{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2001:WFZT5ZS6NXI4CLQAZWBWNW72NG","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":"79a4020583557b7dd4b9f3e8c1dcc91f3543013714c462101b82d1eb25546c4e","cross_cats_sorted":[],"license":"","primary_cat":"quant-ph","submitted_at":"2001-10-30T15:36:21Z","title_canon_sha256":"31cec2801b0a757e55c659a9c5097a8c2ecd7f8a970185e3256dcb562bc78ba9"},"schema_version":"1.0","source":{"id":"quant-ph/0110170","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"quant-ph/0110170","created_at":"2026-05-18T01:38:02Z"},{"alias_kind":"arxiv_version","alias_value":"quant-ph/0110170v2","created_at":"2026-05-18T01:38:02Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.quant-ph/0110170","created_at":"2026-05-18T01:38:02Z"},{"alias_kind":"pith_short_12","alias_value":"WFZT5ZS6NXI4","created_at":"2026-05-18T12:25:50Z"},{"alias_kind":"pith_short_16","alias_value":"WFZT5ZS6NXI4CLQA","created_at":"2026-05-18T12:25:50Z"},{"alias_kind":"pith_short_8","alias_value":"WFZT5ZS6","created_at":"2026-05-18T12:25:50Z"}],"graph_snapshots":[{"event_id":"sha256:7bd911ebc62752bf2fea0734f7032ea5737769aa30e7e2665d6bc2acc9a79962","target":"graph","created_at":"2026-05-18T01:38:02Z","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":"The group theoretical aspect of the description of passive lossless optical four-ports (beam splitters) is revisited. It is shown through an example, that this approach can be useful in understanding interferometric schemes where a low number of photons interfere. The formalism is extended to passive lossless optical six-ports, their SU(3)-theory is outlined.","authors_text":"Jozsef Janszky, Matyas Koniorczyk","cross_cats":[],"headline":"","license":"","primary_cat":"quant-ph","submitted_at":"2001-10-30T15:36:21Z","title":"Photon number conservation and photon interference"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"quant-ph/0110170","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:ce2e30e440384aee1a73e43aa35e5d1b9ca36fc1ae33535e58469959859d6b1d","target":"record","created_at":"2026-05-18T01:38:02Z","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":"79a4020583557b7dd4b9f3e8c1dcc91f3543013714c462101b82d1eb25546c4e","cross_cats_sorted":[],"license":"","primary_cat":"quant-ph","submitted_at":"2001-10-30T15:36:21Z","title_canon_sha256":"31cec2801b0a757e55c659a9c5097a8c2ecd7f8a970185e3256dcb562bc78ba9"},"schema_version":"1.0","source":{"id":"quant-ph/0110170","kind":"arxiv","version":2}},"canonical_sha256":"b1733ee65e6dd1c12e00cd8366dbfa698dc5a7702ddf280a0577d4481883989b","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"b1733ee65e6dd1c12e00cd8366dbfa698dc5a7702ddf280a0577d4481883989b","first_computed_at":"2026-05-18T01:38:02.391252Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:38:02.391252Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"8QarUDX0kPEAMkVq9/PNtRflIopgesoXLmiiyXEcep8L8rUWTKM7wUFNsvb8/g9mJZQMbYqeaNdV/TwIQB5ACg==","signature_status":"signed_v1","signed_at":"2026-05-18T01:38:02.391897Z","signed_message":"canonical_sha256_bytes"},"source_id":"quant-ph/0110170","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:ce2e30e440384aee1a73e43aa35e5d1b9ca36fc1ae33535e58469959859d6b1d","sha256:7bd911ebc62752bf2fea0734f7032ea5737769aa30e7e2665d6bc2acc9a79962"],"state_sha256":"df28ad557d8d48cdefc5d0f9decaf6e5ace98719bff45bc6718453d3d3b74ffe"}