{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2020:S2BSG5VNCV7W2IZONJ5F5LBQ46","short_pith_number":"pith:S2BSG5VN","canonical_record":{"source":{"id":"2001.08731","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2020-01-23T18:43:53Z","cross_cats_sorted":[],"title_canon_sha256":"8cd4a17be2c67b77595b40a44958124cf0d1126b03138e3ab76052dc772e147d","abstract_canon_sha256":"5d3ba0c3bb472a3f0c15c55a38bcfdbf1a8ca580f590f33819b24fd77f2067bf"},"schema_version":"1.0"},"canonical_sha256":"96832376ad157f6d232e6a7a5eac30e7aadcc591c100b72648092e106b344d6b","source":{"kind":"arxiv","id":"2001.08731","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2001.08731","created_at":"2026-07-05T01:51:27Z"},{"alias_kind":"arxiv_version","alias_value":"2001.08731v1","created_at":"2026-07-05T01:51:27Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2001.08731","created_at":"2026-07-05T01:51:27Z"},{"alias_kind":"pith_short_12","alias_value":"S2BSG5VNCV7W","created_at":"2026-07-05T01:51:27Z"},{"alias_kind":"pith_short_16","alias_value":"S2BSG5VNCV7W2IZO","created_at":"2026-07-05T01:51:27Z"},{"alias_kind":"pith_short_8","alias_value":"S2BSG5VN","created_at":"2026-07-05T01:51:27Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2020:S2BSG5VNCV7W2IZONJ5F5LBQ46","target":"record","payload":{"canonical_record":{"source":{"id":"2001.08731","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2020-01-23T18:43:53Z","cross_cats_sorted":[],"title_canon_sha256":"8cd4a17be2c67b77595b40a44958124cf0d1126b03138e3ab76052dc772e147d","abstract_canon_sha256":"5d3ba0c3bb472a3f0c15c55a38bcfdbf1a8ca580f590f33819b24fd77f2067bf"},"schema_version":"1.0"},"canonical_sha256":"96832376ad157f6d232e6a7a5eac30e7aadcc591c100b72648092e106b344d6b","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T01:51:27.681165Z","signature_b64":"HbUyPBUPqiTz2IjNZiGE4BvniO/h57AO+8yalhcVKl+kg70M92wjeJCtoE+PMhidfqdjipc4BBSIy4kMT90BBA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"96832376ad157f6d232e6a7a5eac30e7aadcc591c100b72648092e106b344d6b","last_reissued_at":"2026-07-05T01:51:27.680724Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T01:51:27.680724Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2001.08731","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":"2026-07-05T01:51:27Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"GL28gaVHxXLnHQzlTW6DEizkSh+tujgZmqzgWKsjPA5hphxrj6aotswTothS4rnbz2KVAHZxlmPHCctbeDfhCg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-04T23:04:42.360248Z"},"content_sha256":"0c6a7330ae1d5725338bb302cd877104bd15ddff44949c02fc06598b7079a9f1","schema_version":"1.0","event_id":"sha256:0c6a7330ae1d5725338bb302cd877104bd15ddff44949c02fc06598b7079a9f1"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2020:S2BSG5VNCV7W2IZONJ5F5LBQ46","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Transition-metal phthalocyanine monolayers as new Chern insulators","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.mtrl-sci","authors_text":"Jie Li, Lei Gu, Ruqian Wu","submitted_at":"2020-01-23T18:43:53Z","abstract_excerpt":"To explore new materials for the realization of the quantum anomalous Hall effect (QAHE), we studied electronic, magnetic and topological properties of transition-metal phthalocyanine (TMPc) monolayers in a square lattice. Many of them have large topologically nontrivial band gaps and integer Chern numbers. In particular, the Fermi level of MoPc lies right in the band gap (Eg=8.1 meV) and has large magnetic anisotropy energy (MAE=2.0 meV per Mo atom) and a Curie temperature of 16 K, showing its usefulness for applications. The presence of topologically protected edge state in a MoPc nanoribbon"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2001.08731","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/2001.08731/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":"2026-07-05T01:51:27Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Ng/I5DvQyaMiWvxhPyXXpxmU5/52ClXn/3iVM8N9B7TrfUdRNcRpAndkoo9EuM1W1wTGGyCd6u0LMiT0kTpjDg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-04T23:04:42.361168Z"},"content_sha256":"fbb23c02317d00f93d4918f9bed8d732cac692eb163da4a07190329a48e00191","schema_version":"1.0","event_id":"sha256:fbb23c02317d00f93d4918f9bed8d732cac692eb163da4a07190329a48e00191"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/S2BSG5VNCV7W2IZONJ5F5LBQ46/bundle.json","state_url":"https://pith