{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2021:HFKLIVORRQUEEIXIWJWV2JSLZW","short_pith_number":"pith:HFKLIVOR","canonical_record":{"source":{"id":"2103.11606","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2021-03-22T06:22:14Z","cross_cats_sorted":[],"title_canon_sha256":"cd6972a8e9d8540702eb1d1f08ef95c4715bf78ed497d2908dc88f3946b5cdeb","abstract_canon_sha256":"80fa81a89c289f12aff36f67448130c31d8585c1c58e33f96c1d1b824537946d"},"schema_version":"1.0"},"canonical_sha256":"3954b455d18c284222e8b26d5d264bcdba4363f2b1e27c78cd550dc66e48bbd0","source":{"kind":"arxiv","id":"2103.11606","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2103.11606","created_at":"2026-07-05T02:25:01Z"},{"alias_kind":"arxiv_version","alias_value":"2103.11606v1","created_at":"2026-07-05T02:25:01Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2103.11606","created_at":"2026-07-05T02:25:01Z"},{"alias_kind":"pith_short_12","alias_value":"HFKLIVORRQUE","created_at":"2026-07-05T02:25:01Z"},{"alias_kind":"pith_short_16","alias_value":"HFKLIVORRQUEEIXI","created_at":"2026-07-05T02:25:01Z"},{"alias_kind":"pith_short_8","alias_value":"HFKLIVOR","created_at":"2026-07-05T02:25:01Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2021:HFKLIVORRQUEEIXIWJWV2JSLZW","target":"record","payload":{"canonical_record":{"source":{"id":"2103.11606","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2021-03-22T06:22:14Z","cross_cats_sorted":[],"title_canon_sha256":"cd6972a8e9d8540702eb1d1f08ef95c4715bf78ed497d2908dc88f3946b5cdeb","abstract_canon_sha256":"80fa81a89c289f12aff36f67448130c31d8585c1c58e33f96c1d1b824537946d"},"schema_version":"1.0"},"canonical_sha256":"3954b455d18c284222e8b26d5d264bcdba4363f2b1e27c78cd550dc66e48bbd0","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T02:25:01.895217Z","signature_b64":"XI6r1VpwYAnwLu1tq82Hndb0xAnCz6pDsHE3jPoOvHVhv3P/c17oU/cuQjc5W7LQbQBf4IeJ4ECKI+fAxeq+Ag==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"3954b455d18c284222e8b26d5d264bcdba4363f2b1e27c78cd550dc66e48bbd0","last_reissued_at":"2026-07-05T02:25:01.894768Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T02:25:01.894768Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2103.11606","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":"2026-07-05T02:25:01Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"BZ9pEN+xVRVNvcgIW7mmJtO6uq2FXn+cVH7xRz6DjkK7SwY8DBO8kd9RxLsTivts2uJhaf2s6CCp+mV6O+UABw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-05T02:10:26.606883Z"},"content_sha256":"304831c8df5d838545cef0277672b5d5a525e6475883ec21055e1b8252dd07f7","schema_version":"1.0","event_id":"sha256:304831c8df5d838545cef0277672b5d5a525e6475883ec21055e1b8252dd07f7"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2021:HFKLIVORRQUEEIXIWJWV2JSLZW","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Topological quantum materials from the viewpoint of chemistry","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.mtrl-sci","authors_text":"Chandra Shekhar, Claudia Felser, Kaustuv Manna, Nitesh Kumar, Satya N. Guin","submitted_at":"2021-03-22T06:22:14Z","abstract_excerpt":"Topology, a mathematical concept, has recently become a popular and truly transdisciplinary topic encompassing condensed matter physics, solid state chemistry, and materials science. Since there is a direct connection between real space, namely atoms, valence electrons, bonds and orbitals, and reciprocal space, namely bands and Fermi surfaces, via symmetry and topology, classifying topological materials within a single-particle picture is possible. Currently, most materials are classified as trivial insulators, semimetals and metals, or as topological insulators, Dirac and Weyl nodal-line semi"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2103.11606","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2103.11606/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":"2026-07-05T02:25:01Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"lwfRNLifljWDf6tE2wAyMtNDedsZkdTgbM970z7M1BbPMvS8jPZoc8RRO/AI5CfTLe/zoL2LlNyNSX3icl5LAA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-05T02:10:26.607410Z"},"content_sha256":"d279a697eb407ce4a20e1291e6dc20b7ae6c3d8e27b0f8b709c960b1c35b1ce7","schema_version":"1.0","event_id":"sha256:d279a697eb407ce4a20e1291e6dc20b7ae6c3d8e27b0f8b709c960b1c35b1ce7"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/HFKLIVORRQUEEIXIWJWV2JSLZW/bundle.json","state_url":"https://pith.science