract_canon_sha256":"e05a279b2a9dd37fd819e8d61d019408c95861505c15432e902da2197f8337ac"},"schema_version":"1.0"},"canonical_sha256":"56ac4ba39de7256815056a74909d800259658bf8443a4f661f30f9d4b6a19b05","source":{"kind":"arxiv","id":"1004.5172","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1004.5172","created_at":"2026-05-18T04:36:33Z"},{"alias_kind":"arxiv_version","alias_value":"1004.5172v1","created_at":"2026-05-18T04:36:33Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1004.5172","created_at":"2026-05-18T04:36:33Z"},{"alias_kind":"pith_short_12","alias_value":"K2WEXI4544SW","created_at":"2026-05-18T12:26:09Z"},{"alias_kind":"pith_short_16","alias_value":"K2WEXI4544SWQFIF","created_at":"2026-05-18T12:26:09Z"},{"alias_kind":"pith_short_8","alias_value":"K2WEXI45","created_at":"2026-05-18T12:26:09Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2010:K2WEXI4544SWQFIFNJ2JBHMAAJ","target":"record","payload":{"canonical_record":{"source":{"id":"1004.5172","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2010-04-29T01:38:57Z","cross_cats_sorted":[],"title_canon_sha256":"eff01b3b881a8114f8c8e771d4de20243f9e7faf4a12b3e6e73f33d3ed614ea1","abstract_canon_sha256":"e05a279b2a9dd37fd819e8d61d019408c95861505c15432e902da2197f8337ac"},"schema_version":"1.0"},"canonical_sha256":"56ac4ba39de7256815056a74909d800259658bf8443a4f661f30f9d4b6a19b05","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T04:36:33.779320Z","signature_b64":"DoR3Z6b37sw/qN4uBL8/6VXYolJO5RDol3CYU4zi4mZnv3sOQrrY541u/udVgYra5ZYMf2f3uBhhdxZASG0/Bg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"56ac4ba39de7256815056a74909d800259658bf8443a4f661f30f9d4b6a19b05","last_reissued_at":"2026-05-18T04:36:33.778924Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T04:36:33.778924Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1004.5172","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":"2026-05-18T04:36:33Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Zpk/isBwAQHLl1zYRGVV+nVp2yTxe/3+7g7uR/lXuzvGZ7GvZvV/DWd5hSfjWYUY7THRYCVUEXMAwFhIt14ADA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-31T22:09:08.811166Z"},"content_sha256":"543c800e49518a06c304878fd9fe4399663a6cec0fec0dc25e0de41b45643ff2","schema_version":"1.0","event_id":"sha256:543c800e49518a06c304878fd9fe4399663a6cec0fec0dc25e0de41b45643ff2"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2010:K2WEXI4544SWQFIFNJ2JBHMAAJ","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Topological Insulators on the Lieb and Perovskite Lattices","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.mes-hall","authors_text":"C. Weeks, M. Franz","submitted_at":"2010-04-29T01:38:57Z","abstract_excerpt":"Electrons hopping on the sites of a two-dimensional Lieb lattice and three-dimensional edge centered cubic (perovskite) lattice are shown to form topologically non-trivial insulating phases when spin-orbit coupling is introduced. These simple models on lattices with cubic symmetry show a Dirac-like structure in the excitation spectrum but with the unusual feature that there is a dispersionless band through the center of the spectrum and only a single Dirac cone per Brillouin zone."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1004.5172","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":"2026-05-18T04:36:33Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"fjA96JzVGy80gzaepihCkeZrgKQQjoqgFHcNeAhFsGx9at/LGWTkg3QeG6oBBEwnVZvfBpxUQOjrzA3gV1uNBw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-31T22:09:08.811642Z"},"content_sha256":"9b6c056dff8b9c195c66816f5595f926b4d3bd06c9c2a1add919b3ed1b955c96","schema_version":"1.0","event_id":"sha256:9b6c056dff8b9c195c66816f5595f926b4d3bd06c9c2a1add919b3ed1b955c96"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/K2WEXI4544SWQFIFNJ2JBHMAAJ/bundle.json","state_url":"https://pith.science/pith/K2WEXI4544SWQFIFNJ2JBHMAAJ/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/K2WEXI4544SWQFIFNJ2JBHMAAJ/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":"2026