{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2016:NDV6EBHMSQ2DFBV4PZFVXCUU25","short_pith_number":"pith:NDV6EBHM","canonical_record":{"source":{"id":"1607.07965","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2016-07-27T05:25:28Z","cross_cats_sorted":["cond-mat.mes-hall"],"title_canon_sha256":"0a7589a1eeb4cbada31571443cfb8276f4e91b0a3b7fb1bc943f6ee41a33257c","abstract_canon_sha256":"dc2ff6da911259ac47419f3388e018b885fb149066c26edf3a75dba285892338"},"schema_version":"1.0"},"canonical_sha256":"68ebe204ec94343286bc7e4b5b8a94d7697904b93f468cf294ca723cad16111a","source":{"kind":"arxiv","id":"1607.07965","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1607.07965","created_at":"2026-05-18T01:03:17Z"},{"alias_kind":"arxiv_version","alias_value":"1607.07965v2","created_at":"2026-05-18T01:03:17Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1607.07965","created_at":"2026-05-18T01:03:17Z"},{"alias_kind":"pith_short_12","alias_value":"NDV6EBHMSQ2D","created_at":"2026-05-18T12:30:32Z"},{"alias_kind":"pith_short_16","alias_value":"NDV6EBHMSQ2DFBV4","created_at":"2026-05-18T12:30:32Z"},{"alias_kind":"pith_short_8","alias_value":"NDV6EBHM","created_at":"2026-05-18T12:30:32Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2016:NDV6EBHMSQ2DFBV4PZFVXCUU25","target":"record","payload":{"canonical_record":{"source":{"id":"1607.07965","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2016-07-27T05:25:28Z","cross_cats_sorted":["cond-mat.mes-hall"],"title_canon_sha256":"0a7589a1eeb4cbada31571443cfb8276f4e91b0a3b7fb1bc943f6ee41a33257c","abstract_canon_sha256":"dc2ff6da911259ac47419f3388e018b885fb149066c26edf3a75dba285892338"},"schema_version":"1.0"},"canonical_sha256":"68ebe204ec94343286bc7e4b5b8a94d7697904b93f468cf294ca723cad16111a","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:03:17.833851Z","signature_b64":"7VgZortyvbrJWdHv6AFpMWEcyxB5SR4nynrm7rvibFMnmhLA18ju+XhtNnG9Ntnx9lrcyj22SG+dH6I9GsRsAQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"68ebe204ec94343286bc7e4b5b8a94d7697904b93f468cf294ca723cad16111a","last_reissued_at":"2026-05-18T01:03:17.833311Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:03:17.833311Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1607.07965","source_version":2,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T01:03:17Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Y/A41y8KJ6dY42ZSChUUZcF1zRNTB6SzYV4ln6KqE0a3sJb0f11VbgFD97HvPspvDZSW00I+qzft2HN7/ua6AA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-31T12:54:30.593966Z"},"content_sha256":"12f886150f7fd73c3eeb80255937e880c98b04b6744c4380e323bf4605ea1052","schema_version":"1.0","event_id":"sha256:12f886150f7fd73c3eeb80255937e880c98b04b6744c4380e323bf4605ea1052"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2016:NDV6EBHMSQ2DFBV4PZFVXCUU25","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Type-II Dirac fermions in the PtSe$_2$ class of transition metal dichalcogenides","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cond-mat.mes-hall"],"primary_cat":"cond-mat.mtrl-sci","authors_text":"Huaqing Huang, Shuyun Zhou, Wenhui Duan","submitted_at":"2016-07-27T05:25:28Z","abstract_excerpt":"Recently, a new \"type-II\" Weyl fermion, which exhibits exotic phenomena such as angle-dependent chiral anomaly, was discovered in a new phase of matter where electron and hole pockets contact at isolated Weyl points. [Nature \\textbf{527}, 495 (2015)] This raises an interesting question whether its counterpart, i.e., type-II \\textit{Dirac} fermion, exists in real materials. Here, we predict the existence of symmetry-protected type-II Dirac fermions in a class of transition metal dichalcogenide materials. Our first-principles calculations on PtSe$_2$ reveal its bulk type-II Dirac fermions which "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1607.07965","kind":"arxiv","version":2},"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":"2026-05-18T01:03:17Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"MV/sz3cHBQ5YpPgova6BUk5D+zHx2K+CbjCBU1BLBJ5/05GJZ8xSUAXWxpBhoAPm9CcFFnIuZ1fKCP04DB6MBA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-31T12:54:30.594691Z"},"content_sha256":"65fdc5aab8213712c3acdaf96e3ad0497d04a6f211be1c1ce9ce7e61ad20a478","schema_version":"1.0","event_id":"sha256:65fdc5aab8213712c3acdaf96e3ad0497d04a6f211be1c1ce9ce7e61ad20a478"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/NDV6EBHMSQ2DFBV4PZFVXCUU25/bundle.json","state_url":"https://pith.science/pith