{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2013:SDAUZSRWEQJWEGSWG5SFUC3VLR","short_pith_number":"pith:SDAUZSRW","canonical_record":{"source":{"id":"1311.4049","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2013-11-16T11:25:29Z","cross_cats_sorted":[],"title_canon_sha256":"c210dfe3bd4681ea0a9fa21b9615189b944d0ff33742f14b2dbb1666d365d16d","abstract_canon_sha256":"6674447d4beae9335dc8b80d5ea95e3c26a0f7734d8cc70b7d0abeaa2dff3432"},"schema_version":"1.0"},"canonical_sha256":"90c14cca362413621a5637645a0b755c4630206415ceaf312ca0435e30178219","source":{"kind":"arxiv","id":"1311.4049","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1311.4049","created_at":"2026-05-18T01:46:24Z"},{"alias_kind":"arxiv_version","alias_value":"1311.4049v1","created_at":"2026-05-18T01:46:24Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1311.4049","created_at":"2026-05-18T01:46:24Z"},{"alias_kind":"pith_short_12","alias_value":"SDAUZSRWEQJW","created_at":"2026-05-18T12:27:59Z"},{"alias_kind":"pith_short_16","alias_value":"SDAUZSRWEQJWEGSW","created_at":"2026-05-18T12:27:59Z"},{"alias_kind":"pith_short_8","alias_value":"SDAUZSRW","created_at":"2026-05-18T12:27:59Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2013:SDAUZSRWEQJWEGSWG5SFUC3VLR","target":"record","payload":{"canonical_record":{"source":{"id":"1311.4049","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2013-11-16T11:25:29Z","cross_cats_sorted":[],"title_canon_sha256":"c210dfe3bd4681ea0a9fa21b9615189b944d0ff33742f14b2dbb1666d365d16d","abstract_canon_sha256":"6674447d4beae9335dc8b80d5ea95e3c26a0f7734d8cc70b7d0abeaa2dff3432"},"schema_version":"1.0"},"canonical_sha256":"90c14cca362413621a5637645a0b755c4630206415ceaf312ca0435e30178219","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:46:24.187546Z","signature_b64":"lngIYIubouVWjFLkLQCcp54j0J5Jdjs6+Ld3FnG6UgYBYXFFg1kxsB6mSF6uQbNdZHWH5a+jOCG9TtVAZSuFBQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"90c14cca362413621a5637645a0b755c4630206415ceaf312ca0435e30178219","last_reissued_at":"2026-05-18T01:46:24.187005Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:46:24.187005Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1311.4049","source_version":1,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T01:46:24Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"RvoCLdZjaCtVju2ucrw4lXJHr0NgS6TUOeeAjP8rIGvCFq+JGz6xR/nzwZTu7tZSsAEn7P/NWsd/WM97JkZFBw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-04T03:51:56.320247Z"},"content_sha256":"d7f7b6112354eb1d4806525556084eccadd4e957574caa711bef206f444f4186","schema_version":"1.0","event_id":"sha256:d7f7b6112354eb1d4806525556084eccadd4e957574caa711bef206f444f4186"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2013:SDAUZSRWEQJWEGSWG5SFUC3VLR","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Characterizing the non-classicality of mesoscopic optical twin-beam states","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"quant-ph","authors_text":"Alessia Allevi, Jan Perina Jr., Marco Lamperti, Maria Bondani, Ondrej Haderka, Radek Machulka, Vaclav Michalek","submitted_at":"2013-11-16T11:25:29Z","abstract_excerpt":"We present a robust tool to analyze nonclassical properties of multimode twin-beam states in the mesoscopic photon-number domain. The measurements are performed by direct detection. The analysis exploits three different non-classicality criteria for detected photons exhibiting complementary behavior in the explored intensity regime. Joint signal-idler photon-number distributions and quasi-distributions of integrated intensities are determined and compared with the corresponding distributions of detected photons. Experimental conditions optimal for nonclassical properties of twin-beam states ar"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1311.4049","kind":"arxiv","version":1},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"references":{"count":0,"sample":[],"resolved_work":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","internal_anchors":0},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"author_claims":{"count":0,"strong_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"builder_version":"pith-number-builder-2026-05-17-v1"},"verdict_id":null},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T01:46:24Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"G0vhaZuDoBNfTcF63WlOKQpl4FpISruWwU+xPNH2+7QTeMscTM8BNNLG1MNmT2d7ob7pOfYj9cX0qMnbjVUdCw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-04T03:51:56.320625Z"},"content_sha256":"352746100c967b5768b6ee582089a9a375fd72801e5939ef8f4c54edd302a7a1","schema_version":"1.0","event_id":"sha256:352746100c967b5768b6ee582089a9a375fd72801e5939ef8f4c54edd302a7a1"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/SDAUZSRWEQJWEGSWG5SFUC3VLR/bundle.json","state_url":"https://pith.science/pith/SDAUZSRWEQJWEGSWG5SFUC3VLR/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/SDAUZSRWEQJWEGSWG5SFUC3VLR/bundle.json","status":"primary"}],"public_keys":[{"key_id":"pith-v1-2026-05","algorithm":"ed25519","format":"raw","public_key_b64":"stVStoiQhXFxp4s2pdzPNoqVNBMojDU/fJ2db5S3CbM=","public_key_hex":"b2d552b68890857171a78b36a5dccf368a953413288c353f7c9d9d6f94b709b3","fingerprint_sha256_b32_first128bits":"RVFV5Z2OI2J3ZUO7ERDEBCYNKS","fingerprint_sha256_hex":"8d4b5ee74e4693bcd1df2446408b0d54","rotates_at":null,"url":"https://pith.science/pith-signing-key.json","notes":"Pith uses this Ed25519 key to sign canonical record SHA-256 digests. Verify with: ed25519_verify(public_key, message=canonical_sha256_bytes, signature=base64decode(signature_b64))."