/pith/HFKLIVORRQUEEIXIWJWV2JSLZW/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/HFKLIVORRQUEEIXIWJWV2JSLZW/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":"2026-08-05T02:10:26Z","links":{"resolver":"https://pith.science/pith/HFKLIVORRQUEEIXIWJWV2JSLZW","bundle":"https://pith.science/pith/HFKLIVORRQUEEIXIWJWV2JSLZW/bundle.json","state":"https://pith.science/pith/HFKLIVORRQUEEIXIWJWV2JSLZW/state.json","well_known_bundle":"https://pith.science/.well-known/pith/HFKLIVORRQUEEIXIWJWV2JSLZW/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2021:HFKLIVORRQUEEIXIWJWV2JSLZW","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":"80fa81a89c289f12aff36f67448130c31d8585c1c58e33f96c1d1b824537946d","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2021-03-22T06:22:14Z","title_canon_sha256":"cd6972a8e9d8540702eb1d1f08ef95c4715bf78ed497d2908dc88f3946b5cdeb"},"schema_version":"1.0","source":{"id":"2103.11606","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2103.11606","created_at":"2026-07-05T02:25:01Z"},{"alias_kind":"arxiv_version","alias_value":"2103.11606v1","created_at":"2026-07-05T02:25:01Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2103.11606","created_at":"2026-07-05T02:25:01Z"},{"alias_kind":"pith_short_12","alias_value":"HFKLIVORRQUE","created_at":"2026-07-05T02:25:01Z"},{"alias_kind":"pith_short_16","alias_value":"HFKLIVORRQUEEIXI","created_at":"2026-07-05T02:25:01Z"},{"alias_kind":"pith_short_8","alias_value":"HFKLIVOR","created_at":"2026-07-05T02:25:01Z"}],"graph_snapshots":[{"event_id":"sha256:d279a697eb407ce4a20e1291e6dc20b7ae6c3d8e27b0f8b709c960b1c35b1ce7","target":"graph","created_at":"2026-07-05T02:25:01Z","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/2103.11606/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Topology, a mathematical concept, has recently become a popular and truly transdisciplinary topic encompassing condensed matter physics, solid state chemistry, and materials science. Since there is a direct connection between real space, namely atoms, valence electrons, bonds and orbitals, and reciprocal space, namely bands and Fermi surfaces, via symmetry and topology, classifying topological materials within a single-particle picture is possible. Currently, most materials are classified as trivial insulators, semimetals and metals, or as topological insulators, Dirac and Weyl nodal-line semi","authors_text":"Chandra Shekhar, Claudia Felser, Kaustuv Manna, Nitesh Kumar, Satya N. Guin","cross_cats":[],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2021-03-22T06:22:14Z","title":"Topological quantum materials from the viewpoint of chemistry"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2103.11606","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":"sha256:304831c8df5d838545cef0277672b5d5a525e6475883ec21055e1b8252dd07f7","target":"record","created_at":"2026-07-05T02:25:01Z","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":"80fa81a89c289f12aff36f67448130c31d8585c1c58e33f96c1d1b824537946d","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2021-03-22T06:22:14Z","title_canon_sha256":"cd6972a8e9d8540702eb1d1f08ef95c4715bf78ed497d2908dc88f3946b5cdeb"},"schema_version":"1.0","source":{"id":"2103.11606","kind":"arxiv","version":1}},"canonical_sha256":"3954b455d18c284222e8b26d5d264bcdba4363f2b1e27c78cd550dc66e48bbd0","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"3954b455d18c284222e8b26d5d264bcdba4363f2b1e27c78cd550dc66e48bbd0","first_computed_at":"2026-07-05T02:25:01.894768Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T02:25:01.894768Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"XI6r1VpwYAnwLu1tq82Hndb0xAnCz6pDsHE3jPoOvHVhv3P/c17oU/cuQjc5W7LQbQBf4IeJ4ECKI+fAxeq+Ag==","signature_status":"signed_v1","signed_at":"2026-07-05T02:25:01.895217Z","signed_message":"canonical_sha256_bytes"},"source_id":"2103.11606","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:304831c8df5d838545cef0277672b5d5a525e6475883ec21055e1b8252dd07f7","sha256:d279a697eb407ce4a20e1291e6dc20b7ae6c3d8e27b0f8b709c960b1c35b1ce7"],"state_sha256":"de314475bce9c4aaa84aa616fc15e2be3416288e711bfc68a4067209535366e5"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"vtwQ22jB+9lfj+aGj6NM6RnHyPgW37WQfyMdJ2Wwq0aRS6iymuqHdh8b2yD3sYB8nY1Aamqtfz6RRb+UeaazAA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-05T02:10:26.612950Z","bundle_sha256":"74ba6564f63428d34cc89b5a16b5d745c498518ce7425e66d399fecf2e09d974"}}