{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2017:UBXSJCCLXXJ65LJVIIIJCEUFAG","short_pith_number":"pith:UBXSJCCL","canonical_record":{"source":{"id":"1704.03703","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2017-04-12T11:11:23Z","cross_cats_sorted":[],"title_canon_sha256":"1a84b85412f0c34db14671d3ee7f258eb77886ac2c609b11eeca3bdf321ffbea","abstract_canon_sha256":"752d49243d3660e465a3def2a5384814b9dfef477cc597b18c456b4b5d2cefb1"},"schema_version":"1.0"},"canonical_sha256":"a06f24884bbdd3eead354210911285019c56690bf0f4d1fa514335d8d740ca70","source":{"kind":"arxiv","id":"1704.03703","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1704.03703","created_at":"2026-05-18T00:42:28Z"},{"alias_kind":"arxiv_version","alias_value":"1704.03703v1","created_at":"2026-05-18T00:42:28Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1704.03703","created_at":"2026-05-18T00:42:28Z"},{"alias_kind":"pith_short_12","alias_value":"UBXSJCCLXXJ6","created_at":"2026-05-18T12:31:46Z"},{"alias_kind":"pith_short_16","alias_value":"UBXSJCCLXXJ65LJV","created_at":"2026-05-18T12:31:46Z"},{"alias_kind":"pith_short_8","alias_value":"UBXSJCCL","created_at":"2026-05-18T12:31:46Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2017:UBXSJCCLXXJ65LJVIIIJCEUFAG","target":"record","payload":{"canonical_record":{"source":{"id":"1704.03703","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2017-04-12T11:11:23Z","cross_cats_sorted":[],"title_canon_sha256":"1a84b85412f0c34db14671d3ee7f258eb77886ac2c609b11eeca3bdf321ffbea","abstract_canon_sha256":"752d49243d3660e465a3def2a5384814b9dfef477cc597b18c456b4b5d2cefb1"},"schema_version":"1.0"},"canonical_sha256":"a06f24884bbdd3eead354210911285019c56690bf0f4d1fa514335d8d740ca70","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:42:28.923706Z","signature_b64":"Dne/2CwRfp5RDMKeg9fsapMRSRFoB7VyziBjwbByjiLvo0c/jtQqxdRD4QvY6iNVAi4mu+AMesJ14fb5T+VOBw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"a06f24884bbdd3eead354210911285019c56690bf0f4d1fa514335d8d740ca70","last_reissued_at":"2026-05-18T00:42:28.922814Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:42:28.922814Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1704.03703","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":"2026-05-18T00:42:28Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"khcrSBnqutF4GWdG9SLqAem4Js7gA5wu/crU5eFxVRAFBm9pD1BndbKoaM3zJA8QJ38tIFeDFC7uKW7fcPKoCg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-21T01:09:57.117498Z"},"content_sha256":"b9ec849552d6f0226d72eaae897f120f6f00a8bfd64bf60205ef24913069a775","schema_version":"1.0","event_id":"sha256:b9ec849552d6f0226d72eaae897f120f6f00a8bfd64bf60205ef24913069a775"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2017:UBXSJCCLXXJ65LJVIIIJCEUFAG","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Coexistence of four-band nodal rings and triply-degenerate nodal points in centrosymmetric metal diborides","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.mes-hall","authors_text":"Hui Ying Yang, Shengyuan A. Yang, Xian-Lei Sheng, Xiaoming Zhang, Zhi-Ming Yu","submitted_at":"2017-04-12T11:11:23Z","abstract_excerpt":"Topological metals with protected band-crossing points have been attracting great interest. Here we report novel topological band features in a family of metal diboride materials. Using first- principles calculations, we show that these materials are metallic, and close to Fermi level, there appears coexistence of one pair of nodal rings and one pair of triply-degenerate nodal points (TNPs). The nodal ring here is distinct from the previously studied ones in that its formation requires four entangled bands, not just two as in previous cases, hence it is termed as a four-band nodal ring (FNR). "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1704.03703","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":"2026-05-18T00:42:28Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"q2AcCVzQnfCzBhv8Gwa2VEW2+ImFEsoJP7IPv0whcFfskM37mIqx0c84c9a0OlxHDzfp58lQxnPDXpQgWrVhAg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-21T01:09:57.117844Z"},"content_sha256":"165ea77583bc33278598cb06d4ae0eb554d1f9a2408771c373c376bed48122f5","schema_version":"1.0","event_id":"sha256:165ea77583bc33278598cb06d4ae0eb554d1f9a2408771c373c376bed48122f5"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/UBXSJCCLXXJ65LJVIIIJCEUFAG/bundle.json","state_url":"https://