{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2016:GEAYDQCWDWHWBBNZA6HOD2WE7C","short_pith_number":"pith:GEAYDQCW","canonical_record":{"source":{"id":"1605.04922","kind":"arxiv","version":3},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2016-05-16T20:01:37Z","cross_cats_sorted":["cs.IT","math.IT"],"title_canon_sha256":"ef2e7411c7a3feef9ff35966d5da133c5c4ccc6eb0e90699af720611813226d8","abstract_canon_sha256":"e389906e23839e411a4db54df39c90f0073fcb1022ba5acaa79f0e95758f5c43"},"schema_version":"1.0"},"canonical_sha256":"310181c0561d8f6085b9078ee1eac4f8a3b1c7c24daed347c66c7937c8f9b2db","source":{"kind":"arxiv","id":"1605.04922","version":3},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1605.04922","created_at":"2026-05-18T00:51:37Z"},{"alias_kind":"arxiv_version","alias_value":"1605.04922v3","created_at":"2026-05-18T00:51:37Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1605.04922","created_at":"2026-05-18T00:51:37Z"},{"alias_kind":"pith_short_12","alias_value":"GEAYDQCWDWHW","created_at":"2026-05-18T12:30:19Z"},{"alias_kind":"pith_short_16","alias_value":"GEAYDQCWDWHWBBNZ","created_at":"2026-05-18T12:30:19Z"},{"alias_kind":"pith_short_8","alias_value":"GEAYDQCW","created_at":"2026-05-18T12:30:19Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2016:GEAYDQCWDWHWBBNZA6HOD2WE7C","target":"record","payload":{"canonical_record":{"source":{"id":"1605.04922","kind":"arxiv","version":3},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2016-05-16T20:01:37Z","cross_cats_sorted":["cs.IT","math.IT"],"title_canon_sha256":"ef2e7411c7a3feef9ff35966d5da133c5c4ccc6eb0e90699af720611813226d8","abstract_canon_sha256":"e389906e23839e411a4db54df39c90f0073fcb1022ba5acaa79f0e95758f5c43"},"schema_version":"1.0"},"canonical_sha256":"310181c0561d8f6085b9078ee1eac4f8a3b1c7c24daed347c66c7937c8f9b2db","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:51:37.417853Z","signature_b64":"SWFIg66UrGGxsniwnrZJj/E3z8twHhNz3mjfeePDi3LzRPMFghnlup0l1StBNWZWfxrzqtjxmX+RemEAtzQaBw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"310181c0561d8f6085b9078ee1eac4f8a3b1c7c24daed347c66c7937c8f9b2db","last_reissued_at":"2026-05-18T00:51:37.417430Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:51:37.417430Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1605.04922","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":"2026-05-18T00:51:37Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"fBZfAGkuouJHGwuHWScMa95dyVRqiUk47qHDRkj26Awmf5JRgYZJzY1Maiibumo4/u1Qbkp8a191eG6Y+EydDw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-04T20:28:10.159425Z"},"content_sha256":"bdc8f5cc140e49a4a15c6e46b6d281684638fc74da3fae277b21dfcc719eaa1f","schema_version":"1.0","event_id":"sha256:bdc8f5cc140e49a4a15c6e46b6d281684638fc74da3fae277b21dfcc719eaa1f"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2016:GEAYDQCWDWHWBBNZA6HOD2WE7C","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Capacities of Quantum Amplifier Channels","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cs.IT","math.IT"],"primary_cat":"quant-ph","authors_text":"Haoyu Qi, Mark M. Wilde","submitted_at":"2016-05-16T20:01:37Z","abstract_excerpt":"Quantum amplifier channels are at the core of several physical processes. Not only do they model the optical process of spontaneous parametric down-conversion, but the transformation corresponding to an amplifier channel also describes the physics of the dynamical Casimir effect in superconducting circuits, the Unruh effect, and Hawking radiation. Here we study the communication capabilities of quantum amplifier channels. Invoking a recently established minimum output-entropy theorem for single-mode phase-insensitive Gaussian channels, we determine capacities of quantum-limited amplifier chann"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1605.04922","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":""},"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":"2026-05-18T00:51:37Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"9kX9FXuIlea3Bagt2gQJ/PLGO3nup/x+nOANQ1Op5AiZNF+fU8PIJIPkPV9n6TyM9nsylvY57oy8mJANVQLCAw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-04T20:28:10.159772Z"},"content_sha256":"66950837bfc6850798a394a88d2a20c839225d40eeadd5d2e199b02131a51597","schema_version":"1.0","event_id":"sha256:66950837bfc6850798a394a88d2a20c839225d40eeadd5d2e199b02131a51597"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/GEAYDQCWDWHWBBNZA6HOD2WE7C/bundle.json","state_url