{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2019:5IOI5OUTBSOL6VY5OUEIUK2M5Q","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":"b236b7154eacf364b46e0691cd10c303ce394cf6c61cf9b6c4105f5af646ed70","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.IM","submitted_at":"2019-03-20T11:15:31Z","title_canon_sha256":"9b8842e821d4411686ab18a24df151be330b4cebab89b4b9bc5d7713d953c572"},"schema_version":"1.0","source":{"id":"1903.08444","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1903.08444","created_at":"2026-05-17T23:46:47Z"},{"alias_kind":"arxiv_version","alias_value":"1903.08444v1","created_at":"2026-05-17T23:46:47Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1903.08444","created_at":"2026-05-17T23:46:47Z"},{"alias_kind":"pith_short_12","alias_value":"5IOI5OUTBSOL","created_at":"2026-05-18T12:33:10Z"},{"alias_kind":"pith_short_16","alias_value":"5IOI5OUTBSOL6VY5","created_at":"2026-05-18T12:33:10Z"},{"alias_kind":"pith_short_8","alias_value":"5IOI5OUT","created_at":"2026-05-18T12:33:10Z"}],"graph_snapshots":[{"event_id":"sha256:c45fe5eb2de5cb30690c97d5e1502ba07c01b5a4eb535f4df60d266b8a912943","target":"graph","created_at":"2026-05-17T23:46:47Z","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 implement an electron avalanche photodiode (e-APD) in the MIRC-X instrument, upgrade of the 6-telescope near-infrared imager MIRC, at the CHARA array. This technology should improve the sensitivity of near-infrared interferometry. We first used the classical Mean-Variance analysis to measure the system gain and the amplification gain. We then developed a physical model of the statistical distribution of the camera output signal. This model is based on multiple convolutions of the Poisson statistic, the intrinsic avalanche gain distribution, and the observed distribution of the background si","authors_text":"C. Lanthermann, J.-B. Le Bouquin, J. D. Monnier, K. Perraut, N. Anugu, S. Kraus","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.IM","submitted_at":"2019-03-20T11:15:31Z","title":"Modeling the e-APD SAPHIRA/C-RED ONE camera at low flux level: an attempt of photon counting in the near-infrared with the MIRC-X interferometric combiner"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1903.08444","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:c9fca6108f87ab715eb02f59c4345b553631c0891a9b0c04d327f450f9baebe0","target":"record","created_at":"2026-05-17T23:46:47Z","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":"b236b7154eacf364b46e0691cd10c303ce394cf6c61cf9b6c4105f5af646ed70","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.IM","submitted_at":"2019-03-20T11:15:31Z","title_canon_sha256":"9b8842e821d4411686ab18a24df151be330b4cebab89b4b9bc5d7713d953c572"},"schema_version":"1.0","source":{"id":"1903.08444","kind":"arxiv","version":1}},"canonical_sha256":"ea1c8eba930c9cbf571d75088a2b4cec0eae7aac0055758779fcdfa8432e07eb","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"ea1c8eba930c9cbf571d75088a2b4cec0eae7aac0055758779fcdfa8432e07eb","first_computed_at":"2026-05-17T23:46:47.138053Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-17T23:46:47.138053Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"39Y6v4m4xOZ16XmyUJkrR2xGk4uWH5fBUTyqeBq8C/MbfTxFqCF3TqEh4mMOjMc0Gf043EGkZCtbBuLrgpLKBw==","signature_status":"signed_v1","signed_at":"2026-05-17T23:46:47.138533Z","signed_message":"canonical_sha256_bytes"},"source_id":"1903.08444","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:c9fca6108f87ab715eb02f59c4345b553631c0891a9b0c04d327f450f9baebe0","sha256:c45fe5eb2de5cb30690c97d5e1502ba07c01b5a4eb535f4df60d266b8a912943"],"state_sha256":"48e5ffb8307e2bd9638d2323cc86a301f0e3ab202abe7a71cd658a142d3c708e"}