{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2006:33R5SC2WVJKXAQIVX44J74GIFF","short_pith_number":"pith:33R5SC2W","canonical_record":{"source":{"id":"quant-ph/0604207","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"quant-ph","submitted_at":"2006-04-27T18:59:38Z","cross_cats_sorted":[],"title_canon_sha256":"fd84172750afaf9d24de10941c814455e6e0ee19c61cb667ab72d5975c87ef4b","abstract_canon_sha256":"a28cf612de6e65950058da1a9a920b64e05309c93eaf3dfa79e524eadf60b336"},"schema_version":"1.0"},"canonical_sha256":"dee3d90b56aa55704115bf389ff0c8296855bd5bad4c2d99ef13cd4239bd2b98","source":{"kind":"arxiv","id":"quant-ph/0604207","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"quant-ph/0604207","created_at":"2026-07-04T17:03:00Z"},{"alias_kind":"arxiv_version","alias_value":"quant-ph/0604207v1","created_at":"2026-07-04T17:03:00Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.quant-ph/0604207","created_at":"2026-07-04T17:03:00Z"},{"alias_kind":"pith_short_12","alias_value":"33R5SC2WVJKX","created_at":"2026-07-04T17:03:00Z"},{"alias_kind":"pith_short_16","alias_value":"33R5SC2WVJKXAQIV","created_at":"2026-07-04T17:03:00Z"},{"alias_kind":"pith_short_8","alias_value":"33R5SC2W","created_at":"2026-07-04T17:03:00Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2006:33R5SC2WVJKXAQIVX44J74GIFF","target":"record","payload":{"canonical_record":{"source":{"id":"quant-ph/0604207","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"quant-ph","submitted_at":"2006-04-27T18:59:38Z","cross_cats_sorted":[],"title_canon_sha256":"fd84172750afaf9d24de10941c814455e6e0ee19c61cb667ab72d5975c87ef4b","abstract_canon_sha256":"a28cf612de6e65950058da1a9a920b64e05309c93eaf3dfa79e524eadf60b336"},"schema_version":"1.0"},"canonical_sha256":"dee3d90b56aa55704115bf389ff0c8296855bd5bad4c2d99ef13cd4239bd2b98","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-04T17:03:00.061606Z","signature_b64":"iqBlKIQmmVg+d+3D1sTy9LyH9QNRwaVXw+tlTCPjLOkI7LtE8YFcQz20dV78e8zMJo/JqOtZQSortEKbr1lHCg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"dee3d90b56aa55704115bf389ff0c8296855bd5bad4c2d99ef13cd4239bd2b98","last_reissued_at":"2026-07-04T17:03:00.061238Z","signature_status":"signed_v1","first_computed_at":"2026-07-04T17:03:00.061238Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"quant-ph/0604207","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":"2026-07-04T17:03:00Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"cUgh+CJIdFfwgZ29xUe9W3JFH/ghOw1sDglsYhCDA2kQ/gbppI6F5QkE8dcwls0QwwUe2L1HFb4RjPQlzZosCw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-09T06:46:16.803093Z"},"content_sha256":"4dddd0594a9f86d8408cc0f76c3a19dddb6fa79a6ab1ebbd30e3b9fcf59a68cd","schema_version":"1.0","event_id":"sha256:4dddd0594a9f86d8408cc0f76c3a19dddb6fa79a6ab1ebbd30e3b9fcf59a68cd"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2006:33R5SC2WVJKXAQIVX44J74GIFF","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Quantum mutual information and the one-time pad","license":"","headline":"","cross_cats":[],"primary_cat":"quant-ph","authors_text":"Benjamin Schumacher, Michael D. Westmoreland","submitted_at":"2006-04-27T18:59:38Z","abstract_excerpt":"Alice and Bob share a correlated composite quantum system AB. If AB is used as the key for a one-time pad cryptographic system, we show that the maximum amount of information that Alice can send securely to Bob is the quantum mutual information of AB."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"quant-ph/0604207","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/0604207/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":"2026-07-04T17:03:00Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"BS7QwbknVbMhzlSSB66nqWUpLxZZ5mLREVs697CpnAZsopnxn8EbN0lPEx9Kd5fY4Ve4izSTGZvsIrdMonMWCQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-09T06:46:16.803734Z"},"content_sha256":"f03ed7da59df3cd25055ccdc533d85f5b526364cc999eead84330a32f19d9727","schema_version":"1.0","event_id":"sha256:f03ed7da59df3cd25055ccdc533d85f5b526364cc999eead84330a32f19d9727"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/33R5SC2WVJKXAQIVX44J74GIFF/bundle.json","state_url":"https://pith