{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2016:AQCCJ7BHQUIX3JKE2XEMMDVT3N","short_pith_number":"pith:AQCCJ7BH","canonical_record":{"source":{"id":"1610.07132","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2016-10-23T08:36:35Z","cross_cats_sorted":[],"title_canon_sha256":"12cba26670461d40a661467766bceff46bcc597786d3099da6a4434d2ab3092f","abstract_canon_sha256":"527dc0a7a370f06f0199d0f9189a3aa6d6cdee6816231ecb53c460b3fb9deb46"},"schema_version":"1.0"},"canonical_sha256":"040424fc2785117da544d5c8c60eb3db6eb315b621d199f9e4d103fe2c9c1862","source":{"kind":"arxiv","id":"1610.07132","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1610.07132","created_at":"2026-05-18T00:44:35Z"},{"alias_kind":"arxiv_version","alias_value":"1610.07132v1","created_at":"2026-05-18T00:44:35Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1610.07132","created_at":"2026-05-18T00:44:35Z"},{"alias_kind":"pith_short_12","alias_value":"AQCCJ7BHQUIX","created_at":"2026-05-18T12:30:07Z"},{"alias_kind":"pith_short_16","alias_value":"AQCCJ7BHQUIX3JKE","created_at":"2026-05-18T12:30:07Z"},{"alias_kind":"pith_short_8","alias_value":"AQCCJ7BH","created_at":"2026-05-18T12:30:07Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2016:AQCCJ7BHQUIX3JKE2XEMMDVT3N","target":"record","payload":{"canonical_record":{"source":{"id":"1610.07132","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2016-10-23T08:36:35Z","cross_cats_sorted":[],"title_canon_sha256":"12cba26670461d40a661467766bceff46bcc597786d3099da6a4434d2ab3092f","abstract_canon_sha256":"527dc0a7a370f06f0199d0f9189a3aa6d6cdee6816231ecb53c460b3fb9deb46"},"schema_version":"1.0"},"canonical_sha256":"040424fc2785117da544d5c8c60eb3db6eb315b621d199f9e4d103fe2c9c1862","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:44:35.254501Z","signature_b64":"gEqSwhSEERfuzOB96/zChh5n13chiIa9laethOEzUz7HfqurTgatuqO6u1A3FaL8I53/8ldd4BpghKhJkBi0BA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"040424fc2785117da544d5c8c60eb3db6eb315b621d199f9e4d103fe2c9c1862","last_reissued_at":"2026-05-18T00:44:35.253787Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:44:35.253787Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1610.07132","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":"2026-05-18T00:44:35Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"VJiyHvxfdIwGF4Tyk/U+IHGUeC7vbS4kkHFQ++N1KXCwekIAl7yrapLPfU1sQYe9UaXM101ZAYoYf0hBzaNHBw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-31T10:53:21.836415Z"},"content_sha256":"46eed2942f719a20977247e8fb9c4f1c985e5e9d64cd2ef87891d52c92d848ee","schema_version":"1.0","event_id":"sha256:46eed2942f719a20977247e8fb9c4f1c985e5e9d64cd2ef87891d52c92d848ee"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2016:AQCCJ7BHQUIX3JKE2XEMMDVT3N","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Emergence of topological semimetals in gap closing in semiconductors without inversion symmetry","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.mes-hall","authors_text":"Motoaki Hirayama, Ryo Okugawa, Shuichi Murakami, Takashi Miyake","submitted_at":"2016-10-23T08:36:35Z","abstract_excerpt":"A band gap for electronic states in crystals governs various properties of solids, such as transport, optical and magnetic properties. Its estimation and control have been an important issue in solid state physics. The band gap can be controlled externally by various parameters, such as pressure, atomic compositions and external field. Sometimes, the gap even collapses by tuning some parameter. In the field of topological insulators, such closing of the gap at a time-reversal invariant momentum indicates a band inversion, i.e. it leads to a topological phase transition from a normal insulator "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1610.07132","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":"2026-05-18T00:44:35Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"zsUxYjTW3bCWqbqEoPPaGShcfSnV5aZlVCQDhawipmK0sqKkHtZS4oPli53vox3M0q4w9c2VzeeVuwO01wWcCw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-31T10:53:21.837061Z"},"content_sha256":"f5a1c3ea63a7b91798a62e704064882cb032d0a6d4b64224546719c699b5d6c7","schema_version":"1.0","event_id":"sha256:f5a1c3ea63a7b91798a62e704064882cb032d0a6d4b64224546719c699b5d6c7"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/AQCCJ7BHQUIX3JKE2XEMMDVT3N/bundle.json","state_url":"https://pith.