{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2014:ZPO6RFJ7C3JVJHPX2MNXV6SYNF","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":"f42ba067934c7fe71122cf376b733682fc6f3be97e1ca69d858ea1b657b00490","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.ins-det","submitted_at":"2014-11-03T20:49:22Z","title_canon_sha256":"b687db1403490040df10ed2daf67b4da522b39808069f96b1fc63135c0531c07"},"schema_version":"1.0","source":{"id":"1411.0653","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1411.0653","created_at":"2026-05-18T02:38:44Z"},{"alias_kind":"arxiv_version","alias_value":"1411.0653v1","created_at":"2026-05-18T02:38:44Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1411.0653","created_at":"2026-05-18T02:38:44Z"},{"alias_kind":"pith_short_12","alias_value":"ZPO6RFJ7C3JV","created_at":"2026-05-18T12:28:59Z"},{"alias_kind":"pith_short_16","alias_value":"ZPO6RFJ7C3JVJHPX","created_at":"2026-05-18T12:28:59Z"},{"alias_kind":"pith_short_8","alias_value":"ZPO6RFJ7","created_at":"2026-05-18T12:28:59Z"}],"graph_snapshots":[{"event_id":"sha256:e71aa5f08a9695ad252fbd06a580e1180cb75e21313ed4811088c1b1818cd383","target":"graph","created_at":"2026-05-18T02:38:44Z","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 the temporal evolution of the afterpulse probability in a free-running negative feedback avalanche diode (NFAD) over an extended range, from $\\sim$300 ns to $\\sim$1 ms. This is possible thanks to an extremely low dark count rate on the order of 1 cps at 10% efficiency, achieved by operating the NFAD at a temperatures as low as 143 K. Experimental results in a large range of operating temperatures (223-143 K) are compared with a legacy afterpulsing model based on multiple trap families at discrete energy levels, which is found to be lacking in physical completeness. Subsequently","authors_text":"Boris Korzh, Gianluca Boso, Hugo Zbinden, Kateryna Kuzmenko, Tommaso Lunghi","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.ins-det","submitted_at":"2014-11-03T20:49:22Z","title":"Afterpulsing studies of low noise InGaAs/InP single-photon negative feedback avalanche diodes"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1411.0653","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:d95d3357a32e2ee19bcca613ea712803df2f28c4ab94760edc449c2a736f4418","target":"record","created_at":"2026-05-18T02:38:44Z","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":"f42ba067934c7fe71122cf376b733682fc6f3be97e1ca69d858ea1b657b00490","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.ins-det","submitted_at":"2014-11-03T20:49:22Z","title_canon_sha256":"b687db1403490040df10ed2daf67b4da522b39808069f96b1fc63135c0531c07"},"schema_version":"1.0","source":{"id":"1411.0653","kind":"arxiv","version":1}},"canonical_sha256":"cbdde8953f16d3549df7d31b7afa58695aacbf0ba3db7ffe02048942e18e4926","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"cbdde8953f16d3549df7d31b7afa58695aacbf0ba3db7ffe02048942e18e4926","first_computed_at":"2026-05-18T02:38:44.875666Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:38:44.875666Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"a8ATPn3LemixF4ba6A8dgyogD7s11rGfyI1ZdxKrRb9PI7cjprqKJdAIjrbqQ19OepOPAkViiTQzbSD/7cmzDg==","signature_status":"signed_v1","signed_at":"2026-05-18T02:38:44.876327Z","signed_message":"canonical_sha256_bytes"},"source_id":"1411.0653","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:d95d3357a32e2ee19bcca613ea712803df2f28c4ab94760edc449c2a736f4418","sha256:e71aa5f08a9695ad252fbd06a580e1180cb75e21313ed4811088c1b1818cd383"],"state_sha256":"4854a45370afb8a8aaf7d42f0da13518ad40f771d524cc925af14836f6eecc11"}