{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2009:PZM4KMETGMA4CN4FYS5IY6D2UH","short_pith_number":"pith:PZM4KMET","canonical_record":{"source":{"id":"0911.3668","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2009-11-18T22:05:28Z","cross_cats_sorted":["cs.IT","math.IT"],"title_canon_sha256":"5260d0692d0402ae0eaeab1ae57477b37b4af7b84941d9cbf7b61bfaa390ae40","abstract_canon_sha256":"a7ddbbc42fcbdaec8511ce1e96115451aa2e780994857c6e53a770430b2622d6"},"schema_version":"1.0"},"canonical_sha256":"7e59c530933301c13785c4ba8c787aa1e4fe22f4188c1a366df6c38d1bab0743","source":{"kind":"arxiv","id":"0911.3668","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"0911.3668","created_at":"2026-05-18T01:04:04Z"},{"alias_kind":"arxiv_version","alias_value":"0911.3668v2","created_at":"2026-05-18T01:04:04Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0911.3668","created_at":"2026-05-18T01:04:04Z"},{"alias_kind":"pith_short_12","alias_value":"PZM4KMETGMA4","created_at":"2026-05-18T12:26:01Z"},{"alias_kind":"pith_short_16","alias_value":"PZM4KMETGMA4CN4F","created_at":"2026-05-18T12:26:01Z"},{"alias_kind":"pith_short_8","alias_value":"PZM4KMET","created_at":"2026-05-18T12:26:01Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2009:PZM4KMETGMA4CN4FYS5IY6D2UH","target":"record","payload":{"canonical_record":{"source":{"id":"0911.3668","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2009-11-18T22:05:28Z","cross_cats_sorted":["cs.IT","math.IT"],"title_canon_sha256":"5260d0692d0402ae0eaeab1ae57477b37b4af7b84941d9cbf7b61bfaa390ae40","abstract_canon_sha256":"a7ddbbc42fcbdaec8511ce1e96115451aa2e780994857c6e53a770430b2622d6"},"schema_version":"1.0"},"canonical_sha256":"7e59c530933301c13785c4ba8c787aa1e4fe22f4188c1a366df6c38d1bab0743","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:04:04.416535Z","signature_b64":"uflaay7MXwinC8Ren1OzgYKvV08OeSpQ2/su32bFLG7zG9/18HVfJJpI+NWkaWP4QdSd5A4vB1gUF0g7KvAMCQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"7e59c530933301c13785c4ba8c787aa1e4fe22f4188c1a366df6c38d1bab0743","last_reissued_at":"2026-05-18T01:04:04.416097Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:04:04.416097Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"0911.3668","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":"2026-05-18T01:04:04Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"ks3W1ZL1BAmyzoFgk/TYMX8oWjh15FK+veuuEFIZHrMql9yn9iXVNMht1IOQpyCeAznVtK/k2JhWm854daWnBw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-01T05:04:54.479420Z"},"content_sha256":"548fb76e5f598885691a4cbfcc24a8c433e5898e638d66573aed4b454b43b78d","schema_version":"1.0","event_id":"sha256:548fb76e5f598885691a4cbfcc24a8c433e5898e638d66573aed4b454b43b78d"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2009:PZM4KMETGMA4CN4FYS5IY6D2UH","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Signal acquisition via polarization modulation in single photon sources","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cs.IT","math.IT"],"primary_cat":"quant-ph","authors_text":"Adrian P. Flitney, Mark D. McDonnell","submitted_at":"2009-11-18T22:05:28Z","abstract_excerpt":"A simple model system is introduced for demonstrating how a single photon source might be used to transduce classical analog information. The theoretical scheme results in measurements of analog source samples that are (i) quantized in the sense of analog-to-digital conversion and (ii) corrupted by random noise that is solely due to the quantum uncertainty in detecting the polarization state of each photon. This noise is unavoidable if more than one bit per sample is to be transmitted, and we show how it may be exploited in a manner inspired by suprathreshold stochastic resonance. The system i"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0911.3668","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":"2026-05-18T01:04:04Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"5aPuYP1zaxfAvUAGt2CUiX+36jfd4HLNYKIL5XfThVPoCXqY9comiI0jcgMHW1s40XBx4UdVfWknT+OU4lPfCA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-01T05:04:54.479910Z"},"content_sha256":"a93d8516a24df8c03097b10a4cdaef44fb98ef080f60637fde7240b1e0e1ef83","schema_version":"1.0","event_id":"sha256:a93d8516a24df8c03097b10a4cdaef44fb98ef080f60637fde7240b1e0e1ef83"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/PZM4KMETGMA4CN4FYS5IY6D2UH/bundle.json","state_url":"https://pith.science/pith/PZM4KMETGMA4CN4FYS5IY6D2UH/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/PZM4KMETGMA4CN4FYS5IY6D2UH/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":"2026-06-01T05:04:54Z","links":{"resolver":"https://pith.science/pith/PZM4KMETGMA4CN4FYS5IY6D2UH","bundle":"https://pith.science/pith/PZM4KMETGMA4CN4FYS5IY6D2UH/bundle.json","state":"https://pith.science/pith/PZM4KMETGMA4CN4FYS5IY6D2UH/state.json","well_known_bundle":"https://pith.science/.well-known/pith/PZM4KMETGMA4CN4FYS5IY6D2UH/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2009:PZM4KMETGMA4CN4FYS5IY6D2UH","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":"a7ddbbc42fcbdaec8511ce1e96115451aa2e780994857c6e53a770430b2622d6","cross_cats_sorted":["cs.IT","math.IT"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2009-11-18T22:05:28Z","title_canon_sha256":"5260d0692d0402ae0eaeab1ae57477b37b4af7b84941d9cbf7b61bfaa390ae40"},"schema_version":"1.0","source":{"id":"0911.3668","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"0911.3668","created_at":"2026-05-18T01:04:04Z"},{"alias_kind":"arxiv_version","alias_value":"0911.3668v2","created_at":"2026-05-18T01:04:04Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0911.3668","created_at":"2026-05-18T01:04:04Z"},{"alias_kind":"pith_short_12","alias_value":"PZM4KMETGMA4","created_at":"2026-05-18T12:26:01Z"},{"alias_kind":"pith_short_16","alias_value":"PZM4KMETGMA4CN4F","created_at":"2026-05-18T12:26:01Z"},{"alias_kind":"pith_short_8","alias_value":"PZM4KMET","created_at":"2026-05-18T12:26:01Z"}],"graph_snapshots":[{"event_id":"sha256:a93d8516a24df8c03097b10a4cdaef44fb98ef080f60637fde7240b1e0e1ef83","target":"graph","created_at":"2026-05-18T01:04:04Z","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":"A simple model system is introduced for demonstrating how a single photon source might be used to transduce classical analog information. The theoretical scheme results in measurements of analog source samples that are (i) quantized in the sense of analog-to-digital conversion and (ii) corrupted by random noise that is solely due to the quantum uncertainty in detecting the polarization state of each photon. This noise is unavoidable if more than one bit per sample is to be transmitted, and we show how it may be exploited in a manner inspired by suprathreshold stochastic resonance. The system i","authors_text":"Adrian P. Flitney, Mark D. McDonnell","cross_cats":["cs.IT","math.IT"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2009-11-18T22:05:28Z","title":"Signal acquisition via polarization modulation in single photon sources"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0911.3668","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":"sha256:548fb76e5f598885691a4cbfcc24a8c433e5898e638d66573aed4b454b43b78d","target":"record","created_at":"2026-05-18T01:04:04Z","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":"a7ddbbc42fcbdaec8511ce1e96115451aa2e780994857c6e53a770430b2622d6","cross_cats_sorted":["cs.IT","math.IT"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2009-11-18T22:05:28Z","title_canon_sha256":"5260d0692d0402ae0eaeab1ae57477b37b4af7b84941d9cbf7b61bfaa390ae40"},"schema_version":"1.0","source":{"id":"0911.3668","kind":"arxiv","version":2}},"canonical_sha256":"7e59c530933301c13785c4ba8c787aa1e4fe22f4188c1a366df6c38d1bab0743","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"7e59c530933301c13785c4ba8c787aa1e4fe22f4188c1a366df6c38d1bab0743","first_computed_at":"2026-05-18T01:04:04.416097Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:04:04.416097Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"uflaay7MXwinC8Ren1OzgYKvV08OeSpQ2/su32bFLG7zG9/18HVfJJpI+NWkaWP4QdSd5A4vB1gUF0g7KvAMCQ==","signature_status":"signed_v1","signed_at":"2026-05-18T01:04:04.416535Z","signed_message":"canonical_sha256_bytes"},"source_id":"0911.3668","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:548fb76e5f598885691a4cbfcc24a8c433e5898e638d66573aed4b454b43b78d","sha256:a93d8516a24df8c03097b10a4cdaef44fb98ef080f60637fde7240b1e0e1ef83"],"state_sha256":"30e90d0ea3793b0330242dad9a86464c5171330edcb69aee122f69c9c60c5fa5"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"crjXVre1c261J4RZJZjWE2XWb/GdDW552WwBZGEcWZTIQyPTiUZeRBb+6SSddwSw842DC16XqUlGvJTMcwHaCQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-01T05:04:54.482929Z","bundle_sha256":"c46944a677e7ef275506cb595310b9cbbd09d8ab7ff1a20bbe179f578ffa872b"}}