{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2024:PUNM53Y3ESIPMVHF2IGYLBKRL3","short_pith_number":"pith:PUNM53Y3","canonical_record":{"source":{"id":"2405.15494","kind":"arxiv","version":2},"metadata":{"license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","primary_cat":"quant-ph","submitted_at":"2024-05-24T12:22:16Z","cross_cats_sorted":["cond-mat.mes-hall"],"title_canon_sha256":"bac6b7e92d2a8476c1bca156fcf9a76a8f82b6b156281e909f7aafdd2c62fd2f","abstract_canon_sha256":"6aaa9826e2e8ca25b8a270a0e771690ed9807e8144a572de7d9bd703ec2d38df"},"schema_version":"1.0"},"canonical_sha256":"7d1aceef1b2490f654e5d20d8585515edd8663886aa13f99b3c9be55c992080d","source":{"kind":"arxiv","id":"2405.15494","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2405.15494","created_at":"2026-07-05T10:23:19Z"},{"alias_kind":"arxiv_version","alias_value":"2405.15494v2","created_at":"2026-07-05T10:23:19Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2405.15494","created_at":"2026-07-05T10:23:19Z"},{"alias_kind":"pith_short_12","alias_value":"PUNM53Y3ESIP","created_at":"2026-07-05T10:23:19Z"},{"alias_kind":"pith_short_16","alias_value":"PUNM53Y3ESIPMVHF","created_at":"2026-07-05T10:23:19Z"},{"alias_kind":"pith_short_8","alias_value":"PUNM53Y3","created_at":"2026-07-05T10:23:19Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2024:PUNM53Y3ESIPMVHF2IGYLBKRL3","target":"record","payload":{"canonical_record":{"source":{"id":"2405.15494","kind":"arxiv","version":2},"metadata":{"license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","primary_cat":"quant-ph","submitted_at":"2024-05-24T12:22:16Z","cross_cats_sorted":["cond-mat.mes-hall"],"title_canon_sha256":"bac6b7e92d2a8476c1bca156fcf9a76a8f82b6b156281e909f7aafdd2c62fd2f","abstract_canon_sha256":"6aaa9826e2e8ca25b8a270a0e771690ed9807e8144a572de7d9bd703ec2d38df"},"schema_version":"1.0"},"canonical_sha256":"7d1aceef1b2490f654e5d20d8585515edd8663886aa13f99b3c9be55c992080d","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T10:23:19.622529Z","signature_b64":"mVGx1kuzTgBBaaLeuXrtkUvtIrrxVRj/WRcyqR6IxA8IXmR0qbcMVRU+lk7vuNsSMsLaoIQ2V7O/oqjIWdihDw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"7d1aceef1b2490f654e5d20d8585515edd8663886aa13f99b3c9be55c992080d","last_reissued_at":"2026-07-05T10:23:19.621869Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T10:23:19.621869Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2405.15494","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":"2026-07-05T10:23:19Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"/6sI+IDzbwC05Y/mqV3L4DmYqCavEHqmv2vnJhPCW8t4hwV+YtPEKFpGQ8wGhHlHKP7FhhpRc97uWr+N+zOfDQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-07T16:27:31.154304Z"},"content_sha256":"154f880463701b45d2a44b0fc12a8b548952a36b13953aaa5511da1f23263feb","schema_version":"1.0","event_id":"sha256:154f880463701b45d2a44b0fc12a8b548952a36b13953aaa5511da1f23263feb"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2024:PUNM53Y3ESIPMVHF2IGYLBKRL3","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Schr\\\"odinger cat states of a nuclear spin qudit in silicon","license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","headline":"","cross_cats":["cond-mat.mes-hall"],"primary_cat":"quant-ph","authors_text":"Alexander M. Jakob, Anders Kringh{\\o}j, Andrea Morello, Andrew S. Dzurak, Arjen Vaartjes, Barry C. Sanders, Benjamin Wilhelm, Danielle Holmes, Daniel Schwienbacher, David N. Jamieson, Fay E. Hudson, Kohei M. Itoh, Mark R. van Blankenstein, Martin Nurizzo, Namit Anand, Pragati Gupta, Riley J. Murray, Robin Blume-Kohout, Thaddeus D. Ladd, Xi Yu","submitted_at":"2024-05-24T12:22:16Z","abstract_excerpt":"High-dimensional quantum systems are a valuable resource for quantum information processing. They can be used to encode error-correctable logical qubits, which has been demonstrated using continuous-variable states in microwave cavities or the motional modes of trapped ions. For example, high-dimensional systems can be used to realise `Schr\\\"{o}dinger cat' states, superpositions of widely displaced coherent states that can also be used to illustrate quantum effects at large scales. Recent proposals have suggested encoding qubits in high-spin atomic nuclei, finite-dimensional systems that can