{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2014:7KTDKE5KNRSH5M6MAKPQTPAOC5","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":"93bdf4183ba6127b340eb25aad49bf1d63baaf4dda20e4dd11a6e81fab92b2da","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.atom-ph","submitted_at":"2014-03-27T06:30:45Z","title_canon_sha256":"b7173aeaec6f631ab76ff68dc4760b21fa48e8f1cd1b742f03e1ce73f274cc4a"},"schema_version":"1.0","source":{"id":"1403.6925","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1403.6925","created_at":"2026-05-18T00:50:36Z"},{"alias_kind":"arxiv_version","alias_value":"1403.6925v1","created_at":"2026-05-18T00:50:36Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1403.6925","created_at":"2026-05-18T00:50:36Z"},{"alias_kind":"pith_short_12","alias_value":"7KTDKE5KNRSH","created_at":"2026-05-18T12:28:19Z"},{"alias_kind":"pith_short_16","alias_value":"7KTDKE5KNRSH5M6M","created_at":"2026-05-18T12:28:19Z"},{"alias_kind":"pith_short_8","alias_value":"7KTDKE5K","created_at":"2026-05-18T12:28:19Z"}],"graph_snapshots":[{"event_id":"sha256:b2f29e973dd5848104851db5996d68e657ca8df125a4c1f981a78ecbd10c33ac","target":"graph","created_at":"2026-05-18T00:50:36Z","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 investigate the leading systematic effects in ro-vibrational spectroscopy of the molecular hydrogen ions H2+ and HD+, in order to assess their potential for the realization of optical clocks that would be sensitive to possible variations of the proton-to-electron mass ratio. Both two-photon (2E1) and quadrupole (E2) transitions are considered. In view of the weakness of these transitions, most attention is devoted to the light shift induced by the probe laser, which we express as a function of the transition amplitude, differential dynamic polarizability and clock interrogation times. Trans","authors_text":"DPM), Jean-Philippe Karr (LKB - Jussieu","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.atom-ph","submitted_at":"2014-03-27T06:30:45Z","title":"H2+ and HD+: candidates for a molecular clock"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1403.6925","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":"sha256:7e61c2fdfdaf987745b824efeabc594522a228d5539bcd969cd9155006f3ea62","target":"record","created_at":"2026-05-18T00:50:36Z","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":"93bdf4183ba6127b340eb25aad49bf1d63baaf4dda20e4dd11a6e81fab92b2da","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.atom-ph","submitted_at":"2014-03-27T06:30:45Z","title_canon_sha256":"b7173aeaec6f631ab76ff68dc4760b21fa48e8f1cd1b742f03e1ce73f274cc4a"},"schema_version":"1.0","source":{"id":"1403.6925","kind":"arxiv","version":1}},"canonical_sha256":"faa63513aa6c647eb3cc029f09bc0e176eb78b9269dba960592949c6e956ece3","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"faa63513aa6c647eb3cc029f09bc0e176eb78b9269dba960592949c6e956ece3","first_computed_at":"2026-05-18T00:50:36.087153Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:50:36.087153Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"7i1RVdnrccgAS2f5aQJ8UAgEOtyQ1vT4LCpzDeEn4zIJ01766bNL6UWpFdxKlgpZH4D4Pd5TnkC0zPKZS35lAw==","signature_status":"signed_v1","signed_at":"2026-05-18T00:50:36.087856Z","signed_message":"canonical_sha256_bytes"},"source_id":"1403.6925","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:7e61c2fdfdaf987745b824efeabc594522a228d5539bcd969cd9155006f3ea62","sha256:b2f29e973dd5848104851db5996d68e657ca8df125a4c1f981a78ecbd10c33ac"],"state_sha256":"09c4588adbad81a528b332d8df2f86bd3e7d8cd10390ca1ddfe0f5b4340f9749"}