{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2011:WBFDBSLS5KST23PKONM2FNKVYZ","short_pith_number":"pith:WBFDBSLS","canonical_record":{"source":{"id":"1105.3760","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2011-05-18T22:46:33Z","cross_cats_sorted":[],"title_canon_sha256":"695053852288a6f40e34851267260761f13f2c5e88a444270e64ef3f69dc1b05","abstract_canon_sha256":"d7996bf824389c8c723ad78704757cf2dba587ea92e5fa93db5fdbaf1f94e8e4"},"schema_version":"1.0"},"canonical_sha256":"b04a30c972eaa53d6dea7359a2b555c667d3e59fb1000dccdea5a454789cabcd","source":{"kind":"arxiv","id":"1105.3760","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1105.3760","created_at":"2026-05-18T02:21:52Z"},{"alias_kind":"arxiv_version","alias_value":"1105.3760v1","created_at":"2026-05-18T02:21:52Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1105.3760","created_at":"2026-05-18T02:21:52Z"},{"alias_kind":"pith_short_12","alias_value":"WBFDBSLS5KST","created_at":"2026-05-18T12:26:44Z"},{"alias_kind":"pith_short_16","alias_value":"WBFDBSLS5KST23PK","created_at":"2026-05-18T12:26:44Z"},{"alias_kind":"pith_short_8","alias_value":"WBFDBSLS","created_at":"2026-05-18T12:26:44Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2011:WBFDBSLS5KST23PKONM2FNKVYZ","target":"record","payload":{"canonical_record":{"source":{"id":"1105.3760","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2011-05-18T22:46:33Z","cross_cats_sorted":[],"title_canon_sha256":"695053852288a6f40e34851267260761f13f2c5e88a444270e64ef3f69dc1b05","abstract_canon_sha256":"d7996bf824389c8c723ad78704757cf2dba587ea92e5fa93db5fdbaf1f94e8e4"},"schema_version":"1.0"},"canonical_sha256":"b04a30c972eaa53d6dea7359a2b555c667d3e59fb1000dccdea5a454789cabcd","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:21:52.480087Z","signature_b64":"tqp7MIrz5x8d+82pqi1zjAQJINbvFuHV8WBvOdbJPu8bAjY1d3ZiPIfOHy4u4bEGnOMcbXoqlqOJflRdsc/fBw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"b04a30c972eaa53d6dea7359a2b555c667d3e59fb1000dccdea5a454789cabcd","last_reissued_at":"2026-05-18T02:21:52.479376Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:21:52.479376Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1105.3760","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":"2026-05-18T02:21:52Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"F20OhxdTG8aqeLBy83X+krGZipQQi7WYwqXl46WsStRkjV+rxFv6DF3rUt5srIZByRRQgRu1JyVH9/iHbogCBQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-04T01:38:20.216143Z"},"content_sha256":"71a4bad89af669d9947be651426063cb3ca0640cc895ba3f8aa02ae0fdb1206f","schema_version":"1.0","event_id":"sha256:71a4bad89af669d9947be651426063cb3ca0640cc895ba3f8aa02ae0fdb1206f"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2011:WBFDBSLS5KST23PKONM2FNKVYZ","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Characterization of an InGaAs/InP single-photon detector at 200 MHz gate rate","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"quant-ph","authors_text":"Chris Healey, Itzel Lucio-Martinez, Michael R. E. Lamont, Wolfgang Tittel, Xiaofan Mo","submitted_at":"2011-05-18T22:46:33Z","abstract_excerpt":"We characterize a near-infrared single-photon detector based on an InGaAs/InP avalanche photodiode and the self-differencing post-processing technique. It operates at gate rates of 200 MHz and higher. The compact, integrated design employs printed circuit boards and features a semiconductor-based self-differencing subtraction implemented with a fully differential amplifier. At a single-photon detection efficiency of 6.4%, the detector has a dark count probability of 9x10^-7 per gate, an afterpulse probability of 6.3% per detection event, a detection time jitter of 150 ps, and a dead time of 5 "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1105.3760","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":"2026-05-18T02:21:52Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"hcDuaL0cwFf3gnVUf+i2rXO3qyKFlECZQWbgy/OObf48ymPI+ihUtNOaj9V5fD7A4e1VvFhsFdcdqdqaYWEDCw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-04T01:38:20.216505Z"},"content_sha256":"118f625bcdd48d3be5eb512c2412450f9ff472323a012ccaff8424d05def3a43","schema_version":"1.0","event_id":"sha256:118f625bcdd48d3be5eb512c2412450f9ff472323a012ccaff8424d05def3a43"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/WBFDBSLS5KST23PKONM2FNKVYZ/bundle.json","state_url":"https://pith