{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:1999:JYFP2ERNJZ55BJNUZTN3XREI6V","short_pith_number":"pith:JYFP2ERN","canonical_record":{"source":{"id":"quant-ph/9910072","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"quant-ph","submitted_at":"1999-10-15T15:52:35Z","cross_cats_sorted":[],"title_canon_sha256":"9323bc12b2b61c0f889b9f7ebc4f75a621cfdf325be7ec6ffa68ab5082994ed9","abstract_canon_sha256":"4b6200432b68dfa060d68e8496aee64d80520132586fb2ed69ddd9be0dd56de6"},"schema_version":"1.0"},"canonical_sha256":"4e0afd122d4e7bd0a5b4ccdbbbc488f579b341dd919a9b514c3baf634325ff71","source":{"kind":"arxiv","id":"quant-ph/9910072","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"quant-ph/9910072","created_at":"2026-07-04T14:47:28Z"},{"alias_kind":"arxiv_version","alias_value":"quant-ph/9910072v1","created_at":"2026-07-04T14:47:28Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.quant-ph/9910072","created_at":"2026-07-04T14:47:28Z"},{"alias_kind":"pith_short_12","alias_value":"JYFP2ERNJZ55","created_at":"2026-07-04T14:47:28Z"},{"alias_kind":"pith_short_16","alias_value":"JYFP2ERNJZ55BJNU","created_at":"2026-07-04T14:47:28Z"},{"alias_kind":"pith_short_8","alias_value":"JYFP2ERN","created_at":"2026-07-04T14:47:28Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:1999:JYFP2ERNJZ55BJNUZTN3XREI6V","target":"record","payload":{"canonical_record":{"source":{"id":"quant-ph/9910072","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"quant-ph","submitted_at":"1999-10-15T15:52:35Z","cross_cats_sorted":[],"title_canon_sha256":"9323bc12b2b61c0f889b9f7ebc4f75a621cfdf325be7ec6ffa68ab5082994ed9","abstract_canon_sha256":"4b6200432b68dfa060d68e8496aee64d80520132586fb2ed69ddd9be0dd56de6"},"schema_version":"1.0"},"canonical_sha256":"4e0afd122d4e7bd0a5b4ccdbbbc488f579b341dd919a9b514c3baf634325ff71","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-04T14:47:28.947416Z","signature_b64":"drl5pFBvItBRBUkKDRaTBEgAA+OSiPepH2s0AIBu5HWY9UPjP2ifkM7sMTAw/6mS991In2mJkeBJiITxQ2NKBQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"4e0afd122d4e7bd0a5b4ccdbbbc488f579b341dd919a9b514c3baf634325ff71","last_reissued_at":"2026-07-04T14:47:28.947055Z","signature_status":"signed_v1","first_computed_at":"2026-07-04T14:47:28.947055Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"quant-ph/9910072","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":"2026-07-04T14:47:28Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"xvoiyoXkeSwY9+N4HUKZ7R5RE2sDvPQi7Lzg2J1r+ReaaKXQA3y6GVyg+I8/32MzhmdeMwC7StjLts1LusV1Cw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-13T19:51:35.418363Z"},"content_sha256":"fd39f52a5b0cb2291c428f913e9dc7c39d24eb587e3abe12e9192d0e8735e9f0","schema_version":"1.0","event_id":"sha256:fd39f52a5b0cb2291c428f913e9dc7c39d24eb587e3abe12e9192d0e8735e9f0"},{"event_type":"graph_snapshot","subject_pith_number":"pith:1999:JYFP2ERNJZ55BJNUZTN3XREI6V","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Quantum secure identification using entanglement and catalysis","license":"","headline":"","cross_cats":[],"primary_cat":"quant-ph","authors_text":"Howard N. Barnum","submitted_at":"1999-10-15T15:52:35Z","abstract_excerpt":"I consider the use of entanglement between two parties to enable one to authenticate her identity to another over a quantum communication channel. Exploiting the phenomenon of entanglement-catalyzed transformations between pure states gives a potentially reusable entangled identification token. In analyzing this, I consider the independently interesting problem of the best possible approximation to a given pure entangled state realizable using local actions and classical communication by parties sharing a different entangled state."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"quant-ph/9910072","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/9910072/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":"2026-07-04T14:47:28Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"N0RzcuO4nQaog0HArrV0ebuiCzegTiZ1MqbmYRwtyG4oJCrWA/6omwyZQ+yKpwRGFJGCFUOL+80qcKCNPfrXBQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-13T19:51:35.419375Z"},"content_sha256":"ca9c58fd6e7a4fb8f58f28f1439434e6f33942a21f2f82d6712bfd59580c5354","schema_version":"1.0","event_id":"sha256:ca9c58fd6e7a4fb8f58f28f1439434e6f33942a21f2f82d6712bfd59580c5354"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/JYFP2ERNJZ55BJNUZTN3XREI6V/bundle.json","state_url":"https