{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2025:PATT75AWEVHNA4XQVSJUODFCMD","short_pith_number":"pith:PATT75AW","canonical_record":{"source":{"id":"2506.06466","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2025-06-06T18:48:39Z","cross_cats_sorted":[],"title_canon_sha256":"1aefa6b2ac8a57776584502cdecc6e2a92f9c7b6a6dba1d1a12c3d67e10f9132","abstract_canon_sha256":"b113a2e9031f86fe2ab325d5d89fd5ac1c9196584799b6738b02cb32d47dfc5a"},"schema_version":"1.0"},"canonical_sha256":"78273ff416254ed072f0ac93470ca260ca45f3028388b4166fac8e2c9678c0ca","source":{"kind":"arxiv","id":"2506.06466","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2506.06466","created_at":"2026-07-05T11:17:50Z"},{"alias_kind":"arxiv_version","alias_value":"2506.06466v1","created_at":"2026-07-05T11:17:50Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2506.06466","created_at":"2026-07-05T11:17:50Z"},{"alias_kind":"pith_short_12","alias_value":"PATT75AWEVHN","created_at":"2026-07-05T11:17:50Z"},{"alias_kind":"pith_short_16","alias_value":"PATT75AWEVHNA4XQ","created_at":"2026-07-05T11:17:50Z"},{"alias_kind":"pith_short_8","alias_value":"PATT75AW","created_at":"2026-07-05T11:17:50Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2025:PATT75AWEVHNA4XQVSJUODFCMD","target":"record","payload":{"canonical_record":{"source":{"id":"2506.06466","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2025-06-06T18:48:39Z","cross_cats_sorted":[],"title_canon_sha256":"1aefa6b2ac8a57776584502cdecc6e2a92f9c7b6a6dba1d1a12c3d67e10f9132","abstract_canon_sha256":"b113a2e9031f86fe2ab325d5d89fd5ac1c9196584799b6738b02cb32d47dfc5a"},"schema_version":"1.0"},"canonical_sha256":"78273ff416254ed072f0ac93470ca260ca45f3028388b4166fac8e2c9678c0ca","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T11:17:50.561080Z","signature_b64":"sQxkexrMaqZwTL8HVNLwyteW68wbYX9ZHGdOiKACASiqDwYhXaW/7q6jW0mZIpG3tWGGYqgltKUeeXVzNc+uAA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"78273ff416254ed072f0ac93470ca260ca45f3028388b4166fac8e2c9678c0ca","last_reissued_at":"2026-07-05T11:17:50.560599Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T11:17:50.560599Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2506.06466","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":"2026-07-05T11:17:50Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"VuOlel+IaKtFUFqohX+TGhe0Kdp86WViRfeXpK+WgTvLvgN6Ur9hST/PFzDcySroMXW5HDF2aIiiW/yLWSrqCQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-08T17:19:51.926714Z"},"content_sha256":"51698e40eefc7dc5bc73d47536202c80fa57b3f8f7c0f0e053f9f1193981248f","schema_version":"1.0","event_id":"sha256:51698e40eefc7dc5bc73d47536202c80fa57b3f8f7c0f0e053f9f1193981248f"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2025:PATT75AWEVHNA4XQVSJUODFCMD","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Unbounded entanglement-sustaining sequential local quantum state discrimination","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"quant-ph","authors_text":"Chirag Srivastava, Debarupa Saha, Kornikar Sen, Priya Ghosh, Ujjwal Sen","submitted_at":"2025-06-06T18:48:39Z","abstract_excerpt":"Two pure orthogonal quantum states can be perfectly distinguished by sequential local action of multiple pairs of parties. However, this process typically leads to the complete dissolution of entanglement in the states being discriminated. We propose a protocol that allows an arbitrary number of pairs of parties to distinguish between any two orthogonal, entangled, two-qubit pure states using local quantum operations and classical communication, with a success probability greater than that of random guessing, while ensuring that at each step, the individual ensemble states retain a finite amou"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2506.06466","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/2506.06466/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":"2026-07-05T11:17:50Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"mup1ra+Jiw6X0ITvF3XvrVuaT3DNiGYJxzrXp1T0eOf/eW+GbyNqCUR6hYZV2O9KLjksNaCf4viVXNLlZDKaCQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-08T17:19:51.927202Z"},"content_sha256":"0222bafc1f40191404ef0a769bd55203906f00915cad1e92de10173a5684e2e7","schema_version":"1.0","event_id":"sha256:0222bafc1f40191404ef0a769bd55203906f00915cad1e92de10173a5684e2e7"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/PATT75AWEVHNA4XQVSJUODFCMD/bundle.json","state_url":"https://pith