{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2013:23WKMUTN5ULW7V2WJ5MFLMWTIG","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":"34864191e0d440fce962777693545a0bc40c0f2940e72cd0f587f14c1fadd79c","cross_cats_sorted":["cs.CR","cs.NI"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2013-09-16T12:07:52Z","title_canon_sha256":"0d03ad60a6baab2ecb8ca2520cf137c048f456a88cc27957060ad94d66fd559d"},"schema_version":"1.0","source":{"id":"1309.3923","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1309.3923","created_at":"2026-05-18T02:43:09Z"},{"alias_kind":"arxiv_version","alias_value":"1309.3923v1","created_at":"2026-05-18T02:43:09Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1309.3923","created_at":"2026-05-18T02:43:09Z"},{"alias_kind":"pith_short_12","alias_value":"23WKMUTN5ULW","created_at":"2026-05-18T12:27:30Z"},{"alias_kind":"pith_short_16","alias_value":"23WKMUTN5ULW7V2W","created_at":"2026-05-18T12:27:30Z"},{"alias_kind":"pith_short_8","alias_value":"23WKMUTN","created_at":"2026-05-18T12:27:30Z"}],"graph_snapshots":[{"event_id":"sha256:91a638691ed90811708a87d6ccc34c5e64e13fa81f24cf90acde5f96aaebc434","target":"graph","created_at":"2026-05-18T02:43:09Z","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":"Quantum Key Distribution (QKD) is maturing quickly. However, the current approaches to its application in optical networks make it an expensive technology. QKD networks deployed to date are designed as a collection of point-to-point, dedicated QKD links where non-neighboring nodes communicate using the trusted repeater paradigm. We propose a novel optical network model in which QKD systems share the communication infrastructure by wavelength multiplexing their quantum and classical signals. The routing is done using optical components within a metropolitan area which allows for a dynamically a","authors_text":"Alex Ciurana, Andreas Poppe, Hugo Zbinden, Jesus Martinez-Mateo, Momtchil Peev, Nino Walenta, Vicente Martin","cross_cats":["cs.CR","cs.NI"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2013-09-16T12:07:52Z","title":"Quantum Metropolitan Optical Network based on Wavelength Division Multiplexing"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1309.3923","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":"sha256:60e662529c9bff5c4e3aa4b1edb300bcddf28d5f6ea36c22fd1a447e85219c7c","target":"record","created_at":"2026-05-18T02:43:09Z","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":"34864191e0d440fce962777693545a0bc40c0f2940e72cd0f587f14c1fadd79c","cross_cats_sorted":["cs.CR","cs.NI"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2013-09-16T12:07:52Z","title_canon_sha256":"0d03ad60a6baab2ecb8ca2520cf137c048f456a88cc27957060ad94d66fd559d"},"schema_version":"1.0","source":{"id":"1309.3923","kind":"arxiv","version":1}},"canonical_sha256":"d6eca6526ded176fd7564f5855b2d34188bfd388a3c1c9889d4bd23d307f6169","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"d6eca6526ded176fd7564f5855b2d34188bfd388a3c1c9889d4bd23d307f6169","first_computed_at":"2026-05-18T02:43:09.366416Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:43:09.366416Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"MI4iuE6GxARojhaGUntQld6g5H3v6D9v8hrWZivGzLSz2MB1GrJhYs8XuH1chj769SmEk3Q1iU9/wm31tUG+DA==","signature_status":"signed_v1","signed_at":"2026-05-18T02:43:09.366913Z","signed_message":"canonical_sha256_bytes"},"source_id":"1309.3923","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:60e662529c9bff5c4e3aa4b1edb300bcddf28d5f6ea36c22fd1a447e85219c7c","sha256:91a638691ed90811708a87d6ccc34c5e64e13fa81f24cf90acde5f96aaebc434"],"state_sha256":"575d52c3d8590eb3abcdc113d96eb53d3d38b0113ee44246821b7eecabaaa630"}