{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2025:UPTODUDXYMU4URM5TWTBISXQ65","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":"e2d5306d29d6ca69625068b0081a381b16a7e7e12ca26ee7766580e4ff3df2e6","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2025-12-09T10:30:47Z","title_canon_sha256":"ec2650fa049a64f5944b17c2224dfe2974fc7f7645b88a550168b5e7b6609f6d"},"schema_version":"1.0","source":{"id":"2512.08458","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2512.08458","created_at":"2026-07-31T01:33:00Z"},{"alias_kind":"arxiv_version","alias_value":"2512.08458v2","created_at":"2026-07-31T01:33:00Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2512.08458","created_at":"2026-07-31T01:33:00Z"},{"alias_kind":"pith_short_12","alias_value":"UPTODUDXYMU4","created_at":"2026-07-31T01:33:00Z"},{"alias_kind":"pith_short_16","alias_value":"UPTODUDXYMU4URM5","created_at":"2026-07-31T01:33:00Z"},{"alias_kind":"pith_short_8","alias_value":"UPTODUDX","created_at":"2026-07-31T01:33:00Z"}],"graph_snapshots":[{"event_id":"sha256:0d32696f5ba5cd3e8f12053db006997c615293b3f9f2514a10b776e34f3aa986","target":"graph","created_at":"2026-07-31T01:33:00Z","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/2512.08458/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Entangled states of photons form the foundation of quantum communication, computation, and metrology. Yet their generation remains fundamentally constrained: in the absence of intrinsic photon-photon interactions, the generation of such states is inherently probabilistic rather than deterministic. The prevalent technique of post-selection verifies the creation of an entangled state by detecting and thus destroying it. Heralding offers a solution in which measuring ancillary photons in auxiliary modes signals the state generation without the need to measure it. Here, we introduce and experiment","authors_text":"Alison Goldingay, Diego N. Bernal-Garc\\'ia, Elnaz Bazzazi, Emanuele Polino, Farzad Ghafari, Hassan Jamal Latief, Nora Tischler, Sergei Slussarenko, Simon White, Sukhjit P. Singh, Sven Rogge","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2025-12-09T10:30:47Z","title":"Heralded generation of a three-mode NOON state"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2512.08458","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":"sha256:68a17a20c53747f3286c4824a62463fb1c1f483dfaff0620997a29dc720e8c71","target":"record","created_at":"2026-07-31T01:33:00Z","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":"e2d5306d29d6ca69625068b0081a381b16a7e7e12ca26ee7766580e4ff3df2e6","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2025-12-09T10:30:47Z","title_canon_sha256":"ec2650fa049a64f5944b17c2224dfe2974fc7f7645b88a550168b5e7b6609f6d"},"schema_version":"1.0","source":{"id":"2512.08458","kind":"arxiv","version":2}},"canonical_sha256":"a3e6e1d077c329ca459d9da6144af0f76ce3c2aac81b48273bce5c905e557027","receipt":{"builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"a3e6e1d077c329ca459d9da6144af0f76ce3c2aac81b48273bce5c905e557027","first_computed_at":"2026-07-31T01:33:00.822651Z","kind":"pith_receipt","last_reissued_at":"2026-07-31T01:33:00.822651Z","receipt_version":"0.3","signature_status":"unsigned_v0"},"source_id":"2512.08458","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:68a17a20c53747f3286c4824a62463fb1c1f483dfaff0620997a29dc720e8c71","sha256:0d32696f5ba5cd3e8f12053db006997c615293b3f9f2514a10b776e34f3aa986"],"state_sha256":"a403ad2f92d17d29d4553d5543e0f719e3a5e65974b2097abf588c2753dcaada"}