.science/pith/PATT75AWEVHNA4XQVSJUODFCMD/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/PATT75AWEVHNA4XQVSJUODFCMD/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":"2026-08-08T17:19:51Z","links":{"resolver":"https://pith.science/pith/PATT75AWEVHNA4XQVSJUODFCMD","bundle":"https://pith.science/pith/PATT75AWEVHNA4XQVSJUODFCMD/bundle.json","state":"https://pith.science/pith/PATT75AWEVHNA4XQVSJUODFCMD/state.json","well_known_bundle":"https://pith.science/.well-known/pith/PATT75AWEVHNA4XQVSJUODFCMD/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2025:PATT75AWEVHNA4XQVSJUODFCMD","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":"b113a2e9031f86fe2ab325d5d89fd5ac1c9196584799b6738b02cb32d47dfc5a","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2025-06-06T18:48:39Z","title_canon_sha256":"1aefa6b2ac8a57776584502cdecc6e2a92f9c7b6a6dba1d1a12c3d67e10f9132"},"schema_version":"1.0","source":{"id":"2506.06466","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2506.06466","created_at":"2026-07-05T11:17:50Z"},{"alias_kind":"arxiv_version","alias_value":"2506.06466v1","created_at":"2026-07-05T11:17:50Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2506.06466","created_at":"2026-07-05T11:17:50Z"},{"alias_kind":"pith_short_12","alias_value":"PATT75AWEVHN","created_at":"2026-07-05T11:17:50Z"},{"alias_kind":"pith_short_16","alias_value":"PATT75AWEVHNA4XQ","created_at":"2026-07-05T11:17:50Z"},{"alias_kind":"pith_short_8","alias_value":"PATT75AW","created_at":"2026-07-05T11:17:50Z"}],"graph_snapshots":[{"event_id":"sha256:0222bafc1f40191404ef0a769bd55203906f00915cad1e92de10173a5684e2e7","target":"graph","created_at":"2026-07-05T11:17:50Z","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/2506.06466/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Two pure orthogonal quantum states can be perfectly distinguished by sequential local action of multiple pairs of parties. However, this process typically leads to the complete dissolution of entanglement in the states being discriminated. We propose a protocol that allows an arbitrary number of pairs of parties to distinguish between any two orthogonal, entangled, two-qubit pure states using local quantum operations and classical communication, with a success probability greater than that of random guessing, while ensuring that at each step, the individual ensemble states retain a finite amou","authors_text":"Chirag Srivastava, Debarupa Saha, Kornikar Sen, Priya Ghosh, Ujjwal Sen","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2025-06-06T18:48:39Z","title":"Unbounded entanglement-sustaining sequential local quantum state discrimination"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2506.06466","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":"sha256:51698e40eefc7dc5bc73d47536202c80fa57b3f8f7c0f0e053f9f1193981248f","target":"record","created_at":"2026-07-05T11:17:50Z","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":"b113a2e9031f86fe2ab325d5d89fd5ac1c9196584799b6738b02cb32d47dfc5a","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2025-06-06T18:48:39Z","title_canon_sha256":"1aefa6b2ac8a57776584502cdecc6e2a92f9c7b6a6dba1d1a12c3d67e10f9132"},"schema_version":"1.0","source":{"id":"2506.06466","kind":"arxiv","version":1}},"canonical_sha256":"78273ff416254ed072f0ac93470ca260ca45f3028388b4166fac8e2c9678c0ca","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"78273ff416254ed072f0ac93470ca260ca45f3028388b4166fac8e2c9678c0ca","first_computed_at":"2026-07-05T11:17:50.560599Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T11:17:50.560599Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"sQxkexrMaqZwTL8HVNLwyteW68wbYX9ZHGdOiKACASiqDwYhXaW/7q6jW0mZIpG3tWGGYqgltKUeeXVzNc+uAA==","signature_status":"signed_v1","signed_at":"2026-07-05T11:17:50.561080Z","signed_message":"canonical_sha256_bytes"},"source_id":"2506.06466","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:51698e40eefc7dc5bc73d47536202c80fa57b3f8f7c0f0e053f9f1193981248f","sha256:0222bafc1f40191404ef0a769bd55203906f00915cad1e92de10173a5684e2e7"],"state_sha256":"c7143ae2f7ba1b1637e40ff18822f5a4a6284b8f1e442b9556917b0a353fe56f"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"UfCYhh04oFnqRAkjV7X4KXrHp7kmw+RhvGlBOjV+FVcN4Wj28s8fDUzgZR4lSBTOF/iOlXAzIGWS2UEucTAjAQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-08T17:19:51.931597Z","bundle_sha256":"f39a0449ab73e49a8af6fddbbd28764adb0998e96ce11fdea1e67d10611b4da1"}}