science/pith/AQCCJ7BHQUIX3JKE2XEMMDVT3N/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/AQCCJ7BHQUIX3JKE2XEMMDVT3N/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":"2026-05-31T10:53:21Z","links":{"resolver":"https://pith.science/pith/AQCCJ7BHQUIX3JKE2XEMMDVT3N","bundle":"https://pith.science/pith/AQCCJ7BHQUIX3JKE2XEMMDVT3N/bundle.json","state":"https://pith.science/pith/AQCCJ7BHQUIX3JKE2XEMMDVT3N/state.json","well_known_bundle":"https://pith.science/.well-known/pith/AQCCJ7BHQUIX3JKE2XEMMDVT3N/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2016:AQCCJ7BHQUIX3JKE2XEMMDVT3N","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":"527dc0a7a370f06f0199d0f9189a3aa6d6cdee6816231ecb53c460b3fb9deb46","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2016-10-23T08:36:35Z","title_canon_sha256":"12cba26670461d40a661467766bceff46bcc597786d3099da6a4434d2ab3092f"},"schema_version":"1.0","source":{"id":"1610.07132","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1610.07132","created_at":"2026-05-18T00:44:35Z"},{"alias_kind":"arxiv_version","alias_value":"1610.07132v1","created_at":"2026-05-18T00:44:35Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1610.07132","created_at":"2026-05-18T00:44:35Z"},{"alias_kind":"pith_short_12","alias_value":"AQCCJ7BHQUIX","created_at":"2026-05-18T12:30:07Z"},{"alias_kind":"pith_short_16","alias_value":"AQCCJ7BHQUIX3JKE","created_at":"2026-05-18T12:30:07Z"},{"alias_kind":"pith_short_8","alias_value":"AQCCJ7BH","created_at":"2026-05-18T12:30:07Z"}],"graph_snapshots":[{"event_id":"sha256:f5a1c3ea63a7b91798a62e704064882cb032d0a6d4b64224546719c699b5d6c7","target":"graph","created_at":"2026-05-18T00:44:35Z","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":"A band gap for electronic states in crystals governs various properties of solids, such as transport, optical and magnetic properties. Its estimation and control have been an important issue in solid state physics. The band gap can be controlled externally by various parameters, such as pressure, atomic compositions and external field. Sometimes, the gap even collapses by tuning some parameter. In the field of topological insulators, such closing of the gap at a time-reversal invariant momentum indicates a band inversion, i.e. it leads to a topological phase transition from a normal insulator ","authors_text":"Motoaki Hirayama, Ryo Okugawa, Shuichi Murakami, Takashi Miyake","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2016-10-23T08:36:35Z","title":"Emergence of topological semimetals in gap closing in semiconductors without inversion symmetry"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1610.07132","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":"sha256:46eed2942f719a20977247e8fb9c4f1c985e5e9d64cd2ef87891d52c92d848ee","target":"record","created_at":"2026-05-18T00:44:35Z","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":"527dc0a7a370f06f0199d0f9189a3aa6d6cdee6816231ecb53c460b3fb9deb46","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2016-10-23T08:36:35Z","title_canon_sha256":"12cba26670461d40a661467766bceff46bcc597786d3099da6a4434d2ab3092f"},"schema_version":"1.0","source":{"id":"1610.07132","kind":"arxiv","version":1}},"canonical_sha256":"040424fc2785117da544d5c8c60eb3db6eb315b621d199f9e4d103fe2c9c1862","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"040424fc2785117da544d5c8c60eb3db6eb315b621d199f9e4d103fe2c9c1862","first_computed_at":"2026-05-18T00:44:35.253787Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:44:35.253787Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"gEqSwhSEERfuzOB96/zChh5n13chiIa9laethOEzUz7HfqurTgatuqO6u1A3FaL8I53/8ldd4BpghKhJkBi0BA==","signature_status":"signed_v1","signed_at":"2026-05-18T00:44:35.254501Z","signed_message":"canonical_sha256_bytes"},"source_id":"1610.07132","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:46eed2942f719a20977247e8fb9c4f1c985e5e9d64cd2ef87891d52c92d848ee","sha256:f5a1c3ea63a7b91798a62e704064882cb032d0a6d4b64224546719c699b5d6c7"],"state_sha256":"a933bf25ba42c0783d56423f75d2ba6ca482052e3597271698c297a1abf6b160"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"tzIZ5aY+MiEsZiIeu/x8i2WYVuE22IkkNr2o4xMyksXME7+tnDJekcnVb/gXZq6dbuJKcBY+rzXTMrW0zHuJBQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-31T10:53:21.841303Z","bundle_sha256":"242411e6ce15e62a7dee3d679d174762c17c1f11b7893a03c76781e0949955e0"}}