.science/pith/S2BSG5VNCV7W2IZONJ5F5LBQ46/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/S2BSG5VNCV7W2IZONJ5F5LBQ46/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":"2026-08-04T23:04:42Z","links":{"resolver":"https://pith.science/pith/S2BSG5VNCV7W2IZONJ5F5LBQ46","bundle":"https://pith.science/pith/S2BSG5VNCV7W2IZONJ5F5LBQ46/bundle.json","state":"https://pith.science/pith/S2BSG5VNCV7W2IZONJ5F5LBQ46/state.json","well_known_bundle":"https://pith.science/.well-known/pith/S2BSG5VNCV7W2IZONJ5F5LBQ46/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2020:S2BSG5VNCV7W2IZONJ5F5LBQ46","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":"5d3ba0c3bb472a3f0c15c55a38bcfdbf1a8ca580f590f33819b24fd77f2067bf","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2020-01-23T18:43:53Z","title_canon_sha256":"8cd4a17be2c67b77595b40a44958124cf0d1126b03138e3ab76052dc772e147d"},"schema_version":"1.0","source":{"id":"2001.08731","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2001.08731","created_at":"2026-07-05T01:51:27Z"},{"alias_kind":"arxiv_version","alias_value":"2001.08731v1","created_at":"2026-07-05T01:51:27Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2001.08731","created_at":"2026-07-05T01:51:27Z"},{"alias_kind":"pith_short_12","alias_value":"S2BSG5VNCV7W","created_at":"2026-07-05T01:51:27Z"},{"alias_kind":"pith_short_16","alias_value":"S2BSG5VNCV7W2IZO","created_at":"2026-07-05T01:51:27Z"},{"alias_kind":"pith_short_8","alias_value":"S2BSG5VN","created_at":"2026-07-05T01:51:27Z"}],"graph_snapshots":[{"event_id":"sha256:fbb23c02317d00f93d4918f9bed8d732cac692eb163da4a07190329a48e00191","target":"graph","created_at":"2026-07-05T01:51:27Z","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/2001.08731/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"To explore new materials for the realization of the quantum anomalous Hall effect (QAHE), we studied electronic, magnetic and topological properties of transition-metal phthalocyanine (TMPc) monolayers in a square lattice. Many of them have large topologically nontrivial band gaps and integer Chern numbers. In particular, the Fermi level of MoPc lies right in the band gap (Eg=8.1 meV) and has large magnetic anisotropy energy (MAE=2.0 meV per Mo atom) and a Curie temperature of 16 K, showing its usefulness for applications. The presence of topologically protected edge state in a MoPc nanoribbon","authors_text":"Jie Li, Lei Gu, Ruqian Wu","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2020-01-23T18:43:53Z","title":"Transition-metal phthalocyanine monolayers as new Chern insulators"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2001.08731","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":"sha256:0c6a7330ae1d5725338bb302cd877104bd15ddff44949c02fc06598b7079a9f1","target":"record","created_at":"2026-07-05T01:51:27Z","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":"5d3ba0c3bb472a3f0c15c55a38bcfdbf1a8ca580f590f33819b24fd77f2067bf","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2020-01-23T18:43:53Z","title_canon_sha256":"8cd4a17be2c67b77595b40a44958124cf0d1126b03138e3ab76052dc772e147d"},"schema_version":"1.0","source":{"id":"2001.08731","kind":"arxiv","version":1}},"canonical_sha256":"96832376ad157f6d232e6a7a5eac30e7aadcc591c100b72648092e106b344d6b","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"96832376ad157f6d232e6a7a5eac30e7aadcc591c100b72648092e106b344d6b","first_computed_at":"2026-07-05T01:51:27.680724Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T01:51:27.680724Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"HbUyPBUPqiTz2IjNZiGE4BvniO/h57AO+8yalhcVKl+kg70M92wjeJCtoE+PMhidfqdjipc4BBSIy4kMT90BBA==","signature_status":"signed_v1","signed_at":"2026-07-05T01:51:27.681165Z","signed_message":"canonical_sha256_bytes"},"source_id":"2001.08731","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:0c6a7330ae1d5725338bb302cd877104bd15ddff44949c02fc06598b7079a9f1","sha256:fbb23c02317d00f93d4918f9bed8d732cac692eb163da4a07190329a48e00191"],"state_sha256":"5cd901c670012c43787d787a4862954933ea09af61023d2a4165b29935fbbc4d"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"ctBR9WlUNDEU9N+HSiHa+aojLOkbyMeFBLquzaBnAQQa8irdzxjgNKXKxpG3Sl4nI3NPm7+8V9ATmIN7ZtAqBg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-04T23:04:42.369066Z","bundle_sha256":"1c4dffd940dd9044b13e943426fb563c54c975c17cec4ccb77727520e05db601"}}