pith.science/pith/UBXSJCCLXXJ65LJVIIIJCEUFAG/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/UBXSJCCLXXJ65LJVIIIJCEUFAG/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":"2026-06-21T01:09:57Z","links":{"resolver":"https://pith.science/pith/UBXSJCCLXXJ65LJVIIIJCEUFAG","bundle":"https://pith.science/pith/UBXSJCCLXXJ65LJVIIIJCEUFAG/bundle.json","state":"https://pith.science/pith/UBXSJCCLXXJ65LJVIIIJCEUFAG/state.json","well_known_bundle":"https://pith.science/.well-known/pith/UBXSJCCLXXJ65LJVIIIJCEUFAG/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2017:UBXSJCCLXXJ65LJVIIIJCEUFAG","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":"752d49243d3660e465a3def2a5384814b9dfef477cc597b18c456b4b5d2cefb1","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2017-04-12T11:11:23Z","title_canon_sha256":"1a84b85412f0c34db14671d3ee7f258eb77886ac2c609b11eeca3bdf321ffbea"},"schema_version":"1.0","source":{"id":"1704.03703","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1704.03703","created_at":"2026-05-18T00:42:28Z"},{"alias_kind":"arxiv_version","alias_value":"1704.03703v1","created_at":"2026-05-18T00:42:28Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1704.03703","created_at":"2026-05-18T00:42:28Z"},{"alias_kind":"pith_short_12","alias_value":"UBXSJCCLXXJ6","created_at":"2026-05-18T12:31:46Z"},{"alias_kind":"pith_short_16","alias_value":"UBXSJCCLXXJ65LJV","created_at":"2026-05-18T12:31:46Z"},{"alias_kind":"pith_short_8","alias_value":"UBXSJCCL","created_at":"2026-05-18T12:31:46Z"}],"graph_snapshots":[{"event_id":"sha256:165ea77583bc33278598cb06d4ae0eb554d1f9a2408771c373c376bed48122f5","target":"graph","created_at":"2026-05-18T00:42:28Z","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":"Topological metals with protected band-crossing points have been attracting great interest. Here we report novel topological band features in a family of metal diboride materials. Using first- principles calculations, we show that these materials are metallic, and close to Fermi level, there appears coexistence of one pair of nodal rings and one pair of triply-degenerate nodal points (TNPs). The nodal ring here is distinct from the previously studied ones in that its formation requires four entangled bands, not just two as in previous cases, hence it is termed as a four-band nodal ring (FNR). ","authors_text":"Hui Ying Yang, Shengyuan A. Yang, Xian-Lei Sheng, Xiaoming Zhang, Zhi-Ming Yu","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2017-04-12T11:11:23Z","title":"Coexistence of four-band nodal rings and triply-degenerate nodal points in centrosymmetric metal diborides"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1704.03703","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:b9ec849552d6f0226d72eaae897f120f6f00a8bfd64bf60205ef24913069a775","target":"record","created_at":"2026-05-18T00:42:28Z","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":"752d49243d3660e465a3def2a5384814b9dfef477cc597b18c456b4b5d2cefb1","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2017-04-12T11:11:23Z","title_canon_sha256":"1a84b85412f0c34db14671d3ee7f258eb77886ac2c609b11eeca3bdf321ffbea"},"schema_version":"1.0","source":{"id":"1704.03703","kind":"arxiv","version":1}},"canonical_sha256":"a06f24884bbdd3eead354210911285019c56690bf0f4d1fa514335d8d740ca70","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"a06f24884bbdd3eead354210911285019c56690bf0f4d1fa514335d8d740ca70","first_computed_at":"2026-05-18T00:42:28.922814Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:42:28.922814Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"Dne/2CwRfp5RDMKeg9fsapMRSRFoB7VyziBjwbByjiLvo0c/jtQqxdRD4QvY6iNVAi4mu+AMesJ14fb5T+VOBw==","signature_status":"signed_v1","signed_at":"2026-05-18T00:42:28.923706Z","signed_message":"canonical_sha256_bytes"},"source_id":"1704.03703","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:b9ec849552d6f0226d72eaae897f120f6f00a8bfd64bf60205ef24913069a775","sha256:165ea77583bc33278598cb06d4ae0eb554d1f9a2408771c373c376bed48122f5"],"state_sha256":"ff66fa35a93fe6e29b6ddd91dc52a2686ceba52ce18c7e2b1b01a1be13efefc5"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"n/Q89/Y29Y5bZsqL/RV8IzT6wk/m/Ng5NpFRo4Nx59lRYVZeeWjw0m7XyvNnMeAPqT/UmeTQPr89gGIrcxRcDw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-21T01:09:57.119816Z","bundle_sha256":"85d0ede36856caa2ae691a0bfc63f5770436976e3d30d9c6592fef72d1afd3c7"}}