{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2016:2PAZKTN3UXA5FEWJSQYOUYNN6X","short_pith_number":"pith:2PAZKTN3","canonical_record":{"source":{"id":"1610.06451","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2016-10-20T14:59:24Z","cross_cats_sorted":[],"title_canon_sha256":"91281e5067e8d6ad80166f037b238655f8d8cf838198fc7db5704b7b19b33eaf","abstract_canon_sha256":"4f6aa56dc3a24952818ce962e46fa3e30c252fdc20707fe4fe35fee3761f1aeb"},"schema_version":"1.0"},"canonical_sha256":"d3c1954dbba5c1d292c99430ea61adf5ee9fc6ffc3322ba67e87a66615f14c58","source":{"kind":"arxiv","id":"1610.06451","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1610.06451","created_at":"2026-05-18T00:46:16Z"},{"alias_kind":"arxiv_version","alias_value":"1610.06451v1","created_at":"2026-05-18T00:46:16Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1610.06451","created_at":"2026-05-18T00:46:16Z"},{"alias_kind":"pith_short_12","alias_value":"2PAZKTN3UXA5","created_at":"2026-05-18T12:29:55Z"},{"alias_kind":"pith_short_16","alias_value":"2PAZKTN3UXA5FEWJ","created_at":"2026-05-18T12:29:55Z"},{"alias_kind":"pith_short_8","alias_value":"2PAZKTN3","created_at":"2026-05-18T12:29:55Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2016:2PAZKTN3UXA5FEWJSQYOUYNN6X","target":"record","payload":{"canonical_record":{"source":{"id":"1610.06451","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2016-10-20T14:59:24Z","cross_cats_sorted":[],"title_canon_sha256":"91281e5067e8d6ad80166f037b238655f8d8cf838198fc7db5704b7b19b33eaf","abstract_canon_sha256":"4f6aa56dc3a24952818ce962e46fa3e30c252fdc20707fe4fe35fee3761f1aeb"},"schema_version":"1.0"},"canonical_sha256":"d3c1954dbba5c1d292c99430ea61adf5ee9fc6ffc3322ba67e87a66615f14c58","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:46:16.103734Z","signature_b64":"TzYCMOBrJ2MkVjBIyH6KMGgRd/h7TgWmQowMJn+rxWjR63nDAyDvKH/ZBfz0NgQ9l/x/5fp2IAt90BkFBV72AA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"d3c1954dbba5c1d292c99430ea61adf5ee9fc6ffc3322ba67e87a66615f14c58","last_reissued_at":"2026-05-18T00:46:16.103052Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:46:16.103052Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1610.06451","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":"2026-05-18T00:46:16Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"pm1yIC4Wggg7to8zHCE++MZcaO4BIGs5VWCZbW3sJ0wGMdWtM7eLDlK25yurSoWGMN7i9c8IHcMWgNnrdSlpBw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-01T22:18:56.191836Z"},"content_sha256":"9c06b17bea696ead0487730b94f8f83cc9339e1713d27642606c411cc2b84efa","schema_version":"1.0","event_id":"sha256:9c06b17bea696ead0487730b94f8f83cc9339e1713d27642606c411cc2b84efa"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2016:2PAZKTN3UXA5FEWJSQYOUYNN6X","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Hybrid-Density Functional Theory Study on Band Structures of Tetradymite-Bi2Te3, Sb2Te3, Bi2Se3, and Sb2Se3 Thermoelectric Materials","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.mtrl-sci","authors_text":"Byungki Ryu, Sudong Park","submitted_at":"2016-10-20T14:59:24Z","abstract_excerpt":"The low energy band structure near the band gap determines the electrical performance of thermoelectric materials. Here, by using the hybrid-density functional theory (hybrid-DFT) calculations, we calculate the low energy band structure of Bi2Te3, Sb2Te3, Bi2Se3 and Sb2Se3 in tetradymite phase. We find that the band structure characteristics are very sensitive the selection of the exchange energy functional. The predictability of the band gaps and band degeneracies is not enhanced in hybrid-DFT calculations, as compared to DFT calculations. The poor prediction of low energy band structures is "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1610.06451","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":"2026-05-18T00:46:16Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"UxGlnDBN916IDeeAnvtiMnqHDSgAVRGGXwJlrRDAuSDzsSwvdsyvWacv2sF1z8KfQufI1Fvvyd4F9MqGyTCPDQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-01T22:18:56.192187Z"},"content_sha256":"4a0a2330831e25cb89a8994e256a11f8cdf74d8ed9bdebada582b4430a35aa8c","schema_version":"1.0","event_id":"sha256:4a0a2330831e25cb89a8994e256a11f8cdf74d8ed9bdebada582b4430a35aa8c"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/2PAZKTN3UXA5FEWJSQYOUYNN6X/bundle.json","state_url":"https://pith.science/pith/2PAZKTN3UXA5FEWJSQYOUYNN6X/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/2PAZKTN3UXA5FEWJSQYOUYNN6X/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":"2026-06-01T22:18:56Z","links":{"resolver":"https://pith.science/pith/2PAZKTN3UXA5FEWJSQYOUYNN6X","bundle":"https://pith.science/pith/2PAZKTN3UXA5FEWJSQYOUYNN6X/bundle.json","state":"https://pith.science/pith/2PAZKTN3UXA5FEWJSQYOUYNN6X/state.json","well_known_bundle":"https://pith.science/.well-known/pith/2PAZKTN3UXA5FEWJSQYOUYNN6X/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2016:2PAZKTN3UXA5FEWJSQYOUYNN6X","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":"4f6aa56dc3a24952818ce962e46fa3e30c252fdc20707fe4fe35fee3761f1aeb","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2016-10-20T14:59:24Z","title_canon_sha256":"91281e5067e8d6ad80166f037b238655f8d8cf838198fc7db5704b7b19b33eaf"},"schema_version":"1.0","source":{"id":"1610.06451","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1610.06451","created_at":"2026-05-18T00:46:16Z"},{"alias_kind":"arxiv_version","alias_value":"1610.06451v1","created_at":"2026-05-18T00:46:16Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1610.06451","created_at":"2026-05-18T00:46:16Z"},{"alias_kind":"pith_short_12","alias_value":"2PAZKTN3UXA5","created_at":"2026-05-18T12:29:55Z"},{"alias_kind":"pith_short_16","alias_value":"2PAZKTN3UXA5FEWJ","created_at":"2026-05-18T12:29:55Z"},{"alias_kind":"pith_short_8","alias_value":"2PAZKTN3","created_at":"2026-05-18T12:29:55Z"}],"graph_snapshots":[{"event_id":"sha256:4a0a2330831e25cb89a8994e256a11f8cdf74d8ed9bdebada582b4430a35aa8c","target":"graph","created_at":"2026-05-18T00:46:16Z","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 low energy band structure near the band gap determines the electrical performance of thermoelectric materials. Here, by using the hybrid-density functional theory (hybrid-DFT) calculations, we calculate the low energy band structure of Bi2Te3, Sb2Te3, Bi2Se3 and Sb2Se3 in tetradymite phase. We find that the band structure characteristics are very sensitive the selection of the exchange energy functional. The predictability of the band gaps and band degeneracies is not enhanced in hybrid-DFT calculations, as compared to DFT calculations. The poor prediction of low energy band structures is ","authors_text":"Byungki Ryu, Sudong Park","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2016-10-20T14:59:24Z","title":"Hybrid-Density Functional Theory Study on Band Structures of Tetradymite-Bi2Te3, Sb2Te3, Bi2Se3, and Sb2Se3 Thermoelectric Materials"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1610.06451","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":"sha256:9c06b17bea696ead0487730b94f8f83cc9339e1713d27642606c411cc2b84efa","target":"record","created_at":"2026-05-18T00:46:16Z","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":"4f6aa56dc3a24952818ce962e46fa3e30c252fdc20707fe4fe35fee3761f1aeb","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2016-10-20T14:59:24Z","title_canon_sha256":"91281e5067e8d6ad80166f037b238655f8d8cf838198fc7db5704b7b19b33eaf"},"schema_version":"1.0","source":{"id":"1610.06451","kind":"arxiv","version":1}},"canonical_sha256":"d3c1954dbba5c1d292c99430ea61adf5ee9fc6ffc3322ba67e87a66615f14c58","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"d3c1954dbba5c1d292c99430ea61adf5ee9fc6ffc3322ba67e87a66615f14c58","first_computed_at":"2026-05-18T00:46:16.103052Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:46:16.103052Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"TzYCMOBrJ2MkVjBIyH6KMGgRd/h7TgWmQowMJn+rxWjR63nDAyDvKH/ZBfz0NgQ9l/x/5fp2IAt90BkFBV72AA==","signature_status":"signed_v1","signed_at":"2026-05-18T00:46:16.103734Z","signed_message":"canonical_sha256_bytes"},"source_id":"1610.06451","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:9c06b17bea696ead0487730b94f8f83cc9339e1713d27642606c411cc2b84efa","sha256:4a0a2330831e25cb89a8994e256a11f8cdf74d8ed9bdebada582b4430a35aa8c"],"state_sha256":"4b1bf937e38ae64772a598139cbc4172de2fca82b3a3412a6809088389eeebf1"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"XivJGKRYvT6FlRQmJ4dGKnwAM0gDRQmcokeUHFOgNzSKvmNGE3fgIMb2Tj+y3xJ1XA7Z/gG43bo9U0G9cjOUCQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-01T22:18:56.194227Z","bundle_sha256":"f25bada2148bb83eb45a31d7d8ba6f739024de73f69818bad2028b6b1e73c69b"}}