{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2026:FBAR5MABTK4JHVMN4B65SK76LV","short_pith_number":"pith:FBAR5MAB","canonical_record":{"source":{"id":"2607.20126","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.IM","submitted_at":"2026-07-22T13:29:47Z","cross_cats_sorted":["physics.ins-det"],"title_canon_sha256":"bf563cf3a225d2fa2c58457b38c4ab0847d5a2c4ab0ddde6518040a06e5ca3e4","abstract_canon_sha256":"6f5bed712d02244c1576340c31216ab0c05013343d9cd6c3724bb86fadd697ec"},"schema_version":"1.0"},"canonical_sha256":"28411eb0019ab893d58de07dd92bfe5d7652559688811edf52d9ce5d35c690f5","source":{"kind":"arxiv","id":"2607.20126","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2607.20126","created_at":"2026-07-23T01:25:02Z"},{"alias_kind":"arxiv_version","alias_value":"2607.20126v1","created_at":"2026-07-23T01:25:02Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2607.20126","created_at":"2026-07-23T01:25:02Z"},{"alias_kind":"pith_short_12","alias_value":"FBAR5MABTK4J","created_at":"2026-07-23T01:25:02Z"},{"alias_kind":"pith_short_16","alias_value":"FBAR5MABTK4JHVMN","created_at":"2026-07-23T01:25:02Z"},{"alias_kind":"pith_short_8","alias_value":"FBAR5MAB","created_at":"2026-07-23T01:25:02Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2026:FBAR5MABTK4JHVMN4B65SK76LV","target":"record","payload":{"canonical_record":{"source":{"id":"2607.20126","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.IM","submitted_at":"2026-07-22T13:29:47Z","cross_cats_sorted":["physics.ins-det"],"title_canon_sha256":"bf563cf3a225d2fa2c58457b38c4ab0847d5a2c4ab0ddde6518040a06e5ca3e4","abstract_canon_sha256":"6f5bed712d02244c1576340c31216ab0c05013343d9cd6c3724bb86fadd697ec"},"schema_version":"1.0"},"canonical_sha256":"28411eb0019ab893d58de07dd92bfe5d7652559688811edf52d9ce5d35c690f5","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-23T01:25:02.790953Z","signature_b64":"h/mnI7In/kwt3LObDNgiVvOckr1bhVcFeC6V7lMmBvCin7ZtuTtYeaoBFnqARtOnti4k+9P3K0gedYPXkdZRDg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"28411eb0019ab893d58de07dd92bfe5d7652559688811edf52d9ce5d35c690f5","last_reissued_at":"2026-07-23T01:25:02.790134Z","signature_status":"signed_v1","first_computed_at":"2026-07-23T01:25:02.790134Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2607.20126","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":"2026-07-23T01:25:02Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"rMF031SgHHal+lWiUaL69vCYGstwii03g9uJ4VNWMDO1rGdjId7oMSCLgfxBq9GpusS1v7OKPeik2l9iSOe7Cg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-06T10:10:24.641221Z"},"content_sha256":"860af99f5a5828c1e52593b8e36a0c0fb0fad7c68edd9688253cf58bb47264f9","schema_version":"1.0","event_id":"sha256:860af99f5a5828c1e52593b8e36a0c0fb0fad7c68edd9688253cf58bb47264f9"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2026:FBAR5MABTK4JHVMN4B65SK76LV","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Skipper CCD readout time optimization for astronomical applications","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["physics.ins-det"],"primary_cat":"astro-ph.IM","authors_text":"Andrin Fazan, Johannes W\\\"uthrich, Marcelle Soares-Santos, Sean MacBride","submitted_at":"2026-07-22T13:29:47Z","abstract_excerpt":"Skipper CCDs enable the reduction of CCD readout noise by non-destructively measuring the individual pixel charge packets multiple times. This readout noise reduction has attracted considerable interest in the astronomical