{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2017:PTWJVPK6D5FJQX3X2QXP57OVRD","short_pith_number":"pith:PTWJVPK6","canonical_record":{"source":{"id":"1702.07732","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.ins-det","submitted_at":"2017-02-22T05:06:29Z","cross_cats_sorted":[],"title_canon_sha256":"66409389090f11480162543211e697e0c94c70cc14e849a3bb4adb43201884a5","abstract_canon_sha256":"d944fd7974609239b9465a05998696f0591f649cf4afc7ab16cb272b4eb9f88e"},"schema_version":"1.0"},"canonical_sha256":"7cec9abd5e1f4a985f77d42efefdd588ef308d932ed28badd5919c2d61de9570","source":{"kind":"arxiv","id":"1702.07732","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1702.07732","created_at":"2026-05-18T00:49:57Z"},{"alias_kind":"arxiv_version","alias_value":"1702.07732v1","created_at":"2026-05-18T00:49:57Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1702.07732","created_at":"2026-05-18T00:49:57Z"},{"alias_kind":"pith_short_12","alias_value":"PTWJVPK6D5FJ","created_at":"2026-05-18T12:31:37Z"},{"alias_kind":"pith_short_16","alias_value":"PTWJVPK6D5FJQX3X","created_at":"2026-05-18T12:31:37Z"},{"alias_kind":"pith_short_8","alias_value":"PTWJVPK6","created_at":"2026-05-18T12:31:37Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2017:PTWJVPK6D5FJQX3X2QXP57OVRD","target":"record","payload":{"canonical_record":{"source":{"id":"1702.07732","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.ins-det","submitted_at":"2017-02-22T05:06:29Z","cross_cats_sorted":[],"title_canon_sha256":"66409389090f11480162543211e697e0c94c70cc14e849a3bb4adb43201884a5","abstract_canon_sha256":"d944fd7974609239b9465a05998696f0591f649cf4afc7ab16cb272b4eb9f88e"},"schema_version":"1.0"},"canonical_sha256":"7cec9abd5e1f4a985f77d42efefdd588ef308d932ed28badd5919c2d61de9570","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:49:57.203630Z","signature_b64":"WkhBSwI8XcJ3zzx5QHoga7KF/QjLQzyFaRb/z8aovuroe8f0F5rgWC21+3smGJ3B7ZOyeGFF0ItU5+XVS1LLCA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"7cec9abd5e1f4a985f77d42efefdd588ef308d932ed28badd5919c2d61de9570","last_reissued_at":"2026-05-18T00:49:57.202960Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:49:57.202960Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1702.07732","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":"2026-05-18T00:49:57Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"yo5auIBx3hKQXgYb8JDtyld8Lzf0RqPnoJqLwvk7Y5Oudhhfb+qh/YWiU9+8H8uSdFHEGx5H9vy+gFEOpl+YAQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-31T11:41:36.517121Z"},"content_sha256":"f6a602582383f532dd5c07bd0970d6adcca9eb01d9048d395ac67c2efb0149a7","schema_version":"1.0","event_id":"sha256:f6a602582383f532dd5c07bd0970d6adcca9eb01d9048d395ac67c2efb0149a7"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2017:PTWJVPK6D5FJQX3X2QXP57OVRD","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Computational Study of Amplitude-to-Phase Conversion in a Modified Uni-Traveling Carrier (MUTC) Photodetector","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"physics.ins-det","authors_text":"Curtis R. Menyuk, Joe C. Campbell, Keith J. Williams, Meredith N. Hutchinson, Vincent J. Urick, Xiaojun Xie, Yue Hu","submitted_at":"2017-02-22T05:06:29Z","abstract_excerpt":"We calculate the amplitude-to-phase (AM-to-PM) noise conversion in a modified unitraveling carrier (MUTC) photodetector. We obtained two nulls as measured in the experiments, and we explain their origin. The nulls appear due to the transit time variation when the average photocurrent varies, and the transit time variation is due to the change of electron velocity when the average photocurrent varies. We also show that the AM-to-PM conversion coefficient depends only on the pulse energy and is independent of the pulse duration when the duration is less than 500 fs. When the pulse duration is