{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2023:XTZBDAJKHIIUNAARM6MYYU6TBP","short_pith_number":"pith:XTZBDAJK","canonical_record":{"source":{"id":"2302.02211","kind":"arxiv","version":2},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.IM","submitted_at":"2023-02-04T17:49:08Z","cross_cats_sorted":["astro-ph.HE"],"title_canon_sha256":"2b0c38a2b89478dedb8cc4c35413cbe4a8131b1e82465fff4f57a04ccd3be187","abstract_canon_sha256":"0607f6a1a168df55b77051cacb416ea4c9dc8e3dc990173212a7a8b4ea7a0c72"},"schema_version":"1.0"},"canonical_sha256":"bcf211812a3a1146801167998c53d30be3606b3d13f880d066c9d689d5a56a9d","source":{"kind":"arxiv","id":"2302.02211","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2302.02211","created_at":"2026-07-05T06:19:55Z"},{"alias_kind":"arxiv_version","alias_value":"2302.02211v2","created_at":"2026-07-05T06:19:55Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2302.02211","created_at":"2026-07-05T06:19:55Z"},{"alias_kind":"pith_short_12","alias_value":"XTZBDAJKHIIU","created_at":"2026-07-05T06:19:55Z"},{"alias_kind":"pith_short_16","alias_value":"XTZBDAJKHIIUNAAR","created_at":"2026-07-05T06:19:55Z"},{"alias_kind":"pith_short_8","alias_value":"XTZBDAJK","created_at":"2026-07-05T06:19:55Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2023:XTZBDAJKHIIUNAARM6MYYU6TBP","target":"record","payload":{"canonical_record":{"source":{"id":"2302.02211","kind":"arxiv","version":2},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.IM","submitted_at":"2023-02-04T17:49:08Z","cross_cats_sorted":["astro-ph.HE"],"title_canon_sha256":"2b0c38a2b89478dedb8cc4c35413cbe4a8131b1e82465fff4f57a04ccd3be187","abstract_canon_sha256":"0607f6a1a168df55b77051cacb416ea4c9dc8e3dc990173212a7a8b4ea7a0c72"},"schema_version":"1.0"},"canonical_sha256":"bcf211812a3a1146801167998c53d30be3606b3d13f880d066c9d689d5a56a9d","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T06:19:55.918738Z","signature_b64":"WcvvwhooypHza184lXOE3YvTaC/EOCwb2akx2AbhieJkCs7HZ/F0MhqalA7YNPt65CrYl/6eLIzv6ZoFA5S5DA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"bcf211812a3a1146801167998c53d30be3606b3d13f880d066c9d689d5a56a9d","last_reissued_at":"2026-07-05T06:19:55.918356Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T06:19:55.918356Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2302.02211","source_version":2,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-07-05T06:19:55Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"DHW2E9jtUHvsRDVhvge7B7sOrn3GmXcneeC6fIoAHa94rvbraUPRbX+apc4puLpgtemCGye7urGGJNIMxqTICQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-07T03:48:32.016501Z"},"content_sha256":"f8c006ee97a8f9a67258456bf66a051bed976eaa211159a37f0e0666226b5aa4","schema_version":"1.0","event_id":"sha256:f8c006ee97a8f9a67258456bf66a051bed976eaa211159a37f0e0666226b5aa4"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2023:XTZBDAJKHIIUNAARM6MYYU6TBP","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Performance and systematic uncertainties of CTA-North in conditions of reduced atmospheric transmission","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":["astro-ph.HE"],"primary_cat":"astro-ph.IM","authors_text":"Dario Hrupec, Dijana Dominis Prester, Julian Sitarek, Lovro Pavleti\\'c, Mario Pecimotika, Sa\\v{s}a Mi\\'canovi\\'c","submitted_at":"2023-02-04T17:49:08Z","abstract_excerpt":"The Cherenkov Telescope Array (CTA) is the next-generation stereoscopic system of Imaging Atmospheric Cherenkov Telescopes (IACTs). In IACTs, the atmosphere is used as a calorimeter to measure the energy of extensive air showers induced by cosmic gamma rays, which brings along a series of constraints on the precision to which energy can be reconstructed. The presence of clouds during observations can severely affect Cherenkov light yield, contributing to the systematic uncertainty in energy scale calibration. To minimize these systematic uncertainties, a calibration of telescopes is of great i"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2302.02211","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/2302.02211/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":"2026-07-05T06:19:55Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"VYgLtGwGj+IVd9PCSymukcjpI1ltjSp3sGBQeU0IF0TNZW/F30IB+aFFOIZD2Z97ABdfGmdSdq+o1IBGwbr2Dw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-07T03:48:32.016874Z"},"content_sha256":"4e10165fc750d4197d23471702d46169b68948a5100bc91827f0c11babb658fc","schema_version":"1.0","event_id":"sha256:4e10165fc750d4197d23471702d46169b68948a5100bc91827f0c11babb658fc"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/XTZBDAJKHIIUNAARM6MYYU6TBP/bundle.json","state_url":"https://pith.science