{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2017:X7VQEH4YJ2QVUGLLR4XGRSYC2P","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":"2ae195a3dd6fa1a69533ff2b241c10315770f2fa25e47c8e0c16825f03b33527","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.atom-ph","submitted_at":"2017-06-27T11:06:48Z","title_canon_sha256":"a5a56177d08227f1620012e57f15c7248e12e1711d4994ea0a9790d557a31e7f"},"schema_version":"1.0","source":{"id":"1706.08778","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1706.08778","created_at":"2026-07-05T07:38:22Z"},{"alias_kind":"arxiv_version","alias_value":"1706.08778v2","created_at":"2026-07-05T07:38:22Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1706.08778","created_at":"2026-07-05T07:38:22Z"},{"alias_kind":"pith_short_12","alias_value":"X7VQEH4YJ2QV","created_at":"2026-07-05T07:38:22Z"},{"alias_kind":"pith_short_16","alias_value":"X7VQEH4YJ2QVUGLL","created_at":"2026-07-05T07:38:22Z"},{"alias_kind":"pith_short_8","alias_value":"X7VQEH4Y","created_at":"2026-07-05T07:38:22Z"}],"graph_snapshots":[{"event_id":"sha256:623d0b51359da31d0a03cffec8826faf53e2deba4c57434908d9b7f535560f9b","target":"graph","created_at":"2026-07-05T07:38:22Z","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/1706.08778/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Accurate spectroscopy of highly charged high-Z ions in a storage ring is demonstrated to be feasible by the use of specially adapted crystal optics. The method has been applied for the measurement of the 1s Lamb shift in hydrogen-like gold (Au 78+) in a storage ring through spectroscopy of the Lyman x rays. This measurement represents the first result obtained for a high-Z element using high-resolution wavelength-dispersive spectroscopy in the hard x-ray regime, paving the way for sensitivity to higher-order QED effects.","authors_text":"A. Gumberidze, A. Simionovici, B. Manil, C. Brandau, C. Dimopoulou, C. Kozhuharov, C. Szabo, D. Banas, D. Liesen, D. Winters, E. F\\\"orster, E. Ziegler, F. Bosch, F. Nolden, G. Weber, H. Beyer, I. Uschmann, K.-H. Blumenhagen, K. Schulze, M. Lestinsky, M. Petridis, M. Sanjari, M. Schwemlein, M. Steck, M. Trassinelli, N. Winckler, N. Winters, O. Wehrhan, P. Indelicato, P. Jagodzinski, P.-M. Hillenbrand, R. Grisenti, R. He{\\ss}, R. Loetzsch, R. M\\\"artin, S. Hagmann, S. Trotsenko, T. Gassner, T. K\\\"ampfer, T. St\\\"ohlker, U. Spillmann, W. Chen, Y. Litvinov","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.atom-ph","submitted_at":"2017-06-27T11:06:48Z","title":"Wavelength-dispersive spectroscopy in the hard x-ray regime of a heavy highly-charged ion: The 1s Lamb shift in hydrogen-like gold"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1706.08778","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:fee5b6ea3eda62b3290d1c379c2ae42dc11dff0fd29394e546da12c70aaf3a58","target":"record","created_at":"2026-07-05T07:38:22Z","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":"2ae195a3dd6fa1a69533ff2b241c10315770f2fa25e47c8e0c16825f03b33527","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.atom-ph","submitted_at":"2017-06-27T11:06:48Z","title_canon_sha256":"a5a56177d08227f1620012e57f15c7248e12e1711d4994ea0a9790d557a31e7f"},"schema_version":"1.0","source":{"id":"1706.08778","kind":"arxiv","version":2}},"canonical_sha256":"bfeb021f984ea15a196b8f2e68cb02d3c6c666923c7ee8a0944addb06265ea8e","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"bfeb021f984ea15a196b8f2e68cb02d3c6c666923c7ee8a0944addb06265ea8e","first_computed_at":"2026-07-05T07:38:22.164296Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T07:38:22.164296Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"ySACAvHrbrUUjgpzjc8MPeVptm0N6v3F3pAnu+qog98pmLircZ50QurR6G3ZvyHsdUPnU745NJlQIZLTAbfXCQ==","signature_status":"signed_v1","signed_at":"2026-07-05T07:38:22.164785Z","signed_message":"canonical_sha256_bytes"},"source_id":"1706.08778","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:fee5b6ea3eda62b3290d1c379c2ae42dc11dff0fd29394e546da12c70aaf3a58","sha256:623d0b51359da31d0a03cffec8826faf53e2deba4c57434908d9b7f535560f9b"],"state_sha256":"bae97346bc69e8885751296fbb75d70392bf189dcfcaa8ce8551cee4fb3948cc"}