/NDV6EBHMSQ2DFBV4PZFVXCUU25/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/NDV6EBHMSQ2DFBV4PZFVXCUU25/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":"2026-05-31T12:54:30Z","links":{"resolver":"https://pith.science/pith/NDV6EBHMSQ2DFBV4PZFVXCUU25","bundle":"https://pith.science/pith/NDV6EBHMSQ2DFBV4PZFVXCUU25/bundle.json","state":"https://pith.science/pith/NDV6EBHMSQ2DFBV4PZFVXCUU25/state.json","well_known_bundle":"https://pith.science/.well-known/pith/NDV6EBHMSQ2DFBV4PZFVXCUU25/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2016:NDV6EBHMSQ2DFBV4PZFVXCUU25","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":"dc2ff6da911259ac47419f3388e018b885fb149066c26edf3a75dba285892338","cross_cats_sorted":["cond-mat.mes-hall"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2016-07-27T05:25:28Z","title_canon_sha256":"0a7589a1eeb4cbada31571443cfb8276f4e91b0a3b7fb1bc943f6ee41a33257c"},"schema_version":"1.0","source":{"id":"1607.07965","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1607.07965","created_at":"2026-05-18T01:03:17Z"},{"alias_kind":"arxiv_version","alias_value":"1607.07965v2","created_at":"2026-05-18T01:03:17Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1607.07965","created_at":"2026-05-18T01:03:17Z"},{"alias_kind":"pith_short_12","alias_value":"NDV6EBHMSQ2D","created_at":"2026-05-18T12:30:32Z"},{"alias_kind":"pith_short_16","alias_value":"NDV6EBHMSQ2DFBV4","created_at":"2026-05-18T12:30:32Z"},{"alias_kind":"pith_short_8","alias_value":"NDV6EBHM","created_at":"2026-05-18T12:30:32Z"}],"graph_snapshots":[{"event_id":"sha256:65fdc5aab8213712c3acdaf96e3ad0497d04a6f211be1c1ce9ce7e61ad20a478","target":"graph","created_at":"2026-05-18T01:03:17Z","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":"Recently, a new \"type-II\" Weyl fermion, which exhibits exotic phenomena such as angle-dependent chiral anomaly, was discovered in a new phase of matter where electron and hole pockets contact at isolated Weyl points. [Nature \\textbf{527}, 495 (2015)] This raises an interesting question whether its counterpart, i.e., type-II \\textit{Dirac} fermion, exists in real materials. Here, we predict the existence of symmetry-protected type-II Dirac fermions in a class of transition metal dichalcogenide materials. Our first-principles calculations on PtSe$_2$ reveal its bulk type-II Dirac fermions which ","authors_text":"Huaqing Huang, Shuyun Zhou, Wenhui Duan","cross_cats":["cond-mat.mes-hall"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2016-07-27T05:25:28Z","title":"Type-II Dirac fermions in the PtSe$_2$ class of transition metal dichalcogenides"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1607.07965","kind":"arxiv","version":2},"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":"sha256:12f886150f7fd73c3eeb80255937e880c98b04b6744c4380e323bf4605ea1052","target":"record","created_at":"2026-05-18T01:03:17Z","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":"dc2ff6da911259ac47419f3388e018b885fb149066c26edf3a75dba285892338","cross_cats_sorted":["cond-mat.mes-hall"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2016-07-27T05:25:28Z","title_canon_sha256":"0a7589a1eeb4cbada31571443cfb8276f4e91b0a3b7fb1bc943f6ee41a33257c"},"schema_version":"1.0","source":{"id":"1607.07965","kind":"arxiv","version":2}},"canonical_sha256":"68ebe204ec94343286bc7e4b5b8a94d7697904b93f468cf294ca723cad16111a","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"68ebe204ec94343286bc7e4b5b8a94d7697904b93f468cf294ca723cad16111a","first_computed_at":"2026-05-18T01:03:17.833311Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:03:17.833311Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"7VgZortyvbrJWdHv6AFpMWEcyxB5SR4nynrm7rvibFMnmhLA18ju+XhtNnG9Ntnx9lrcyj22SG+dH6I9GsRsAQ==","signature_status":"signed_v1","signed_at":"2026-05-18T01:03:17.833851Z","signed_message":"canonical_sha256_bytes"},"source_id":"1607.07965","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:12f886150f7fd73c3eeb80255937e880c98b04b6744c4380e323bf4605ea1052","sha256:65fdc5aab8213712c3acdaf96e3ad0497d04a6f211be1c1ce9ce7e61ad20a478"],"state_sha256":"dbb5ac21dc43325e6fd0daef4d8e645ae2c34e32a04f9bd8ce4ea0682de5a404"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"7N5u6dscf3xUQMSveegO8gvzsEQqPunDo5g44vN7+bLvybStdr1pUXMPZAyRBHFKh5etM7By2iIr/J6O/A85Bg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-31T12:54:30.598381Z","bundle_sha256":"bff82aaa7922251f506770ba5f1fa097dc59a162b21899ad138a9c8c816ec309"}}