{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2016:LLTTGI4V553XVCTQ3KM3WRFVE5","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":"f696abc8296f617e3130810f2ef5697d12db4dece18895e567b970ba72e17d05","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.chem-ph","submitted_at":"2016-09-20T08:23:34Z","title_canon_sha256":"8f80b9194723a421f5332a94d786678e99e68d3bfd6c9d9df92d0415b237bee9"},"schema_version":"1.0","source":{"id":"1609.06053","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1609.06053","created_at":"2026-05-18T01:04:16Z"},{"alias_kind":"arxiv_version","alias_value":"1609.06053v1","created_at":"2026-05-18T01:04:16Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1609.06053","created_at":"2026-05-18T01:04:16Z"},{"alias_kind":"pith_short_12","alias_value":"LLTTGI4V553X","created_at":"2026-05-18T12:30:29Z"},{"alias_kind":"pith_short_16","alias_value":"LLTTGI4V553XVCTQ","created_at":"2026-05-18T12:30:29Z"},{"alias_kind":"pith_short_8","alias_value":"LLTTGI4V","created_at":"2026-05-18T12:30:29Z"}],"graph_snapshots":[{"event_id":"sha256:a877c4b4de49a6a8527f1bd9cd50982c206e8ba4cd2b687b523736f7a68f4baf","target":"graph","created_at":"2026-05-18T01:04:16Z","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":"Splitting due to tunnelling via the potential energy barrier has played a significant role in the study of molecular spectra since the early days of spectroscopy. The observation of the ammonia doublet led to attempts to find a phosphine analogous, but these have so far failed due to its considerably higher barrier. Full dimensional, variational nuclear motion calculations are used to predict splittings as a function of excitation energy. Simulated spectra suggest that such splittings should be observable in the near infrared via overtones of the $\\nu_2$ bending mode starting with $4\\nu_2$.","authors_text":"Clara Sousa-Silva, Jonathan Tennyson, Sergey N. Yurchenko","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.chem-ph","submitted_at":"2016-09-20T08:23:34Z","title":"Tunnelling splitting in the phosphine molecule"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1609.06053","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:c96c75ac552b86ddee5d7ce1d28c996182c4a69c01c9279ddf51ad8efa2d2305","target":"record","created_at":"2026-05-18T01:04:16Z","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":"f696abc8296f617e3130810f2ef5697d12db4dece18895e567b970ba72e17d05","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.chem-ph","submitted_at":"2016-09-20T08:23:34Z","title_canon_sha256":"8f80b9194723a421f5332a94d786678e99e68d3bfd6c9d9df92d0415b237bee9"},"schema_version":"1.0","source":{"id":"1609.06053","kind":"arxiv","version":1}},"canonical_sha256":"5ae7332395ef777a8a70da99bb44b52763022dee56c9a3b96e235dd77b131cd6","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"5ae7332395ef777a8a70da99bb44b52763022dee56c9a3b96e235dd77b131cd6","first_computed_at":"2026-05-18T01:04:16.826067Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:04:16.826067Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"1b8X7ZHYYE0rxU5ovLnJEviJoGRQuGmHGJinJJjrVFM7s8NjS8qGIWJ6IFMmgwKGWFA5tR4mzMQfci2BftaGBQ==","signature_status":"signed_v1","signed_at":"2026-05-18T01:04:16.826527Z","signed_message":"canonical_sha256_bytes"},"source_id":"1609.06053","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:c96c75ac552b86ddee5d7ce1d28c996182c4a69c01c9279ddf51ad8efa2d2305","sha256:a877c4b4de49a6a8527f1bd9cd50982c206e8ba4cd2b687b523736f7a68f4baf"],"state_sha256":"87b476715263f7608bdb6df0f1d948d69c4441ec99e6df2f4da220f377d68595"}