{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2017:JDNNNV2WCOVNWY3CNLGKTRWMYB","short_pith_number":"pith:JDNNNV2W","canonical_record":{"source":{"id":"1707.03889","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2017-07-12T19:55:49Z","cross_cats_sorted":[],"title_canon_sha256":"aa1352d3dae4f7cf56df4902f2c435b7c898b42c73b9287a6f910a4f05305bc7","abstract_canon_sha256":"72b0a2a46dab56bfad9dbcd9090f75e002d26332cd936188e600b13e3f8063c6"},"schema_version":"1.0"},"canonical_sha256":"48dad6d75613aadb63626acca9c6ccc051d2c043b13d0b71c3e2e80c7f952c41","source":{"kind":"arxiv","id":"1707.03889","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1707.03889","created_at":"2026-05-18T00:19:27Z"},{"alias_kind":"arxiv_version","alias_value":"1707.03889v1","created_at":"2026-05-18T00:19:27Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1707.03889","created_at":"2026-05-18T00:19:27Z"},{"alias_kind":"pith_short_12","alias_value":"JDNNNV2WCOVN","created_at":"2026-05-18T12:31:24Z"},{"alias_kind":"pith_short_16","alias_value":"JDNNNV2WCOVNWY3C","created_at":"2026-05-18T12:31:24Z"},{"alias_kind":"pith_short_8","alias_value":"JDNNNV2W","created_at":"2026-05-18T12:31:24Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2017:JDNNNV2WCOVNWY3CNLGKTRWMYB","target":"record","payload":{"canonical_record":{"source":{"id":"1707.03889","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2017-07-12T19:55:49Z","cross_cats_sorted":[],"title_canon_sha256":"aa1352d3dae4f7cf56df4902f2c435b7c898b42c73b9287a6f910a4f05305bc7","abstract_canon_sha256":"72b0a2a46dab56bfad9dbcd9090f75e002d26332cd936188e600b13e3f8063c6"},"schema_version":"1.0"},"canonical_sha256":"48dad6d75613aadb63626acca9c6ccc051d2c043b13d0b71c3e2e80c7f952c41","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:19:27.675972Z","signature_b64":"0pJJktdkTtakARdKf7AknL9bEtKTcHj6EAgjaUD/A1QOPLucsxbibAhIvAT+zqi3OaUlHtUetVgzBfp2n0icCg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"48dad6d75613aadb63626acca9c6ccc051d2c043b13d0b71c3e2e80c7f952c41","last_reissued_at":"2026-05-18T00:19:27.675186Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:19:27.675186Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1707.03889","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":"2026-05-18T00:19:27Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"VUn3O6JfXsgeqqW4WB01x+mdlY8/K3ZbVaVr5rAIZksRST/jiGzRHDNrJEdPmH95kqU8VGqmhF26TlJDvPxyCg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-03T22:36:00.271365Z"},"content_sha256":"4caf8da9c411ca914a7ba91068a520ab36567cf40a0c94ccd86cf252ea097cdf","schema_version":"1.0","event_id":"sha256:4caf8da9c411ca914a7ba91068a520ab36567cf40a0c94ccd86cf252ea097cdf"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2017:JDNNNV2WCOVNWY3CNLGKTRWMYB","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Efficient eigenvalue determination for arbitrary Pauli products based on generalized spin-spin interactions","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"quant-ph","authors_text":"D.J. Wineland, D. Leibfried","submitted_at":"2017-07-12T19:55:49Z","abstract_excerpt":"Effective spin-spin interactions between N+1 qubits enable the determination of the eigenvalue of an arbitrary Pauli product of dimension N with a constant, small number of multi-qubit gates that is independent of N and encodes the eigenvalue in the measurement basis states of an extra ancilla qubit. Such interactions are available whenever qubits can be coupled to a shared harmonic oscillator, a situation that can be realized in several physical qubit implementations. For example, suitable interactions have already been realized for up to 14 qubits in ion traps. It should be possible to imple"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1707.03889","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":""},"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":"2026-05-18T00:19:27Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"yr02laSrPFCqnxMohlrnJidlye1BUPJiE8NCWAc+aUwf/jlfypG8KrEvgxu4Y4PyVXGYOCOUuu9vl1d8/k8RAA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-03T22:36:00.271727Z"},"content_sha256":"02b8be5bc88e11718704b2247331f61aeb39812ba52d58c934606b7ca0b19121","schema_version":"1.0","event_id":"sha256:02b8be5bc88e11718704b2247331f61aeb39812ba52d58c934606b7ca0b19121"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/JDNNNV2WCOVNWY3CNLGKTRWMYB/bundle.json