{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2020:WW2ZW3E4WGTQIYPDKKWGL4N2WG","short_pith_number":"pith:WW2ZW3E4","canonical_record":{"source":{"id":"2007.00007","kind":"arxiv","version":4},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2020-06-30T18:00:00Z","cross_cats_sorted":["cond-mat.supr-con"],"title_canon_sha256":"3c7027f58a2e519803ad297c43eda50c120e487f753fa813d6afe66e660b1472","abstract_canon_sha256":"99297643237ca42d938bedd756135a0f372b58675148adae6491e6b095339d37"},"schema_version":"1.0"},"canonical_sha256":"b5b59b6c9cb1a70461e352ac65f1bab19e9d8f45c25ee413fe18e0685542e361","source":{"kind":"arxiv","id":"2007.00007","version":4},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2007.00007","created_at":"2026-07-05T01:58:41Z"},{"alias_kind":"arxiv_version","alias_value":"2007.00007v4","created_at":"2026-07-05T01:58:41Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2007.00007","created_at":"2026-07-05T01:58:41Z"},{"alias_kind":"pith_short_12","alias_value":"WW2ZW3E4WGTQ","created_at":"2026-07-05T01:58:41Z"},{"alias_kind":"pith_short_16","alias_value":"WW2ZW3E4WGTQIYPD","created_at":"2026-07-05T01:58:41Z"},{"alias_kind":"pith_short_8","alias_value":"WW2ZW3E4","created_at":"2026-07-05T01:58:41Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2020:WW2ZW3E4WGTQIYPDKKWGL4N2WG","target":"record","payload":{"canonical_record":{"source":{"id":"2007.00007","kind":"arxiv","version":4},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2020-06-30T18:00:00Z","cross_cats_sorted":["cond-mat.supr-con"],"title_canon_sha256":"3c7027f58a2e519803ad297c43eda50c120e487f753fa813d6afe66e660b1472","abstract_canon_sha256":"99297643237ca42d938bedd756135a0f372b58675148adae6491e6b095339d37"},"schema_version":"1.0"},"canonical_sha256":"b5b59b6c9cb1a70461e352ac65f1bab19e9d8f45c25ee413fe18e0685542e361","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T01:58:41.443147Z","signature_b64":"ueEbb399kK9hmJGbwILI7xOR4pKVqAi4gS4ttamtWn4XluZSqt2N4/8rQ4xJmjWw8MIh1UOG1R3hSciSIm5uCg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"b5b59b6c9cb1a70461e352ac65f1bab19e9d8f45c25ee413fe18e0685542e361","last_reissued_at":"2026-07-05T01:58:41.442681Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T01:58:41.442681Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2007.00007","source_version":4,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-07-05T01:58:41Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"PjUz9qdGF8waK7T34pVWCTuK+f2eO6PmYqdVScO5KfMt6ScxXO+sAA4gJ2eVnEUoSE1Y6MrKnbLlWJXMdF1tAA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-10T20:13:39.001565Z"},"content_sha256":"c83bd648ece4c2b00898acd4661e7cbfbff949cebae21f08471a8ea7c480e8b5","schema_version":"1.0","event_id":"sha256:c83bd648ece4c2b00898acd4661e7cbfbff949cebae21f08471a8ea7c480e8b5"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2020:WW2ZW3E4WGTQIYPDKKWGL4N2WG","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Superconductivity, correlated insulators, and Wess-Zumino-Witten terms in twisted bilayer graphene","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cond-mat.supr-con"],"primary_cat":"cond-mat.str-el","authors_text":"Maine Christos, Mathias S. Scheurer, Subir Sachdev","submitted_at":"2020-06-30T18:00:00Z","abstract_excerpt":"Recent experiments on twisted bilayer graphene have shown a high-temperature parent state with massless Dirac fermions and broken electronic flavor symmetry; superconductivity and correlated insulators emerge from this parent state at lower temperatures. We propose that the superconducting and correlated insulating orders are connected by Wess-Zumino-Witten terms, so that defects of one order contain quanta of another order and skyrmion fluctuations of the correlated insulator are a \"mechanism\" for superconductivity. We present a comprehensive listing of plausible low-temperature orders, and t"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2007.00007","kind":"arxiv","version":4},"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/2007.00007/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":"2026-07-05T01:58:41Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"B70f9gkMgjr+kbn2pXhI2DuJ2W8qRJ7o+Guqu0zFL3yFIl/CQrXtXp4JL7nrHRyuceRt/QkxNAeprq5fuFw/Cg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-10T20:13:39.002302Z"},"content_sha256":"ca843a2106f3dfb94f550f83a875aa266159125ebbbbb7314e199ab8174a1705","schema_version":"1.0","event_id":"sha256:ca843a2106f3dfb94f550f83a875aa266159125ebbbbb7314e199ab8174a1705"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/WW2ZW3E4WGTQIYPDKKWGL4N2WG/bundle.json","state_url":"https://pith.science/pith/WW2ZW3E4WGTQIYPDKKWGL4N2WG/