{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2003:PJTG5TR5DIUKRXLUZ7XC3XR2FW","short_pith_number":"pith:PJTG5TR5","canonical_record":{"source":{"id":"quant-ph/0309090","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"quant-ph","submitted_at":"2003-09-10T18:47:33Z","cross_cats_sorted":[],"title_canon_sha256":"6bf1b04dbc0aeb69440481cc7f2d8b679790d95f4d1a0b3e8acf7b2c8da23013","abstract_canon_sha256":"07a9b17e22faa5481e08e495570f22611169c6844888a0accc7d88669c155dee"},"schema_version":"1.0"},"canonical_sha256":"7a666ece3d1a28a8dd74cfee2dde3a2d889e843b855268bb7ad62740f21c5d85","source":{"kind":"arxiv","id":"quant-ph/0309090","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"quant-ph/0309090","created_at":"2026-07-04T16:42:36Z"},{"alias_kind":"arxiv_version","alias_value":"quant-ph/0309090v1","created_at":"2026-07-04T16:42:36Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.quant-ph/0309090","created_at":"2026-07-04T16:42:36Z"},{"alias_kind":"pith_short_12","alias_value":"PJTG5TR5DIUK","created_at":"2026-07-04T16:42:36Z"},{"alias_kind":"pith_short_16","alias_value":"PJTG5TR5DIUKRXLU","created_at":"2026-07-04T16:42:36Z"},{"alias_kind":"pith_short_8","alias_value":"PJTG5TR5","created_at":"2026-07-04T16:42:36Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2003:PJTG5TR5DIUKRXLUZ7XC3XR2FW","target":"record","payload":{"canonical_record":{"source":{"id":"quant-ph/0309090","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"quant-ph","submitted_at":"2003-09-10T18:47:33Z","cross_cats_sorted":[],"title_canon_sha256":"6bf1b04dbc0aeb69440481cc7f2d8b679790d95f4d1a0b3e8acf7b2c8da23013","abstract_canon_sha256":"07a9b17e22faa5481e08e495570f22611169c6844888a0accc7d88669c155dee"},"schema_version":"1.0"},"canonical_sha256":"7a666ece3d1a28a8dd74cfee2dde3a2d889e843b855268bb7ad62740f21c5d85","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-04T16:42:36.956029Z","signature_b64":"F1NxoAN+MmmD1lycIWbBfzCCmgInXHOBGnpSheydI3RCpHdwSiXZlKN19LJ+tp7HMUWe/mfgFIBt6snAsPNXDA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"7a666ece3d1a28a8dd74cfee2dde3a2d889e843b855268bb7ad62740f21c5d85","last_reissued_at":"2026-07-04T16:42:36.955620Z","signature_status":"signed_v1","first_computed_at":"2026-07-04T16:42:36.955620Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"quant-ph/0309090","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":"2026-07-04T16:42:36Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"pB45VaV5GUqOLHij4eYwH+eP+O77Hv3P4ac9kz4qAX4U3PS8GmV0W23QbAsHTnOSn8CwZvf7RQAXLPCAP/13Cw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-03T16:18:42.203422Z"},"content_sha256":"9ab47cb1508f940ab9a358ecbe46bb3fbc046222a32cecc5b29e51c8b8847e95","schema_version":"1.0","event_id":"sha256:9ab47cb1508f940ab9a358ecbe46bb3fbc046222a32cecc5b29e51c8b8847e95"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2003:PJTG5TR5DIUKRXLUZ7XC3XR2FW","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Optimal State Discrimination Using Particle Statistics","license":"","headline":"","cross_cats":[],"primary_cat":"quant-ph","authors_text":"A. Ekert, N. Paunkovic, S. Bose, V. Vedral, Y. Omar","submitted_at":"2003-09-10T18:47:33Z","abstract_excerpt":"We present an application of particle statistics to the problem of optimal ambiguous discrimination of quantum states. The states to be discriminated are encoded in the internal degrees of freedom of identical particles, and we use the bunching and antibunching of the external degrees of freedom to discriminate between various internal states. We show that we can achieve the optimal single-shot discrimination probability using only the effects of particle statistics. We discuss interesting applications of our method to detecting entanglement and purifying mixed states. Our scheme can easily be"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"quant-ph/0309090","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/quant-ph/0309090/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"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":"2026-07-04T16:42:36Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"5F1XPwH+muABeFLFVN9YzXIv3CVAr7N1Ipx+5F76zQyJN2XP2fZDbUi7P3CqibDLFWdOb7NcJ/ltOHmnAdaUAQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-03T16:18:42.203938Z"},"content_sha256":"439a9be1e54dde76e43fb983bc6be6a1fef95d0e8d406256a2e7c733c6dcca83","schema_version":"1.0","event_id":"sha256:439a9be1e54dde76e43fb983bc6be6a1fef95d0e8d406256a2e7c733c6dcca83"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/PJTG5TR5DIUKRXLUZ7XC3XR2FW/bundle.json","state_url":"https://pith.science/pith/PJTG5TR5DIUKRXLUZ7XC3XR2FW/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/PJTG5TR5DIUKRXLUZ7XC3XR2FW/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":"2026-08-03T16:18:42Z","links":{"resolver":"https://pith.science/pith/PJTG5TR5DIUKRXLUZ7XC3XR2FW","bundle":"https://pith.science/pith/PJTG5TR5DIUKRXLUZ7XC3XR2FW/bundle.json","state":"https://pith.science/pith/PJTG5TR5DIUKRXLUZ7XC3XR2FW/state.json","well_known_bundle":"https://pith.science/.well-known/pith/PJTG5TR5DIUKRXLUZ7XC3XR2FW/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2003:PJTG5TR5DIUKRXLUZ7XC3XR2FW","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":"07a9b17e22faa5481e08e495570f22611169c6844888a0accc7d88669c155dee","cross_cats_sorted":[],"license":"","primary_cat":"quant-ph","submitted_at":"2003-09-10T18:47:33Z","title_canon_sha256":"6bf1b04dbc0aeb69440481cc7f2d8b679790d95f4d1a0b3e8acf7b2c8da23013"},"schema_version":"1.0","source":{"id":"quant-ph/0309090","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"quant-ph/0309090","created_at":"2026-07-04T16:42:36Z"},{"alias_kind":"arxiv_version","alias_value":"quant-ph/0309090v1","created_at":"2026-07-04T16:42:36Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.quant-ph/0309090","created_at":"2026-07-04T16:42:36Z"},{"alias_kind":"pith_short_12","alias_value":"PJTG5TR5DIUK","created_at":"2026-07-04T16:42:36Z"},{"alias_kind":"pith_short_16","alias_value":"PJTG5TR5DIUKRXLU","created_at":"2026-07-04T16:42:36Z"},{"alias_kind":"pith_short_8","alias_value":"PJTG5TR5","created_at":"2026-07-04T16:42:36Z"}],"graph_snapshots":[{"event_id":"sha256:439a9be1e54dde76e43fb983bc6be6a1fef95d0e8d406256a2e7c733c6dcca83","target":"graph","created_at":"2026-07-04T16:42:36Z","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/quant-ph/0309090/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We present an application of particle statistics to the problem of optimal ambiguous discrimination of quantum states. The states to be discriminated are encoded in the internal degrees of freedom of identical particles, and we use the bunching and antibunching of the external degrees of freedom to discriminate between various internal states. We show that we can achieve the optimal single-shot discrimination probability using only the effects of particle statistics. We discuss interesting applications of our method to detecting entanglement and purifying mixed states. Our scheme can easily be","authors_text":"A. Ekert, N. Paunkovic, S. Bose, V. Vedral, Y. Omar","cross_cats":[],"headline":"","license":"","primary_cat":"quant-ph","submitted_at":"2003-09-10T18:47:33Z","title":"Optimal State Discrimination Using Particle Statistics"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"quant-ph/0309090","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":"sha256:9ab47cb1508f940ab9a358ecbe46bb3fbc046222a32cecc5b29e51c8b8847e95","target":"record","created_at":"2026-07-04T16:42:36Z","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":"07a9b17e22faa5481e08e495570f22611169c6844888a0accc7d88669c155dee","cross_cats_sorted":[],"license":"","primary_cat":"quant-ph","submitted_at":"2003-09-10T18:47:33Z","title_canon_sha256":"6bf1b04dbc0aeb69440481cc7f2d8b679790d95f4d1a0b3e8acf7b2c8da23013"},"schema_version":"1.0","source":{"id":"quant-ph/0309090","kind":"arxiv","version":1}},"canonical_sha256":"7a666ece3d1a28a8dd74cfee2dde3a2d889e843b855268bb7ad62740f21c5d85","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"7a666ece3d1a28a8dd74cfee2dde3a2d889e843b855268bb7ad62740f21c5d85","first_computed_at":"2026-07-04T16:42:36.955620Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-04T16:42:36.955620Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"F1NxoAN+MmmD1lycIWbBfzCCmgInXHOBGnpSheydI3RCpHdwSiXZlKN19LJ+tp7HMUWe/mfgFIBt6snAsPNXDA==","signature_status":"signed_v1","signed_at":"2026-07-04T16:42:36.956029Z","signed_message":"canonical_sha256_bytes"},"source_id":"quant-ph/0309090","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:9ab47cb1508f940ab9a358ecbe46bb3fbc046222a32cecc5b29e51c8b8847e95","sha256:439a9be1e54dde76e43fb983bc6be6a1fef95d0e8d406256a2e7c733c6dcca83"],"state_sha256":"54112895cad45f299f22543c2ee232a571364c844d649043af2a34ce8b43dd4a"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"gXzudHoaeJGB/FuNaZpxi2zZONmbYu8hQ3pzGXZYJyh4R616N/5mYqlwA8H0gtqXgxGshQ0K0y/PSawwM1KpDg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-03T16:18:42.209458Z","bundle_sha256":"074bf0256db834cae513836b59a565e9b1babb88e0f084e40d74595f75477925"}}