la"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1702.07732","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":"2026-05-18T00:49:57Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"e/DQ5lUEECzj1/ft+VLx3rX9bv/i3eWUw8dehf/96vsXs1syMQ5rHXSc1B+OrKv97zZPcV0aMw5AnUW7/oP6Dg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-31T11:41:36.517781Z"},"content_sha256":"951750375375bf93da78487075ad448c48dffa56deeed107b6fed03d121fbaef","schema_version":"1.0","event_id":"sha256:951750375375bf93da78487075ad448c48dffa56deeed107b6fed03d121fbaef"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/PTWJVPK6D5FJQX3X2QXP57OVRD/bundle.json","state_url":"https://pith.science/pith/PTWJVPK6D5FJQX3X2QXP57OVRD/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/PTWJVPK6D5FJQX3X2QXP57OVRD/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":"2026-05-31T11:41:36Z","links":{"resolver":"https://pith.science/pith/PTWJVPK6D5FJQX3X2QXP57OVRD","bundle":"https://pith.science/pith/PTWJVPK6D5FJQX3X2QXP57OVRD/bundle.json","state":"https://pith.science/pith/PTWJVPK6D5FJQX3X2QXP57OVRD/state.json","well_known_bundle":"https://pith.science/.well-known/pith/PTWJVPK6D5FJQX3X2QXP57OVRD/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2017:PTWJVPK6D5FJQX3X2QXP57OVRD","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":"d944fd7974609239b9465a05998696f0591f649cf4afc7ab16cb272b4eb9f88e","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.ins-det","submitted_at":"2017-02-22T05:06:29Z","title_canon_sha256":"66409389090f11480162543211e697e0c94c70cc14e849a3bb4adb43201884a5"},"schema_version":"1.0","source":{"id":"1702.07732","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1702.07732","created_at":"2026-05-18T00:49:57Z"},{"alias_kind":"arxiv_version","alias_value":"1702.07732v1","created_at":"2026-05-18T00:49:57Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1702.07732","created_at":"2026-05-18T00:49:57Z"},{"alias_kind":"pith_short_12","alias_value":"PTWJVPK6D5FJ","created_at":"2026-05-18T12:31:37Z"},{"alias_kind":"pith_short_16","alias_value":"PTWJVPK6D5FJQX3X","created_at":"2026-05-18T12:31:37Z"},{"alias_kind":"pith_short_8","alias_value":"PTWJVPK6","created_at":"2026-05-18T12:31:37Z"}],"graph_snapshots":[{"event_id":"sha256:951750375375bf93da78487075ad448c48dffa56deeed107b6fed03d121fbaef","target":"graph","created_at":"2026-05-18T00:49:57Z","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":"We calculate the amplitude-to-phase (AM-to-PM) noise conversion in a modified unitraveling carrier (MUTC) photodetector. We obtained two nulls as measured in the experiments, and we explain their origin. The nulls appear due to the transit time variation when the average photocurrent varies, and the transit time variation is due to the change of electron velocity when the average photocurrent varies. We also show that the AM-to-PM conversion coefficient depends only on the pulse energy and is independent of the pulse duration when the duration is less than 500 fs. When the pulse duration is la","authors_text":"Curtis R. Menyuk, Joe C. Campbell, Keith J. Williams, Meredith N. Hutchinson, Vincent J. Urick, Xiaojun Xie, Yue Hu","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.ins-det","submitted_at":"2017-02-22T05:06:29Z","title":"Computational Study of Amplitude-to-Phase Conversion in a Modified Uni-Traveling Carrier (MUTC) Photodetector"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1702.07732","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:f6a602582383f532dd5c07bd0970d6adcca9eb01d9048d395ac67c2efb0149a7","target":"record","created_at":"2026-05-18T00:49:57Z","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":"d944fd7974609239b9465a05998696f0591f649cf4afc7ab16cb272b4eb9f88e","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.ins-det","submitted_at":"2017-02-22T05:06:29Z","title_canon_sha256":"66409389090f11480162543211e697e0c94c70cc14e849a3bb4adb43201884a5"},"schema_version":"1.0","source":{"id":"1702.07732","kind":"arxiv","version":1}},"canonical_sha256":"7cec9abd5e1f4a985f77d42efefdd588ef308d932ed28badd5919c2d61de9570","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"7cec9abd5e1f4a985f77d42efefdd588ef308d932ed28badd5919c2d61de9570","first_computed_at":"2026-05-18T00:49:57.202960Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:49:57.202960Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"WkhBSwI8XcJ3zzx5QHoga7KF/QjLQzyFaRb/z8aovuroe8f0F5rgWC21+3smGJ3B7ZOyeGFF0ItU5+XVS1LLCA==","signature_status":"signed_v1","signed_at":"2026-05-18T00:49:57.203630Z","signed_message":"canonical_sha256_bytes"},"source_id":"1702.07732","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:f6a602582383f532dd5c07bd0970d6adcca9eb01d9048d395ac67c2efb0149a7","sha256:951750375375bf93da78487075ad448c48dffa56deeed107b6fed03d121fbaef"],"state_sha256":"f72e7b6f162199f86d2d43248c2567740b4c01598559003a606435ab8d9faa6b"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"F5OzQgl3/aIuEEFPSaIHkMJ+nDJftXNpB5aCvLNURd6umnsl4BSwrZshtP4YEJYEFvtWDd8A+lq+dLn71V3LDQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-31T11:41:36.521078Z","bundle_sha256":"d293e5c8e832a5a2cf123c5aa4d14ff91ef562bdfa870910465d79abc1b19bc0"}}