","state_url":"https://pith.science/pith/JDNNNV2WCOVNWY3CNLGKTRWMYB/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/JDNNNV2WCOVNWY3CNLGKTRWMYB/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":"2026-06-03T22:36:00Z","links":{"resolver":"https://pith.science/pith/JDNNNV2WCOVNWY3CNLGKTRWMYB","bundle":"https://pith.science/pith/JDNNNV2WCOVNWY3CNLGKTRWMYB/bundle.json","state":"https://pith.science/pith/JDNNNV2WCOVNWY3CNLGKTRWMYB/state.json","well_known_bundle":"https://pith.science/.well-known/pith/JDNNNV2WCOVNWY3CNLGKTRWMYB/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2017:JDNNNV2WCOVNWY3CNLGKTRWMYB","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":"72b0a2a46dab56bfad9dbcd9090f75e002d26332cd936188e600b13e3f8063c6","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2017-07-12T19:55:49Z","title_canon_sha256":"aa1352d3dae4f7cf56df4902f2c435b7c898b42c73b9287a6f910a4f05305bc7"},"schema_version":"1.0","source":{"id":"1707.03889","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1707.03889","created_at":"2026-05-18T00:19:27Z"},{"alias_kind":"arxiv_version","alias_value":"1707.03889v1","created_at":"2026-05-18T00:19:27Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1707.03889","created_at":"2026-05-18T00:19:27Z"},{"alias_kind":"pith_short_12","alias_value":"JDNNNV2WCOVN","created_at":"2026-05-18T12:31:24Z"},{"alias_kind":"pith_short_16","alias_value":"JDNNNV2WCOVNWY3C","created_at":"2026-05-18T12:31:24Z"},{"alias_kind":"pith_short_8","alias_value":"JDNNNV2W","created_at":"2026-05-18T12:31:24Z"}],"graph_snapshots":[{"event_id":"sha256:02b8be5bc88e11718704b2247331f61aeb39812ba52d58c934606b7ca0b19121","target":"graph","created_at":"2026-05-18T00:19:27Z","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":"Effective spin-spin interactions between N+1 qubits enable the determination of the eigenvalue of an arbitrary Pauli product of dimension N with a constant, small number of multi-qubit gates that is independent of N and encodes the eigenvalue in the measurement basis states of an extra ancilla qubit. Such interactions are available whenever qubits can be coupled to a shared harmonic oscillator, a situation that can be realized in several physical qubit implementations. For example, suitable interactions have already been realized for up to 14 qubits in ion traps. It should be possible to imple","authors_text":"D.J. Wineland, D. Leibfried","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2017-07-12T19:55:49Z","title":"Efficient eigenvalue determination for arbitrary Pauli products based on generalized spin-spin interactions"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1707.03889","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":"sha256:4caf8da9c411ca914a7ba91068a520ab36567cf40a0c94ccd86cf252ea097cdf","target":"record","created_at":"2026-05-18T00:19:27Z","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":"72b0a2a46dab56bfad9dbcd9090f75e002d26332cd936188e600b13e3f8063c6","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2017-07-12T19:55:49Z","title_canon_sha256":"aa1352d3dae4f7cf56df4902f2c435b7c898b42c73b9287a6f910a4f05305bc7"},"schema_version":"1.0","source":{"id":"1707.03889","kind":"arxiv","version":1}},"canonical_sha256":"48dad6d75613aadb63626acca9c6ccc051d2c043b13d0b71c3e2e80c7f952c41","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"48dad6d75613aadb63626acca9c6ccc051d2c043b13d0b71c3e2e80c7f952c41","first_computed_at":"2026-05-18T00:19:27.675186Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:19:27.675186Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"0pJJktdkTtakARdKf7AknL9bEtKTcHj6EAgjaUD/A1QOPLucsxbibAhIvAT+zqi3OaUlHtUetVgzBfp2n0icCg==","signature_status":"signed_v1","signed_at":"2026-05-18T00:19:27.675972Z","signed_message":"canonical_sha256_bytes"},"source_id":"1707.03889","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:4caf8da9c411ca914a7ba91068a520ab36567cf40a0c94ccd86cf252ea097cdf","sha256:02b8be5bc88e11718704b2247331f61aeb39812ba52d58c934606b7ca0b19121"],"state_sha256":"f3af4e0e695ea1d35e059b625a66512f429bdede63ad156891cf4446147d8eab"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"6Bn0nmq0L4gITr5LSgENYmuyMK7Azafk9ISgjPeWNvg6muoES/ev8oySXgX4j122qffX6ny61h/+Z5I7yyIEAg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-03T22:36:00.273680Z","bundle_sha256":"2be68cba363961c5c5abd50c7098478ca3a23d4b3e9ed2900fa2b8f010082204"}}