{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:1999:4FJTHN2XYYITTUQE3LWH4N7DKX","short_pith_number":"pith:4FJTHN2X","canonical_record":{"source":{"id":"quant-ph/9901006","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"quant-ph","submitted_at":"1999-01-06T10:51:46Z","cross_cats_sorted":[],"title_canon_sha256":"53d4c8c2de0be0221e29fe46d8279dea37c0699de20341986cb1d2d55bf6a1b0","abstract_canon_sha256":"af75919ab9f7566cc15967000bd47af4d36e1d437acae37817dce67319c79398"},"schema_version":"1.0"},"canonical_sha256":"e15333b757c61139d204daec7e37e355c95c3919c2991e6c5abf6c7efc175ed5","source":{"kind":"arxiv","id":"quant-ph/9901006","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"quant-ph/9901006","created_at":"2026-05-18T03:47:09Z"},{"alias_kind":"arxiv_version","alias_value":"quant-ph/9901006v1","created_at":"2026-05-18T03:47:09Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.quant-ph/9901006","created_at":"2026-05-18T03:47:09Z"},{"alias_kind":"pith_short_12","alias_value":"4FJTHN2XYYIT","created_at":"2026-05-18T12:25:49Z"},{"alias_kind":"pith_short_16","alias_value":"4FJTHN2XYYITTUQE","created_at":"2026-05-18T12:25:49Z"},{"alias_kind":"pith_short_8","alias_value":"4FJTHN2X","created_at":"2026-05-18T12:25:49Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:1999:4FJTHN2XYYITTUQE3LWH4N7DKX","target":"record","payload":{"canonical_record":{"source":{"id":"quant-ph/9901006","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"quant-ph","submitted_at":"1999-01-06T10:51:46Z","cross_cats_sorted":[],"title_canon_sha256":"53d4c8c2de0be0221e29fe46d8279dea37c0699de20341986cb1d2d55bf6a1b0","abstract_canon_sha256":"af75919ab9f7566cc15967000bd47af4d36e1d437acae37817dce67319c79398"},"schema_version":"1.0"},"canonical_sha256":"e15333b757c61139d204daec7e37e355c95c3919c2991e6c5abf6c7efc175ed5","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T03:47:09.248675Z","signature_b64":"ZeFF8/7ixZ22c5u9PipQfCLfuIl0yPG1rc03jtFMmGPI8NWzJnez0SsI2lBdviftjHmDCf1pIDxnpGJf1KsfAg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"e15333b757c61139d204daec7e37e355c95c3919c2991e6c5abf6c7efc175ed5","last_reissued_at":"2026-05-18T03:47:09.248313Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T03:47:09.248313Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"quant-ph/9901006","source_version":1,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T03:47:09Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"WALrfDMlHJm46d4vI/j+eTBfXhKbfZTC8COzesrtQx+isBeQ+/kPv8MTal/zJ5QEWGMEc+9bpcQB+3l1uQ9mDw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-25T22:21:12.025436Z"},"content_sha256":"725339e961c9fe825ca41c611b3aa467438ad1334906a93319c303b294b2a4fa","schema_version":"1.0","event_id":"sha256:725339e961c9fe825ca41c611b3aa467438ad1334906a93319c303b294b2a4fa"},{"event_type":"graph_snapshot","subject_pith_number":"pith:1999:4FJTHN2XYYITTUQE3LWH4N7DKX","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Statistics of light in Raman and Brillouin nonlinear couplers","license":"","headline":"","cross_cats":[],"primary_cat":"quant-ph","authors_text":"(2) Palacky University), J. Perina, J. Perina (2) ((1) Inst. of Physics AS CR, Jr. (1)","submitted_at":"1999-01-06T10:51:46Z","abstract_excerpt":"Statistical properties of optical fields in nonlinear couplers composed of two waveguides in which Raman or Brillouin processes (with classical pumping) are in operation and which are mutually connected through the Stokes and/or anti-Stokes linear interactions are investigated within the framework of generalized superposition of coherent fields and quantum noise. Heisenberg equations describing the couplers are solved both analytically under special conditions and numerically in general cases. Regimes for nonclassical properties of optical fields, such as sub-Poissonian photon-number statistic"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"quant-ph/9901006","kind":"arxiv","version":1},"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":"2026-05-18T03:47:09Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"+vfM4hxY3cnfGFSoXBSTFT8Jq7ifWALKaawdfAbldZ95tPgClzN55YGF7GCJ1+UMzSAFquG/VfTwgcsLl5qgAw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-25T22:21:12.026127Z"},"content_sha256":"6f9522a5961d80b37248e17c50d56cc83c551a873215f1ea0432121280494b44","schema_version":"1.0","event_id":"sha256:6f9522a5961d80b37248e17c50d56cc83c551a873215f1ea0432121280494b44"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/4FJTHN2XYYITTUQE3LWH4N7DKX/bundle.json","state_url":"https://pith