{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2007:WJVW4E5BP67VB75CFSKXX6XWBO","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":"51ce42d12d7d6d9712ccf1bae409e223a1a41e8f1fd11300d8bd7ed463f09d36","cross_cats_sorted":[],"license":"","primary_cat":"quant-ph","submitted_at":"2007-10-24T17:29:24Z","title_canon_sha256":"9ddbeb4a84271e0c6ae28261ffbe9a315cb459c68f1e7b10c41c3bb21af38ecd"},"schema_version":"1.0","source":{"id":"0710.4352","kind":"arxiv","version":4}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"0710.4352","created_at":"2026-07-04T15:43:24Z"},{"alias_kind":"arxiv_version","alias_value":"0710.4352v4","created_at":"2026-07-04T15:43:24Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0710.4352","created_at":"2026-07-04T15:43:24Z"},{"alias_kind":"pith_short_12","alias_value":"WJVW4E5BP67V","created_at":"2026-07-04T15:43:24Z"},{"alias_kind":"pith_short_16","alias_value":"WJVW4E5BP67VB75C","created_at":"2026-07-04T15:43:24Z"},{"alias_kind":"pith_short_8","alias_value":"WJVW4E5B","created_at":"2026-07-04T15:43:24Z"}],"graph_snapshots":[{"event_id":"sha256:89ebd84ed0e9a4cdcc7dc853ee6620d322d0cbff5cb001fad296e7d45371d225","target":"graph","created_at":"2026-07-04T15:43:24Z","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":[],"endpoint":"/pith/0710.4352/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"The act of measuring optical emissions from two remote qubits can entangle them. By demanding that a photon from each qubit reaches the detectors, one can ensure than no photon was lost. But the failure rate then rises quadratically with loss probability. In [1] this resulted in 30 successes per billion attempts. We describe a means to exploit the low grade entanglement heralded by the detection of a lone photon: A subsequent perfect operation is quickly achieved by consuming this noisy resource. We require only two qubits per node, and can tolerate both path length variation and loss asymmetr","authors_text":"Earl T. Campbell, Simon C. Benjamin","cross_cats":[],"headline":"","license":"","primary_cat":"quant-ph","submitted_at":"2007-10-24T17:29:24Z","title":"Measurement based entanglement under conditions of extreme photon loss"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0710.4352","kind":"arxiv","version":4},"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":"sha256:1a32f53281b54f557eee402bcb3290a864c5251bac79e4da622c410df5af90cf","target":"record","created_at":"2026-07-04T15:43:24Z","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":"51ce42d12d7d6d9712ccf1bae409e223a1a41e8f1fd11300d8bd7ed463f09d36","cross_cats_sorted":[],"license":"","primary_cat":"quant-ph","submitted_at":"2007-10-24T17:29:24Z","title_canon_sha256":"9ddbeb4a84271e0c6ae28261ffbe9a315cb459c68f1e7b10c41c3bb21af38ecd"},"schema_version":"1.0","source":{"id":"0710.4352","kind":"arxiv","version":4}},"canonical_sha256":"b26b6e13a17fbf50ffa22c957bfaf60ba4d62a49dfc1f86a1e060a5e7499486d","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"b26b6e13a17fbf50ffa22c957bfaf60ba4d62a49dfc1f86a1e060a5e7499486d","first_computed_at":"2026-07-04T15:43:24.243187Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-04T15:43:24.243187Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"2UvhdL0delICuTYBa3t9eFIbDtDtgPoBi3j47so//MORnSjDw2faDibmRXEao67D9KJpyT5FXWWMq4E0QTxSCA==","signature_status":"signed_v1","signed_at":"2026-07-04T15:43:24.243537Z","signed_message":"canonical_sha256_bytes"},"source_id":"0710.4352","source_kind":"arxiv","source_version":4}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:1a32f53281b54f557eee402bcb3290a864c5251bac79e4da622c410df5af90cf","sha256:89ebd84ed0e9a4cdcc7dc853ee6620d322d0cbff5cb001fad296e7d45371d225"],"state_sha256":"56ea74fd065238631cd7a9d7836ab2adfc5e22cdac05d735efc6c546fb2edcc1"}