{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2009:IZ7H4JYDWTXUNK4FTGVNWA2GRZ","short_pith_number":"pith:IZ7H4JYD","canonical_record":{"source":{"id":"0910.1797","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2009-10-09T17:57:59Z","cross_cats_sorted":["cond-mat.other"],"title_canon_sha256":"8358b923d0b02b22c93b40fab557624d4b2517b38ac9e11bbddf6efb4aa2b15c","abstract_canon_sha256":"94baea24c15e119c9dc643a64cbaf4316946554cf2466b2712fbe00228bf6993"},"schema_version":"1.0"},"canonical_sha256":"467e7e2703b4ef46ab8599aadb03468e571bad171c1fb3ab4f4cc76d35a1d7e7","source":{"kind":"arxiv","id":"0910.1797","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"0910.1797","created_at":"2026-05-18T04:06:43Z"},{"alias_kind":"arxiv_version","alias_value":"0910.1797v2","created_at":"2026-05-18T04:06:43Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0910.1797","created_at":"2026-05-18T04:06:43Z"},{"alias_kind":"pith_short_12","alias_value":"IZ7H4JYDWTXU","created_at":"2026-05-18T12:26:00Z"},{"alias_kind":"pith_short_16","alias_value":"IZ7H4JYDWTXUNK4F","created_at":"2026-05-18T12:26:00Z"},{"alias_kind":"pith_short_8","alias_value":"IZ7H4JYD","created_at":"2026-05-18T12:26:00Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2009:IZ7H4JYDWTXUNK4FTGVNWA2GRZ","target":"record","payload":{"canonical_record":{"source":{"id":"0910.1797","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2009-10-09T17:57:59Z","cross_cats_sorted":["cond-mat.other"],"title_canon_sha256":"8358b923d0b02b22c93b40fab557624d4b2517b38ac9e11bbddf6efb4aa2b15c","abstract_canon_sha256":"94baea24c15e119c9dc643a64cbaf4316946554cf2466b2712fbe00228bf6993"},"schema_version":"1.0"},"canonical_sha256":"467e7e2703b4ef46ab8599aadb03468e571bad171c1fb3ab4f4cc76d35a1d7e7","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T04:06:43.747750Z","signature_b64":"KtoweK5IFL/ghALTZNQC9KJxS/yBO9eYq+r6QMuyObCGC6si8fcDvTYjpJun0eNlU3/csV2tlJXGM/XDuQWiCQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"467e7e2703b4ef46ab8599aadb03468e571bad171c1fb3ab4f4cc76d35a1d7e7","last_reissued_at":"2026-05-18T04:06:43.747286Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T04:06:43.747286Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"0910.1797","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":"2026-05-18T04:06:43Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"3QMn4qyzDomXBgX3npofqiVwjDPxKwlCDhROCaEfd53gkL0OXQ75KgJprIgwyIvEtPQ5QtU/g3ArWz92RVExDg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-28T11:46:33.532385Z"},"content_sha256":"af611ae0aa6140a8acd66fa724f0615700349ecb9fada0e12b401eb4ff2b039f","schema_version":"1.0","event_id":"sha256:af611ae0aa6140a8acd66fa724f0615700349ecb9fada0e12b401eb4ff2b039f"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2009:IZ7H4JYDWTXUNK4FTGVNWA2GRZ","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Dangling-bond charge qubit on a silicon surface","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cond-mat.other"],"primary_cat":"quant-ph","authors_text":"Barry C. Sanders, Gino A. DiLabio, Jason L. Pitters, Josh Mutus, Lucian Livadaru, Peng Xue, Robert A. Wolkow, Zahra Shaterzadeh-Yazdi","submitted_at":"2009-10-09T17:57:59Z","abstract_excerpt":"Two closely spaced dangling bonds positioned on a silicon surface and sharing an excess electron are revealed to be a strong candidate for a charge qubit. Based on our study of the coherent dynamics of this qubit, its extremely high tunneling rate ~ 10^14 1/s greatly exceeds the expected decoherence rates for a silicon-based system, thereby overcoming a critical obstacle of charge qubit quantum computing. We investigate possible configurations of dangling bond qubits for quantum computing devices. A first-order analysis of coherent dynamics of dangling bonds shows promise in this respect."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0910.1797","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":""},"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":"2026-05-18T04:06:43Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"5LGR7rcP2E+FHGZQGMR0UrzPXFc6B+3fL7LNxKzk5KFeVGAdvQGV0cS62UawJAOgXVRj6OfqG71n/nvk1nP7AQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-28T11:46:33.532743Z"},"content_sha256":"8d40bcdddf6b25efa6178ff667c3e5b4a9e3c1c4c1b4e4caf80c5718a7b86e41","schema_version":"1.0","event_id":"sha256:8d40bcdddf6b25efa6178ff667c3e5b4a9e3c1c4c1b4e4caf80c5718a7b86e41"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/IZ7H4JYDWTXUNK4FTGVNWA2GRZ/bundle.json","state_url":"https://pith