{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2014:JKJXKX7XA3YGZLSEG3ED3THOCR","short_pith_number":"pith:JKJXKX7X","canonical_record":{"source":{"id":"1407.7063","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2014-07-25T21:21:23Z","cross_cats_sorted":["cond-mat.other","math-ph","math.MP"],"title_canon_sha256":"fde2c25a7f6e31353514f793941001357b1361f452cf827375a5e37ac05b0e1f","abstract_canon_sha256":"6c57620720a3329f523d42d3cf06423172fe130765805428f4c2402944d0a642"},"schema_version":"1.0"},"canonical_sha256":"4a93755ff706f06cae4436c83dccee14487baf0fff18747f027d771c9ea40baa","source":{"kind":"arxiv","id":"1407.7063","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1407.7063","created_at":"2026-05-18T02:29:01Z"},{"alias_kind":"arxiv_version","alias_value":"1407.7063v2","created_at":"2026-05-18T02:29:01Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1407.7063","created_at":"2026-05-18T02:29:01Z"},{"alias_kind":"pith_short_12","alias_value":"JKJXKX7XA3YG","created_at":"2026-05-18T12:28:33Z"},{"alias_kind":"pith_short_16","alias_value":"JKJXKX7XA3YGZLSE","created_at":"2026-05-18T12:28:33Z"},{"alias_kind":"pith_short_8","alias_value":"JKJXKX7X","created_at":"2026-05-18T12:28:33Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2014:JKJXKX7XA3YGZLSEG3ED3THOCR","target":"record","payload":{"canonical_record":{"source":{"id":"1407.7063","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2014-07-25T21:21:23Z","cross_cats_sorted":["cond-mat.other","math-ph","math.MP"],"title_canon_sha256":"fde2c25a7f6e31353514f793941001357b1361f452cf827375a5e37ac05b0e1f","abstract_canon_sha256":"6c57620720a3329f523d42d3cf06423172fe130765805428f4c2402944d0a642"},"schema_version":"1.0"},"canonical_sha256":"4a93755ff706f06cae4436c83dccee14487baf0fff18747f027d771c9ea40baa","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:29:01.424533Z","signature_b64":"HLR/92lyrhfAGAoUBTPVKDsvXKSVeKX6423g/RsIritYb1U0Jk9jJ/j891+Yg+FPlG8goD5snFUsuyHYFwiZBw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"4a93755ff706f06cae4436c83dccee14487baf0fff18747f027d771c9ea40baa","last_reissued_at":"2026-05-18T02:29:01.424088Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:29:01.424088Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1407.7063","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":"2026-05-18T02:29:01Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"QCUnlk+yB3sHXx1Z52pR5klQGNCy/HRkgyMWnrvxQ/J8nJ+Urf3PxM+MH/5xcPLrOizmO2ExrYBkm+9jAcd3Bw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-27T07:15:15.758036Z"},"content_sha256":"ee13ab8d3ad505c0e85539caa906040eb0a51dbf0fc2cd938b47385ae4e258d2","schema_version":"1.0","event_id":"sha256:ee13ab8d3ad505c0e85539caa906040eb0a51dbf0fc2cd938b47385ae4e258d2"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2014:JKJXKX7XA3YGZLSEG3ED3THOCR","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Device-independent quantum reading and noise-assisted quantum transmitters","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cond-mat.other","math-ph","math.MP"],"primary_cat":"quant-ph","authors_text":"Daniela Buono, Fabrizio Illuminati, Wojciech Roga","submitted_at":"2014-07-25T21:21:23Z","abstract_excerpt":"In quantum reading, a quantum state of light (transmitter) is applied to read classical information. In the presence of noise or for sufficiently weak signals, quantum reading can outperform classical reading by enhanced state distinguishability. Here we show that the enhanced quantum efficiency depends on the presence in the transmitter of a particular type of quantum correlations, the discord of response. Different encodings and transmitters give rise to different levels of efficiency. Considering noisy quantum probes we show that squeezed thermal transmitters with non-symmetrically distribu"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1407.7063","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":""},"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":"2026-05-18T02:29:01Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"YBmKy5yU0BmEPksYst8qeL0XMtz2InnA9RO5RjYTecqCGVrYOXvxgH5VLqOp5GlkzaH20aG9sS22QROcQUvIDA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-27T07:15:15.758709Z"},"content_sha256":"4f90520023cf0a3a8c6b2cfd9bce99016314bd9a9cd042fa9f45add865122f49","schema_version":"1.0","event_id":"sha256:4f90520023cf0a3a8c6b2cfd9bce99016314bd9a9cd042fa9f45add865122f49"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/JKJXKX7XA3YGZLSEG3ED3THOCR/bundle.json","state_url":"https://pith