{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2008:6SNRITGJ57NWHYVLDWJHGLVGDK","short_pith_number":"pith:6SNRITGJ","canonical_record":{"source":{"id":"0810.2937","kind":"arxiv","version":3},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2008-10-16T14:20:59Z","cross_cats_sorted":[],"title_canon_sha256":"0b5078fd486e11846c169e65f4ca12cb9a0d7978d78d43a4f592251afa66ab2b","abstract_canon_sha256":"5ded4fb882346e0234dfce5e92ddec98ba2b2b9853ceb1cfcd29e47a0dd9d1cd"},"schema_version":"1.0"},"canonical_sha256":"f49b144cc9efdb63e2ab1d92732ea61abf3c06ffb39b6ba8f3685a2d98b8b9a6","source":{"kind":"arxiv","id":"0810.2937","version":3},"source_aliases":[{"alias_kind":"arxiv","alias_value":"0810.2937","created_at":"2026-07-04T15:43:43Z"},{"alias_kind":"arxiv_version","alias_value":"0810.2937v3","created_at":"2026-07-04T15:43:43Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0810.2937","created_at":"2026-07-04T15:43:43Z"},{"alias_kind":"pith_short_12","alias_value":"6SNRITGJ57NW","created_at":"2026-07-04T15:43:43Z"},{"alias_kind":"pith_short_16","alias_value":"6SNRITGJ57NWHYVL","created_at":"2026-07-04T15:43:43Z"},{"alias_kind":"pith_short_8","alias_value":"6SNRITGJ","created_at":"2026-07-04T15:43:43Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2008:6SNRITGJ57NWHYVLDWJHGLVGDK","target":"record","payload":{"canonical_record":{"source":{"id":"0810.2937","kind":"arxiv","version":3},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2008-10-16T14:20:59Z","cross_cats_sorted":[],"title_canon_sha256":"0b5078fd486e11846c169e65f4ca12cb9a0d7978d78d43a4f592251afa66ab2b","abstract_canon_sha256":"5ded4fb882346e0234dfce5e92ddec98ba2b2b9853ceb1cfcd29e47a0dd9d1cd"},"schema_version":"1.0"},"canonical_sha256":"f49b144cc9efdb63e2ab1d92732ea61abf3c06ffb39b6ba8f3685a2d98b8b9a6","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-04T15:43:43.068202Z","signature_b64":"2FKpldOUTAYgzZSmqgr+sTYW7RifTQZtDLauZ25zoQCyyjWnMvvTBPwsDpauRzrvubA68s6I+1eWuPzkqdb2Cw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"f49b144cc9efdb63e2ab1d92732ea61abf3c06ffb39b6ba8f3685a2d98b8b9a6","last_reissued_at":"2026-07-04T15:43:43.067863Z","signature_status":"signed_v1","first_computed_at":"2026-07-04T15:43:43.067863Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"0810.2937","source_version":3,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-07-04T15:43:43Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"mhzkEJY9BXc7jTSc44Zdt7RXLzReAiqUFQQ7yIPawu6ohg6kYtxX1BFt8mkqHNz/+1d0WU/+xo2z2CGz1nr+BQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-05T05:55:31.298087Z"},"content_sha256":"9e92172928e9299bd47d2ce3b35bcd6c1db1b6a4d9605e5226668b6fc5ba0211","schema_version":"1.0","event_id":"sha256:9e92172928e9299bd47d2ce3b35bcd6c1db1b6a4d9605e5226668b6fc5ba0211"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2008:6SNRITGJ57NWHYVLDWJHGLVGDK","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Quantum Random Access Codes with Shared Randomness","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"quant-ph","authors_text":"Andris Ambainis, Debbie Leung, Laura Mancinska, Maris Ozols","submitted_at":"2008-10-16T14:20:59Z","abstract_excerpt":"We consider a communication method, where the sender encodes n classical bits into 1 qubit and sends it to the receiver who performs a certain measurement depending on which of the initial bits must be recovered. This procedure is called (n,1,p) quantum random access code (QRAC) where p > 1/2 is its success probability. It is known that (2,1,0.85) and (3,1,0.79) QRACs (with no classical counterparts) exist and that (4,1,p) QRAC with p > 1/2 is not possible.\n  We extend this model with shared randomness (SR) that is accessible to both parties. Then (n,1,p) QRAC with SR and p > 1/2 exists for an"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0810.2937","kind":"arxiv","version":3},"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/0810.2937/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":"2026-07-04T15:43:43Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"G7Yr5O3sJXvbTzx4NBWKU39kPu7joXKfbUX1IZQ22/4Rb43G7LHmzsQnHezK7mg9Iin13EAdSJ5uhGA2SHfUDA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-05T05:55:31.298907Z"},"content_sha256":"4a6b71cc710db67f51d3218225cf92e8c07dc1cbb659bb4348f06b99e3f9d0c2","schema_version":"1.0","event_id":"sha256:4a6b71cc710db67f51d3218225cf92e8c07dc1cbb659bb4348f06b99e3f9d0c2"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/6SNRITGJ57NWHYVLDWJHGLVGDK/bundle.json","state_url":