{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2010:UQJMR2LNPYU7LB6VVT4FDJC7MS","short_pith_number":"pith:UQJMR2LN","canonical_record":{"source":{"id":"1007.5367","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2010-07-30T04:18:53Z","cross_cats_sorted":[],"title_canon_sha256":"e202546581d3dda5cb1923149fbf710933774f2081a6d7c21a5ee6212845fe8c","abstract_canon_sha256":"a3da9532ee7b5b630e3ac38ff02c6701b60d373747847c4973236f97f14a262b"},"schema_version":"1.0"},"canonical_sha256":"a412c8e96d7e29f587d5acf851a45f64b36998cd84f0a8dbec36fa8a3ac386e1","source":{"kind":"arxiv","id":"1007.5367","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1007.5367","created_at":"2026-05-18T04:42:45Z"},{"alias_kind":"arxiv_version","alias_value":"1007.5367v1","created_at":"2026-05-18T04:42:45Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1007.5367","created_at":"2026-05-18T04:42:45Z"},{"alias_kind":"pith_short_12","alias_value":"UQJMR2LNPYU7","created_at":"2026-05-18T12:26:15Z"},{"alias_kind":"pith_short_16","alias_value":"UQJMR2LNPYU7LB6V","created_at":"2026-05-18T12:26:15Z"},{"alias_kind":"pith_short_8","alias_value":"UQJMR2LN","created_at":"2026-05-18T12:26:15Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2010:UQJMR2LNPYU7LB6VVT4FDJC7MS","target":"record","payload":{"canonical_record":{"source":{"id":"1007.5367","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2010-07-30T04:18:53Z","cross_cats_sorted":[],"title_canon_sha256":"e202546581d3dda5cb1923149fbf710933774f2081a6d7c21a5ee6212845fe8c","abstract_canon_sha256":"a3da9532ee7b5b630e3ac38ff02c6701b60d373747847c4973236f97f14a262b"},"schema_version":"1.0"},"canonical_sha256":"a412c8e96d7e29f587d5acf851a45f64b36998cd84f0a8dbec36fa8a3ac386e1","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T04:42:45.345697Z","signature_b64":"upMOpiXcHt2zKchzhA/5n8hV1dU+r4dtAqQnkUqx58Yf7j83r5NOd8g4LpPqjQmQGZiNvTexQioKiwq17AsPCQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"a412c8e96d7e29f587d5acf851a45f64b36998cd84f0a8dbec36fa8a3ac386e1","last_reissued_at":"2026-05-18T04:42:45.344902Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T04:42:45.344902Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1007.5367","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":"2026-05-18T04:42:45Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"CuAmfsbTjYcFdVAFlRhbz/GwZm79KnZXgh2Kzaajljz7NQAOw0iUM0S+bg9LdAofrbo99c6uKOwGRfAtJVEyCQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-02T15:44:52.242864Z"},"content_sha256":"facd36adc03b20e1d5b832e8dbdbb61b29a313e9528ecf2a7c04be91a1edc7c1","schema_version":"1.0","event_id":"sha256:facd36adc03b20e1d5b832e8dbdbb61b29a313e9528ecf2a7c04be91a1edc7c1"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2010:UQJMR2LNPYU7LB6VVT4FDJC7MS","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Phase Noise and Intensity Noise of the Pulse Train Generated from Mode-locked Lasers in the Demodulation Measurement","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"physics.optics","authors_text":"Kan Wu, Ping Shum","submitted_at":"2010-07-30T04:18:53Z","abstract_excerpt":"The phase noise and intensity noise of a pulse train are theoretically analyzed in the demodulation measurement. The effect of pulse asymmetry is discussed for the first time using Fourier series. Experimentally, photodetectors with different bandwidth and incident power levels are compared to achieve minimum pulse distortion."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1007.5367","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":"2026-05-18T04:42:45Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"eBNVnkEkuPcjzrY3tBgraP+Q7+uojdqb7XCK/AF2U3irTIFxOjWzcCm659AAYIuaiLgcXspC7wqPYrZxPAcFDg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-02T15:44:52.243212Z"},"content_sha256":"f48446bb9d56be837eaec1f3707715aa6a16a3dac52d5f41e8e59322c9a71a53","schema_version":"1.0","event_id":"sha256:f48446bb9d56be837eaec1f3707715aa6a16a3dac52d5f41e8e59322c9a71a53"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/UQJMR2LNPYU7LB6VVT4FDJC7MS/bundle.json","state_url":"https