{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2015:KL4UMOZ26MNOPBH7YYYFOONGLD","short_pith_number":"pith:KL4UMOZ2","canonical_record":{"source":{"id":"1508.06752","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.IM","submitted_at":"2015-08-27T08:36:47Z","cross_cats_sorted":[],"title_canon_sha256":"6a378697d5beb7b8aaecbc8fd7f2a7d6a60d4b0b881bab0c3e1c6a533d6d5380","abstract_canon_sha256":"2fbddb531c6b9d20594acad002de1e05394fa82245340afb268bfaebe6abf9dc"},"schema_version":"1.0"},"canonical_sha256":"52f9463b3af31ae784ffc6305739a658dcbd6eefdec4461d88391d73cb5f3c25","source":{"kind":"arxiv","id":"1508.06752","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1508.06752","created_at":"2026-05-18T01:34:41Z"},{"alias_kind":"arxiv_version","alias_value":"1508.06752v1","created_at":"2026-05-18T01:34:41Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1508.06752","created_at":"2026-05-18T01:34:41Z"},{"alias_kind":"pith_short_12","alias_value":"KL4UMOZ26MNO","created_at":"2026-05-18T12:29:29Z"},{"alias_kind":"pith_short_16","alias_value":"KL4UMOZ26MNOPBH7","created_at":"2026-05-18T12:29:29Z"},{"alias_kind":"pith_short_8","alias_value":"KL4UMOZ2","created_at":"2026-05-18T12:29:29Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2015:KL4UMOZ26MNOPBH7YYYFOONGLD","target":"record","payload":{"canonical_record":{"source":{"id":"1508.06752","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.IM","submitted_at":"2015-08-27T08:36:47Z","cross_cats_sorted":[],"title_canon_sha256":"6a378697d5beb7b8aaecbc8fd7f2a7d6a60d4b0b881bab0c3e1c6a533d6d5380","abstract_canon_sha256":"2fbddb531c6b9d20594acad002de1e05394fa82245340afb268bfaebe6abf9dc"},"schema_version":"1.0"},"canonical_sha256":"52f9463b3af31ae784ffc6305739a658dcbd6eefdec4461d88391d73cb5f3c25","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:34:41.155233Z","signature_b64":"etFWIlfEPptvL1Amk00qOYfHBL6BKejhYo8u7u3u9gUH7rd3rfafTnRCN+PerblT8bGTPHFNm4ukMW8MCEMdAA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"52f9463b3af31ae784ffc6305739a658dcbd6eefdec4461d88391d73cb5f3c25","last_reissued_at":"2026-05-18T01:34:41.154744Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:34:41.154744Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1508.06752","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":"2026-05-18T01:34:41Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"idlTvIKW0vGu0Oh0I7KJUqqnR5eM09mA6zXL2sQNqGdvF/M7WQPKI8Qn+WmEedB2qbqDuZe1r1qvYs4KnXGmBA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-27T16:54:31.035893Z"},"content_sha256":"0222f01d9135c469a06199857a1c62d0e28d3bf909d49744f95c7ad5dffd7e4d","schema_version":"1.0","event_id":"sha256:0222f01d9135c469a06199857a1c62d0e28d3bf909d49744f95c7ad5dffd7e4d"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2015:KL4UMOZ26MNOPBH7YYYFOONGLD","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Design of a prototype device to calibrate the Large Size Telescope camera of the Cherenkov Telescope Array","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.IM","authors_text":"A. Chatterjee, B. B. Singh, B. K. Nagesh, F. De Persio, F. Ferrarotto, L. Saha, M. Iori, P. Majumdar","submitted_at":"2015-08-27T08:36:47Z","abstract_excerpt":"The Cherenkov Telescope Array is a project that aims to exploring the highest energy region of electromagnetic spectrum. Two arrays, one for each hemisphere, will cover the full sky in a range from few tens of GeV to hundreds of TeV improving the sensitivity and angular resolution of the present operating arrays. A prototype of the Large Size Telescope (LST) for the study of gamma ray astronomy above some tens of GeV will be installed at the Canary Island of La Palma in 2016. The LST camera, made by an array of photomultipliers (PMTs), requires an accurate and systematic calibration over a wid"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1508.06752","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":""},"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":"2026-05-18T01:34:41Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Qp7c42xrapxVAdJ9sodL5ZmuRCr58NksUwkWR5MYBo/Q3hZODmOUZdFQdb9yT48j3I1HRafQk4H0YKNcgI5LAA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-27T16:54:31.036364Z"},"content_sha256":"63385f53510ebb7ab333d702397b8ec9bbb378b90e3d0a2d75338e20fe40cd8c","schema_version":"1.0","event_id":"sha256:63385f53510ebb7ab333d702397b8ec9bbb378b90e3d0a2d75338e20fe40cd8c"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/KL4UMOZ26MNOPBH7YYYFOONGLD/bundle.json","state_url