{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2016:ARVNH46N2B3LUE72LQGLRQHLEV","short_pith_number":"pith:ARVNH46N","canonical_record":{"source":{"id":"1605.00539","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2016-05-02T15:59:04Z","cross_cats_sorted":["physics.optics","quant-ph"],"title_canon_sha256":"66737cb626819f1b414763f3793ad89798168b0a971dd5f05dded6cab34ef82c","abstract_canon_sha256":"f1aea5c9743915af43989665a17e2c037507e7af53bef1f2895131bb7c9a3a6d"},"schema_version":"1.0"},"canonical_sha256":"046ad3f3cdd076ba13fa5c0cb8c0eb2567e6dc87cf4b5aa341852cec61f9b933","source":{"kind":"arxiv","id":"1605.00539","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1605.00539","created_at":"2026-05-18T00:28:32Z"},{"alias_kind":"arxiv_version","alias_value":"1605.00539v2","created_at":"2026-05-18T00:28:32Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1605.00539","created_at":"2026-05-18T00:28:32Z"},{"alias_kind":"pith_short_12","alias_value":"ARVNH46N2B3L","created_at":"2026-05-18T12:30:07Z"},{"alias_kind":"pith_short_16","alias_value":"ARVNH46N2B3LUE72","created_at":"2026-05-18T12:30:07Z"},{"alias_kind":"pith_short_8","alias_value":"ARVNH46N","created_at":"2026-05-18T12:30:07Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2016:ARVNH46N2B3LUE72LQGLRQHLEV","target":"record","payload":{"canonical_record":{"source":{"id":"1605.00539","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2016-05-02T15:59:04Z","cross_cats_sorted":["physics.optics","quant-ph"],"title_canon_sha256":"66737cb626819f1b414763f3793ad89798168b0a971dd5f05dded6cab34ef82c","abstract_canon_sha256":"f1aea5c9743915af43989665a17e2c037507e7af53bef1f2895131bb7c9a3a6d"},"schema_version":"1.0"},"canonical_sha256":"046ad3f3cdd076ba13fa5c0cb8c0eb2567e6dc87cf4b5aa341852cec61f9b933","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:28:32.543760Z","signature_b64":"9mNpjFgLUqKaWXZho+dFukO3G34AQUcJhb4ooQZuvYXWjGOKmJPeEvHp4h7s6oidYNYQMGD9Rqzw4twVfW4aDw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"046ad3f3cdd076ba13fa5c0cb8c0eb2567e6dc87cf4b5aa341852cec61f9b933","last_reissued_at":"2026-05-18T00:28:32.543045Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:28:32.543045Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1605.00539","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":"2026-05-18T00:28:32Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"m3lvHgPgNVcdw58R/IOj4pEo8U7YKdmzMqSYLhrgZ6jq6zfj2s/G9r3hlLlJSZoWUy9uVs9vCQ4sBkdM1iziCQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-25T09:48:12.678069Z"},"content_sha256":"e48e150b5819be4472d23ff821ca92dbe2f7d3ac2696ee7517212f3d17ee4448","schema_version":"1.0","event_id":"sha256:e48e150b5819be4472d23ff821ca92dbe2f7d3ac2696ee7517212f3d17ee4448"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2016:ARVNH46N2B3LUE72LQGLRQHLEV","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Introduction to Quantum-limited Parametric Amplification of Quantum Signals with Josephson Circuits","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["physics.optics","quant-ph"],"primary_cat":"cond-mat.mes-hall","authors_text":"Ananda Roy, Michel Devoret","submitted_at":"2016-05-02T15:59:04Z","abstract_excerpt":"This short and opinionated review starts with a concept of quantum signals at microwave frequencies and focuses on the principle of linear parametric amplification. The amplification process arises from the dispersive nonlinearity of Josephson junctions driven with appropriate tones. We discuss two defining characteristics of these amplifiers: the number of modes receiving the signal, idler and pump waves and the number of independent ports through which these waves enter into the circuit."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1605.00539","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":"2026-05-18T00:28:32Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"bhTBRjPG7/tUguKldmdJQS/ak24VihbWG8xpVDS9n7Q2Vs1qqJqxYFMrlyCo/YqCwvHLEGx9aRLjtzHftAYLBg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-25T09:48:12.678415Z"},"content_sha256":"3f797f7b0268aaa2cc498b66a82a555aa37c655cae6342b3501d1c90bdd62f68","schema_version":"1.0","event_id":"sha256:3f797f7b0268aaa2cc498b66a82a555aa37c655cae6342b3501d1c90bdd62f68"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/ARVNH46N2B3LUE72LQGLRQHLEV/bundle.json","state_url":"https://pith.science