":"https://pith.science/pith/GEAYDQCWDWHWBBNZA6HOD2WE7C/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/GEAYDQCWDWHWBBNZA6HOD2WE7C/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":"2026-06-04T20:28:10Z","links":{"resolver":"https://pith.science/pith/GEAYDQCWDWHWBBNZA6HOD2WE7C","bundle":"https://pith.science/pith/GEAYDQCWDWHWBBNZA6HOD2WE7C/bundle.json","state":"https://pith.science/pith/GEAYDQCWDWHWBBNZA6HOD2WE7C/state.json","well_known_bundle":"https://pith.science/.well-known/pith/GEAYDQCWDWHWBBNZA6HOD2WE7C/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2016:GEAYDQCWDWHWBBNZA6HOD2WE7C","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":"e389906e23839e411a4db54df39c90f0073fcb1022ba5acaa79f0e95758f5c43","cross_cats_sorted":["cs.IT","math.IT"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2016-05-16T20:01:37Z","title_canon_sha256":"ef2e7411c7a3feef9ff35966d5da133c5c4ccc6eb0e90699af720611813226d8"},"schema_version":"1.0","source":{"id":"1605.04922","kind":"arxiv","version":3}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1605.04922","created_at":"2026-05-18T00:51:37Z"},{"alias_kind":"arxiv_version","alias_value":"1605.04922v3","created_at":"2026-05-18T00:51:37Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1605.04922","created_at":"2026-05-18T00:51:37Z"},{"alias_kind":"pith_short_12","alias_value":"GEAYDQCWDWHW","created_at":"2026-05-18T12:30:19Z"},{"alias_kind":"pith_short_16","alias_value":"GEAYDQCWDWHWBBNZ","created_at":"2026-05-18T12:30:19Z"},{"alias_kind":"pith_short_8","alias_value":"GEAYDQCW","created_at":"2026-05-18T12:30:19Z"}],"graph_snapshots":[{"event_id":"sha256:66950837bfc6850798a394a88d2a20c839225d40eeadd5d2e199b02131a51597","target":"graph","created_at":"2026-05-18T00:51:37Z","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":"Quantum amplifier channels are at the core of several physical processes. Not only do they model the optical process of spontaneous parametric down-conversion, but the transformation corresponding to an amplifier channel also describes the physics of the dynamical Casimir effect in superconducting circuits, the Unruh effect, and Hawking radiation. Here we study the communication capabilities of quantum amplifier channels. Invoking a recently established minimum output-entropy theorem for single-mode phase-insensitive Gaussian channels, we determine capacities of quantum-limited amplifier chann","authors_text":"Haoyu Qi, Mark M. Wilde","cross_cats":["cs.IT","math.IT"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2016-05-16T20:01:37Z","title":"Capacities of Quantum Amplifier Channels"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1605.04922","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:bdc8f5cc140e49a4a15c6e46b6d281684638fc74da3fae277b21dfcc719eaa1f","target":"record","created_at":"2026-05-18T00:51:37Z","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":"e389906e23839e411a4db54df39c90f0073fcb1022ba5acaa79f0e95758f5c43","cross_cats_sorted":["cs.IT","math.IT"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2016-05-16T20:01:37Z","title_canon_sha256":"ef2e7411c7a3feef9ff35966d5da133c5c4ccc6eb0e90699af720611813226d8"},"schema_version":"1.0","source":{"id":"1605.04922","kind":"arxiv","version":3}},"canonical_sha256":"310181c0561d8f6085b9078ee1eac4f8a3b1c7c24daed347c66c7937c8f9b2db","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"310181c0561d8f6085b9078ee1eac4f8a3b1c7c24daed347c66c7937c8f9b2db","first_computed_at":"2026-05-18T00:51:37.417430Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:51:37.417430Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"SWFIg66UrGGxsniwnrZJj/E3z8twHhNz3mjfeePDi3LzRPMFghnlup0l1StBNWZWfxrzqtjxmX+RemEAtzQaBw==","signature_status":"signed_v1","signed_at":"2026-05-18T00:51:37.417853Z","signed_message":"canonical_sha256_bytes"},"source_id":"1605.04922","source_kind":"arxiv","source_version":3}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:bdc8f5cc140e49a4a15c6e46b6d281684638fc74da3fae277b21dfcc719eaa1f","sha256:66950837bfc6850798a394a88d2a20c839225d40eeadd5d2e199b02131a51597"],"state_sha256":"cfddf01076fca180b687d84459b520c43f8440c60fe9b4b960c633b182217633"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"BlZum8Vkjz+rg0VPxozk3nZHXrvUwQLOUtl6S7YXNNxnc3/U0Jt+5J7jdduHbwZHvZXth6O5vOkrBgB9xrP/Cg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-04T20:28:10.161710Z","bundle_sha256":"37ea5bd4a7439acb0607a7ce879bcf725739f0bf81abfd9b1d29911b9d385cac"}}