{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2016:4YARE7FDOTYF7MA34GEDLSKZPT","short_pith_number":"pith:4YARE7FD","canonical_record":{"source":{"id":"1603.03093","kind":"arxiv","version":3},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2016-03-09T22:53:25Z","cross_cats_sorted":["cond-mat.mtrl-sci","cond-mat.str-el"],"title_canon_sha256":"34491587fada5d89b72a95bb768a38fec69d2293e6016e96b817c0102b580231","abstract_canon_sha256":"e60578c45e01f691b7fc9431a351c346185497c4df89fcb9f2837f06df84d10a"},"schema_version":"1.0"},"canonical_sha256":"e601127ca374f05fb01be18835c9597cf4e7461b3e81f04b2462ed4c00535ff8","source":{"kind":"arxiv","id":"1603.03093","version":3},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1603.03093","created_at":"2026-05-18T01:10:41Z"},{"alias_kind":"arxiv_version","alias_value":"1603.03093v3","created_at":"2026-05-18T01:10:41Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1603.03093","created_at":"2026-05-18T01:10:41Z"},{"alias_kind":"pith_short_12","alias_value":"4YARE7FDOTYF","created_at":"2026-05-18T12:29:58Z"},{"alias_kind":"pith_short_16","alias_value":"4YARE7FDOTYF7MA3","created_at":"2026-05-18T12:29:58Z"},{"alias_kind":"pith_short_8","alias_value":"4YARE7FD","created_at":"2026-05-18T12:29:58Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2016:4YARE7FDOTYF7MA34GEDLSKZPT","target":"record","payload":{"canonical_record":{"source":{"id":"1603.03093","kind":"arxiv","version":3},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2016-03-09T22:53:25Z","cross_cats_sorted":["cond-mat.mtrl-sci","cond-mat.str-el"],"title_canon_sha256":"34491587fada5d89b72a95bb768a38fec69d2293e6016e96b817c0102b580231","abstract_canon_sha256":"e60578c45e01f691b7fc9431a351c346185497c4df89fcb9f2837f06df84d10a"},"schema_version":"1.0"},"canonical_sha256":"e601127ca374f05fb01be18835c9597cf4e7461b3e81f04b2462ed4c00535ff8","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:10:41.709992Z","signature_b64":"IUQMzxDCox5G6bkVT92uURWu2mimFG2F3n2imjxUkmUwo5SAtRnSsl6K0UowBo/cYqmgbMRJn82plkRPTNEaDw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"e601127ca374f05fb01be18835c9597cf4e7461b3e81f04b2462ed4c00535ff8","last_reissued_at":"2026-05-18T01:10:41.709603Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:10:41.709603Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1603.03093","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":"2026-05-18T01:10:41Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"u1s2h3dwxZ5EcCuATgATLE4o9BZozRvWMcxyl7XPCsLAQZiSQAoqmHdt61Q31L8qSBijmYpmh/ofDohVXT6iCQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-20T03:34:52.976759Z"},"content_sha256":"1007a4830ed0c05708522864370cba33553275a65ae640700334cec855d78964","schema_version":"1.0","event_id":"sha256:1007a4830ed0c05708522864370cba33553275a65ae640700334cec855d78964"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2016:4YARE7FDOTYF7MA34GEDLSKZPT","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Beyond Dirac and Weyl fermions: Unconventional quasiparticles in conventional crystals","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cond-mat.mtrl-sci","cond-mat.str-el"],"primary_cat":"cond-mat.mes-hall","authors_text":"B. Andrei Bernevig, Barry Bradlyn, C. Felser, Jennifer Cano, M.G. Vergniory, R. J. Cava, Zhijun Wang","submitted_at":"2016-03-09T22:53:25Z","abstract_excerpt":"In quantum field theory, we learn that fermions come in three varieties: Majorana, Weyl, and Dirac. Here we show that in solid state systems this classification is incomplete and find several additional types of crystal symmetry-protected free fermionic excitations . We exhaustively classify linear and quadratic 3-, 6- and 8- band crossings stabilized by space group symmetries in solid state systems with spin-orbit coupling and time-reversal symmetry. Several distinct types of fermions arise, differentiated by their degeneracies at and along high symmetry points, lines, and surfaces. Some