.science/pith/4FJTHN2XYYITTUQE3LWH4N7DKX/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/4FJTHN2XYYITTUQE3LWH4N7DKX/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":"2026-05-25T22:21:12Z","links":{"resolver":"https://pith.science/pith/4FJTHN2XYYITTUQE3LWH4N7DKX","bundle":"https://pith.science/pith/4FJTHN2XYYITTUQE3LWH4N7DKX/bundle.json","state":"https://pith.science/pith/4FJTHN2XYYITTUQE3LWH4N7DKX/state.json","well_known_bundle":"https://pith.science/.well-known/pith/4FJTHN2XYYITTUQE3LWH4N7DKX/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:1999:4FJTHN2XYYITTUQE3LWH4N7DKX","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":"af75919ab9f7566cc15967000bd47af4d36e1d437acae37817dce67319c79398","cross_cats_sorted":[],"license":"","primary_cat":"quant-ph","submitted_at":"1999-01-06T10:51:46Z","title_canon_sha256":"53d4c8c2de0be0221e29fe46d8279dea37c0699de20341986cb1d2d55bf6a1b0"},"schema_version":"1.0","source":{"id":"quant-ph/9901006","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"quant-ph/9901006","created_at":"2026-05-18T03:47:09Z"},{"alias_kind":"arxiv_version","alias_value":"quant-ph/9901006v1","created_at":"2026-05-18T03:47:09Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.quant-ph/9901006","created_at":"2026-05-18T03:47:09Z"},{"alias_kind":"pith_short_12","alias_value":"4FJTHN2XYYIT","created_at":"2026-05-18T12:25:49Z"},{"alias_kind":"pith_short_16","alias_value":"4FJTHN2XYYITTUQE","created_at":"2026-05-18T12:25:49Z"},{"alias_kind":"pith_short_8","alias_value":"4FJTHN2X","created_at":"2026-05-18T12:25:49Z"}],"graph_snapshots":[{"event_id":"sha256:6f9522a5961d80b37248e17c50d56cc83c551a873215f1ea0432121280494b44","target":"graph","created_at":"2026-05-18T03:47:09Z","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":"Statistical properties of optical fields in nonlinear couplers composed of two waveguides in which Raman or Brillouin processes (with classical pumping) are in operation and which are mutually connected through the Stokes and/or anti-Stokes linear interactions are investigated within the framework of generalized superposition of coherent fields and quantum noise. Heisenberg equations describing the couplers are solved both analytically under special conditions and numerically in general cases. Regimes for nonclassical properties of optical fields, such as sub-Poissonian photon-number statistic","authors_text":"(2) Palacky University), J. Perina, J. Perina (2) ((1) Inst. of Physics AS CR, Jr. (1)","cross_cats":[],"headline":"","license":"","primary_cat":"quant-ph","submitted_at":"1999-01-06T10:51:46Z","title":"Statistics of light in Raman and Brillouin nonlinear couplers"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"quant-ph/9901006","kind":"arxiv","version":1},"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":"sha256:725339e961c9fe825ca41c611b3aa467438ad1334906a93319c303b294b2a4fa","target":"record","created_at":"2026-05-18T03:47:09Z","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":"af75919ab9f7566cc15967000bd47af4d36e1d437acae37817dce67319c79398","cross_cats_sorted":[],"license":"","primary_cat":"quant-ph","submitted_at":"1999-01-06T10:51:46Z","title_canon_sha256":"53d4c8c2de0be0221e29fe46d8279dea37c0699de20341986cb1d2d55bf6a1b0"},"schema_version":"1.0","source":{"id":"quant-ph/9901006","kind":"arxiv","version":1}},"canonical_sha256":"e15333b757c61139d204daec7e37e355c95c3919c2991e6c5abf6c7efc175ed5","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"e15333b757c61139d204daec7e37e355c95c3919c2991e6c5abf6c7efc175ed5","first_computed_at":"2026-05-18T03:47:09.248313Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T03:47:09.248313Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"ZeFF8/7ixZ22c5u9PipQfCLfuIl0yPG1rc03jtFMmGPI8NWzJnez0SsI2lBdviftjHmDCf1pIDxnpGJf1KsfAg==","signature_status":"signed_v1","signed_at":"2026-05-18T03:47:09.248675Z","signed_message":"canonical_sha256_bytes"},"source_id":"quant-ph/9901006","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:725339e961c9fe825ca41c611b3aa467438ad1334906a93319c303b294b2a4fa","sha256:6f9522a5961d80b37248e17c50d56cc83c551a873215f1ea0432121280494b44"],"state_sha256":"7fbd6fce96e5e410563f4c284439e6464d944c97f0f69421914704572503474d"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"kzRpFdQQxWEzRn+v6Dcx1R97NFJe34KkIygZ+Ygi2mNC/X8Ou+2kHCfijYI0EpXaaEOZAq70CimiNen77fZmDA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-25T22:21:12.028565Z","bundle_sha256":"5e197b4c501b22e257d0dc5b856d86e33a0141408191afbb5bfa9e8107d250cd"}}