"https://pith.science/pith/6SNRITGJ57NWHYVLDWJHGLVGDK/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/6SNRITGJ57NWHYVLDWJHGLVGDK/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":"2026-08-05T05:55:31Z","links":{"resolver":"https://pith.science/pith/6SNRITGJ57NWHYVLDWJHGLVGDK","bundle":"https://pith.science/pith/6SNRITGJ57NWHYVLDWJHGLVGDK/bundle.json","state":"https://pith.science/pith/6SNRITGJ57NWHYVLDWJHGLVGDK/state.json","well_known_bundle":"https://pith.science/.well-known/pith/6SNRITGJ57NWHYVLDWJHGLVGDK/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2008:6SNRITGJ57NWHYVLDWJHGLVGDK","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":"5ded4fb882346e0234dfce5e92ddec98ba2b2b9853ceb1cfcd29e47a0dd9d1cd","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2008-10-16T14:20:59Z","title_canon_sha256":"0b5078fd486e11846c169e65f4ca12cb9a0d7978d78d43a4f592251afa66ab2b"},"schema_version":"1.0","source":{"id":"0810.2937","kind":"arxiv","version":3}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"0810.2937","created_at":"2026-07-04T15:43:43Z"},{"alias_kind":"arxiv_version","alias_value":"0810.2937v3","created_at":"2026-07-04T15:43:43Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0810.2937","created_at":"2026-07-04T15:43:43Z"},{"alias_kind":"pith_short_12","alias_value":"6SNRITGJ57NW","created_at":"2026-07-04T15:43:43Z"},{"alias_kind":"pith_short_16","alias_value":"6SNRITGJ57NWHYVL","created_at":"2026-07-04T15:43:43Z"},{"alias_kind":"pith_short_8","alias_value":"6SNRITGJ","created_at":"2026-07-04T15:43:43Z"}],"graph_snapshots":[{"event_id":"sha256:4a6b71cc710db67f51d3218225cf92e8c07dc1cbb659bb4348f06b99e3f9d0c2","target":"graph","created_at":"2026-07-04T15:43:43Z","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/0810.2937/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We consider a communication method, where the sender encodes n classical bits into 1 qubit and sends it to the receiver who performs a certain measurement depending on which of the initial bits must be recovered. This procedure is called (n,1,p) quantum random access code (QRAC) where p > 1/2 is its success probability. It is known that (2,1,0.85) and (3,1,0.79) QRACs (with no classical counterparts) exist and that (4,1,p) QRAC with p > 1/2 is not possible.\n  We extend this model with shared randomness (SR) that is accessible to both parties. Then (n,1,p) QRAC with SR and p > 1/2 exists for an","authors_text":"Andris Ambainis, Debbie Leung, Laura Mancinska, Maris Ozols","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2008-10-16T14:20:59Z","title":"Quantum Random Access Codes with Shared Randomness"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0810.2937","kind":"arxiv","version":3},"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":"sha256:9e92172928e9299bd47d2ce3b35bcd6c1db1b6a4d9605e5226668b6fc5ba0211","target":"record","created_at":"2026-07-04T15:43:43Z","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":"5ded4fb882346e0234dfce5e92ddec98ba2b2b9853ceb1cfcd29e47a0dd9d1cd","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2008-10-16T14:20:59Z","title_canon_sha256":"0b5078fd486e11846c169e65f4ca12cb9a0d7978d78d43a4f592251afa66ab2b"},"schema_version":"1.0","source":{"id":"0810.2937","kind":"arxiv","version":3}},"canonical_sha256":"f49b144cc9efdb63e2ab1d92732ea61abf3c06ffb39b6ba8f3685a2d98b8b9a6","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"f49b144cc9efdb63e2ab1d92732ea61abf3c06ffb39b6ba8f3685a2d98b8b9a6","first_computed_at":"2026-07-04T15:43:43.067863Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-04T15:43:43.067863Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"2FKpldOUTAYgzZSmqgr+sTYW7RifTQZtDLauZ25zoQCyyjWnMvvTBPwsDpauRzrvubA68s6I+1eWuPzkqdb2Cw==","signature_status":"signed_v1","signed_at":"2026-07-04T15:43:43.068202Z","signed_message":"canonical_sha256_bytes"},"source_id":"0810.2937","source_kind":"arxiv","source_version":3}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:9e92172928e9299bd47d2ce3b35bcd6c1db1b6a4d9605e5226668b6fc5ba0211","sha256:4a6b71cc710db67f51d3218225cf92e8c07dc1cbb659bb4348f06b99e3f9d0c2"],"state_sha256":"2ea1dc347216fe7cfebf959117ad0021df836557b4420e46063fbd85944ba14b"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"NqJjhLXCbPqCDdbDjNF8986ECda14823PZZQCYc8AcHibwgv2ptobkRgFB8HJ2OHkcLrX4q3ShINAe+SnObABA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-05T05:55:31.307271Z","bundle_sha256":"5888216846b6d74ab4450257aeec2b02252cff15aca417414665177809f2211c"}}