{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2019:42GT537LI6BY7NE3X4HVWVGOJ6","short_pith_number":"pith:42GT537L","schema_version":"1.0","canonical_sha256":"e68d3eefeb47838fb49bbf0f5b54ce4f9075528742e75cfdf4536da56e7cddc2","source":{"kind":"arxiv","id":"1905.08677","version":2},"attestation_state":"computed","paper":{"title":"The shape of the Photon Transfer Curve of CCD sensors","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.IM","authors_text":"Claire Juramy, Eduardo Sepulveda, Laurent Le Guillou, Pierre Antilogus, Pierre Astier, R\\'emy Le Breton, The Dark Energy Science Collaboration","submitted_at":"2019-05-21T14:48:05Z","abstract_excerpt":"The Photon Transfer Curve (PTC) of a CCD depicts the variance of uniform images as a function of their average. It is now well established that the variance is not proportional to the average, as Poisson statistics would indicate, but rather flattens out at high flux. This \"variance deficit\", related to the brighter-fatter effect, feeds correlations between nearby pixels, that increase with flux, and decay with distance. We propose an analytical expression for the PTC shape, and for the dependence of correlations with intensity, and relate both to some more basic quantities related to the elec"},"verification_status":{"content_addressed":true,"pith_receipt":true,"author_attested":false,"weak_author_claims":0,"strong_author_claims":0,"externally_anchored":false,"storage_verified":false,"citation_signatures":0,"replication_records":0,"graph_snapshot":true,"references_resolved":false,"formal_links_present":false},"canonical_record":{"source":{"id":"1905.08677","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.IM","submitted_at":"2019-05-21T14:48:05Z","cross_cats_sorted":[],"title_canon_sha256":"9988b23da071f73c7d4a703bf975e9f32ce924ff118fde61c88cdaa5fca0471f","abstract_canon_sha256":"600ac9f2aab6dc6f1605710d529a1ff83ac0a081fd0109941c5cccfe50108555"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T00:03:15.110049Z","signature_b64":"XpjGo+8Tlb6PvU5wkQjMAMiOBFalp1WqVTM9VWpVvKL443dYoNdkgt698xlQvUB+lrvXBGQ5FDTWbaz2hVEYAA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"e68d3eefeb47838fb49bbf0f5b54ce4f9075528742e75cfdf4536da56e7cddc2","last_reissued_at":"2026-07-05T00:03:15.109651Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T00:03:15.109651Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"The shape of the Photon Transfer Curve of CCD sensors","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.IM","authors_text":"Claire Juramy, Eduardo Sepulveda, Laurent Le Guillou, Pierre Antilogus, Pierre Astier, R\\'emy Le Breton, The Dark Energy Science Collaboration","submitted_at":"2019-05-21T14:48:05Z","abstract_excerpt":"The Photon Transfer Curve (PTC) of a CCD depicts the variance of uniform images as a function of their average. It is now well established that the variance is not proportional to the average, as Poisson statistics would indicate, but rather flattens out at high flux. This \"variance deficit\", related to the brighter-fatter effect, feeds correlations between nearby pixels, that increase with flux, and decay with distance. We propose an analytical expression for the PTC shape, and for the dependence of correlations with intensity, and relate both to some more basic quantities related to the elec"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1905.08677","kind":"arxiv","version":2},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/1905.08677/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"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"},"aliases":[{"alias_kind":"arxiv","alias_value":"1905.08677","created_at":"2026-07-05T00:03:15.109708+00:00"},{"alias_kind":"arxiv_version","alias_value":"1905.08677v2","created_at":"2026-07-05T00:03:15.109708+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1905.08677","created_at":"2026-07-05T00:03:15.109708+00:00"},{"alias_kind":"pith_short_12","alias_value":"42GT537LI6BY","created_at":"2026-07-05T00:03:15.109708+00:00"},{"alias_kind":"pith_short_16","alias_value":"42GT537LI6BY7NE3","created_at":"2026-07-05T00:03:15.109708+00:00"},{"alias_kind":"pith_short_8","alias_value":"42GT537L","created_at":"2026-07-05T00:03:15.109708+00:00"}],"events":[],"event_summary":{},"paper_claims":[],"inbound_citations":{"count":0,"internal_anchor_count":0,"sample":[]},"formal_canon":{"evidence_count":0,"sample":[],"anchors":[]},"links":{"html":"https://pith.science/pith/42GT537LI6BY7NE3X4HVWVGOJ6","json":"https://pith.science/pith/42GT537LI6BY7NE3X4HVWVGOJ6.json","graph_json":"https://pith.science/api/pith-number/42GT537LI6BY7NE3X4HVWVGOJ6/graph.json","events_json":"https://pith.science/api/pith-number/42GT537LI6BY7NE3X4HVWVGOJ6/events.json","paper":"https://pith.science/paper/42GT537L"},"agent_actions":{"view_html":"https://pith.science/pith/42GT537LI6BY7NE3X4HVWVGOJ6","download_json":"https://pith.science/pith/42GT537LI6BY7NE3X4HVWVGOJ6.json","view_paper":"https://pith.science/paper/42GT537L","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1905.08677&json=true","fetch_graph":"https://pith.science/api/pith-number/42GT537LI6BY7NE3X4HVWVGOJ6/graph.json","fetch_events":"https://pith.science/api/pith-number/42GT537LI6BY7NE3X4HVWVGOJ6/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/42GT537LI6BY7NE3X4HVWVGOJ6/action/timestamp_anchor","attest_storage":"https://pith.science/pith/42GT537LI6BY7NE3X4HVWVGOJ6/action/storage_attestation","attest_author":"https://pith.science/pith/42GT537LI6BY7NE3X4HVWVGOJ6/action/author_attestation","sign_citation":"https://pith.science/pith/42GT537LI6BY7NE3X4HVWVGOJ6/action/citation_signature","submit_replication":"https://pith.science/pith/42GT537LI6BY7NE3X4HVWVGOJ6/action/replication_record"}},"created_at":"2026-07-05T00:03:15.109708+00:00","updated_at":"2026-07-05T00:03:15.109708+00:00"}