{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2017:RBVAWIGOLI3RJLOI67LWYUADEM","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":"5f5e77ad7b855d2dcc41ff12e018f22b9984057cf5de6ac1c7710a27b0d2255d","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.chem-ph","submitted_at":"2017-12-15T12:48:25Z","title_canon_sha256":"b267befd95543834e142052270456490fdd6cbeae254c7e85a5a4b53afde2665"},"schema_version":"1.0","source":{"id":"1712.05646","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1712.05646","created_at":"2026-05-18T00:27:55Z"},{"alias_kind":"arxiv_version","alias_value":"1712.05646v1","created_at":"2026-05-18T00:27:55Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1712.05646","created_at":"2026-05-18T00:27:55Z"},{"alias_kind":"pith_short_12","alias_value":"RBVAWIGOLI3R","created_at":"2026-05-18T12:31:39Z"},{"alias_kind":"pith_short_16","alias_value":"RBVAWIGOLI3RJLOI","created_at":"2026-05-18T12:31:39Z"},{"alias_kind":"pith_short_8","alias_value":"RBVAWIGO","created_at":"2026-05-18T12:31:39Z"}],"graph_snapshots":[{"event_id":"sha256:d556d59b712fd19303b0d153231e038a14aabc98a3bab91d9c1220872da06d48","target":"graph","created_at":"2026-05-18T00:27:55Z","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 dissociation dynamics of the $\\tilde{A}$-state of ammonia have been studied using a resonant multiphoton ionisation probe in a photoelectron spectroscopy experiment. The use of a resonant intermediate in the multiphoton ionisation process changes the ionisation propensity, allowing access to different ion states when compared with equivalent single photon ionisation experiments. Ionisation through the $E'$ $^1$A$_1'$ Rydberg intermediate means we maintain overlap with the ion state for an extended period allowing us to monitor the excited state population for several hundred femtoseconds. ","authors_text":"Adam D. Smith, Cephise Cacho, Daniel A. Horke, Edward Jager, Emma Springate, Hannah M. Watts, Oliver Alexander, Richard T. Chapman, Russell S. Minns","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.chem-ph","submitted_at":"2017-12-15T12:48:25Z","title":"Resonant multiphoton ionisation probe of the photodissociation dynamics of ammonia"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1712.05646","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:c637d0c195c360b839b1de40feb45fef4aecf786e7ac954bb90759e2f2216281","target":"record","created_at":"2026-05-18T00:27:55Z","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":"5f5e77ad7b855d2dcc41ff12e018f22b9984057cf5de6ac1c7710a27b0d2255d","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.chem-ph","submitted_at":"2017-12-15T12:48:25Z","title_canon_sha256":"b267befd95543834e142052270456490fdd6cbeae254c7e85a5a4b53afde2665"},"schema_version":"1.0","source":{"id":"1712.05646","kind":"arxiv","version":1}},"canonical_sha256":"886a0b20ce5a3714adc8f7d76c5003231eed61433db643910dff067ce4307a41","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"886a0b20ce5a3714adc8f7d76c5003231eed61433db643910dff067ce4307a41","first_computed_at":"2026-05-18T00:27:55.983452Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:27:55.983452Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"+5vsKCQSKBf1IgGe97/oLO3wA7yy3plKLC46aVXdQOqR67thzI3hiBUPy1O0JB63PxFH84kt1Vy4qvCs04KUAA==","signature_status":"signed_v1","signed_at":"2026-05-18T00:27:55.983996Z","signed_message":"canonical_sha256_bytes"},"source_id":"1712.05646","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:c637d0c195c360b839b1de40feb45fef4aecf786e7ac954bb90759e2f2216281","sha256:d556d59b712fd19303b0d153231e038a14aabc98a3bab91d9c1220872da06d48"],"state_sha256":"f32022158dd450d5d54e7234e5e85d2c575a2ce4c08a4e6a58e2991a729b0b0f"}