{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2014:UTC2EUFB6L7O26CLXQNQ3LV3AW","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":"dbbb9d17735798d975bd02e872a29308b53eedb557b8f3e370a32edfc926b872","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2014-02-12T16:06:15Z","title_canon_sha256":"6d955d34e922d5bc8697e94252d246345505b27901da59ff0ffb1f27cf5ee50c"},"schema_version":"1.0","source":{"id":"1402.2866","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1402.2866","created_at":"2026-05-18T02:56:32Z"},{"alias_kind":"arxiv_version","alias_value":"1402.2866v1","created_at":"2026-05-18T02:56:32Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1402.2866","created_at":"2026-05-18T02:56:32Z"},{"alias_kind":"pith_short_12","alias_value":"UTC2EUFB6L7O","created_at":"2026-05-18T12:28:52Z"},{"alias_kind":"pith_short_16","alias_value":"UTC2EUFB6L7O26CL","created_at":"2026-05-18T12:28:52Z"},{"alias_kind":"pith_short_8","alias_value":"UTC2EUFB","created_at":"2026-05-18T12:28:52Z"}],"graph_snapshots":[{"event_id":"sha256:b882fac45faea456c7a9a93e905d4236975329235c909b40ef8fef619ce06996","target":"graph","created_at":"2026-05-18T02:56:32Z","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 ability to coherently convert the frequency and temporal waveform of single and entangled photons will be crucial to interconnect the various elements of future quantum information networks. Of particular importance in this context is the quantum frequency conversion of photons emitted by material systems able to store quantum information, so called quantum memories. There have been significant efforts to implement quantum frequency conversion using non linear crystals, with non classical light from broadband photon pair sources and solid state emitters. However, so far, solid state quantu","authors_text":"Boris Albrecht, Hugues de Riedmatten, Matteo Cristiani, Pau Farrera, Xavier Fernandez-Gonzalvo","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2014-02-12T16:06:15Z","title":"A Waveguide Frequency Converter Connecting Rubidium Based Quantum Memories to the Telecom C-Band"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1402.2866","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:cf6b3130d8ff795daf3b8b7c0a9267a4286ac992cd25f603a95c93959c822e6f","target":"record","created_at":"2026-05-18T02:56:32Z","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":"dbbb9d17735798d975bd02e872a29308b53eedb557b8f3e370a32edfc926b872","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2014-02-12T16:06:15Z","title_canon_sha256":"6d955d34e922d5bc8697e94252d246345505b27901da59ff0ffb1f27cf5ee50c"},"schema_version":"1.0","source":{"id":"1402.2866","kind":"arxiv","version":1}},"canonical_sha256":"a4c5a250a1f2feed784bbc1b0daebb05b8f6c46ab7e4e390122e3e14a2950819","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"a4c5a250a1f2feed784bbc1b0daebb05b8f6c46ab7e4e390122e3e14a2950819","first_computed_at":"2026-05-18T02:56:32.055973Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:56:32.055973Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"KVURZdGx3D+MbWMmmju8rXnirKceiRQnkB/OXbqOz5H4CoM1xYC6xaQSSICyZLFuCvhcP5df7iUO+ifAEOIYAA==","signature_status":"signed_v1","signed_at":"2026-05-18T02:56:32.059040Z","signed_message":"canonical_sha256_bytes"},"source_id":"1402.2866","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:cf6b3130d8ff795daf3b8b7c0a9267a4286ac992cd25f603a95c93959c822e6f","sha256:b882fac45faea456c7a9a93e905d4236975329235c909b40ef8fef619ce06996"],"state_sha256":"075f10d70e533f3f6187643d97ad76c6ed6eed229b0c795b0f29829e9e045777"}