.science/pith/33R5SC2WVJKXAQIVX44J74GIFF/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/33R5SC2WVJKXAQIVX44J74GIFF/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":"2026-07-09T06:46:16Z","links":{"resolver":"https://pith.science/pith/33R5SC2WVJKXAQIVX44J74GIFF","bundle":"https://pith.science/pith/33R5SC2WVJKXAQIVX44J74GIFF/bundle.json","state":"https://pith.science/pith/33R5SC2WVJKXAQIVX44J74GIFF/state.json","well_known_bundle":"https://pith.science/.well-known/pith/33R5SC2WVJKXAQIVX44J74GIFF/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2006:33R5SC2WVJKXAQIVX44J74GIFF","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":"a28cf612de6e65950058da1a9a920b64e05309c93eaf3dfa79e524eadf60b336","cross_cats_sorted":[],"license":"","primary_cat":"quant-ph","submitted_at":"2006-04-27T18:59:38Z","title_canon_sha256":"fd84172750afaf9d24de10941c814455e6e0ee19c61cb667ab72d5975c87ef4b"},"schema_version":"1.0","source":{"id":"quant-ph/0604207","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"quant-ph/0604207","created_at":"2026-07-04T17:03:00Z"},{"alias_kind":"arxiv_version","alias_value":"quant-ph/0604207v1","created_at":"2026-07-04T17:03:00Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.quant-ph/0604207","created_at":"2026-07-04T17:03:00Z"},{"alias_kind":"pith_short_12","alias_value":"33R5SC2WVJKX","created_at":"2026-07-04T17:03:00Z"},{"alias_kind":"pith_short_16","alias_value":"33R5SC2WVJKXAQIV","created_at":"2026-07-04T17:03:00Z"},{"alias_kind":"pith_short_8","alias_value":"33R5SC2W","created_at":"2026-07-04T17:03:00Z"}],"graph_snapshots":[{"event_id":"sha256:f03ed7da59df3cd25055ccdc533d85f5b526364cc999eead84330a32f19d9727","target":"graph","created_at":"2026-07-04T17:03:00Z","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/0604207/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Alice and Bob share a correlated composite quantum system AB. If AB is used as the key for a one-time pad cryptographic system, we show that the maximum amount of information that Alice can send securely to Bob is the quantum mutual information of AB.","authors_text":"Benjamin Schumacher, Michael D. Westmoreland","cross_cats":[],"headline":"","license":"","primary_cat":"quant-ph","submitted_at":"2006-04-27T18:59:38Z","title":"Quantum mutual information and the one-time pad"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"quant-ph/0604207","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":"sha256:4dddd0594a9f86d8408cc0f76c3a19dddb6fa79a6ab1ebbd30e3b9fcf59a68cd","target":"record","created_at":"2026-07-04T17:03:00Z","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":"a28cf612de6e65950058da1a9a920b64e05309c93eaf3dfa79e524eadf60b336","cross_cats_sorted":[],"license":"","primary_cat":"quant-ph","submitted_at":"2006-04-27T18:59:38Z","title_canon_sha256":"fd84172750afaf9d24de10941c814455e6e0ee19c61cb667ab72d5975c87ef4b"},"schema_version":"1.0","source":{"id":"quant-ph/0604207","kind":"arxiv","version":1}},"canonical_sha256":"dee3d90b56aa55704115bf389ff0c8296855bd5bad4c2d99ef13cd4239bd2b98","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"dee3d90b56aa55704115bf389ff0c8296855bd5bad4c2d99ef13cd4239bd2b98","first_computed_at":"2026-07-04T17:03:00.061238Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-04T17:03:00.061238Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"iqBlKIQmmVg+d+3D1sTy9LyH9QNRwaVXw+tlTCPjLOkI7LtE8YFcQz20dV78e8zMJo/JqOtZQSortEKbr1lHCg==","signature_status":"signed_v1","signed_at":"2026-07-04T17:03:00.061606Z","signed_message":"canonical_sha256_bytes"},"source_id":"quant-ph/0604207","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:4dddd0594a9f86d8408cc0f76c3a19dddb6fa79a6ab1ebbd30e3b9fcf59a68cd","sha256:f03ed7da59df3cd25055ccdc533d85f5b526364cc999eead84330a32f19d9727"],"state_sha256":"fcf3bce8162a807e3bdf265e5ddc4eb62eb2233c9ca86822d4ea232ca355d2e4"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"nUZ/hmiDtMyrYj/UNNlkgJ+FuVZxnmwvYZQSu/ht7L3exSJb97M5+BTGWBzhGrosopfghFOySDWDkI1LoIYKAg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-07-09T06:46:16.807071Z","bundle_sha256":"dc646cb35b9e502de68423a793b0698b34c65d281231e33f4f352524b7695d13"}}