.science/pith/IZ7H4JYDWTXUNK4FTGVNWA2GRZ/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/IZ7H4JYDWTXUNK4FTGVNWA2GRZ/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":"2026-05-28T11:46:33Z","links":{"resolver":"https://pith.science/pith/IZ7H4JYDWTXUNK4FTGVNWA2GRZ","bundle":"https://pith.science/pith/IZ7H4JYDWTXUNK4FTGVNWA2GRZ/bundle.json","state":"https://pith.science/pith/IZ7H4JYDWTXUNK4FTGVNWA2GRZ/state.json","well_known_bundle":"https://pith.science/.well-known/pith/IZ7H4JYDWTXUNK4FTGVNWA2GRZ/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2009:IZ7H4JYDWTXUNK4FTGVNWA2GRZ","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":"94baea24c15e119c9dc643a64cbaf4316946554cf2466b2712fbe00228bf6993","cross_cats_sorted":["cond-mat.other"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2009-10-09T17:57:59Z","title_canon_sha256":"8358b923d0b02b22c93b40fab557624d4b2517b38ac9e11bbddf6efb4aa2b15c"},"schema_version":"1.0","source":{"id":"0910.1797","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"0910.1797","created_at":"2026-05-18T04:06:43Z"},{"alias_kind":"arxiv_version","alias_value":"0910.1797v2","created_at":"2026-05-18T04:06:43Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0910.1797","created_at":"2026-05-18T04:06:43Z"},{"alias_kind":"pith_short_12","alias_value":"IZ7H4JYDWTXU","created_at":"2026-05-18T12:26:00Z"},{"alias_kind":"pith_short_16","alias_value":"IZ7H4JYDWTXUNK4F","created_at":"2026-05-18T12:26:00Z"},{"alias_kind":"pith_short_8","alias_value":"IZ7H4JYD","created_at":"2026-05-18T12:26:00Z"}],"graph_snapshots":[{"event_id":"sha256:8d40bcdddf6b25efa6178ff667c3e5b4a9e3c1c4c1b4e4caf80c5718a7b86e41","target":"graph","created_at":"2026-05-18T04:06:43Z","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"},"paper":{"abstract_excerpt":"Two closely spaced dangling bonds positioned on a silicon surface and sharing an excess electron are revealed to be a strong candidate for a charge qubit. Based on our study of the coherent dynamics of this qubit, its extremely high tunneling rate ~ 10^14 1/s greatly exceeds the expected decoherence rates for a silicon-based system, thereby overcoming a critical obstacle of charge qubit quantum computing. We investigate possible configurations of dangling bond qubits for quantum computing devices. A first-order analysis of coherent dynamics of dangling bonds shows promise in this respect.","authors_text":"Barry C. Sanders, Gino A. DiLabio, Jason L. Pitters, Josh Mutus, Lucian Livadaru, Peng Xue, Robert A. Wolkow, Zahra Shaterzadeh-Yazdi","cross_cats":["cond-mat.other"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2009-10-09T17:57:59Z","title":"Dangling-bond charge qubit on a silicon surface"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0910.1797","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:af611ae0aa6140a8acd66fa724f0615700349ecb9fada0e12b401eb4ff2b039f","target":"record","created_at":"2026-05-18T04:06:43Z","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":"94baea24c15e119c9dc643a64cbaf4316946554cf2466b2712fbe00228bf6993","cross_cats_sorted":["cond-mat.other"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2009-10-09T17:57:59Z","title_canon_sha256":"8358b923d0b02b22c93b40fab557624d4b2517b38ac9e11bbddf6efb4aa2b15c"},"schema_version":"1.0","source":{"id":"0910.1797","kind":"arxiv","version":2}},"canonical_sha256":"467e7e2703b4ef46ab8599aadb03468e571bad171c1fb3ab4f4cc76d35a1d7e7","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"467e7e2703b4ef46ab8599aadb03468e571bad171c1fb3ab4f4cc76d35a1d7e7","first_computed_at":"2026-05-18T04:06:43.747286Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T04:06:43.747286Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"KtoweK5IFL/ghALTZNQC9KJxS/yBO9eYq+r6QMuyObCGC6si8fcDvTYjpJun0eNlU3/csV2tlJXGM/XDuQWiCQ==","signature_status":"signed_v1","signed_at":"2026-05-18T04:06:43.747750Z","signed_message":"canonical_sha256_bytes"},"source_id":"0910.1797","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:af611ae0aa6140a8acd66fa724f0615700349ecb9fada0e12b401eb4ff2b039f","sha256:8d40bcdddf6b25efa6178ff667c3e5b4a9e3c1c4c1b4e4caf80c5718a7b86e41"],"state_sha256":"9d446b3079407b7591948c64231316a5b48c4bafe07c12b71ec5755a0092f8bd"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"FU91aBrFWdd4QJGM28VlLR4qweNNTh/75tQxuf88DFaA9BfT3v3XNIxRGP4d1NzXL3QWnT/u1T04DBJqyPySBg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-28T11:46:33.534741Z","bundle_sha256":"36c3cdf0aabb579381e9a38ea5aff5a7d5ab695450b0abb5f484a9b2a67cd832"}}