}],"merge_version":"pith-open-graph-merge-v1","built_at":"2026-06-04T03:51:56Z","links":{"resolver":"https://pith.science/pith/SDAUZSRWEQJWEGSWG5SFUC3VLR","bundle":"https://pith.science/pith/SDAUZSRWEQJWEGSWG5SFUC3VLR/bundle.json","state":"https://pith.science/pith/SDAUZSRWEQJWEGSWG5SFUC3VLR/state.json","well_known_bundle":"https://pith.science/.well-known/pith/SDAUZSRWEQJWEGSWG5SFUC3VLR/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2013:SDAUZSRWEQJWEGSWG5SFUC3VLR","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":"6674447d4beae9335dc8b80d5ea95e3c26a0f7734d8cc70b7d0abeaa2dff3432","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2013-11-16T11:25:29Z","title_canon_sha256":"c210dfe3bd4681ea0a9fa21b9615189b944d0ff33742f14b2dbb1666d365d16d"},"schema_version":"1.0","source":{"id":"1311.4049","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1311.4049","created_at":"2026-05-18T01:46:24Z"},{"alias_kind":"arxiv_version","alias_value":"1311.4049v1","created_at":"2026-05-18T01:46:24Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1311.4049","created_at":"2026-05-18T01:46:24Z"},{"alias_kind":"pith_short_12","alias_value":"SDAUZSRWEQJW","created_at":"2026-05-18T12:27:59Z"},{"alias_kind":"pith_short_16","alias_value":"SDAUZSRWEQJWEGSW","created_at":"2026-05-18T12:27:59Z"},{"alias_kind":"pith_short_8","alias_value":"SDAUZSRW","created_at":"2026-05-18T12:27:59Z"}],"graph_snapshots":[{"event_id":"sha256:352746100c967b5768b6ee582089a9a375fd72801e5939ef8f4c54edd302a7a1","target":"graph","created_at":"2026-05-18T01:46:24Z","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"},"paper":{"abstract_excerpt":"We present a robust tool to analyze nonclassical properties of multimode twin-beam states in the mesoscopic photon-number domain. The measurements are performed by direct detection. The analysis exploits three different non-classicality criteria for detected photons exhibiting complementary behavior in the explored intensity regime. Joint signal-idler photon-number distributions and quasi-distributions of integrated intensities are determined and compared with the corresponding distributions of detected photons. Experimental conditions optimal for nonclassical properties of twin-beam states ar","authors_text":"Alessia Allevi, Jan Perina Jr., Marco Lamperti, Maria Bondani, Ondrej Haderka, Radek Machulka, Vaclav Michalek","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2013-11-16T11:25:29Z","title":"Characterizing the non-classicality of mesoscopic optical twin-beam states"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1311.4049","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:d7f7b6112354eb1d4806525556084eccadd4e957574caa711bef206f444f4186","target":"record","created_at":"2026-05-18T01:46:24Z","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":"6674447d4beae9335dc8b80d5ea95e3c26a0f7734d8cc70b7d0abeaa2dff3432","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2013-11-16T11:25:29Z","title_canon_sha256":"c210dfe3bd4681ea0a9fa21b9615189b944d0ff33742f14b2dbb1666d365d16d"},"schema_version":"1.0","source":{"id":"1311.4049","kind":"arxiv","version":1}},"canonical_sha256":"90c14cca362413621a5637645a0b755c4630206415ceaf312ca0435e30178219","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"90c14cca362413621a5637645a0b755c4630206415ceaf312ca0435e30178219","first_computed_at":"2026-05-18T01:46:24.187005Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:46:24.187005Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"lngIYIubouVWjFLkLQCcp54j0J5Jdjs6+Ld3FnG6UgYBYXFFg1kxsB6mSF6uQbNdZHWH5a+jOCG9TtVAZSuFBQ==","signature_status":"signed_v1","signed_at":"2026-05-18T01:46:24.187546Z","signed_message":"canonical_sha256_bytes"},"source_id":"1311.4049","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:d7f7b6112354eb1d4806525556084eccadd4e957574caa711bef206f444f4186","sha256:352746100c967b5768b6ee582089a9a375fd72801e5939ef8f4c54edd302a7a1"],"state_sha256":"fa0d40d530527a667498909d711c52cd96a3a8f0bb79f6c20d7b680197f90c6f"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"4iliWG8rimDok9KE68DApLtWbfU/37M+SckYLH7WLM2LwHG8/G5hkrssoccYS0/COH/39fTkbqZYEPS0SavpAw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-04T03:51:56.322543Z","bundle_sha256":"4361ae0881f0e8e2d56b87da164982c6ae2102796f1bee2d3daeb05e1c4e266f"}}