.science/pith/JKJXKX7XA3YGZLSEG3ED3THOCR/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/JKJXKX7XA3YGZLSEG3ED3THOCR/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":"2026-05-27T07:15:15Z","links":{"resolver":"https://pith.science/pith/JKJXKX7XA3YGZLSEG3ED3THOCR","bundle":"https://pith.science/pith/JKJXKX7XA3YGZLSEG3ED3THOCR/bundle.json","state":"https://pith.science/pith/JKJXKX7XA3YGZLSEG3ED3THOCR/state.json","well_known_bundle":"https://pith.science/.well-known/pith/JKJXKX7XA3YGZLSEG3ED3THOCR/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2014:JKJXKX7XA3YGZLSEG3ED3THOCR","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":"6c57620720a3329f523d42d3cf06423172fe130765805428f4c2402944d0a642","cross_cats_sorted":["cond-mat.other","math-ph","math.MP"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2014-07-25T21:21:23Z","title_canon_sha256":"fde2c25a7f6e31353514f793941001357b1361f452cf827375a5e37ac05b0e1f"},"schema_version":"1.0","source":{"id":"1407.7063","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1407.7063","created_at":"2026-05-18T02:29:01Z"},{"alias_kind":"arxiv_version","alias_value":"1407.7063v2","created_at":"2026-05-18T02:29:01Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1407.7063","created_at":"2026-05-18T02:29:01Z"},{"alias_kind":"pith_short_12","alias_value":"JKJXKX7XA3YG","created_at":"2026-05-18T12:28:33Z"},{"alias_kind":"pith_short_16","alias_value":"JKJXKX7XA3YGZLSE","created_at":"2026-05-18T12:28:33Z"},{"alias_kind":"pith_short_8","alias_value":"JKJXKX7X","created_at":"2026-05-18T12:28:33Z"}],"graph_snapshots":[{"event_id":"sha256:4f90520023cf0a3a8c6b2cfd9bce99016314bd9a9cd042fa9f45add865122f49","target":"graph","created_at":"2026-05-18T02:29:01Z","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"},"paper":{"abstract_excerpt":"In quantum reading, a quantum state of light (transmitter) is applied to read classical information. In the presence of noise or for sufficiently weak signals, quantum reading can outperform classical reading by enhanced state distinguishability. Here we show that the enhanced quantum efficiency depends on the presence in the transmitter of a particular type of quantum correlations, the discord of response. Different encodings and transmitters give rise to different levels of efficiency. Considering noisy quantum probes we show that squeezed thermal transmitters with non-symmetrically distribu","authors_text":"Daniela Buono, Fabrizio Illuminati, Wojciech Roga","cross_cats":["cond-mat.other","math-ph","math.MP"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2014-07-25T21:21:23Z","title":"Device-independent quantum reading and noise-assisted quantum transmitters"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1407.7063","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:ee13ab8d3ad505c0e85539caa906040eb0a51dbf0fc2cd938b47385ae4e258d2","target":"record","created_at":"2026-05-18T02:29:01Z","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":"6c57620720a3329f523d42d3cf06423172fe130765805428f4c2402944d0a642","cross_cats_sorted":["cond-mat.other","math-ph","math.MP"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2014-07-25T21:21:23Z","title_canon_sha256":"fde2c25a7f6e31353514f793941001357b1361f452cf827375a5e37ac05b0e1f"},"schema_version":"1.0","source":{"id":"1407.7063","kind":"arxiv","version":2}},"canonical_sha256":"4a93755ff706f06cae4436c83dccee14487baf0fff18747f027d771c9ea40baa","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"4a93755ff706f06cae4436c83dccee14487baf0fff18747f027d771c9ea40baa","first_computed_at":"2026-05-18T02:29:01.424088Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:29:01.424088Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"HLR/92lyrhfAGAoUBTPVKDsvXKSVeKX6423g/RsIritYb1U0Jk9jJ/j891+Yg+FPlG8goD5snFUsuyHYFwiZBw==","signature_status":"signed_v1","signed_at":"2026-05-18T02:29:01.424533Z","signed_message":"canonical_sha256_bytes"},"source_id":"1407.7063","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:ee13ab8d3ad505c0e85539caa906040eb0a51dbf0fc2cd938b47385ae4e258d2","sha256:4f90520023cf0a3a8c6b2cfd9bce99016314bd9a9cd042fa9f45add865122f49"],"state_sha256":"e96377c8873894b14ff42e2b83a1c97b705040ee13cdc628cbd26f13ed8455ae"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"j/8x5i9Cc+/thEUw+htJiVoi6V2Db7Vq1cOJ/NnfTCBP0J1tueD/fUDcTCofhdq65sQrSeVIlcQbsMKqgjDhDA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-27T07:15:15.761937Z","bundle_sha256":"cff3516d0d9a5973ae4f8021371580bd14dbb11c436dae074086c442a6f4e4c2"}}