{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2018:GQWZ7IVJDCF7A7ELT6RS6OVRY2","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":"89130c702812660e43e2268140b5e5187357c9a987097c505f50e6066d7da276","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2018-02-27T17:17:24Z","title_canon_sha256":"be3afc5539c4ca60049c459c8c921d1b71b4d429cfa1b6b4101ad0e3895a157f"},"schema_version":"1.0","source":{"id":"1802.10032","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1802.10032","created_at":"2026-05-18T00:18:25Z"},{"alias_kind":"arxiv_version","alias_value":"1802.10032v1","created_at":"2026-05-18T00:18:25Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1802.10032","created_at":"2026-05-18T00:18:25Z"},{"alias_kind":"pith_short_12","alias_value":"GQWZ7IVJDCF7","created_at":"2026-05-18T12:32:25Z"},{"alias_kind":"pith_short_16","alias_value":"GQWZ7IVJDCF7A7EL","created_at":"2026-05-18T12:32:25Z"},{"alias_kind":"pith_short_8","alias_value":"GQWZ7IVJ","created_at":"2026-05-18T12:32:25Z"}],"graph_snapshots":[{"event_id":"sha256:338671df0992ddf0cd6d5a9cbe68d060f343aa6d59c4e9923b37704624abb28d","target":"graph","created_at":"2026-05-18T00:18:25Z","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":"The long-searched C-H stretches of the fundamental ions CH$^+$ and $^{13}$CH$^+$ have been observed for the first time in the laboratory. For this, the state-dependent attachment of He atoms to these ions at cryogenic temperatures has been exploited to obtain high-resolution rovibrational data. In addition, the lowest rotational transitions of CH$^+$, $^{13}$CH$^+$ and CD$^+$ have been revisited and their rest frequency values improved substantially.","authors_text":"Jos\\'e L. Dom\\'enech, Oskar Asvany, Pavol Jusko, Stephan Schlemmer","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2018-02-27T17:17:24Z","title":"First laboratory detection of vibration-rotation transitions of CH$^+$ and $^{13}$CH$^+$ and improved measurement of their rotational transition frequencies"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1802.10032","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":"sha256:9522a52640e62e3457ac7cfcd23795ac52d7bd2efe2844ebbad716bcb71661c6","target":"record","created_at":"2026-05-18T00:18:25Z","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":"89130c702812660e43e2268140b5e5187357c9a987097c505f50e6066d7da276","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2018-02-27T17:17:24Z","title_canon_sha256":"be3afc5539c4ca60049c459c8c921d1b71b4d429cfa1b6b4101ad0e3895a157f"},"schema_version":"1.0","source":{"id":"1802.10032","kind":"arxiv","version":1}},"canonical_sha256":"342d9fa2a9188bf07c8b9fa32f3ab1c6a0ea9f50caa10edc5d54a7fb09455b10","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"342d9fa2a9188bf07c8b9fa32f3ab1c6a0ea9f50caa10edc5d54a7fb09455b10","first_computed_at":"2026-05-18T00:18:25.197248Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:18:25.197248Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"yA1dzGdIMFaZYPH3PelTvSP63IJ6wtOBDrybfVi3vCb2+swcPOCS1tH8nZ281kFZxHC4FunKTokcMxyldnR0AA==","signature_status":"signed_v1","signed_at":"2026-05-18T00:18:25.197847Z","signed_message":"canonical_sha256_bytes"},"source_id":"1802.10032","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:9522a52640e62e3457ac7cfcd23795ac52d7bd2efe2844ebbad716bcb71661c6","sha256:338671df0992ddf0cd6d5a9cbe68d060f343aa6d59c4e9923b37704624abb28d"],"state_sha256":"9d98292adda354b1b40dff6d3684c6b10e1f93bf40c89f00a4109891aa86532e"}