://pith.science/pith/JYFP2ERNJZ55BJNUZTN3XREI6V/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/JYFP2ERNJZ55BJNUZTN3XREI6V/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":"2026-08-13T19:51:35Z","links":{"resolver":"https://pith.science/pith/JYFP2ERNJZ55BJNUZTN3XREI6V","bundle":"https://pith.science/pith/JYFP2ERNJZ55BJNUZTN3XREI6V/bundle.json","state":"https://pith.science/pith/JYFP2ERNJZ55BJNUZTN3XREI6V/state.json","well_known_bundle":"https://pith.science/.well-known/pith/JYFP2ERNJZ55BJNUZTN3XREI6V/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:1999:JYFP2ERNJZ55BJNUZTN3XREI6V","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":"4b6200432b68dfa060d68e8496aee64d80520132586fb2ed69ddd9be0dd56de6","cross_cats_sorted":[],"license":"","primary_cat":"quant-ph","submitted_at":"1999-10-15T15:52:35Z","title_canon_sha256":"9323bc12b2b61c0f889b9f7ebc4f75a621cfdf325be7ec6ffa68ab5082994ed9"},"schema_version":"1.0","source":{"id":"quant-ph/9910072","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"quant-ph/9910072","created_at":"2026-07-04T14:47:28Z"},{"alias_kind":"arxiv_version","alias_value":"quant-ph/9910072v1","created_at":"2026-07-04T14:47:28Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.quant-ph/9910072","created_at":"2026-07-04T14:47:28Z"},{"alias_kind":"pith_short_12","alias_value":"JYFP2ERNJZ55","created_at":"2026-07-04T14:47:28Z"},{"alias_kind":"pith_short_16","alias_value":"JYFP2ERNJZ55BJNU","created_at":"2026-07-04T14:47:28Z"},{"alias_kind":"pith_short_8","alias_value":"JYFP2ERN","created_at":"2026-07-04T14:47:28Z"}],"graph_snapshots":[{"event_id":"sha256:ca9c58fd6e7a4fb8f58f28f1439434e6f33942a21f2f82d6712bfd59580c5354","target":"graph","created_at":"2026-07-04T14:47:28Z","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/9910072/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"I consider the use of entanglement between two parties to enable one to authenticate her identity to another over a quantum communication channel. Exploiting the phenomenon of entanglement-catalyzed transformations between pure states gives a potentially reusable entangled identification token. In analyzing this, I consider the independently interesting problem of the best possible approximation to a given pure entangled state realizable using local actions and classical communication by parties sharing a different entangled state.","authors_text":"Howard N. Barnum","cross_cats":[],"headline":"","license":"","primary_cat":"quant-ph","submitted_at":"1999-10-15T15:52:35Z","title":"Quantum secure identification using entanglement and catalysis"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"quant-ph/9910072","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:fd39f52a5b0cb2291c428f913e9dc7c39d24eb587e3abe12e9192d0e8735e9f0","target":"record","created_at":"2026-07-04T14:47:28Z","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":"4b6200432b68dfa060d68e8496aee64d80520132586fb2ed69ddd9be0dd56de6","cross_cats_sorted":[],"license":"","primary_cat":"quant-ph","submitted_at":"1999-10-15T15:52:35Z","title_canon_sha256":"9323bc12b2b61c0f889b9f7ebc4f75a621cfdf325be7ec6ffa68ab5082994ed9"},"schema_version":"1.0","source":{"id":"quant-ph/9910072","kind":"arxiv","version":1}},"canonical_sha256":"4e0afd122d4e7bd0a5b4ccdbbbc488f579b341dd919a9b514c3baf634325ff71","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"4e0afd122d4e7bd0a5b4ccdbbbc488f579b341dd919a9b514c3baf634325ff71","first_computed_at":"2026-07-04T14:47:28.947055Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-04T14:47:28.947055Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"drl5pFBvItBRBUkKDRaTBEgAA+OSiPepH2s0AIBu5HWY9UPjP2ifkM7sMTAw/6mS991In2mJkeBJiITxQ2NKBQ==","signature_status":"signed_v1","signed_at":"2026-07-04T14:47:28.947416Z","signed_message":"canonical_sha256_bytes"},"source_id":"quant-ph/9910072","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:fd39f52a5b0cb2291c428f913e9dc7c39d24eb587e3abe12e9192d0e8735e9f0","sha256:ca9c58fd6e7a4fb8f58f28f1439434e6f33942a21f2f82d6712bfd59580c5354"],"state_sha256":"f54557d1910df98adee662ea1a0ca44aad9329a3f56fd2a9751d8a3f51ef72b6"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"HJDQ4fnByDPbBh8Q3+hAqIKYE/BU4FQM7D0PBXulUS7H+ECNXOGcodyNQqRzG84djHmkmpKsIAZCfCZkE4XDCA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-13T19:51:35.459893Z","bundle_sha256":"a0b504fe359606fad56a73a5934b56bd86c16cd4056152429e93886b943dbb23"}}