h"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2405.15494","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/2405.15494/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":"2026-07-05T10:23:19Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"mfks4EL4VY5w3WDWVkxBuGqgb9ZDR6bJ448T7nNEMs35kr9tNOv6bXmsmT2hGs9SDLXrNRr+ZlrTrhy4QLXvBA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-07T16:27:31.154833Z"},"content_sha256":"352e5874f5a14fab1038440005fb64aaa193ffd0e822013bc7ac79fcccc6ab5b","schema_version":"1.0","event_id":"sha256:352e5874f5a14fab1038440005fb64aaa193ffd0e822013bc7ac79fcccc6ab5b"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/PUNM53Y3ESIPMVHF2IGYLBKRL3/bundle.json","state_url":"https://pith.science/pith/PUNM53Y3ESIPMVHF2IGYLBKRL3/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/PUNM53Y3ESIPMVHF2IGYLBKRL3/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":"2026-08-07T16:27:31Z","links":{"resolver":"https://pith.science/pith/PUNM53Y3ESIPMVHF2IGYLBKRL3","bundle":"https://pith.science/pith/PUNM53Y3ESIPMVHF2IGYLBKRL3/bundle.json","state":"https://pith.science/pith/PUNM53Y3ESIPMVHF2IGYLBKRL3/state.json","well_known_bundle":"https://pith.science/.well-known/pith/PUNM53Y3ESIPMVHF2IGYLBKRL3/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2024:PUNM53Y3ESIPMVHF2IGYLBKRL3","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":"6aaa9826e2e8ca25b8a270a0e771690ed9807e8144a572de7d9bd703ec2d38df","cross_cats_sorted":["cond-mat.mes-hall"],"license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","primary_cat":"quant-ph","submitted_at":"2024-05-24T12:22:16Z","title_canon_sha256":"bac6b7e92d2a8476c1bca156fcf9a76a8f82b6b156281e909f7aafdd2c62fd2f"},"schema_version":"1.0","source":{"id":"2405.15494","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2405.15494","created_at":"2026-07-05T10:23:19Z"},{"alias_kind":"arxiv_version","alias_value":"2405.15494v2","created_at":"2026-07-05T10:23:19Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2405.15494","created_at":"2026-07-05T10:23:19Z"},{"alias_kind":"pith_short_12","alias_value":"PUNM53Y3ESIP","created_at":"2026-07-05T10:23:19Z"},{"alias_kind":"pith_short_16","alias_value":"PUNM53Y3ESIPMVHF","created_at":"2026-07-05T10:23:19Z"},{"alias_kind":"pith_short_8","alias_value":"PUNM53Y3","created_at":"2026-07-05T10:23:19Z"}],"graph_snapshots":[{"event_id":"sha256:352e5874f5a14fab1038440005fb64aaa193ffd0e822013bc7ac79fcccc6ab5b","target":"graph","created_at":"2026-07-05T10:23:19Z","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/2405.15494/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"High-dimensional quantum systems are a valuable resource for quantum information processing. They can be used to encode error-correctable logical qubits, which has been demonstrated using continuous-variable states in microwave cavities or the motional modes of trapped ions. For example, high-dimensional systems can be used to realise `Schr\\\"{o}dinger cat' states, superpositions of widely displaced coherent states that can also be used to illustrate quantum effects at large scales. Recent proposals have suggested encoding qubits in high-spin atomic nuclei, finite-dimensional systems that can h","authors_text":"Alexander M. Jakob, Anders Kringh{\\o}j, Andrea Morello, Andrew S. Dzurak, Arjen Vaartjes, Barry C. Sanders, Benjamin Wilhelm, Danielle Holmes, Daniel Schwienbacher, David N. Jamieson, Fay E. Hudson, Kohei M. Itoh, Mark R. van Blankenstein, Martin Nurizzo, Namit Anand, Pragati Gupta, Riley J. Murray, Robin Blume-Kohout, Thaddeus D. Ladd, Xi Yu","cross_cats":["cond-mat.mes-hall"],"headline":"","license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","primary_cat":"quant-ph","submitted_at":"2024-05-24T12:22:16Z","title":"Schr\\\"odinger cat states of a nuclear spin qudit in silicon"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2405.15494","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":"sha256:154f880463701b45d2a44b0fc12a8b548952a36b13953aaa5511da1f23263feb","target":"record","created_at":"2026-07-05T10:23:19Z","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":"6aaa9826e2e8ca25b8a270a0e771690ed9807e8144a572de7d9bd703ec2d38df","cross_cats_sorted":["cond-mat.mes-hall"],"license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","primary_cat":"quant-ph","submitted_at":"2024-05-24T12:22:16Z","title_canon_sha256":"bac6b7e92d2a8476c1bca156fcf9a76a8f82b6b156281e909f7aafdd2c62fd2f"},"schema_version":"1.0","source":{"id":"2405.15494","kind":"arxiv","version":2}},"canonical_sha256":"7d1aceef1b2490f654e5d20d8585515edd8663886aa13f99b3c9be55c992080d","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"7d1aceef1b2490f654e5d20d8585515edd8663886aa13f99b3c9be55c992080d","first_computed_at":"2026-07-05T10:23:19.621869Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T10:23:19.621869Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"mVGx1kuzTgBBaaLeuXrtkUvtIrrxVRj/WRcyqR6IxA8IXmR0qbcMVRU+lk7vuNsSMsLaoIQ2V7O/oqjIWdihDw==","signature_status":"signed_v1","signed_at":"2026-07-05T10:23:19.622529Z","signed_message":"canonical_sha256_bytes"},"source_id":"2405.15494","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:154f880463701b45d2a44b0fc12a8b548952a36b13953aaa5511da1f23263feb","sha256:352e5874f5a14fab1038440005fb64aaa193ffd0e822013bc7ac79fcccc6ab5b"],"state_sha256":"8e8fdb0011a610ddf058e3f09c8b65b8d9f8ebc4f27e9724432a8813ba5653d5"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"nS1NDFBaOA1GM/8xGnDZe0c0wQTbOY/4hcK1ss4+KXWkU/Us+x+ImdjCQY27jRBCg8ONjJqxxJB5Y9R/r+WYBA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-07T16:27:31.159935Z","bundle_sha256":"1c7353b60b84121e1400c9f5a47a9906ac7f6d24df818e4a5d88b363bd7ac655"}}