":"https://pith.science/pith/KL4UMOZ26MNOPBH7YYYFOONGLD/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/KL4UMOZ26MNOPBH7YYYFOONGLD/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":"2026-05-27T16:54:31Z","links":{"resolver":"https://pith.science/pith/KL4UMOZ26MNOPBH7YYYFOONGLD","bundle":"https://pith.science/pith/KL4UMOZ26MNOPBH7YYYFOONGLD/bundle.json","state":"https://pith.science/pith/KL4UMOZ26MNOPBH7YYYFOONGLD/state.json","well_known_bundle":"https://pith.science/.well-known/pith/KL4UMOZ26MNOPBH7YYYFOONGLD/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2015:KL4UMOZ26MNOPBH7YYYFOONGLD","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":"2fbddb531c6b9d20594acad002de1e05394fa82245340afb268bfaebe6abf9dc","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.IM","submitted_at":"2015-08-27T08:36:47Z","title_canon_sha256":"6a378697d5beb7b8aaecbc8fd7f2a7d6a60d4b0b881bab0c3e1c6a533d6d5380"},"schema_version":"1.0","source":{"id":"1508.06752","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1508.06752","created_at":"2026-05-18T01:34:41Z"},{"alias_kind":"arxiv_version","alias_value":"1508.06752v1","created_at":"2026-05-18T01:34:41Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1508.06752","created_at":"2026-05-18T01:34:41Z"},{"alias_kind":"pith_short_12","alias_value":"KL4UMOZ26MNO","created_at":"2026-05-18T12:29:29Z"},{"alias_kind":"pith_short_16","alias_value":"KL4UMOZ26MNOPBH7","created_at":"2026-05-18T12:29:29Z"},{"alias_kind":"pith_short_8","alias_value":"KL4UMOZ2","created_at":"2026-05-18T12:29:29Z"}],"graph_snapshots":[{"event_id":"sha256:63385f53510ebb7ab333d702397b8ec9bbb378b90e3d0a2d75338e20fe40cd8c","target":"graph","created_at":"2026-05-18T01:34:41Z","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":"The Cherenkov Telescope Array is a project that aims to exploring the highest energy region of electromagnetic spectrum. Two arrays, one for each hemisphere, will cover the full sky in a range from few tens of GeV to hundreds of TeV improving the sensitivity and angular resolution of the present operating arrays. A prototype of the Large Size Telescope (LST) for the study of gamma ray astronomy above some tens of GeV will be installed at the Canary Island of La Palma in 2016. The LST camera, made by an array of photomultipliers (PMTs), requires an accurate and systematic calibration over a wid","authors_text":"A. Chatterjee, B. B. Singh, B. K. Nagesh, F. De Persio, F. Ferrarotto, L. Saha, M. Iori, P. Majumdar","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.IM","submitted_at":"2015-08-27T08:36:47Z","title":"Design of a prototype device to calibrate the Large Size Telescope camera of the Cherenkov Telescope Array"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1508.06752","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":"sha256:0222f01d9135c469a06199857a1c62d0e28d3bf909d49744f95c7ad5dffd7e4d","target":"record","created_at":"2026-05-18T01:34:41Z","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":"2fbddb531c6b9d20594acad002de1e05394fa82245340afb268bfaebe6abf9dc","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.IM","submitted_at":"2015-08-27T08:36:47Z","title_canon_sha256":"6a378697d5beb7b8aaecbc8fd7f2a7d6a60d4b0b881bab0c3e1c6a533d6d5380"},"schema_version":"1.0","source":{"id":"1508.06752","kind":"arxiv","version":1}},"canonical_sha256":"52f9463b3af31ae784ffc6305739a658dcbd6eefdec4461d88391d73cb5f3c25","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"52f9463b3af31ae784ffc6305739a658dcbd6eefdec4461d88391d73cb5f3c25","first_computed_at":"2026-05-18T01:34:41.154744Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:34:41.154744Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"etFWIlfEPptvL1Amk00qOYfHBL6BKejhYo8u7u3u9gUH7rd3rfafTnRCN+PerblT8bGTPHFNm4ukMW8MCEMdAA==","signature_status":"signed_v1","signed_at":"2026-05-18T01:34:41.155233Z","signed_message":"canonical_sha256_bytes"},"source_id":"1508.06752","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:0222f01d9135c469a06199857a1c62d0e28d3bf909d49744f95c7ad5dffd7e4d","sha256:63385f53510ebb7ab333d702397b8ec9bbb378b90e3d0a2d75338e20fe40cd8c"],"state_sha256":"0964fb875aa4b24a8be8d135b3f87581b9cdd1fd00e92951ae4efb1b22e9fcc6"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"UIhMiSALJShf45oJfzG1OjpvqlJZWtBjZfkBcbqFjahuJncV5QPkNd15GeZEsBbWIIdqVUxZhspRthe5SJ15Dg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-27T16:54:31.038649Z","bundle_sha256":"b14f5c9afb1947fec792bf6d11ca73db39b966e20511401d3cef772a4e5cff83"}}