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/WW2ZW3E4WGTQIYPDKKWGL4N2WG/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":"2026-08-10T20:13:39Z","links":{"resolver":"https://pith.science/pith/WW2ZW3E4WGTQIYPDKKWGL4N2WG","bundle":"https://pith.science/pith/WW2ZW3E4WGTQIYPDKKWGL4N2WG/bundle.json","state":"https://pith.science/pith/WW2ZW3E4WGTQIYPDKKWGL4N2WG/state.json","well_known_bundle":"https://pith.science/.well-known/pith/WW2ZW3E4WGTQIYPDKKWGL4N2WG/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2020:WW2ZW3E4WGTQIYPDKKWGL4N2WG","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":"99297643237ca42d938bedd756135a0f372b58675148adae6491e6b095339d37","cross_cats_sorted":["cond-mat.supr-con"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2020-06-30T18:00:00Z","title_canon_sha256":"3c7027f58a2e519803ad297c43eda50c120e487f753fa813d6afe66e660b1472"},"schema_version":"1.0","source":{"id":"2007.00007","kind":"arxiv","version":4}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2007.00007","created_at":"2026-07-05T01:58:41Z"},{"alias_kind":"arxiv_version","alias_value":"2007.00007v4","created_at":"2026-07-05T01:58:41Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2007.00007","created_at":"2026-07-05T01:58:41Z"},{"alias_kind":"pith_short_12","alias_value":"WW2ZW3E4WGTQ","created_at":"2026-07-05T01:58:41Z"},{"alias_kind":"pith_short_16","alias_value":"WW2ZW3E4WGTQIYPD","created_at":"2026-07-05T01:58:41Z"},{"alias_kind":"pith_short_8","alias_value":"WW2ZW3E4","created_at":"2026-07-05T01:58:41Z"}],"graph_snapshots":[{"event_id":"sha256:ca843a2106f3dfb94f550f83a875aa266159125ebbbbb7314e199ab8174a1705","target":"graph","created_at":"2026-07-05T01:58:41Z","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"},"integrity":{"available":true,"clean":true,"detectors_run":[],"endpoint":"/pith/2007.00007/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Recent experiments on twisted bilayer graphene have shown a high-temperature parent state with massless Dirac fermions and broken electronic flavor symmetry; superconductivity and correlated insulators emerge from this parent state at lower temperatures. We propose that the superconducting and correlated insulating orders are connected by Wess-Zumino-Witten terms, so that defects of one order contain quanta of another order and skyrmion fluctuations of the correlated insulator are a \"mechanism\" for superconductivity. We present a comprehensive listing of plausible low-temperature orders, and t","authors_text":"Maine Christos, Mathias S. Scheurer, Subir Sachdev","cross_cats":["cond-mat.supr-con"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2020-06-30T18:00:00Z","title":"Superconductivity, correlated insulators, and Wess-Zumino-Witten terms in twisted bilayer graphene"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2007.00007","kind":"arxiv","version":4},"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:c83bd648ece4c2b00898acd4661e7cbfbff949cebae21f08471a8ea7c480e8b5","target":"record","created_at":"2026-07-05T01:58:41Z","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":"99297643237ca42d938bedd756135a0f372b58675148adae6491e6b095339d37","cross_cats_sorted":["cond-mat.supr-con"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2020-06-30T18:00:00Z","title_canon_sha256":"3c7027f58a2e519803ad297c43eda50c120e487f753fa813d6afe66e660b1472"},"schema_version":"1.0","source":{"id":"2007.00007","kind":"arxiv","version":4}},"canonical_sha256":"b5b59b6c9cb1a70461e352ac65f1bab19e9d8f45c25ee413fe18e0685542e361","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"b5b59b6c9cb1a70461e352ac65f1bab19e9d8f45c25ee413fe18e0685542e361","first_computed_at":"2026-07-05T01:58:41.442681Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T01:58:41.442681Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"ueEbb399kK9hmJGbwILI7xOR4pKVqAi4gS4ttamtWn4XluZSqt2N4/8rQ4xJmjWw8MIh1UOG1R3hSciSIm5uCg==","signature_status":"signed_v1","signed_at":"2026-07-05T01:58:41.443147Z","signed_message":"canonical_sha256_bytes"},"source_id":"2007.00007","source_kind":"arxiv","source_version":4}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:c83bd648ece4c2b00898acd4661e7cbfbff949cebae21f08471a8ea7c480e8b5","sha256:ca843a2106f3dfb94f550f83a875aa266159125ebbbbb7314e199ab8174a1705"],"state_sha256":"dc7cc6a1e43bd0da8176c2708973233d4d9c13b9f2977f9102456ffe60df4765"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"4Y7qDhNy4YRSaDXV2bY4YF7S0aTSqD4B7sxafs7HKSlxhggv/6Xfuzqe7czS2AkQ1CGKOycyXxgNo/nm8e53Dg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-10T20:13:39.008511Z","bundle_sha256":"64de6364c3c245c54f3fcce133b5750f7bf987f8a53df2b7420c40cf6270f5ad"}}