{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2015:T673CIO547QNU32YDZOEND6AUB","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":"21e5f2054fbcbde0b353a6e2c76796e2167afacb63a4759f021d478160a2850a","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2015-06-14T16:16:40Z","title_canon_sha256":"29699c3b9b749bb42cb22fd9a36985ca4c91b3ed3847edfc15821e96df4b5135"},"schema_version":"1.0","source":{"id":"1506.04412","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1506.04412","created_at":"2026-05-18T01:19:00Z"},{"alias_kind":"arxiv_version","alias_value":"1506.04412v1","created_at":"2026-05-18T01:19:00Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1506.04412","created_at":"2026-05-18T01:19:00Z"},{"alias_kind":"pith_short_12","alias_value":"T673CIO547QN","created_at":"2026-05-18T12:29:42Z"},{"alias_kind":"pith_short_16","alias_value":"T673CIO547QNU32Y","created_at":"2026-05-18T12:29:42Z"},{"alias_kind":"pith_short_8","alias_value":"T673CIO5","created_at":"2026-05-18T12:29:42Z"}],"graph_snapshots":[{"event_id":"sha256:51a124d0b8005f2cdb7707086987590083bce4fe52b494ffcccdac782a54d870","target":"graph","created_at":"2026-05-18T01:19:00Z","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":"One of the key challenges in spectroscopy is inhomogeneous broadening that masks the homogeneous spectral lineshape and the underlying coherent dynamics. A variety of techniques including four-wave mixing and spectral hole-burning are used in optical spectroscopy while in nuclear magnetic resonance (NMR) spin-echo is the most common way to counteract inhomogeneity. However, the high-power pulses used in spin-echo and other sequences often create spurious dynamics obscuring the subtle spin correlations that play a crucial role in quantum information applications. Here we develop NMR techniques ","authors_text":"A. I. Tartakovskii, A. J. Bennett, A. J. Shields, A. M. Waeber, D. A. Ritchie, E. A. Chekhovich, G. Burkard, I. Farrer, J. Nilsson, M. Hopkinson, M. S. Skolnick, R. M. Stevenson","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2015-06-14T16:16:40Z","title":"Few-second-long correlation times in a quantum dot nuclear spin bath probed by frequency-comb NMR spectroscopy"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1506.04412","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":"sha256:6f3f7e24e5da45995a473657b3b185c77c72216cd4c22dc84464261d57ed2d7e","target":"record","created_at":"2026-05-18T01:19:00Z","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":"21e5f2054fbcbde0b353a6e2c76796e2167afacb63a4759f021d478160a2850a","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2015-06-14T16:16:40Z","title_canon_sha256":"29699c3b9b749bb42cb22fd9a36985ca4c91b3ed3847edfc15821e96df4b5135"},"schema_version":"1.0","source":{"id":"1506.04412","kind":"arxiv","version":1}},"canonical_sha256":"9fbfb121dde7e0da6f581e5c468fc0a04c1417aac255e70d54a3eec4a0ca90fd","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"9fbfb121dde7e0da6f581e5c468fc0a04c1417aac255e70d54a3eec4a0ca90fd","first_computed_at":"2026-05-18T01:19:00.428338Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:19:00.428338Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"WQTv50EVAO5e+AQSBTV7rULaEHlyhc0qzqdg0lpLFsZzivrJq5ZGhgS/MQhvUu+6ju3LhloRyOVsX3qp++dGAw==","signature_status":"signed_v1","signed_at":"2026-05-18T01:19:00.428942Z","signed_message":"canonical_sha256_bytes"},"source_id":"1506.04412","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:6f3f7e24e5da45995a473657b3b185c77c72216cd4c22dc84464261d57ed2d7e","sha256:51a124d0b8005f2cdb7707086987590083bce4fe52b494ffcccdac782a54d870"],"state_sha256":"52a88c46f3e45deec1ca82d378f78339b494c22f4a20691d9dbcb3f8421e5c75"}