{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2026:2ZP77H4755ZEFLT47KS7WT3QES","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":"67eb4c6449cecb97c5a4fdaaadeca8fb8b366255c318f6e4b87f5eaec317b33a","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"quant-ph","submitted_at":"2026-05-18T17:18:23Z","title_canon_sha256":"28b4925120d7a3a7ffd5389dbec614b03bd54d12c9c3e98b8327f8a9dc125d2e"},"schema_version":"1.0","source":{"id":"2605.18677","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2605.18677","created_at":"2026-05-20T00:06:14Z"},{"alias_kind":"arxiv_version","alias_value":"2605.18677v1","created_at":"2026-05-20T00:06:14Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2605.18677","created_at":"2026-05-20T00:06:14Z"},{"alias_kind":"pith_short_12","alias_value":"2ZP77H4755ZE","created_at":"2026-05-20T00:06:14Z"},{"alias_kind":"pith_short_16","alias_value":"2ZP77H4755ZEFLT4","created_at":"2026-05-20T00:06:14Z"},{"alias_kind":"pith_short_8","alias_value":"2ZP77H47","created_at":"2026-05-20T00:06:14Z"}],"graph_snapshots":[{"event_id":"sha256:0dd2aad6fb4cccba5a591e7d415bdf963af38e7e27cf797f3064a9c427d1d0f4","target":"graph","created_at":"2026-05-20T00:06:14Z","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"},"integrity":{"available":true,"clean":true,"detectors_run":[{"findings_count":0,"name":"claim_evidence","ran_at":"2026-05-20T00:01:59.123401Z","status":"completed","version":"1.0.0"}],"endpoint":"/pith/2605.18677/integrity.json","findings":[],"snapshot_sha256":"e74c10ca78a2553787601616d007c74d818e8567a054bfc7abc3e637989fe0da","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"The distribution of entangled states is a core task for quantum networks facilitating quantum communication, and the use of multipartite entangled states comes with its own set of considerations. In this work, we analyze a quantum conference agreement protocol based on GHZ states in a network with a central station to which multiple clients are connected. Using comprehensive numerical simulations, we investigate how minor variations in the scenario-such as the number of parties, the number of memories, and asymmetric distances from the central station-can drastically influence the performance ","authors_text":"Janka Memmen, Jens Eisert, Julia Kunzelmann, Julius Walln\\\"ofer, Nathan Walk","cross_cats":[],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"quant-ph","submitted_at":"2026-05-18T17:18:23Z","title":"Strategy optimization for quantum conference key agreement in asymmetric star networks"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2605.18677","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":"sha256:167eaeb050c7d560c18a1cedd526c6c1cf9ffd39b674d21237e1b8c074f49e66","target":"record","created_at":"2026-05-20T00:06:14Z","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":"67eb4c6449cecb97c5a4fdaaadeca8fb8b366255c318f6e4b87f5eaec317b33a","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"quant-ph","submitted_at":"2026-05-18T17:18:23Z","title_canon_sha256":"28b4925120d7a3a7ffd5389dbec614b03bd54d12c9c3e98b8327f8a9dc125d2e"},"schema_version":"1.0","source":{"id":"2605.18677","kind":"arxiv","version":1}},"canonical_sha256":"d65fff9f9fef7242ae7cfaa5fb4f7024bc1aa161b4c2134f9028e96d7dd79333","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"d65fff9f9fef7242ae7cfaa5fb4f7024bc1aa161b4c2134f9028e96d7dd79333","first_computed_at":"2026-05-20T00:06:14.297561Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-20T00:06:14.297561Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"e9Y39kC8zGmrldYmZWa+Dw1a39t5IpsRy4gAXYdh9HIPWeMTEggQnoRtkiFYC+FQYYzzT/AE/CNowBa+WQjJDA==","signature_status":"signed_v1","signed_at":"2026-05-20T00:06:14.298302Z","signed_message":"canonical_sha256_bytes"},"source_id":"2605.18677","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:167eaeb050c7d560c18a1cedd526c6c1cf9ffd39b674d21237e1b8c074f49e66","sha256:0dd2aad6fb4cccba5a591e7d415bdf963af38e7e27cf797f3064a9c427d1d0f4"],"state_sha256":"9f0cfd8b73b2bd6e2899bddee6501ca29ef3ba47279999314ed4cec45f2e9138"}