.science/pith/WBFDBSLS5KST23PKONM2FNKVYZ/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/WBFDBSLS5KST23PKONM2FNKVYZ/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":"2026-06-04T01:38:20Z","links":{"resolver":"https://pith.science/pith/WBFDBSLS5KST23PKONM2FNKVYZ","bundle":"https://pith.science/pith/WBFDBSLS5KST23PKONM2FNKVYZ/bundle.json","state":"https://pith.science/pith/WBFDBSLS5KST23PKONM2FNKVYZ/state.json","well_known_bundle":"https://pith.science/.well-known/pith/WBFDBSLS5KST23PKONM2FNKVYZ/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2011:WBFDBSLS5KST23PKONM2FNKVYZ","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":"d7996bf824389c8c723ad78704757cf2dba587ea92e5fa93db5fdbaf1f94e8e4","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2011-05-18T22:46:33Z","title_canon_sha256":"695053852288a6f40e34851267260761f13f2c5e88a444270e64ef3f69dc1b05"},"schema_version":"1.0","source":{"id":"1105.3760","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1105.3760","created_at":"2026-05-18T02:21:52Z"},{"alias_kind":"arxiv_version","alias_value":"1105.3760v1","created_at":"2026-05-18T02:21:52Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1105.3760","created_at":"2026-05-18T02:21:52Z"},{"alias_kind":"pith_short_12","alias_value":"WBFDBSLS5KST","created_at":"2026-05-18T12:26:44Z"},{"alias_kind":"pith_short_16","alias_value":"WBFDBSLS5KST23PK","created_at":"2026-05-18T12:26:44Z"},{"alias_kind":"pith_short_8","alias_value":"WBFDBSLS","created_at":"2026-05-18T12:26:44Z"}],"graph_snapshots":[{"event_id":"sha256:118f625bcdd48d3be5eb512c2412450f9ff472323a012ccaff8424d05def3a43","target":"graph","created_at":"2026-05-18T02:21:52Z","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 characterize a near-infrared single-photon detector based on an InGaAs/InP avalanche photodiode and the self-differencing post-processing technique. It operates at gate rates of 200 MHz and higher. The compact, integrated design employs printed circuit boards and features a semiconductor-based self-differencing subtraction implemented with a fully differential amplifier. At a single-photon detection efficiency of 6.4%, the detector has a dark count probability of 9x10^-7 per gate, an afterpulse probability of 6.3% per detection event, a detection time jitter of 150 ps, and a dead time of 5 ","authors_text":"Chris Healey, Itzel Lucio-Martinez, Michael R. E. Lamont, Wolfgang Tittel, Xiaofan Mo","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2011-05-18T22:46:33Z","title":"Characterization of an InGaAs/InP single-photon detector at 200 MHz gate rate"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1105.3760","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":"sha256:71a4bad89af669d9947be651426063cb3ca0640cc895ba3f8aa02ae0fdb1206f","target":"record","created_at":"2026-05-18T02:21:52Z","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":"d7996bf824389c8c723ad78704757cf2dba587ea92e5fa93db5fdbaf1f94e8e4","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2011-05-18T22:46:33Z","title_canon_sha256":"695053852288a6f40e34851267260761f13f2c5e88a444270e64ef3f69dc1b05"},"schema_version":"1.0","source":{"id":"1105.3760","kind":"arxiv","version":1}},"canonical_sha256":"b04a30c972eaa53d6dea7359a2b555c667d3e59fb1000dccdea5a454789cabcd","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"b04a30c972eaa53d6dea7359a2b555c667d3e59fb1000dccdea5a454789cabcd","first_computed_at":"2026-05-18T02:21:52.479376Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:21:52.479376Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"tqp7MIrz5x8d+82pqi1zjAQJINbvFuHV8WBvOdbJPu8bAjY1d3ZiPIfOHy4u4bEGnOMcbXoqlqOJflRdsc/fBw==","signature_status":"signed_v1","signed_at":"2026-05-18T02:21:52.480087Z","signed_message":"canonical_sha256_bytes"},"source_id":"1105.3760","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:71a4bad89af669d9947be651426063cb3ca0640cc895ba3f8aa02ae0fdb1206f","sha256:118f625bcdd48d3be5eb512c2412450f9ff472323a012ccaff8424d05def3a43"],"state_sha256":"b36979fc15763492ed831bf0a3f330fb7db8a82f8efbf114bb0cd2ffcb4182f4"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"SbXvtpHhOhLnrfdtY2Zi705EdTFwADPf4CZVYkbCm7gAxVIowy8vTx0EJHUtm0WnlU91jHdnB9Chu549U2uJDQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-04T01:38:20.218477Z","bundle_sha256":"b52d7e5f008d1268486763c885913b24a995cf1f40a5aa15344c995e6c34c552"}}