-05-31T22:09:08Z","links":{"resolver":"https://pith.science/pith/K2WEXI4544SWQFIFNJ2JBHMAAJ","bundle":"https://pith.science/pith/K2WEXI4544SWQFIFNJ2JBHMAAJ/bundle.json","state":"https://pith.science/pith/K2WEXI4544SWQFIFNJ2JBHMAAJ/state.json","well_known_bundle":"https://pith.science/.well-known/pith/K2WEXI4544SWQFIFNJ2JBHMAAJ/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2010:K2WEXI4544SWQFIFNJ2JBHMAAJ","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":"e05a279b2a9dd37fd819e8d61d019408c95861505c15432e902da2197f8337ac","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2010-04-29T01:38:57Z","title_canon_sha256":"eff01b3b881a8114f8c8e771d4de20243f9e7faf4a12b3e6e73f33d3ed614ea1"},"schema_version":"1.0","source":{"id":"1004.5172","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1004.5172","created_at":"2026-05-18T04:36:33Z"},{"alias_kind":"arxiv_version","alias_value":"1004.5172v1","created_at":"2026-05-18T04:36:33Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1004.5172","created_at":"2026-05-18T04:36:33Z"},{"alias_kind":"pith_short_12","alias_value":"K2WEXI4544SW","created_at":"2026-05-18T12:26:09Z"},{"alias_kind":"pith_short_16","alias_value":"K2WEXI4544SWQFIF","created_at":"2026-05-18T12:26:09Z"},{"alias_kind":"pith_short_8","alias_value":"K2WEXI45","created_at":"2026-05-18T12:26:09Z"}],"graph_snapshots":[{"event_id":"sha256:9b6c056dff8b9c195c66816f5595f926b4d3bd06c9c2a1add919b3ed1b955c96","target":"graph","created_at":"2026-05-18T04:36:33Z","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":"Electrons hopping on the sites of a two-dimensional Lieb lattice and three-dimensional edge centered cubic (perovskite) lattice are shown to form topologically non-trivial insulating phases when spin-orbit coupling is introduced. These simple models on lattices with cubic symmetry show a Dirac-like structure in the excitation spectrum but with the unusual feature that there is a dispersionless band through the center of the spectrum and only a single Dirac cone per Brillouin zone.","authors_text":"C. Weeks, M. Franz","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2010-04-29T01:38:57Z","title":"Topological Insulators on the Lieb and Perovskite Lattices"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1004.5172","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":"sha256:543c800e49518a06c304878fd9fe4399663a6cec0fec0dc25e0de41b45643ff2","target":"record","created_at":"2026-05-18T04:36:33Z","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":"e05a279b2a9dd37fd819e8d61d019408c95861505c15432e902da2197f8337ac","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2010-04-29T01:38:57Z","title_canon_sha256":"eff01b3b881a8114f8c8e771d4de20243f9e7faf4a12b3e6e73f33d3ed614ea1"},"schema_version":"1.0","source":{"id":"1004.5172","kind":"arxiv","version":1}},"canonical_sha256":"56ac4ba39de7256815056a74909d800259658bf8443a4f661f30f9d4b6a19b05","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"56ac4ba39de7256815056a74909d800259658bf8443a4f661f30f9d4b6a19b05","first_computed_at":"2026-05-18T04:36:33.778924Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T04:36:33.778924Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"DoR3Z6b37sw/qN4uBL8/6VXYolJO5RDol3CYU4zi4mZnv3sOQrrY541u/udVgYra5ZYMf2f3uBhhdxZASG0/Bg==","signature_status":"signed_v1","signed_at":"2026-05-18T04:36:33.779320Z","signed_message":"canonical_sha256_bytes"},"source_id":"1004.5172","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:543c800e49518a06c304878fd9fe4399663a6cec0fec0dc25e0de41b45643ff2","sha256:9b6c056dff8b9c195c66816f5595f926b4d3bd06c9c2a1add919b3ed1b955c96"],"state_sha256":"1a25acb6e5f8cf5cfe0689fafc926f2880680aa6b8713c2678b28ab9789dcfc9"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"nEqps6uSUaL84EY5SqSsrRfGwikW/uF6hmi7IOIgSAj4e8ahhvi9jSMg2T78NlNmqlvbf9HkIhn1ILZuDO35Bg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-31T22:09:08.814302Z","bundle_sha256":"591e348cbb5ffd424a5f90123f8d52ac9265e6070e7739ece987865c7545ef93"}}