{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2022:YVCSE2RA3A6HPMLB2JJME7OFP2","short_pith_number":"pith:YVCSE2RA","canonical_record":{"source":{"id":"2208.11505","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"quant-ph","submitted_at":"2022-08-24T12:55:51Z","cross_cats_sorted":["cond-mat.mes-hall"],"title_canon_sha256":"89d106c3599b5be7b3d2dd5eb4eaf3d6900c37cea3d45584671cda5d0bd8085d","abstract_canon_sha256":"aff2efc6ae97db2059f04419426b14299ea0350c91d07aa924d4c55c1c14f747"},"schema_version":"1.0"},"canonical_sha256":"c545226a20d83c77b161d252c27dc57eb5f4ab5a78aa4f7582c4a5e79e1977a7","source":{"kind":"arxiv","id":"2208.11505","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2208.11505","created_at":"2026-07-05T06:37:29Z"},{"alias_kind":"arxiv_version","alias_value":"2208.11505v1","created_at":"2026-07-05T06:37:29Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2208.11505","created_at":"2026-07-05T06:37:29Z"},{"alias_kind":"pith_short_12","alias_value":"YVCSE2RA3A6H","created_at":"2026-07-05T06:37:29Z"},{"alias_kind":"pith_short_16","alias_value":"YVCSE2RA3A6HPMLB","created_at":"2026-07-05T06:37:29Z"},{"alias_kind":"pith_short_8","alias_value":"YVCSE2RA","created_at":"2026-07-05T06:37:29Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2022:YVCSE2RA3A6HPMLB2JJME7OFP2","target":"record","payload":{"canonical_record":{"source":{"id":"2208.11505","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"quant-ph","submitted_at":"2022-08-24T12:55:51Z","cross_cats_sorted":["cond-mat.mes-hall"],"title_canon_sha256":"89d106c3599b5be7b3d2dd5eb4eaf3d6900c37cea3d45584671cda5d0bd8085d","abstract_canon_sha256":"aff2efc6ae97db2059f04419426b14299ea0350c91d07aa924d4c55c1c14f747"},"schema_version":"1.0"},"canonical_sha256":"c545226a20d83c77b161d252c27dc57eb5f4ab5a78aa4f7582c4a5e79e1977a7","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T06:37:29.645256Z","signature_b64":"oQbDQjyHlGV5HAG4wACaQboSUFGNba19eaBdACi29Q0RV+dk71vZ5kxM2S1Ol6+GP6Wm8l/h4+J5GQGZhqFSBQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"c545226a20d83c77b161d252c27dc57eb5f4ab5a78aa4f7582c4a5e79e1977a7","last_reissued_at":"2026-07-05T06:37:29.644850Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T06:37:29.644850Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2208.11505","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":"2026-07-05T06:37:29Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Q2VLrlci6/O86Wi0Ha17lcVUM/c841jB5vJHHWIlJcc18lf8bOfm9mwNqipZ7G07i/F5pBIFkYEDIAjg7T5fDQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-09T06:48:41.659965Z"},"content_sha256":"e728eceb103f83bf6b00a30362924d0da88d36ee088c65b62dfab1da161b7349","schema_version":"1.0","event_id":"sha256:e728eceb103f83bf6b00a30362924d0da88d36ee088c65b62dfab1da161b7349"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2022:YVCSE2RA3A6HPMLB2JJME7OFP2","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Probing resonating valence bonds on a programmable germanium quantum simulator","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":["cond-mat.mes-hall"],"primary_cat":"quant-ph","authors_text":"Amir Sammak, Chien-An Wang, Corentin D\\'eprez, Giordano Scappucci, Hanifa Tidjani, Menno Veldhorst, Nico W. Hendrickx, William I. L. Lawrie","submitted_at":"2022-08-24T12:55:51Z","abstract_excerpt":"Simulations using highly tunable quantum systems may enable investigations of condensed matter systems beyond the capabilities of classical computers. Quantum dots and donors in semiconductor technology define a natural approach to implement quantum simulation. Several material platforms have been used to study interacting charge states, while gallium arsenide has also been used to investigate spin evolution. However, decoherence remains a key challenge in simulating coherent quantum dynamics. Here, we introduce quantum simulation using hole spins in germanium quantum dots. We demonstrate exte"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2208.11505","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/2208.11505/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":"2026-07-05T06:37:29Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"n4+UPS6ObeSXO/1e0+V5n5qqhQGhkC4l9DmkDMixAeHiJhGTuZltkpwq0glkYzYOqVzVF7CGKBU6v3etJRKXCQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-09T06:48:41.660593Z"},"content_sha256":"65a33a5bacb6d43e66d6cb7a4becb729b0ee1d67e43a93cafc646d9da7c739e3","schema_version":"1.0","event_id":"sha256:65a33a5bacb6d43e66d6cb7a4becb729b0ee1d67e43a93cafc646d9da7c739e3"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/YVCSE2RA3A6HPMLB2JJME7OFP2/bundle.json","state_url":"https://pith.science/pith/YVCSE2RA3A6HPMLB2JJME7OFP2/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/YVCSE2RA3A6HPMLB2JJME7OFP2/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":"2026-07-09T06:48:41Z","links":{"resolver":"https://pith.science/pith/YVCSE2RA3A6HPMLB2JJME7OFP2","bundle":"https://pith.science/pith/YVCSE2RA3A6HPMLB2JJME7OFP2/bundle.json","state":"https://pith.science/pith/YVCSE2RA3A6HPMLB2JJME7OFP2/state.json","well_known_bundle":"https://pith.science/.well-known/pith/YVCSE2RA3A6HPMLB2JJME7OFP2/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2022:YVCSE2RA3A6HPMLB2JJME7OFP2","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":"aff2efc6ae97db2059f04419426b14299ea0350c91d07aa924d4c55c1c14f747","cross_cats_sorted":["cond-mat.mes-hall"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"quant-ph","submitted_at":"2022-08-24T12:55:51Z","title_canon_sha256":"89d106c3599b5be7b3d2dd5eb4eaf3d6900c37cea3d45584671cda5d0bd8085d"},"schema_version":"1.0","source":{"id":"2208.11505","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2208.11505","created_at":"2026-07-05T06:37:29Z"},{"alias_kind":"arxiv_version","alias_value":"2208.11505v1","created_at":"2026-07-05T06:37:29Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2208.11505","created_at":"2026-07-05T06:37:29Z"},{"alias_kind":"pith_short_12","alias_value":"YVCSE2RA3A6H","created_at":"2026-07-05T06:37:29Z"},{"alias_kind":"pith_short_16","alias_value":"YVCSE2RA3A6HPMLB","created_at":"2026-07-05T06:37:29Z"},{"alias_kind":"pith_short_8","alias_value":"YVCSE2RA","created_at":"2026-07-05T06:37:29Z"}],"graph_snapshots":[{"event_id":"sha256:65a33a5bacb6d43e66d6cb7a4becb729b0ee1d67e43a93cafc646d9da7c739e3","target":"graph","created_at":"2026-07-05T06:37:29Z","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/2208.11505/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Simulations using highly tunable quantum systems may enable investigations of condensed matter systems beyond the capabilities of classical computers. Quantum dots and donors in semiconductor technology define a natural approach to implement quantum simulation. Several material platforms have been used to study interacting charge states, while gallium arsenide has also been used to investigate spin evolution. However, decoherence remains a key challenge in simulating coherent quantum dynamics. Here, we introduce quantum simulation using hole spins in germanium quantum dots. We demonstrate exte","authors_text":"Amir Sammak, Chien-An Wang, Corentin D\\'eprez, Giordano Scappucci, Hanifa Tidjani, Menno Veldhorst, Nico W. Hendrickx, William I. L. Lawrie","cross_cats":["cond-mat.mes-hall"],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"quant-ph","submitted_at":"2022-08-24T12:55:51Z","title":"Probing resonating valence bonds on a programmable germanium quantum simulator"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2208.11505","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:e728eceb103f83bf6b00a30362924d0da88d36ee088c65b62dfab1da161b7349","target":"record","created_at":"2026-07-05T06:37:29Z","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":"aff2efc6ae97db2059f04419426b14299ea0350c91d07aa924d4c55c1c14f747","cross_cats_sorted":["cond-mat.mes-hall"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"quant-ph","submitted_at":"2022-08-24T12:55:51Z","title_canon_sha256":"89d106c3599b5be7b3d2dd5eb4eaf3d6900c37cea3d45584671cda5d0bd8085d"},"schema_version":"1.0","source":{"id":"2208.11505","kind":"arxiv","version":1}},"canonical_sha256":"c545226a20d83c77b161d252c27dc57eb5f4ab5a78aa4f7582c4a5e79e1977a7","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"c545226a20d83c77b161d252c27dc57eb5f4ab5a78aa4f7582c4a5e79e1977a7","first_computed_at":"2026-07-05T06:37:29.644850Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T06:37:29.644850Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"oQbDQjyHlGV5HAG4wACaQboSUFGNba19eaBdACi29Q0RV+dk71vZ5kxM2S1Ol6+GP6Wm8l/h4+J5GQGZhqFSBQ==","signature_status":"signed_v1","signed_at":"2026-07-05T06:37:29.645256Z","signed_message":"canonical_sha256_bytes"},"source_id":"2208.11505","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:e728eceb103f83bf6b00a30362924d0da88d36ee088c65b62dfab1da161b7349","sha256:65a33a5bacb6d43e66d6cb7a4becb729b0ee1d67e43a93cafc646d9da7c739e3"],"state_sha256":"d68ecaed529c1dd511b014e8edb8c600063761bccd06ac333826c11b8e302b17"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"SKRbOHSfpz9jm7O6hkFGAa2fn422fLvPQE3oXdw0paGelIR/AGSc2z7QxqQGHHOFTQOnyVbhEXWU36IJgYmiDA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-07-09T06:48:41.663719Z","bundle_sha256":"0cee92e8088777e4760ff26ea1df478345571b3516740d74739e080df222c24d"}}