{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2014:K6GXM5FMZOHU6W7YE42CDPE5RM","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":"036053e7d1e9e4d963da5127d299ff591796e3e88e380b372b4e51e05cdf533c","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.atom-ph","submitted_at":"2014-06-29T16:14:38Z","title_canon_sha256":"599cbdd5801f2aa8dce9dac32f8f797bf024ed0b91c931eaa1129624d99ff25a"},"schema_version":"1.0","source":{"id":"1406.7521","kind":"arxiv","version":4}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1406.7521","created_at":"2026-05-18T02:18:01Z"},{"alias_kind":"arxiv_version","alias_value":"1406.7521v4","created_at":"2026-05-18T02:18:01Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1406.7521","created_at":"2026-05-18T02:18:01Z"},{"alias_kind":"pith_short_12","alias_value":"K6GXM5FMZOHU","created_at":"2026-05-18T12:28:35Z"},{"alias_kind":"pith_short_16","alias_value":"K6GXM5FMZOHU6W7Y","created_at":"2026-05-18T12:28:35Z"},{"alias_kind":"pith_short_8","alias_value":"K6GXM5FM","created_at":"2026-05-18T12:28:35Z"}],"graph_snapshots":[{"event_id":"sha256:78757917db71f336195c5caea5c0639ee0bef22bc226243f96fd7e34e743cce5","target":"graph","created_at":"2026-05-18T02:18:01Z","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":"We discuss laser cooling methods of (anti)hydrogen and its importance for current and future experiments. The exploration of antimatter presents a great interest for $CERN$ and $GSI$ experiments aimed at check of quantum mechanics laws, fundamental symmetries of nature and gravity and investigations in atomic and nuclear physics. The spectral transition $1S\\rightarrow 2P$ in $\\bar{H} (H)$ atom is the most suitable for laser cooling due to a small lifetime of $2P$ state and insignificant ionization losses. However the pulsed and continuous laser sources at Lyman-$\\alpha$ wavelength do not posse","authors_text":"A.A. Golubev, E.V. Luschevskaya","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.atom-ph","submitted_at":"2014-06-29T16:14:38Z","title":"Current progress in laser cooling of antihydrogen"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1406.7521","kind":"arxiv","version":4},"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:fc1fc98d8141eaa122f686df5d666fa4fb2bc2948ac0a8e718af49b7e1399739","target":"record","created_at":"2026-05-18T02:18:01Z","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":"036053e7d1e9e4d963da5127d299ff591796e3e88e380b372b4e51e05cdf533c","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.atom-ph","submitted_at":"2014-06-29T16:14:38Z","title_canon_sha256":"599cbdd5801f2aa8dce9dac32f8f797bf024ed0b91c931eaa1129624d99ff25a"},"schema_version":"1.0","source":{"id":"1406.7521","kind":"arxiv","version":4}},"canonical_sha256":"578d7674accb8f4f5bf8273421bc9d8b15c5f12c9a8848022360a8d0e083d4ea","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"578d7674accb8f4f5bf8273421bc9d8b15c5f12c9a8848022360a8d0e083d4ea","first_computed_at":"2026-05-18T02:18:01.390816Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:18:01.390816Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"uMcfRNnxg80jlfrNCRDBYy9CDSg9kyLRHo5GMvmj+b+/Gfdd84h+SL24vC7KQGesmNlU8FCPOvPeuTA9T5CIAA==","signature_status":"signed_v1","signed_at":"2026-05-18T02:18:01.391435Z","signed_message":"canonical_sha256_bytes"},"source_id":"1406.7521","source_kind":"arxiv","source_version":4}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:fc1fc98d8141eaa122f686df5d666fa4fb2bc2948ac0a8e718af49b7e1399739","sha256:78757917db71f336195c5caea5c0639ee0bef22bc226243f96fd7e34e743cce5"],"state_sha256":"ece2e9bcc3121c746e9d6c4aa557efcfdad7a440a1757dc789073a8181aec05a"}