/pith/XTZBDAJKHIIUNAARM6MYYU6TBP/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/XTZBDAJKHIIUNAARM6MYYU6TBP/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":"2026-07-07T03:48:32Z","links":{"resolver":"https://pith.science/pith/XTZBDAJKHIIUNAARM6MYYU6TBP","bundle":"https://pith.science/pith/XTZBDAJKHIIUNAARM6MYYU6TBP/bundle.json","state":"https://pith.science/pith/XTZBDAJKHIIUNAARM6MYYU6TBP/state.json","well_known_bundle":"https://pith.science/.well-known/pith/XTZBDAJKHIIUNAARM6MYYU6TBP/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2023:XTZBDAJKHIIUNAARM6MYYU6TBP","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":"0607f6a1a168df55b77051cacb416ea4c9dc8e3dc990173212a7a8b4ea7a0c72","cross_cats_sorted":["astro-ph.HE"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.IM","submitted_at":"2023-02-04T17:49:08Z","title_canon_sha256":"2b0c38a2b89478dedb8cc4c35413cbe4a8131b1e82465fff4f57a04ccd3be187"},"schema_version":"1.0","source":{"id":"2302.02211","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2302.02211","created_at":"2026-07-05T06:19:55Z"},{"alias_kind":"arxiv_version","alias_value":"2302.02211v2","created_at":"2026-07-05T06:19:55Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2302.02211","created_at":"2026-07-05T06:19:55Z"},{"alias_kind":"pith_short_12","alias_value":"XTZBDAJKHIIU","created_at":"2026-07-05T06:19:55Z"},{"alias_kind":"pith_short_16","alias_value":"XTZBDAJKHIIUNAAR","created_at":"2026-07-05T06:19:55Z"},{"alias_kind":"pith_short_8","alias_value":"XTZBDAJK","created_at":"2026-07-05T06:19:55Z"}],"graph_snapshots":[{"event_id":"sha256:4e10165fc750d4197d23471702d46169b68948a5100bc91827f0c11babb658fc","target":"graph","created_at":"2026-07-05T06:19:55Z","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/2302.02211/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"The Cherenkov Telescope Array (CTA) is the next-generation stereoscopic system of Imaging Atmospheric Cherenkov Telescopes (IACTs). In IACTs, the atmosphere is used as a calorimeter to measure the energy of extensive air showers induced by cosmic gamma rays, which brings along a series of constraints on the precision to which energy can be reconstructed. The presence of clouds during observations can severely affect Cherenkov light yield, contributing to the systematic uncertainty in energy scale calibration. To minimize these systematic uncertainties, a calibration of telescopes is of great i","authors_text":"Dario Hrupec, Dijana Dominis Prester, Julian Sitarek, Lovro Pavleti\\'c, Mario Pecimotika, Sa\\v{s}a Mi\\'canovi\\'c","cross_cats":["astro-ph.HE"],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.IM","submitted_at":"2023-02-04T17:49:08Z","title":"Performance and systematic uncertainties of CTA-North in conditions of reduced atmospheric transmission"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2302.02211","kind":"arxiv","version":2},"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:f8c006ee97a8f9a67258456bf66a051bed976eaa211159a37f0e0666226b5aa4","target":"record","created_at":"2026-07-05T06:19:55Z","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":"0607f6a1a168df55b77051cacb416ea4c9dc8e3dc990173212a7a8b4ea7a0c72","cross_cats_sorted":["astro-ph.HE"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.IM","submitted_at":"2023-02-04T17:49:08Z","title_canon_sha256":"2b0c38a2b89478dedb8cc4c35413cbe4a8131b1e82465fff4f57a04ccd3be187"},"schema_version":"1.0","source":{"id":"2302.02211","kind":"arxiv","version":2}},"canonical_sha256":"bcf211812a3a1146801167998c53d30be3606b3d13f880d066c9d689d5a56a9d","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"bcf211812a3a1146801167998c53d30be3606b3d13f880d066c9d689d5a56a9d","first_computed_at":"2026-07-05T06:19:55.918356Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T06:19:55.918356Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"WcvvwhooypHza184lXOE3YvTaC/EOCwb2akx2AbhieJkCs7HZ/F0MhqalA7YNPt65CrYl/6eLIzv6ZoFA5S5DA==","signature_status":"signed_v1","signed_at":"2026-07-05T06:19:55.918738Z","signed_message":"canonical_sha256_bytes"},"source_id":"2302.02211","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:f8c006ee97a8f9a67258456bf66a051bed976eaa211159a37f0e0666226b5aa4","sha256:4e10165fc750d4197d23471702d46169b68948a5100bc91827f0c11babb658fc"],"state_sha256":"2e9c755d8fb0689a9fb82f529b52d4522366a67f445292cb9083bc906585229e"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"oPTcOCZuRl8FpZASbkkIQVKiZXN9NG8Bcbbg7coM+yr8Clqz74+eOenobmvfC0cmxfKjOdXhDv3s7FzT/n6LBQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-07-07T03:48:32.019014Z","bundle_sha256":"e1bb146a57db224428247a8a1c87a8ddb198ac7eac98b65692276963ad31630a"}}