/pith/ARVNH46N2B3LUE72LQGLRQHLEV/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/ARVNH46N2B3LUE72LQGLRQHLEV/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":"2026-06-25T09:48:12Z","links":{"resolver":"https://pith.science/pith/ARVNH46N2B3LUE72LQGLRQHLEV","bundle":"https://pith.science/pith/ARVNH46N2B3LUE72LQGLRQHLEV/bundle.json","state":"https://pith.science/pith/ARVNH46N2B3LUE72LQGLRQHLEV/state.json","well_known_bundle":"https://pith.science/.well-known/pith/ARVNH46N2B3LUE72LQGLRQHLEV/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2016:ARVNH46N2B3LUE72LQGLRQHLEV","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":"f1aea5c9743915af43989665a17e2c037507e7af53bef1f2895131bb7c9a3a6d","cross_cats_sorted":["physics.optics","quant-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2016-05-02T15:59:04Z","title_canon_sha256":"66737cb626819f1b414763f3793ad89798168b0a971dd5f05dded6cab34ef82c"},"schema_version":"1.0","source":{"id":"1605.00539","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1605.00539","created_at":"2026-05-18T00:28:32Z"},{"alias_kind":"arxiv_version","alias_value":"1605.00539v2","created_at":"2026-05-18T00:28:32Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1605.00539","created_at":"2026-05-18T00:28:32Z"},{"alias_kind":"pith_short_12","alias_value":"ARVNH46N2B3L","created_at":"2026-05-18T12:30:07Z"},{"alias_kind":"pith_short_16","alias_value":"ARVNH46N2B3LUE72","created_at":"2026-05-18T12:30:07Z"},{"alias_kind":"pith_short_8","alias_value":"ARVNH46N","created_at":"2026-05-18T12:30:07Z"}],"graph_snapshots":[{"event_id":"sha256:3f797f7b0268aaa2cc498b66a82a555aa37c655cae6342b3501d1c90bdd62f68","target":"graph","created_at":"2026-05-18T00:28:32Z","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":"This short and opinionated review starts with a concept of quantum signals at microwave frequencies and focuses on the principle of linear parametric amplification. The amplification process arises from the dispersive nonlinearity of Josephson junctions driven with appropriate tones. We discuss two defining characteristics of these amplifiers: the number of modes receiving the signal, idler and pump waves and the number of independent ports through which these waves enter into the circuit.","authors_text":"Ananda Roy, Michel Devoret","cross_cats":["physics.optics","quant-ph"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2016-05-02T15:59:04Z","title":"Introduction to Quantum-limited Parametric Amplification of Quantum Signals with Josephson Circuits"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1605.00539","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:e48e150b5819be4472d23ff821ca92dbe2f7d3ac2696ee7517212f3d17ee4448","target":"record","created_at":"2026-05-18T00:28:32Z","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":"f1aea5c9743915af43989665a17e2c037507e7af53bef1f2895131bb7c9a3a6d","cross_cats_sorted":["physics.optics","quant-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2016-05-02T15:59:04Z","title_canon_sha256":"66737cb626819f1b414763f3793ad89798168b0a971dd5f05dded6cab34ef82c"},"schema_version":"1.0","source":{"id":"1605.00539","kind":"arxiv","version":2}},"canonical_sha256":"046ad3f3cdd076ba13fa5c0cb8c0eb2567e6dc87cf4b5aa341852cec61f9b933","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"046ad3f3cdd076ba13fa5c0cb8c0eb2567e6dc87cf4b5aa341852cec61f9b933","first_computed_at":"2026-05-18T00:28:32.543045Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:28:32.543045Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"9mNpjFgLUqKaWXZho+dFukO3G34AQUcJhb4ooQZuvYXWjGOKmJPeEvHp4h7s6oidYNYQMGD9Rqzw4twVfW4aDw==","signature_status":"signed_v1","signed_at":"2026-05-18T00:28:32.543760Z","signed_message":"canonical_sha256_bytes"},"source_id":"1605.00539","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:e48e150b5819be4472d23ff821ca92dbe2f7d3ac2696ee7517212f3d17ee4448","sha256:3f797f7b0268aaa2cc498b66a82a555aa37c655cae6342b3501d1c90bdd62f68"],"state_sha256":"f8634efdd1c37eafb1f0baf930efd9615647ebc89980f8c64fb66be4a2a38ba7"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Z5VE/ldOSsO+IP2aPHPmx6deL3gFCXBEfu4sLoALjSWq6xVb5/ve4MgRJEGQ9EfEMk4o5ATqZaTAJiHyA3csBw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-25T09:48:12.680499Z","bundle_sha256":"b5caf83faa42fa812eac29f6fb13defdcf249d92d7c923cc694e574efc8a3f78"}}