{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2022:ATDBNGD6VRJXLFWIDOB4CCVGK6","short_pith_number":"pith:ATDBNGD6","canonical_record":{"source":{"id":"2201.13445","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2022-01-31T18:56:31Z","cross_cats_sorted":["cs.CR"],"title_canon_sha256":"32ad3a0066ccc80bf947a96a624b0134e3cc6eafb13cf51786202af49f429772","abstract_canon_sha256":"4868ef4760de93b60cf20338b5270cc5487c422f8bb9596999ba2a2b509d6d58"},"schema_version":"1.0"},"canonical_sha256":"04c616987eac537596c81b83c10aa657b572625eda789a8544fb005ced3d0b6b","source":{"kind":"arxiv","id":"2201.13445","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2201.13445","created_at":"2026-07-05T04:54:50Z"},{"alias_kind":"arxiv_version","alias_value":"2201.13445v2","created_at":"2026-07-05T04:54:50Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2201.13445","created_at":"2026-07-05T04:54:50Z"},{"alias_kind":"pith_short_12","alias_value":"ATDBNGD6VRJX","created_at":"2026-07-05T04:54:50Z"},{"alias_kind":"pith_short_16","alias_value":"ATDBNGD6VRJXLFWI","created_at":"2026-07-05T04:54:50Z"},{"alias_kind":"pith_short_8","alias_value":"ATDBNGD6","created_at":"2026-07-05T04:54:50Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2022:ATDBNGD6VRJXLFWIDOB4CCVGK6","target":"record","payload":{"canonical_record":{"source":{"id":"2201.13445","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2022-01-31T18:56:31Z","cross_cats_sorted":["cs.CR"],"title_canon_sha256":"32ad3a0066ccc80bf947a96a624b0134e3cc6eafb13cf51786202af49f429772","abstract_canon_sha256":"4868ef4760de93b60cf20338b5270cc5487c422f8bb9596999ba2a2b509d6d58"},"schema_version":"1.0"},"canonical_sha256":"04c616987eac537596c81b83c10aa657b572625eda789a8544fb005ced3d0b6b","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T04:54:50.735888Z","signature_b64":"uJ0ZCO0Zb6GenZNaDCGic1mgn2PRBHgN5xFY8ChczVkkH5WYCrVc0OHu8MMJk06ub6lv7G3mQ3IvO8Eq3Ht4AQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"04c616987eac537596c81b83c10aa657b572625eda789a8544fb005ced3d0b6b","last_reissued_at":"2026-07-05T04:54:50.735452Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T04:54:50.735452Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2201.13445","source_version":2,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-07-05T04:54:50Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"zmSGN+C/bTERSnWmVHCPIvqwf69DauZ7mfBlPZCjrxerCLqm3/qqagPvQ2xNUm4alvCbWID5ihceqYmY57UjDQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-04T15:35:30.297848Z"},"content_sha256":"94717ef95a42be34830838ef3778daaade96c3cb967e24503e3fdbc7aff27c7f","schema_version":"1.0","event_id":"sha256:94717ef95a42be34830838ef3778daaade96c3cb967e24503e3fdbc7aff27c7f"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2022:ATDBNGD6VRJXLFWIDOB4CCVGK6","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Quantum cryptography with classical communication: parallel remote state preparation for copy-protection, verification, and more","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cs.CR"],"primary_cat":"quant-ph","authors_text":"Alexander Poremba, Alexandru Gheorghiu, Tony Metger","submitted_at":"2022-01-31T18:56:31Z","abstract_excerpt":"Quantum mechanical effects have enabled the construction of cryptographic primitives that are impossible classically. For example, quantum copy-protection allows for a program to be encoded in a quantum state in such a way that the program can be evaluated, but not copied. Many of these cryptographic primitives are two-party protocols, where one party, Bob, has full quantum computational capabilities, and the other party, Alice, is only required to send random BB84 states to Bob. In this work, we show how such protocols can generically be converted to ones where Alice is fully classical, assum"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2201.13445","kind":"arxiv","version":2},"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/2201.13445/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":"2026-07-05T04:54:50Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"ZfXqYmh0Jajj7RWqExeqLXYwCQ/X/Smkh8TW4iJTvKPa9gnEQl35YlQCH2QN1QIhHt5pjawZHOtcl8ObGhncDg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-04T15:35:30.298368Z"},"content_sha256":"9695420519f74af7f37e6d98bf57400fa46ee33393f64f81bfc5b10ad8e4bee1","schema_version":"1.0","event_id":"sha256:9695420519f74af7f37e6d98bf57400fa46ee33393f64f81bfc5b10ad8e4bee1"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/ATDBNGD6VRJXLFWIDOB4CCVGK6/bundle.json","state_url":"https://pith.science/pith