community, particularly in spectroscopic surveys targeting faint objects at high redshifts. However, noise reduction via repetitive sampling leads to an unavoidable increase in readout time, often to prohibitive levels. To enable their use in astronomical applications, the optimal operation regime of Skipper CCDs must be determined, balancing noise improvement and readout ti"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2607.20126","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2607.20126/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"},"verdict_id":null},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-07-23T01:25:02Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Jqnvd8d0TTNn5gSIbtfwYQhui0yj9FunlJuiZtHXtPivApsjfFSGnjl9nmTXRHyQsW8kdxXlzQyQ4xkA+T7IBA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-06T10:10:24.642234Z"},"content_sha256":"a2a7c165690c93a4022d21ca9353cc13ad2dddde59111d5ac7ab744963610a2e","schema_version":"1.0","event_id":"sha256:a2a7c165690c93a4022d21ca9353cc13ad2dddde59111d5ac7ab744963610a2e"},{"event_type":"integrity_finding","subject_pith_number":"pith:2026:FBAR5MABTK4JHVMN4B65SK76LV","target":"integrity","payload":{"note":"DOI in the printed bibliography is fragmented by whitespace or line breaks. A longer candidate (10.1088/1748-0221/18/08/P08016) was visible in the surrounding text but could not be confirmed against doi.org as printed.","snippet":"Cervantes-Vergara, B. A., Perez, S., Estrada, J., Botti, A., Chavez, C. R., et al., “Skipper-CCD Sensors for the Oscura Experiment: Requirements and Preliminary Tests,”18(08), P08016 (2023). doi:10.1088/1748- 0221/18/08/P08016","arxiv_id":"2607.20126","detector":"doi_compliance","evidence":{"ref_index":9,"verdict_class":"incontrovertible","resolved_title":null,"printed_excerpt":"10.1088/1748-","reconstructed_doi":"10.1088/1748-0221/18/08/P08016"},"severity":"advisory","ref_index":9,"audited_at":"2026-08-01T10:59:59.816105Z","event_type":"pith.integrity.v1","detected_doi":"10.1088/1748-0221/18/08/P08016","detector_url":"https://pith.science/pith-integrity-protocol#doi_compliance","external_url":null,"finding_type":"recoverable_identifier","evidence_hash":"4e7da18cf230bec8e24ce4a42ce1a962a1fe55ead8143fc9c412e542ba7a8634","paper_version":1,"verdict_class":"incontrovertible","resolved_title":null,"detector_version":"1.1.0","detected_arxiv_id":null,"integrity_event_id":15653,"payload_sha256":"235dfe7d14b0f95df6599454ab5f836c9bec217dd7fc8a1a40bd555d7ac3b38d","signature_b64":"VFCkh6i2k2FI6ixqQ7rOCmCrHOI8d/e8d2KnpEHJ/3xteTJ2KUlt6ztjMa9s/sNcBdGvTLjbe47I2UtcX1dTAA==","signing_key_id":"pith-v1-2026-05"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-08-01T11:03:34Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"mKsvma4akwos59PSq+gxA1iMRQq1JmUp+nXDi7he+AUxKouKJtH1l8sEuPpKmIjLKZYJ4iEuKAiVjeipaUQ2CQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-06T10:10:24.648034Z"},"content_sha256":"05fc2679ee9d0220fa1ee9510059be00bbf93004a3c50d13f152e4723aa64514","schema_version":"1.0","event_id":"sha256:05fc2679ee9d0220fa1ee9510059be00bbf93004a3c50d13f152e4723aa64514"},{"event_type":"integrity_finding","subject_pith_number":"pith:2026:FBAR5MABTK4JHVMN4B65SK76LV","target":"integrity","payload":{"note":"DOI in the printed bibliography is fragmented by whitespace or line breaks. A longer candidate (10.1007/s10686-012-9298-x) was visible in the surrounding text but could not be confirmed against doi.org as printed.","snippet":"Fern´ andez Moroni, G., Estrada, J., Cancelo, G., Holland, S. E., Paolini, E. E., et al., “Sub-electron readout noise in a Skipper CCD fabricated on high resistivity silicon,”34(1), 43–64 (2012). doi:10.1007/s10686- 012-9298-x","arxiv_id":"2607.20126","detector":"doi_compliance","evidence":{"ref_index":5,"verdict_class":"incontrovertible","resolved_title":null,"printed_excerpt":"10.1007/s10686-","reconstructed_doi":"10.1007/s10686-012-9298-x"},"severity":"advisory","ref_index":5,"audited_at":"2026-08-01T10:59:59.816105Z","event_type":"pith.integrity.v1","detected_doi":"10.1007/s10686-012-9298-x","detector_url":"https://pith.science/pith-integrity-protocol#doi_compliance","external_url":null,"finding_type":"recoverable_identifier","evidence_hash":"40eac7a0c026c0e928481e32383a64eb0df1907057cf44321b8161f6410da6b8","paper_version":1,"verdict_class":"incontrovertible","resolved_title":null,"detector_version":"1.1.0","detected_arxiv_id":null,"integrity_event_id":15652,"payload_sha256":"36590bd33054c90c6034f15da920ffacaf4d9603339516f2038ae160ca354d83","signature_b64":"lF5F1FPiuB2hrOvevjoY6y6h6vtzgWXRPmWI+kKib0yqtg7u3vS9pdZyEU6GWECZXN2+H/u5Uc2V8wCR32kOAQ==","signing_key_id":"pith-v1-2026-05"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-08-01T11:03:34Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"3Hk9fWvzeBflz1p3BEj35RbsoAQMM0tU+xesxsz+yoVMaWG1j4rgsC4Zo3lifVfm8HZweb7NYrjJZdrCvup5AA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-06T10:10:24.648437Z"},"content_sha256":"0c4899c75680116a16bace5d692eea4b5f7af54061c4da97664887c1ddfa0565","schema_version":"1.0","event_id":"sha256:0c4899c75680116a16bace5d692eea4b5f7af54061c4da97664887c1ddfa0565"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/FBAR5MABTK4JHVMN4B65SK76LV/bundle.json","state_url":"https://pith.science/pith/FBAR5MABTK4JHVMN4B65SK76LV/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/FBAR5MABTK4JHVMN4B65SK76LV/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":"2026-08-06T10:10:24Z","links":{"resolver":"https://pith.science/pith/FBAR5MABTK4JHVMN4B65SK76LV","bundle":"https://pith.science/pith/FBAR5MABTK4JHVMN4B65SK76LV/bundle.json","state":"https://pith.science/pith/FBAR5MABTK4JHVMN4B65SK76LV/state.json","well_known_bundle":"https://pith.science/.well-known/pith/FBAR5MABTK4JHVMN4B65SK76LV/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2026:FBAR5MABTK4JHVMN4B65SK76LV","merge_version":"pith-open-graph-merge-v1","event_count":4,"valid_event_count":4,"invalid_event_count":0,"equivocation_count":1,"current":{"canonical_record":{"metadata":{"abstract_canon_sha256":"6f5bed712d02244c1576340c31216ab0c05013343d9cd6c3724bb86fadd697ec","cross_cats_sorted":["physics.ins-det"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.IM","submitted_at":"2026-07-22T13:29:47Z","title_canon_sha256":"bf563cf3a225d2fa2c58457b38c4ab0847d5a2c4ab0ddde6518040a06e5ca3e4"},"schema_version":"1.0","source":{"id":"2607.20126","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2607.20126","created_at":"2026-07-23T01:25:02Z"},{"alias_kind":"arxiv_version","alias_value":"2607.20126v1","created_at":"2026-07-23T01:25:02Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2607.20126","created_at":"2026-07-23T01:25:02Z"},{"alias_kind":"pith_short_12","alias_value":"FBAR5MABTK4J","created_at":"2026-07-23T01:25:02Z"},{"alias_kind":"pith_short_16","alias_value":"FBAR5MABTK4JHVMN","created_at":"2026-07-23T01:25:02Z"},{"alias_kind":"pith_short_8","alias_value":"FBAR5MAB","created_at":"2026-07-23T01:25:02Z"}],"graph_snapshots":[{"event_id":"sha256:a2a7c165690c93a4022d21ca9353cc13ad2dddde59111d5ac7ab744963610a2e","target":"graph","created_at":"2026-07-23T01:25:02Z","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"},"integrity":{"available":true,"clean":true,"detectors_run":[],"endpoint":"/pith/2607.20126/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Skipper