nota"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1603.03093","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":"2026-05-18T01:10:41Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"oyV6RuxnqvNUrJtLHXDatwZVfyxFiqOvtuj9EBpg6nmDUAYwDsUHwRwC508yynV/XAADOS1G5dJaWq1/IGx3CQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-20T03:34:52.977490Z"},"content_sha256":"35e19b6e5b2a33995915dffbe785a8673a0342f54b40a314016bbf6924a95298","schema_version":"1.0","event_id":"sha256:35e19b6e5b2a33995915dffbe785a8673a0342f54b40a314016bbf6924a95298"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/4YARE7FDOTYF7MA34GEDLSKZPT/bundle.json","state_url":"https://pith.science/pith/4YARE7FDOTYF7MA34GEDLSKZPT/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/4YARE7FDOTYF7MA34GEDLSKZPT/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":"2026-05-20T03:34:52Z","links":{"resolver":"https://pith.science/pith/4YARE7FDOTYF7MA34GEDLSKZPT","bundle":"https://pith.science/pith/4YARE7FDOTYF7MA34GEDLSKZPT/bundle.json","state":"https://pith.science/pith/4YARE7FDOTYF7MA34GEDLSKZPT/state.json","well_known_bundle":"https://pith.science/.well-known/pith/4YARE7FDOTYF7MA34GEDLSKZPT/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2016:4YARE7FDOTYF7MA34GEDLSKZPT","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":"e60578c45e01f691b7fc9431a351c346185497c4df89fcb9f2837f06df84d10a","cross_cats_sorted":["cond-mat.mtrl-sci","cond-mat.str-el"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2016-03-09T22:53:25Z","title_canon_sha256":"34491587fada5d89b72a95bb768a38fec69d2293e6016e96b817c0102b580231"},"schema_version":"1.0","source":{"id":"1603.03093","kind":"arxiv","version":3}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1603.03093","created_at":"2026-05-18T01:10:41Z"},{"alias_kind":"arxiv_version","alias_value":"1603.03093v3","created_at":"2026-05-18T01:10:41Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1603.03093","created_at":"2026-05-18T01:10:41Z"},{"alias_kind":"pith_short_12","alias_value":"4YARE7FDOTYF","created_at":"2026-05-18T12:29:58Z"},{"alias_kind":"pith_short_16","alias_value":"4YARE7FDOTYF7MA3","created_at":"2026-05-18T12:29:58Z"},{"alias_kind":"pith_short_8","alias_value":"4YARE7FD","created_at":"2026-05-18T12:29:58Z"}],"graph_snapshots":[{"event_id":"sha256:35e19b6e5b2a33995915dffbe785a8673a0342f54b40a314016bbf6924a95298","target":"graph","created_at":"2026-05-18T01:10:41Z","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":"In quantum field theory, we learn that fermions come in three varieties: Majorana, Weyl, and Dirac. Here we show that in solid state systems this classification is incomplete and find several additional types of crystal symmetry-protected free fermionic excitations . We exhaustively classify linear and quadratic 3-, 6- and 8- band crossings stabilized by space group symmetries in solid state systems with spin-orbit coupling and time-reversal symmetry. Several distinct types of fermions arise, differentiated by their degeneracies at and along high symmetry points, lines, and surfaces. Some nota","authors_text":"B. Andrei Bernevig, Barry Bradlyn, C. Felser, Jennifer Cano, M.G. Vergniory, R. J. Cava, Zhijun Wang","cross_cats":["cond-mat.mtrl-sci","cond-mat.str-el"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2016-03-09T22:53:25Z","title":"Beyond Dirac and Weyl fermions: Unconventional quasiparticles in conventional crystals"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1603.03093","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":"sha256:1007a4830ed0c05708522864370cba33553275a65ae640700334cec855d78964","target":"record","created_at":"2026-05-18T01:10:41Z","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":"e60578c45e01f691b7fc9431a351c346185497c4df89fcb9f2837f06df84d10a","cross_cats_sorted":["cond-mat.mtrl-sci","cond-mat.str-el"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2016-03-09T22:53:25Z","title_canon_sha256":"34491587fada5d89b72a95bb768a38fec69d2293e6016e96b817c0102b580231"},"schema_version":"1.0","source":{"id":"1603.03093","kind":"arxiv","version":3}},"canonical_sha256":"e601127ca374f05fb01be18835c9597cf4e7461b3e81f04b2462ed4c00535ff8","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"e601127ca374f05fb01be18835c9597cf4e7461b3e81f04b2462ed4c00535ff8","first_computed_at":"2026-05-18T01:10:41.709603Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:10:41.709603Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"IUQMzxDCox5G6bkVT92uURWu2mimFG2F3n2imjxUkmUwo5SAtRnSsl6K0UowBo/cYqmgbMRJn82plkRPTNEaDw==","signature_status":"signed_v1","signed_at":"2026-05-18T01:10:41.709992Z","signed_message":"canonical_sha256_bytes"},"source_id":"1603.03093","source_kind":"arxiv","source_version":3}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:1007a4830ed0c05708522864370cba33553275a65ae640700334cec855d78964","sha256:35e19b6e5b2a33995915dffbe785a8673a0342f54b40a314016bbf6924a95298"],"state_sha256":"fb31509a6acf8ce58fd1474477213925957d4b79938f3c166db8eaa54f6c52de"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"elm8nXZWbJuGBmpDGwKqsbZZfCEQoqO06OyaRgvmRLCJ2+Zkj3H2Re1xMf4fGTUr1ZcTGFdWdOvZphY3XPk+Cg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-20T03:34:52.982058Z","bundle_sha256":"fce18fec545b915f5e9b843d9fe7739ade61081961ecb4813afddb6ffd21a82a"}}