{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2022:KAZNMSJ6HUVZGQ32OH76TQBXBJ","short_pith_number":"pith:KAZNMSJ6","canonical_record":{"source":{"id":"2206.11304","kind":"arxiv","version":2},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2022-06-22T18:15:28Z","cross_cats_sorted":["cond-mat.str-el"],"title_canon_sha256":"5a2d3964aadf828cccd5a9b070acedfb8fda938cb90ca878a04ff17db9b828d0","abstract_canon_sha256":"1646c4e2f7dab4525a26c346ca3b0ac3bcd3c508a0ff3676968712e24443172b"},"schema_version":"1.0"},"canonical_sha256":"5032d6493e3d2b93437a71ffe9c0370a4b52aa1435c70383bfeb710c2449ee7c","source":{"kind":"arxiv","id":"2206.11304","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2206.11304","created_at":"2026-07-05T07:11:12Z"},{"alias_kind":"arxiv_version","alias_value":"2206.11304v2","created_at":"2026-07-05T07:11:12Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2206.11304","created_at":"2026-07-05T07:11:12Z"},{"alias_kind":"pith_short_12","alias_value":"KAZNMSJ6HUVZ","created_at":"2026-07-05T07:11:12Z"},{"alias_kind":"pith_short_16","alias_value":"KAZNMSJ6HUVZGQ32","created_at":"2026-07-05T07:11:12Z"},{"alias_kind":"pith_short_8","alias_value":"KAZNMSJ6","created_at":"2026-07-05T07:11:12Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2022:KAZNMSJ6HUVZGQ32OH76TQBXBJ","target":"record","payload":{"canonical_record":{"source":{"id":"2206.11304","kind":"arxiv","version":2},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2022-06-22T18:15:28Z","cross_cats_sorted":["cond-mat.str-el"],"title_canon_sha256":"5a2d3964aadf828cccd5a9b070acedfb8fda938cb90ca878a04ff17db9b828d0","abstract_canon_sha256":"1646c4e2f7dab4525a26c346ca3b0ac3bcd3c508a0ff3676968712e24443172b"},"schema_version":"1.0"},"canonical_sha256":"5032d6493e3d2b93437a71ffe9c0370a4b52aa1435c70383bfeb710c2449ee7c","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T07:11:12.277798Z","signature_b64":"Tg8wfgCdYEBTX+2tYtvvjRuiyO3M8EXgSA3c/WeSlowJ/r1UDP1KNLv0rsVl17vyTc9rsZ51REbdsJcpuv3jDQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"5032d6493e3d2b93437a71ffe9c0370a4b52aa1435c70383bfeb710c2449ee7c","last_reissued_at":"2026-07-05T07:11:12.277278Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T07:11:12.277278Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2206.11304","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":"2026-07-05T07:11:12Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"OISw4YvCViIEoIeBsV38T+jpTHhK3rWDgRY5bvN4FFzoFt9N6arjgNGVGGgzbEL2mlr6mvJMRW/C780GedXtCQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-15T15:00:18.867604Z"},"content_sha256":"c3f8a456a714eaad65943ca124ce758ddf05bdbe171f8b01f1439c6097c739b9","schema_version":"1.0","event_id":"sha256:c3f8a456a714eaad65943ca124ce758ddf05bdbe171f8b01f1439c6097c739b9"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2022:KAZNMSJ6HUVZGQ32OH76TQBXBJ","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Spin skyrmion gaps as signatures of strong-coupling insulators in magic-angle twisted bilayer graphene","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":["cond-mat.str-el"],"primary_cat":"cond-mat.mes-hall","authors_text":"Benjamin A. Foutty, Benjamin E. Feldman, Jiachen Yu, Kenji Watanabe, Mark E. Barber, Siddharth A. Parameswaran, Takashi Taniguchi, Yves H. Kwan, Zhi-Xun Shen","submitted_at":"2022-06-22T18:15:28Z","abstract_excerpt":"The flat electronic bands in magic-angle twisted bilayer graphene (MATBG) host a variety of correlated insulating ground states, many of which are predicted to support charged excitations with topologically non-trivial spin and/or valley skyrmion textures. However, it has remained challenging to experimentally address their ground state order and excitations, both because some of the proposed states do not couple directly to experimental probes, and because they are highly sensitive to spatial inhomogeneities in real samples. Here, using a scanning single-electron transistor, we observe thermo"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2206.11304","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2206.11304/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":"2026-07-05T07:11:12Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"jNDvZ7JQfqOP+Epe/tBLa6xJ5aG7NH9MycwRt//+v7ITdyK+Z8QVzNSfA5bwc7U+Tz35I+qPqo/6wxYUvaO0CQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-15T15:00:18.868260Z"},"content_sha256":"048e8437b451932bff0db846cf8600df466ebe93e1044d066a9d3efcb12b2c1b","schema_version":"1.0","event_id":"sha256:048e8437b451932bff0db846cf8600df466ebe93e1044d066a9d3efcb12b2c1b"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/KAZNMSJ6HUVZGQ32OH76TQBXBJ/bundle.json","state