{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2012:ZLNIRWAHEX7EUFW4TS2Z6J3XF3","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":"894dd50579a59e99b6adef6848f2ffeae72b5811cefffff663b1c627599df84d","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2012-03-06T18:00:00Z","title_canon_sha256":"463a675a261b2271cddc7b8ca4465e84262a46c851d59e6fc5bc5b4ba587ed30"},"schema_version":"1.0","source":{"id":"1203.1264","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1203.1264","created_at":"2026-05-18T03:53:19Z"},{"alias_kind":"arxiv_version","alias_value":"1203.1264v2","created_at":"2026-05-18T03:53:19Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1203.1264","created_at":"2026-05-18T03:53:19Z"},{"alias_kind":"pith_short_12","alias_value":"ZLNIRWAHEX7E","created_at":"2026-05-18T12:27:30Z"},{"alias_kind":"pith_short_16","alias_value":"ZLNIRWAHEX7EUFW4","created_at":"2026-05-18T12:27:30Z"},{"alias_kind":"pith_short_8","alias_value":"ZLNIRWAH","created_at":"2026-05-18T12:27:30Z"}],"graph_snapshots":[{"event_id":"sha256:e77adf116ea7b2eebdad8e1e083dd26e88af8a885074bbd2dae1796cd542dcbe","target":"graph","created_at":"2026-05-18T03:53:19Z","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":"Establishing quantum entanglement between two distant parties is an essential step of many protocols in quantum information processing. One possibility for providing long-distance entanglement is to create an entangled composite state within a lab and then physically send one subsystem to a distant lab. However, is this the \"cheapest\" way? Here, we investigate the minimal \"cost\" that is necessary for establishing a certain amount of entanglement between two distant parties. We prove that this cost is intrinsically quantum, and is specified by quantum correlations. Our results provide an optima","authors_text":"Alexander Streltsov, Dagmar Bru{\\ss}, Hermann Kampermann","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2012-03-06T18:00:00Z","title":"Quantum cost for sending entanglement"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1203.1264","kind":"arxiv","version":2},"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":"sha256:9101a8fce073a97f625433b261297f2a5f6bcc9977e09b2a8f827fa5bf85a153","target":"record","created_at":"2026-05-18T03:53:19Z","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":"894dd50579a59e99b6adef6848f2ffeae72b5811cefffff663b1c627599df84d","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2012-03-06T18:00:00Z","title_canon_sha256":"463a675a261b2271cddc7b8ca4465e84262a46c851d59e6fc5bc5b4ba587ed30"},"schema_version":"1.0","source":{"id":"1203.1264","kind":"arxiv","version":2}},"canonical_sha256":"cada88d80725fe4a16dc9cb59f27772eec44001ffb35c5fa40311624d3b96ac6","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"cada88d80725fe4a16dc9cb59f27772eec44001ffb35c5fa40311624d3b96ac6","first_computed_at":"2026-05-18T03:53:19.875936Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T03:53:19.875936Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"/jUBGRG9/EoZlPXupE0OTsjuu3qpRR4uMSJukXtFiZ5RYBM+PEfOq1po4MEPcq7sN8Mtv/mChXXKNw54f+hCAQ==","signature_status":"signed_v1","signed_at":"2026-05-18T03:53:19.876830Z","signed_message":"canonical_sha256_bytes"},"source_id":"1203.1264","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:9101a8fce073a97f625433b261297f2a5f6bcc9977e09b2a8f827fa5bf85a153","sha256:e77adf116ea7b2eebdad8e1e083dd26e88af8a885074bbd2dae1796cd542dcbe"],"state_sha256":"fc02a56f698030c08975f60b6d132d652ed6a3190f6987623a47a28a68a94a71"}