{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2022:H2AWI357MR4IH5N7XEJDRS5WXV","short_pith_number":"pith:H2AWI357","canonical_record":{"source":{"id":"2207.13293","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","primary_cat":"cond-mat.supr-con","submitted_at":"2022-07-27T04:50:45Z","cross_cats_sorted":[],"title_canon_sha256":"bdaf8a9d8c39b19086d2e57da6dbbbd3bffac9b27af5c34ad3812624a146c753","abstract_canon_sha256":"d358c8740e352f71390abf036e9de077753780ebe663bff14caaae7c4064e937"},"schema_version":"1.0"},"canonical_sha256":"3e81646fbf647883f5bfb91238cbb6bd6eae75a665a3410e4c69807a8b2b7bf5","source":{"kind":"arxiv","id":"2207.13293","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2207.13293","created_at":"2026-07-05T05:10:07Z"},{"alias_kind":"arxiv_version","alias_value":"2207.13293v1","created_at":"2026-07-05T05:10:07Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2207.13293","created_at":"2026-07-05T05:10:07Z"},{"alias_kind":"pith_short_12","alias_value":"H2AWI357MR4I","created_at":"2026-07-05T05:10:07Z"},{"alias_kind":"pith_short_16","alias_value":"H2AWI357MR4IH5N7","created_at":"2026-07-05T05:10:07Z"},{"alias_kind":"pith_short_8","alias_value":"H2AWI357","created_at":"2026-07-05T05:10:07Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2022:H2AWI357MR4IH5N7XEJDRS5WXV","target":"record","payload":{"canonical_record":{"source":{"id":"2207.13293","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","primary_cat":"cond-mat.supr-con","submitted_at":"2022-07-27T04:50:45Z","cross_cats_sorted":[],"title_canon_sha256":"bdaf8a9d8c39b19086d2e57da6dbbbd3bffac9b27af5c34ad3812624a146c753","abstract_canon_sha256":"d358c8740e352f71390abf036e9de077753780ebe663bff14caaae7c4064e937"},"schema_version":"1.0"},"canonical_sha256":"3e81646fbf647883f5bfb91238cbb6bd6eae75a665a3410e4c69807a8b2b7bf5","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T05:10:07.277432Z","signature_b64":"CA0nxE+H036yKHVlVFd1n+pqqiX/2K0W9ngiUW0loWGPs0TL2K4zy+SDW8DOIfsUf6cJ0HUuOhK+dXjbUYJLDA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"3e81646fbf647883f5bfb91238cbb6bd6eae75a665a3410e4c69807a8b2b7bf5","last_reissued_at":"2026-07-05T05:10:07.276998Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T05:10:07.276998Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2207.13293","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":"2026-07-05T05:10:07Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"UKiBOEhKG6jUREMCULT5W9jgubbLomO3T3cSu31iDcn7ax1gfp94pJmJV8GvXtU0dCtEUGTW/YiSf3f7c+TEDQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-10T17:58:23.732555Z"},"content_sha256":"7f436481c2dd4e3e454972fb283933ce24b26cae3faec6fb583dd674d4f001b9","schema_version":"1.0","event_id":"sha256:7f436481c2dd4e3e454972fb283933ce24b26cae3faec6fb583dd674d4f001b9"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2022:H2AWI357MR4IH5N7XEJDRS5WXV","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Cobalt-dimer Nitrides -- a Potential Novel Family of High Temperature Superconductors","license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.supr-con","authors_text":"Jiangping Hu, Kun Jiang, Xianxian Wu, Yuhao Gu","submitted_at":"2022-07-27T04:50:45Z","abstract_excerpt":"We predict that the square lattice layer formed by [Co$_2$N$_2$]$^{2-}$ diamond-like units can host high temperature superconductivity. The layer appears in the stable ternary cobalt nitride, BaCo$_2$N$_2$. The electronic physics of the material stems from Co$_2$N$_2$ layers where the dimerized Co pairs form a square lattice. The low energy physics near Fermi energy can be described by an effective two orbital model. Without considering interlayer couplings, the two orbitals are effectively decoupled. This electronic structure satisfies the \"gene\" character proposed for unconventional high tem"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2207.13293","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/2207.13293/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":"2026-07-05T05:10:07Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"+Fn8jJ7wk4Ys4tvJvZ/CT5h79LbUx4y7kWq3ahsqYjiRmoUH2RZKm8r75/nTtBSQiOV8JHtVbGejvlfCsz3oAg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-10T17:58:23.733474Z"},"content_sha256":"06563b0c57a607cd16927ecd7af9603ca61d049e182bc1c982808fe725a86118","schema_version":"1.0","event_id":"sha256:06563b0c57a607cd16927ecd7af9603ca61d049e182bc1c982808fe725a86118"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/H2AWI357MR4IH5N7XEJDRS5WXV/bundle.json","state_url":"https://pith.science/pith/H2AWI357MR4IH5N7XEJDRS5WXV/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/H2AWI357MR4IH5N7XEJDRS5WXV/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":"2026-08-10T17:58:23Z","links":{"resolver":"https://pith.science/pith/H2AWI357MR4IH5N7XEJDRS5WXV","bundle":"https://pith.science/pith/H2AWI357MR4IH5N7XEJDRS5WXV/bundle.json","state":"https://pith.science/pith/H2AWI357MR4IH5N7XEJDRS5WXV/state.json","well_known_bundle":"https://pith.science/.well-known/pith/H2AWI357MR4IH5N7XEJDRS5WXV/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2022:H2AWI357MR4IH5N7XEJDRS5WXV","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":"d358c8740e352f71390abf036e9de077753780ebe663bff14caaae7c4064e937","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","primary_cat":"cond-mat.supr-con","submitted_at":"2022-07-27T04:50:45Z","title_canon_sha256":"bdaf8a9d8c39b19086d2e57da6dbbbd3bffac9b27af5c34ad3812624a146c753"},"schema_version":"1.0","source":{"id":"2207.13293","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2207.13293","created_at":"2026-07-05T05:10:07Z"},{"alias_kind":"arxiv_version","alias_value":"2207.13293v1","created_at":"2026-07-05T05:10:07Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2207.13293","created_at":"2026-07-05T05:10:07Z"},{"alias_kind":"pith_short_12","alias_value":"H2AWI357MR4I","created_at":"2026-07-05T05:10:07Z"},{"alias_kind":"pith_short_16","alias_value":"H2AWI357MR4IH5N7","created_at":"2026-07-05T05:10:07Z"},{"alias_kind":"pith_short_8","alias_value":"H2AWI357","created_at":"2026-07-05T05:10:07Z"}],"graph_snapshots":[{"event_id":"sha256:06563b0c57a607cd16927ecd7af9603ca61d049e182bc1c982808fe725a86118","target":"graph","created_at":"2026-07-05T05:10:07Z","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/2207.13293/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We predict that the square lattice layer formed by [Co$_2$N$_2$]$^{2-}$ diamond-like units can host high temperature superconductivity. The layer appears in the stable ternary cobalt nitride, BaCo$_2$N$_2$. The electronic physics of the material stems from Co$_2$N$_2$ layers where the dimerized Co pairs form a square lattice. The low energy physics near Fermi energy can be described by an effective two orbital model. Without considering interlayer couplings, the two orbitals are effectively decoupled. This electronic structure satisfies the \"gene\" character proposed for unconventional high tem","authors_text":"Jiangping Hu, Kun Jiang, Xianxian Wu, Yuhao Gu","cross_cats":[],"headline":"","license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","primary_cat":"cond-mat.supr-con","submitted_at":"2022-07-27T04:50:45Z","title":"Cobalt-dimer Nitrides -- a Potential Novel Family of High Temperature Superconductors"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2207.13293","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":"sha256:7f436481c2dd4e3e454972fb283933ce24b26cae3faec6fb583dd674d4f001b9","target":"record","created_at":"2026-07-05T05:10:07Z","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":"d358c8740e352f71390abf036e9de077753780ebe663bff14caaae7c4064e937","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","primary_cat":"cond-mat.supr-con","submitted_at":"2022-07-27T04:50:45Z","title_canon_sha256":"bdaf8a9d8c39b19086d2e57da6dbbbd3bffac9b27af5c34ad3812624a146c753"},"schema_version":"1.0","source":{"id":"2207.13293","kind":"arxiv","version":1}},"canonical_sha256":"3e81646fbf647883f5bfb91238cbb6bd6eae75a665a3410e4c69807a8b2b7bf5","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"3e81646fbf647883f5bfb91238cbb6bd6eae75a665a3410e4c69807a8b2b7bf5","first_computed_at":"2026-07-05T05:10:07.276998Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T05:10:07.276998Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"CA0nxE+H036yKHVlVFd1n+pqqiX/2K0W9ngiUW0loWGPs0TL2K4zy+SDW8DOIfsUf6cJ0HUuOhK+dXjbUYJLDA==","signature_status":"signed_v1","signed_at":"2026-07-05T05:10:07.277432Z","signed_message":"canonical_sha256_bytes"},"source_id":"2207.13293","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:7f436481c2dd4e3e454972fb283933ce24b26cae3faec6fb583dd674d4f001b9","sha256:06563b0c57a607cd16927ecd7af9603ca61d049e182bc1c982808fe725a86118"],"state_sha256":"abf117521a1056ddc478ce731f6049799ac7c5d8f30a40de9b6b54c426624572"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"9P/yGkAVSBpn5UISnpWoTbcL9oo+l+rx0VWXkpZh6UyJHGMUPkX0jplPDA0cMmnuFuJe70aadju7yCLTGBlnAw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-10T17:58:23.739961Z","bundle_sha256":"f924c4b6f8181e2998aee0864b6a71b57e4229157dca92badda8e0dfbe6b2da6"}}