{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2026:VRGPVEY4GJFIYB2NLB4T5QYNDP","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":"cad0e35d32381d239662b241683e5fdd712ca9f41fd66bdf0555d79ae65a62ff","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"quant-ph","submitted_at":"2026-07-27T17:56:55Z","title_canon_sha256":"5a5770ab781059fb224010f401f36b3f6ba942ccc7de3226ba2d0d89ee310dbe"},"schema_version":"1.0","source":{"id":"2607.24728","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2607.24728","created_at":"2026-07-28T02:24:24Z"},{"alias_kind":"arxiv_version","alias_value":"2607.24728v1","created_at":"2026-07-28T02:24:24Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2607.24728","created_at":"2026-07-28T02:24:24Z"},{"alias_kind":"pith_short_12","alias_value":"VRGPVEY4GJFI","created_at":"2026-07-28T02:24:24Z"},{"alias_kind":"pith_short_16","alias_value":"VRGPVEY4GJFIYB2N","created_at":"2026-07-28T02:24:24Z"},{"alias_kind":"pith_short_8","alias_value":"VRGPVEY4","created_at":"2026-07-28T02:24:24Z"}],"graph_snapshots":[{"event_id":"sha256:a80c488806656a828b68f768166e50c9cc9670b537ed61a5c3b9c130434ea915","target":"graph","created_at":"2026-07-28T02:24:24Z","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/2607.24728/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Passive linear optics is a restricted model of quantum computation, with complexity-theoretic evidence of quantum advantage for sampling tasks and low losses that make it attractive for near-term algorithms. In qubit architectures, a body of work has revealed a close connection between barren plateaus and classical simulability. Whether an analogous tradeoff exists for bosonic systems remains largely unexplored. Building on a recently developed representation-theoretic framework for moments of random passive linear-optical circuits, we characterize the concentration of expectation values for r","authors_text":"Elham Kashefi, Hela Mhiri, Hugo Thomas, L\\'eo Monbroussou, Zo\\\"e Holmes","cross_cats":[],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"quant-ph","submitted_at":"2026-07-27T17:56:55Z","title":"Classical simulation and model concentration in passive linear optics"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2607.24728","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:edf420dd4b760be25f9c309aa0dca0d9f6c3ad3e946f3f6853767bdb7744c314","target":"record","created_at":"2026-07-28T02:24:24Z","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":"cad0e35d32381d239662b241683e5fdd712ca9f41fd66bdf0555d79ae65a62ff","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"quant-ph","submitted_at":"2026-07-27T17:56:55Z","title_canon_sha256":"5a5770ab781059fb224010f401f36b3f6ba942ccc7de3226ba2d0d89ee310dbe"},"schema_version":"1.0","source":{"id":"2607.24728","kind":"arxiv","version":1}},"canonical_sha256":"ac4cfa931c324a8c074d58793ec30d1bfa801e50e852e627068bdb5a806fdfa0","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"ac4cfa931c324a8c074d58793ec30d1bfa801e50e852e627068bdb5a806fdfa0","first_computed_at":"2026-07-28T02:24:24.451012Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-28T02:24:24.451012Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"UaN5+1NAMtEl54mTAoPcqiLlbf1NbCYBJWuitQU+oZ4YxuPfl0cqAqgeQ7LZriv63vv1nze6cp8mF0VkG6DgBg==","signature_status":"signed_v1","signed_at":"2026-07-28T02:24:24.451874Z","signed_message":"canonical_sha256_bytes"},"source_id":"2607.24728","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:edf420dd4b760be25f9c309aa0dca0d9f6c3ad3e946f3f6853767bdb7744c314","sha256:a80c488806656a828b68f768166e50c9cc9670b537ed61a5c3b9c130434ea915"],"state_sha256":"53d69f4699f6567b68b09ce8fa8dfb93cc94642b71ef26dfcca8acdb90605b3e"}