{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2021:CHFAHL3QBRVXGF5KHLWJG7O7EK","short_pith_number":"pith:CHFAHL3Q","canonical_record":{"source":{"id":"2106.04722","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2021-06-08T22:37:23Z","cross_cats_sorted":[],"title_canon_sha256":"6239d03903db82746cc6f05a6bcba19b31b9746aedcccbcdaf56dee77d820fdf","abstract_canon_sha256":"b0351c03d1f3d57a4d81d8d11fbfbe07f3a56dacced53322c8e25e4d804ec251"},"schema_version":"1.0"},"canonical_sha256":"11ca03af700c6b7317aa3aec937ddf22b39bc12386f258d7a7e92d5fd68c1aa0","source":{"kind":"arxiv","id":"2106.04722","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2106.04722","created_at":"2026-07-05T03:55:48Z"},{"alias_kind":"arxiv_version","alias_value":"2106.04722v2","created_at":"2026-07-05T03:55:48Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2106.04722","created_at":"2026-07-05T03:55:48Z"},{"alias_kind":"pith_short_12","alias_value":"CHFAHL3QBRVX","created_at":"2026-07-05T03:55:48Z"},{"alias_kind":"pith_short_16","alias_value":"CHFAHL3QBRVXGF5K","created_at":"2026-07-05T03:55:48Z"},{"alias_kind":"pith_short_8","alias_value":"CHFAHL3Q","created_at":"2026-07-05T03:55:48Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2021:CHFAHL3QBRVXGF5KHLWJG7O7EK","target":"record","payload":{"canonical_record":{"source":{"id":"2106.04722","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2021-06-08T22:37:23Z","cross_cats_sorted":[],"title_canon_sha256":"6239d03903db82746cc6f05a6bcba19b31b9746aedcccbcdaf56dee77d820fdf","abstract_canon_sha256":"b0351c03d1f3d57a4d81d8d11fbfbe07f3a56dacced53322c8e25e4d804ec251"},"schema_version":"1.0"},"canonical_sha256":"11ca03af700c6b7317aa3aec937ddf22b39bc12386f258d7a7e92d5fd68c1aa0","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T03:55:48.230570Z","signature_b64":"lPco4oRMK7frbExtu7LwbcGls3Lc4XPAzVE4HsZDELa0C9lyXL7XOvI/EiHJ/atbLDMDKgJ+5OmJJLzMhOY6Dg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"11ca03af700c6b7317aa3aec937ddf22b39bc12386f258d7a7e92d5fd68c1aa0","last_reissued_at":"2026-07-05T03:55:48.230067Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T03:55:48.230067Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2106.04722","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":"2026-07-05T03:55:48Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"dT1Yv8oVm2voMEAKi3+0Mh5CxPYygEesiX7BMuMF3s8R7bztfSXrhnMq82oE6QXLEe4gerWYMGWUKyN56exPCQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-24T02:40:49.740896Z"},"content_sha256":"3f36a8d81b6537952ebfff62350c01ba6ae9006eca818995702389cec97bef03","schema_version":"1.0","event_id":"sha256:3f36a8d81b6537952ebfff62350c01ba6ae9006eca818995702389cec97bef03"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2021:CHFAHL3QBRVXGF5KHLWJG7O7EK","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Pauli Blockade of Tunable Two-Electron Spin and Valley States in Graphene Quantum Dots","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.mes-hall","authors_text":"Annika Kurzmann, Christopher Mittag, Chuyao Tong, Kenji Watanabe, Klaus Ensslin, Lev Ginzburg, Marius Eich, Rebekka Garreis, Samuel Jele, Takashi Taniguchi, Thomas Ihn, Wei Wister Huang","submitted_at":"2021-06-08T22:37:23Z","abstract_excerpt":"Pauli blockade mechanisms -- whereby carrier transport through quantum dots is blocked due to selection rules even when energetically allowed -- are a direct manifestation of the Pauli exclusion principle, as well as a key mechanism for manipulating and reading out spin qubits. Pauli spin blockade is well established for systems such as GaAs QDs, but is to be further explored for systems with additional degrees of freedom, such as the valley quantum numbers in carbon-based materials or silicon. Here we report experiments on coupled bilayer graphene double quantum dots, in which the spin and va"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2106.04722","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/2106.04722/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":"2026-07-05T03:55:48Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"NAz6XjOO08dXJSGC4wNqCw4Nt81ocBcQVCY52fHyoDHUnujVe1YTD+lwFZ+UpQqe5BgsPVOfgXWlx33QZ6G7Ag==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-24T02:40:49.741519Z"},"content_sha256":"11ad2cbeacc6b9d56ecf7b09e0a55ae81cc0212403076db742855e5d20fa3b35","schema_version":"1.0","event_id":"sha256:11ad2cbeacc6b9d56ecf7b09e0a55ae81cc0212403076db742855e5d20fa3b35"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/CHFAHL3QBRVXGF5KHLWJG7O7EK/bundle.json","state_url":"https://pith.science/pith/CHFAHL3QBRVXGF5KHLWJG7O7EK/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/CHFAHL3QBRVXGF5KHLWJG7O7EK/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":"2026-08-24T02:40:49Z","links":{"resolver":"https://pith.science/pith/CHFAHL3QBRVXGF5KHLWJG7O7EK","bundle":"https://pith.science/pith/CHFAHL3QBRVXGF5KHLWJG7O7EK/bundle.json","state":"https://pith.science/pith/CHFAHL3QBRVXGF5KHLWJG7O7EK/state.json","well_known_bundle":"https://pith.science/.well-known/pith/CHFAHL3QBRVXGF5KHLWJG7O7EK/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2021:CHFAHL3QBRVXGF5KHLWJG7O7EK","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":"b0351c03d1f3d57a4d81d8d11fbfbe07f3a56dacced53322c8e25e4d804ec251","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2021-06-08T22:37:23Z","title_canon_sha256":"6239d03903db82746cc6f05a6bcba19b31b9746aedcccbcdaf56dee77d820fdf"},"schema_version":"1.0","source":{"id":"2106.04722","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2106.04722","created_at":"2026-07-05T03:55:48Z"},{"alias_kind":"arxiv_version","alias_value":"2106.04722v2","created_at":"2026-07-05T03:55:48Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2106.04722","created_at":"2026-07-05T03:55:48Z"},{"alias_kind":"pith_short_12","alias_value":"CHFAHL3QBRVX","created_at":"2026-07-05T03:55:48Z"},{"alias_kind":"pith_short_16","alias_value":"CHFAHL3QBRVXGF5K","created_at":"2026-07-05T03:55:48Z"},{"alias_kind":"pith_short_8","alias_value":"CHFAHL3Q","created_at":"2026-07-05T03:55:48Z"}],"graph_snapshots":[{"event_id":"sha256:11ad2cbeacc6b9d56ecf7b09e0a55ae81cc0212403076db742855e5d20fa3b35","target":"graph","created_at":"2026-07-05T03:55:48Z","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/2106.04722/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Pauli blockade mechanisms -- whereby carrier transport through quantum dots is blocked due to selection rules even when energetically allowed -- are a direct manifestation of the Pauli exclusion principle, as well as a key mechanism for manipulating and reading out spin qubits. Pauli spin blockade is well established for systems such as GaAs QDs, but is to be further explored for systems with additional degrees of freedom, such as the valley quantum numbers in carbon-based materials or silicon. Here we report experiments on coupled bilayer graphene double quantum dots, in which the spin and va","authors_text":"Annika Kurzmann, Christopher Mittag, Chuyao Tong, Kenji Watanabe, Klaus Ensslin, Lev Ginzburg, Marius Eich, Rebekka Garreis, Samuel Jele, Takashi Taniguchi, Thomas Ihn, Wei Wister Huang","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2021-06-08T22:37:23Z","title":"Pauli Blockade of Tunable Two-Electron Spin and Valley States in Graphene Quantum Dots"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2106.04722","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":"sha256:3f36a8d81b6537952ebfff62350c01ba6ae9006eca818995702389cec97bef03","target":"record","created_at":"2026-07-05T03:55:48Z","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":"b0351c03d1f3d57a4d81d8d11fbfbe07f3a56dacced53322c8e25e4d804ec251","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2021-06-08T22:37:23Z","title_canon_sha256":"6239d03903db82746cc6f05a6bcba19b31b9746aedcccbcdaf56dee77d820fdf"},"schema_version":"1.0","source":{"id":"2106.04722","kind":"arxiv","version":2}},"canonical_sha256":"11ca03af700c6b7317aa3aec937ddf22b39bc12386f258d7a7e92d5fd68c1aa0","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"11ca03af700c6b7317aa3aec937ddf22b39bc12386f258d7a7e92d5fd68c1aa0","first_computed_at":"2026-07-05T03:55:48.230067Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T03:55:48.230067Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"lPco4oRMK7frbExtu7LwbcGls3Lc4XPAzVE4HsZDELa0C9lyXL7XOvI/EiHJ/atbLDMDKgJ+5OmJJLzMhOY6Dg==","signature_status":"signed_v1","signed_at":"2026-07-05T03:55:48.230570Z","signed_message":"canonical_sha256_bytes"},"source_id":"2106.04722","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:3f36a8d81b6537952ebfff62350c01ba6ae9006eca818995702389cec97bef03","sha256:11ad2cbeacc6b9d56ecf7b09e0a55ae81cc0212403076db742855e5d20fa3b35"],"state_sha256":"ee2bef306dba9be2bf10da1f5f8a7d72552f198ae347fc13584774071d14fbc1"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"JSMt6wE/+RrxnfGgBj0s3rPwuChjIoFaJGwijLw54nFJcA4Q2CpnwbbR7ynIR8Ch2vV/zojKhI+R6xlYsDehDQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-24T02:40:49.746500Z","bundle_sha256":"91da57a9c4f68c04f9c798f66c9e970dc589cb73ae9f108b6bd6123152943ff5"}}