{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2016:CX66MEK624AVYALFE7OEE4OXMG","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":"fdfae3352e5849ce66df729df66fff346110ec6a7cf49cf620a6eb63ad2af7d7","cross_cats_sorted":["physics.atom-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.chem-ph","submitted_at":"2016-12-16T19:20:18Z","title_canon_sha256":"2e9a7f6826a07796b6b7d5978721190c79bc8c4e1e1712a7b68d37732f107f01"},"schema_version":"1.0","source":{"id":"1612.05600","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1612.05600","created_at":"2026-05-18T00:41:01Z"},{"alias_kind":"arxiv_version","alias_value":"1612.05600v1","created_at":"2026-05-18T00:41:01Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1612.05600","created_at":"2026-05-18T00:41:01Z"},{"alias_kind":"pith_short_12","alias_value":"CX66MEK624AV","created_at":"2026-05-18T12:30:09Z"},{"alias_kind":"pith_short_16","alias_value":"CX66MEK624AVYALF","created_at":"2026-05-18T12:30:09Z"},{"alias_kind":"pith_short_8","alias_value":"CX66MEK6","created_at":"2026-05-18T12:30:09Z"}],"graph_snapshots":[{"event_id":"sha256:450bb5b64eb3ed478d84a48fef92fe956e33fe8bf9a758b27ff348701cb86644","target":"graph","created_at":"2026-05-18T00:41:01Z","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 report observation of two-photon emission from coherently excited vibrational state of solid parahydrogen, known as one of quantum solids. The coherent state between the ground and the excited states is prepared by stimulated Raman scattering using two visible laser pulses. The two-photon emission is triggered by another mid-infrared laser pulse. The observed two-photon emission persists even when the trigger pulse is injected long after the excitation. The observed phenomenon is due to a long decoherence time of the vibrational states of solid parahydrogen, which is attributed to special n","authors_text":"Akihiro Yoshimi, Hideaki Hara, Koji Yoshimura, Motohiko Yoshimura, Noboru Sasao, Satoshi Uetake, Takahiko Masuda, Yuki Miyamoto","cross_cats":["physics.atom-ph"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.chem-ph","submitted_at":"2016-12-16T19:20:18Z","title":"Vibrational two-photon emission from coherently excited solid parahydrogen"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1612.05600","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":"sha256:96abae6e5c15680a769cca4e2f19213c909221a4928139a79b72f83704f9d28b","target":"record","created_at":"2026-05-18T00:41:01Z","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":"fdfae3352e5849ce66df729df66fff346110ec6a7cf49cf620a6eb63ad2af7d7","cross_cats_sorted":["physics.atom-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.chem-ph","submitted_at":"2016-12-16T19:20:18Z","title_canon_sha256":"2e9a7f6826a07796b6b7d5978721190c79bc8c4e1e1712a7b68d37732f107f01"},"schema_version":"1.0","source":{"id":"1612.05600","kind":"arxiv","version":1}},"canonical_sha256":"15fde6115ed7015c016527dc4271d761b4fd883ccc875ea335792ebe14a3c067","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"15fde6115ed7015c016527dc4271d761b4fd883ccc875ea335792ebe14a3c067","first_computed_at":"2026-05-18T00:41:01.067072Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:41:01.067072Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"2h7iZlmOgYIsyCbJ+j8ZLZPj59SU6yQDlD8b43rCZf8OFzVKFFsI6DAKGsSxlsBre3s/HPCrCmQNT8Wa5b5LCA==","signature_status":"signed_v1","signed_at":"2026-05-18T00:41:01.067689Z","signed_message":"canonical_sha256_bytes"},"source_id":"1612.05600","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:96abae6e5c15680a769cca4e2f19213c909221a4928139a79b72f83704f9d28b","sha256:450bb5b64eb3ed478d84a48fef92fe956e33fe8bf9a758b27ff348701cb86644"],"state_sha256":"1cea21bea609f98213a844349cebc402648a3b3061f538ed7c21df4723118181"}