{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2015:O6UA5T7I2VO34ISKGFS5XAGEUX","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":"2fae2054da3437ab5267076ae0bab1b205549b2c6d108ca388eb258b8c1e6730","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2015-10-22T15:56:47Z","title_canon_sha256":"bf1f0c689edc933144306f8948579731eab7d6fecd998942a5977a7e2af0dfb3"},"schema_version":"1.0","source":{"id":"1510.06666","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1510.06666","created_at":"2026-05-18T01:28:45Z"},{"alias_kind":"arxiv_version","alias_value":"1510.06666v1","created_at":"2026-05-18T01:28:45Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1510.06666","created_at":"2026-05-18T01:28:45Z"},{"alias_kind":"pith_short_12","alias_value":"O6UA5T7I2VO3","created_at":"2026-05-18T12:29:34Z"},{"alias_kind":"pith_short_16","alias_value":"O6UA5T7I2VO34ISK","created_at":"2026-05-18T12:29:34Z"},{"alias_kind":"pith_short_8","alias_value":"O6UA5T7I","created_at":"2026-05-18T12:29:34Z"}],"graph_snapshots":[{"event_id":"sha256:8f18c8cf016827610b1ba9a90dd81076636a96963b1a61824750536309f0a256","target":"graph","created_at":"2026-05-18T01:28:45Z","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 experimentally demonstrate multi-user distribution of polarization entanglement using commercial tele- com wavelength division demultiplexers. The entangled photon pairs are generated from a broadband source based on spontaneous parametric down conversion in a periodically poled lithium niobate crystal using a double path setup employing a Michelson interferometer and active phase stabilisation. We test and compare demultiplexers based on various technologies and analyze the effect of their characteristics, such as losses and polarization dependence, on the quality of the distributed entang","authors_text":"A. Orieux, E. Diamanti, I. Zaquine, J. Ghalbouni, J. Trapateau","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2015-10-22T15:56:47Z","title":"Multi-user distribution of polarization entangled photon pairs"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1510.06666","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:fc2a89ffd781c09229d24516de469868c1e1782792a0439f3f054932592a9b2e","target":"record","created_at":"2026-05-18T01:28:45Z","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":"2fae2054da3437ab5267076ae0bab1b205549b2c6d108ca388eb258b8c1e6730","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2015-10-22T15:56:47Z","title_canon_sha256":"bf1f0c689edc933144306f8948579731eab7d6fecd998942a5977a7e2af0dfb3"},"schema_version":"1.0","source":{"id":"1510.06666","kind":"arxiv","version":1}},"canonical_sha256":"77a80ecfe8d55dbe224a3165db80c4a5d36a8e180eefcad843110d42b59ceee1","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"77a80ecfe8d55dbe224a3165db80c4a5d36a8e180eefcad843110d42b59ceee1","first_computed_at":"2026-05-18T01:28:45.131156Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:28:45.131156Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"gN50KnI5pDDil8pwPh8vwv5T611Fq4BbkjDG1S948i6tx6ewMnTxUkMuT46mQ5UsQi/3FvjH/FjFXU1shGYPCA==","signature_status":"signed_v1","signed_at":"2026-05-18T01:28:45.131640Z","signed_message":"canonical_sha256_bytes"},"source_id":"1510.06666","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:fc2a89ffd781c09229d24516de469868c1e1782792a0439f3f054932592a9b2e","sha256:8f18c8cf016827610b1ba9a90dd81076636a96963b1a61824750536309f0a256"],"state_sha256":"5e82a681ce520d601225e3fa6a666e8b6d85ecd008608bc7dfec738faaff32a4"}