://pith.science/pith/UQJMR2LNPYU7LB6VVT4FDJC7MS/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/UQJMR2LNPYU7LB6VVT4FDJC7MS/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":"2026-06-02T15:44:52Z","links":{"resolver":"https://pith.science/pith/UQJMR2LNPYU7LB6VVT4FDJC7MS","bundle":"https://pith.science/pith/UQJMR2LNPYU7LB6VVT4FDJC7MS/bundle.json","state":"https://pith.science/pith/UQJMR2LNPYU7LB6VVT4FDJC7MS/state.json","well_known_bundle":"https://pith.science/.well-known/pith/UQJMR2LNPYU7LB6VVT4FDJC7MS/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2010:UQJMR2LNPYU7LB6VVT4FDJC7MS","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":"a3da9532ee7b5b630e3ac38ff02c6701b60d373747847c4973236f97f14a262b","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2010-07-30T04:18:53Z","title_canon_sha256":"e202546581d3dda5cb1923149fbf710933774f2081a6d7c21a5ee6212845fe8c"},"schema_version":"1.0","source":{"id":"1007.5367","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1007.5367","created_at":"2026-05-18T04:42:45Z"},{"alias_kind":"arxiv_version","alias_value":"1007.5367v1","created_at":"2026-05-18T04:42:45Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1007.5367","created_at":"2026-05-18T04:42:45Z"},{"alias_kind":"pith_short_12","alias_value":"UQJMR2LNPYU7","created_at":"2026-05-18T12:26:15Z"},{"alias_kind":"pith_short_16","alias_value":"UQJMR2LNPYU7LB6V","created_at":"2026-05-18T12:26:15Z"},{"alias_kind":"pith_short_8","alias_value":"UQJMR2LN","created_at":"2026-05-18T12:26:15Z"}],"graph_snapshots":[{"event_id":"sha256:f48446bb9d56be837eaec1f3707715aa6a16a3dac52d5f41e8e59322c9a71a53","target":"graph","created_at":"2026-05-18T04:42:45Z","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":"The phase noise and intensity noise of a pulse train are theoretically analyzed in the demodulation measurement. The effect of pulse asymmetry is discussed for the first time using Fourier series. Experimentally, photodetectors with different bandwidth and incident power levels are compared to achieve minimum pulse distortion.","authors_text":"Kan Wu, Ping Shum","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2010-07-30T04:18:53Z","title":"Phase Noise and Intensity Noise of the Pulse Train Generated from Mode-locked Lasers in the Demodulation Measurement"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1007.5367","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:facd36adc03b20e1d5b832e8dbdbb61b29a313e9528ecf2a7c04be91a1edc7c1","target":"record","created_at":"2026-05-18T04:42:45Z","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":"a3da9532ee7b5b630e3ac38ff02c6701b60d373747847c4973236f97f14a262b","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2010-07-30T04:18:53Z","title_canon_sha256":"e202546581d3dda5cb1923149fbf710933774f2081a6d7c21a5ee6212845fe8c"},"schema_version":"1.0","source":{"id":"1007.5367","kind":"arxiv","version":1}},"canonical_sha256":"a412c8e96d7e29f587d5acf851a45f64b36998cd84f0a8dbec36fa8a3ac386e1","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"a412c8e96d7e29f587d5acf851a45f64b36998cd84f0a8dbec36fa8a3ac386e1","first_computed_at":"2026-05-18T04:42:45.344902Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T04:42:45.344902Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"upMOpiXcHt2zKchzhA/5n8hV1dU+r4dtAqQnkUqx58Yf7j83r5NOd8g4LpPqjQmQGZiNvTexQioKiwq17AsPCQ==","signature_status":"signed_v1","signed_at":"2026-05-18T04:42:45.345697Z","signed_message":"canonical_sha256_bytes"},"source_id":"1007.5367","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:facd36adc03b20e1d5b832e8dbdbb61b29a313e9528ecf2a7c04be91a1edc7c1","sha256:f48446bb9d56be837eaec1f3707715aa6a16a3dac52d5f41e8e59322c9a71a53"],"state_sha256":"36ff5c85013ba2ff9dacc87399f185f4aa106f8ea02410463c189a96abb76495"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"YrhEgV9/VZnoJmGvNTRL60DIykfb0QDI3d/L7+1bV8PGI2zoM0ZLzKdHNgKBNwbfYmDUGleU2aQtZft/Ch1wAQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-02T15:44:52.245273Z","bundle_sha256":"4249002044fbcf71f44c413000d3d17183d467b5b26dd3d3116e527c793296dd"}}