/ATDBNGD6VRJXLFWIDOB4CCVGK6/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/ATDBNGD6VRJXLFWIDOB4CCVGK6/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":"2026-08-04T15:35:30Z","links":{"resolver":"https://pith.science/pith/ATDBNGD6VRJXLFWIDOB4CCVGK6","bundle":"https://pith.science/pith/ATDBNGD6VRJXLFWIDOB4CCVGK6/bundle.json","state":"https://pith.science/pith/ATDBNGD6VRJXLFWIDOB4CCVGK6/state.json","well_known_bundle":"https://pith.science/.well-known/pith/ATDBNGD6VRJXLFWIDOB4CCVGK6/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2022:ATDBNGD6VRJXLFWIDOB4CCVGK6","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":"4868ef4760de93b60cf20338b5270cc5487c422f8bb9596999ba2a2b509d6d58","cross_cats_sorted":["cs.CR"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2022-01-31T18:56:31Z","title_canon_sha256":"32ad3a0066ccc80bf947a96a624b0134e3cc6eafb13cf51786202af49f429772"},"schema_version":"1.0","source":{"id":"2201.13445","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2201.13445","created_at":"2026-07-05T04:54:50Z"},{"alias_kind":"arxiv_version","alias_value":"2201.13445v2","created_at":"2026-07-05T04:54:50Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2201.13445","created_at":"2026-07-05T04:54:50Z"},{"alias_kind":"pith_short_12","alias_value":"ATDBNGD6VRJX","created_at":"2026-07-05T04:54:50Z"},{"alias_kind":"pith_short_16","alias_value":"ATDBNGD6VRJXLFWI","created_at":"2026-07-05T04:54:50Z"},{"alias_kind":"pith_short_8","alias_value":"ATDBNGD6","created_at":"2026-07-05T04:54:50Z"}],"graph_snapshots":[{"event_id":"sha256:9695420519f74af7f37e6d98bf57400fa46ee33393f64f81bfc5b10ad8e4bee1","target":"graph","created_at":"2026-07-05T04:54:50Z","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/2201.13445/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Quantum mechanical effects have enabled the construction of cryptographic primitives that are impossible classically. For example, quantum copy-protection allows for a program to be encoded in a quantum state in such a way that the program can be evaluated, but not copied. Many of these cryptographic primitives are two-party protocols, where one party, Bob, has full quantum computational capabilities, and the other party, Alice, is only required to send random BB84 states to Bob. In this work, we show how such protocols can generically be converted to ones where Alice is fully classical, assum","authors_text":"Alexander Poremba, Alexandru Gheorghiu, Tony Metger","cross_cats":["cs.CR"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2022-01-31T18:56:31Z","title":"Quantum cryptography with classical communication: parallel remote state preparation for copy-protection, verification, and more"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2201.13445","kind":"arxiv","version":2},"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":"sha256:94717ef95a42be34830838ef3778daaade96c3cb967e24503e3fdbc7aff27c7f","target":"record","created_at":"2026-07-05T04:54:50Z","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":"4868ef4760de93b60cf20338b5270cc5487c422f8bb9596999ba2a2b509d6d58","cross_cats_sorted":["cs.CR"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2022-01-31T18:56:31Z","title_canon_sha256":"32ad3a0066ccc80bf947a96a624b0134e3cc6eafb13cf51786202af49f429772"},"schema_version":"1.0","source":{"id":"2201.13445","kind":"arxiv","version":2}},"canonical_sha256":"04c616987eac537596c81b83c10aa657b572625eda789a8544fb005ced3d0b6b","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"04c616987eac537596c81b83c10aa657b572625eda789a8544fb005ced3d0b6b","first_computed_at":"2026-07-05T04:54:50.735452Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T04:54:50.735452Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"uJ0ZCO0Zb6GenZNaDCGic1mgn2PRBHgN5xFY8ChczVkkH5WYCrVc0OHu8MMJk06ub6lv7G3mQ3IvO8Eq3Ht4AQ==","signature_status":"signed_v1","signed_at":"2026-07-05T04:54:50.735888Z","signed_message":"canonical_sha256_bytes"},"source_id":"2201.13445","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:94717ef95a42be34830838ef3778daaade96c3cb967e24503e3fdbc7aff27c7f","sha256:9695420519f74af7f37e6d98bf57400fa46ee33393f64f81bfc5b10ad8e4bee1"],"state_sha256":"c0cac803962124891f82be8c7b381ba13291b6e3efc89f9f987c6f8046541bf3"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"KQF7Pok09opyblQ12N3DQj+pX1jb+6yLvHHjoDbHgbLOR7VyQmAIviwL0o3RhuoACCA4VSxLHpYCQW5eHQ5hBQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-04T15:35:30.302266Z","bundle_sha256":"f546a8052df59c80445151b9ae37376f23e742e5bdb7438502d0be82bdc054ad"}}