_url":"https://pith.science/pith/KAZNMSJ6HUVZGQ32OH76TQBXBJ/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/KAZNMSJ6HUVZGQ32OH76TQBXBJ/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":"2026-08-15T15:00:18Z","links":{"resolver":"https://pith.science/pith/KAZNMSJ6HUVZGQ32OH76TQBXBJ","bundle":"https://pith.science/pith/KAZNMSJ6HUVZGQ32OH76TQBXBJ/bundle.json","state":"https://pith.science/pith/KAZNMSJ6HUVZGQ32OH76TQBXBJ/state.json","well_known_bundle":"https://pith.science/.well-known/pith/KAZNMSJ6HUVZGQ32OH76TQBXBJ/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2022:KAZNMSJ6HUVZGQ32OH76TQBXBJ","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":"1646c4e2f7dab4525a26c346ca3b0ac3bcd3c508a0ff3676968712e24443172b","cross_cats_sorted":["cond-mat.str-el"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2022-06-22T18:15:28Z","title_canon_sha256":"5a2d3964aadf828cccd5a9b070acedfb8fda938cb90ca878a04ff17db9b828d0"},"schema_version":"1.0","source":{"id":"2206.11304","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2206.11304","created_at":"2026-07-05T07:11:12Z"},{"alias_kind":"arxiv_version","alias_value":"2206.11304v2","created_at":"2026-07-05T07:11:12Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2206.11304","created_at":"2026-07-05T07:11:12Z"},{"alias_kind":"pith_short_12","alias_value":"KAZNMSJ6HUVZ","created_at":"2026-07-05T07:11:12Z"},{"alias_kind":"pith_short_16","alias_value":"KAZNMSJ6HUVZGQ32","created_at":"2026-07-05T07:11:12Z"},{"alias_kind":"pith_short_8","alias_value":"KAZNMSJ6","created_at":"2026-07-05T07:11:12Z"}],"graph_snapshots":[{"event_id":"sha256:048e8437b451932bff0db846cf8600df466ebe93e1044d066a9d3efcb12b2c1b","target":"graph","created_at":"2026-07-05T07:11:12Z","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/2206.11304/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"The flat electronic bands in magic-angle twisted bilayer graphene (MATBG) host a variety of correlated insulating ground states, many of which are predicted to support charged excitations with topologically non-trivial spin and/or valley skyrmion textures. However, it has remained challenging to experimentally address their ground state order and excitations, both because some of the proposed states do not couple directly to experimental probes, and because they are highly sensitive to spatial inhomogeneities in real samples. Here, using a scanning single-electron transistor, we observe thermo","authors_text":"Benjamin A. Foutty, Benjamin E. Feldman, Jiachen Yu, Kenji Watanabe, Mark E. Barber, Siddharth A. Parameswaran, Takashi Taniguchi, Yves H. Kwan, Zhi-Xun Shen","cross_cats":["cond-mat.str-el"],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2022-06-22T18:15:28Z","title":"Spin skyrmion gaps as signatures of strong-coupling insulators in magic-angle twisted bilayer graphene"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2206.11304","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:c3f8a456a714eaad65943ca124ce758ddf05bdbe171f8b01f1439c6097c739b9","target":"record","created_at":"2026-07-05T07:11:12Z","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":"1646c4e2f7dab4525a26c346ca3b0ac3bcd3c508a0ff3676968712e24443172b","cross_cats_sorted":["cond-mat.str-el"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2022-06-22T18:15:28Z","title_canon_sha256":"5a2d3964aadf828cccd5a9b070acedfb8fda938cb90ca878a04ff17db9b828d0"},"schema_version":"1.0","source":{"id":"2206.11304","kind":"arxiv","version":2}},"canonical_sha256":"5032d6493e3d2b93437a71ffe9c0370a4b52aa1435c70383bfeb710c2449ee7c","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"5032d6493e3d2b93437a71ffe9c0370a4b52aa1435c70383bfeb710c2449ee7c","first_computed_at":"2026-07-05T07:11:12.277278Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T07:11:12.277278Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"Tg8wfgCdYEBTX+2tYtvvjRuiyO3M8EXgSA3c/WeSlowJ/r1UDP1KNLv0rsVl17vyTc9rsZ51REbdsJcpuv3jDQ==","signature_status":"signed_v1","signed_at":"2026-07-05T07:11:12.277798Z","signed_message":"canonical_sha256_bytes"},"source_id":"2206.11304","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:c3f8a456a714eaad65943ca124ce758ddf05bdbe171f8b01f1439c6097c739b9","sha256:048e8437b451932bff0db846cf8600df466ebe93e1044d066a9d3efcb12b2c1b"],"state_sha256":"50e9d4c07a1644135cedef2d804b0556e7f994cb31fedd7c9103ccb422fef64e"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"oMh+3E9ei/eTF4oGDY650bXH9ZDuKxGP5GaB7KEnOWohy5FdAln53bzNc3yRn9Y+508vw1OQjiOFOgJbT2uPBA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-15T15:00:18.876963Z","bundle_sha256":"75c9015c1e58503e57e75d95edd84ae146aa1ec4e97c85a1cc39e261a6dda8cd"}}