CCDs enable the reduction of CCD readout noise by non-destructively measuring the individual pixel charge packets multiple times. This readout noise reduction has attracted considerable interest in the astronomical community, particularly in spectroscopic surveys targeting faint objects at high redshifts. However, noise reduction via repetitive sampling leads to an unavoidable increase in readout time, often to prohibitive levels. To enable their use in astronomical applications, the optimal operation regime of Skipper CCDs must be determined, balancing noise improvement and readout ti","authors_text":"Andrin Fazan, Johannes W\\\"uthrich, Marcelle Soares-Santos, Sean MacBride","cross_cats":["physics.ins-det"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.IM","submitted_at":"2026-07-22T13:29:47Z","title":"Skipper CCD readout time optimization for astronomical applications"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2607.20126","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":"sha256:860af99f5a5828c1e52593b8e36a0c0fb0fad7c68edd9688253cf58bb47264f9","target":"record","created_at":"2026-07-23T01:25:02Z","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":"6f5bed712d02244c1576340c31216ab0c05013343d9cd6c3724bb86fadd697ec","cross_cats_sorted":["physics.ins-det"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.IM","submitted_at":"2026-07-22T13:29:47Z","title_canon_sha256":"bf563cf3a225d2fa2c58457b38c4ab0847d5a2c4ab0ddde6518040a06e5ca3e4"},"schema_version":"1.0","source":{"id":"2607.20126","kind":"arxiv","version":1}},"canonical_sha256":"28411eb0019ab893d58de07dd92bfe5d7652559688811edf52d9ce5d35c690f5","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"28411eb0019ab893d58de07dd92bfe5d7652559688811edf52d9ce5d35c690f5","first_computed_at":"2026-07-23T01:25:02.790134Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-23T01:25:02.790134Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"h/mnI7In/kwt3LObDNgiVvOckr1bhVcFeC6V7lMmBvCin7ZtuTtYeaoBFnqARtOnti4k+9P3K0gedYPXkdZRDg==","signature_status":"signed_v1","signed_at":"2026-07-23T01:25:02.790953Z","signed_message":"canonical_sha256_bytes"},"source_id":"2607.20126","source_kind":"arxiv","source_version":1}}},"equivocations":[{"signer_id":"pith.science","event_type":"integrity_finding","target":"integrity","event_ids":["sha256:05fc2679ee9d0220fa1ee9510059be00bbf93004a3c50d13f152e4723aa64514","sha256:0c4899c75680116a16bace5d692eea4b5f7af54061c4da97664887c1ddfa0565"]}],"invalid_events":[],"applied_event_ids":["sha256:860af99f5a5828c1e52593b8e36a0c0fb0fad7c68edd9688253cf58bb47264f9","sha256:a2a7c165690c93a4022d21ca9353cc13ad2dddde59111d5ac7ab744963610a2e"],"state_sha256":"a0d370ef437dac3c316b896fa4cb772368e7dcce938470480a41ae577771cb15"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"49ONS9z5j+IUMjnO9ceNY9Y194fydls4QmXzm69zkMXNWLjrMOw2WjCzUwZqK/czExq9m3TetyQiic3uBO3lBA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-06T10:10:24.653276Z","bundle_sha256":"d954799b807452ec31e3298c8ee941bce2057f30189c2f082c01900a000ec2c5"}}