{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2021:LL2CBPRK3XWB46OEVTHRIJTZWO","short_pith_number":"pith:LL2CBPRK","canonical_record":{"source":{"id":"2108.05140","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.IM","submitted_at":"2021-08-11T10:36:16Z","cross_cats_sorted":[],"title_canon_sha256":"aedd728f5f394d55006507b45edbee9eed890041e790392146f7dabea9903e01","abstract_canon_sha256":"e5ea13040b280879d6f8879fa582a9e898d8a56e12bf98ec6ef4a0db3f67572f"},"schema_version":"1.0"},"canonical_sha256":"5af420be2addec1e79c4accf142679b3aaebac725f5da0614c7ec83e577bae95","source":{"kind":"arxiv","id":"2108.05140","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2108.05140","created_at":"2026-07-05T03:07:30Z"},{"alias_kind":"arxiv_version","alias_value":"2108.05140v1","created_at":"2026-07-05T03:07:30Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2108.05140","created_at":"2026-07-05T03:07:30Z"},{"alias_kind":"pith_short_12","alias_value":"LL2CBPRK3XWB","created_at":"2026-07-05T03:07:30Z"},{"alias_kind":"pith_short_16","alias_value":"LL2CBPRK3XWB46OE","created_at":"2026-07-05T03:07:30Z"},{"alias_kind":"pith_short_8","alias_value":"LL2CBPRK","created_at":"2026-07-05T03:07:30Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2021:LL2CBPRK3XWB46OEVTHRIJTZWO","target":"record","payload":{"canonical_record":{"source":{"id":"2108.05140","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.IM","submitted_at":"2021-08-11T10:36:16Z","cross_cats_sorted":[],"title_canon_sha256":"aedd728f5f394d55006507b45edbee9eed890041e790392146f7dabea9903e01","abstract_canon_sha256":"e5ea13040b280879d6f8879fa582a9e898d8a56e12bf98ec6ef4a0db3f67572f"},"schema_version":"1.0"},"canonical_sha256":"5af420be2addec1e79c4accf142679b3aaebac725f5da0614c7ec83e577bae95","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T03:07:30.462824Z","signature_b64":"/BqlAuvHs8c2ULOfvUn2eHDx5p2HOCPWhfzxZavaIIMtKdgXfZ1VEajSuxtMX24MIubheDUtYbsGfaKYsVucDA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"5af420be2addec1e79c4accf142679b3aaebac725f5da0614c7ec83e577bae95","last_reissued_at":"2026-07-05T03:07:30.462269Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T03:07:30.462269Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2108.05140","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":"2026-07-05T03:07:30Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"E3r0fixtOyi/nxM81EqbxV11X17o6+T/L3a03pS/KfnjueQ+gOmqtSe9Q3F4a8/I7QaWV6RmWGUCdCDX9oACDg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-08T12:23:29.913705Z"},"content_sha256":"bc7e506aa29c283768eef1991d4dd43b1fba47916b96837421055a0dea5da961","schema_version":"1.0","event_id":"sha256:bc7e506aa29c283768eef1991d4dd43b1fba47916b96837421055a0dea5da961"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2021:LL2CBPRK3XWB46OEVTHRIJTZWO","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Cross-calibration and combined analysis of the CTA-LST prototype and the MAGIC telescopes","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.IM","authors_text":"A. Berti, A. Moralejo, D. Depaoli, D. Green, D. Morcuende, E. Medina, F. Di Pierro, G. Pirola, I. Vovk (for the CTA LST project, L. Heckmann, MAGIC Collaboration), M. H\\\"utten, M. Strzys, R. L\\'opez-Coto, T. Inada, Y. Ohtani, Y. Suda","submitted_at":"2021-08-11T10:36:16Z","abstract_excerpt":"The Cherenkov Telescope Array (CTA) will be the next generation gamma-ray observatory, which will consist of three kinds of telescopes of different sizes. Among those, the Large Size Telescope (LST) will be the most sensitive in the low energy range starting from 20 GeV. The prototype LST (LST-1) proposed for CTA was inaugurated in October 2018 in the northern hemisphere site, La Palma (Spain), and is currently in its commissioning phase. MAGIC is a system of two gamma-ray Cherenkov telescopes of the current generation, located approximately 100 m away from LST-1, that have been operating in s"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2108.05140","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/2108.05140/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":"2026-07-05T03:07:30Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"CXHhlpvZqXpC64ymGAcX7hEQKujL/Qn9gzAyMVS0bLOK4pQ5cevez/7/bKUTx8FUJ7zwnFRrqKIsHpLERuJ/Dw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-08T12:23:29.914091Z"},"content_sha256":"3c44fd3e71571b00d7bc208377ede74c0b6dbbc08080cd21c3496136ce6a17e6","schema_version":"1.0","event_id":"sha256:3c44fd3e71571b00d7bc208377ede74c0b6dbbc08080cd21c3496136ce6a17e6"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/LL2CBPRK3XWB46OEVTHRIJTZWO/bundle.json","state_url":"https://pith.science/pith/LL2CBPRK3XWB46OEVTHRIJTZWO/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/LL2CBPRK3XWB46OEVTHRIJTZWO/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":"2026-07-08T12:23:29Z","links":{"resolver":"https://pith.science/pith/LL2CBPRK3XWB46OEVTHRIJTZWO","bundle":"https://pith.science/pith/LL2CBPRK3XWB46OEVTHRIJTZWO/bundle.json","state":"https://pith.science/pith/LL2CBPRK3XWB46OEVTHRIJTZWO/state.json","well_known_bundle":"https://pith.science/.well-known/pith/LL2CBPRK3XWB46OEVTHRIJTZWO/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2021:LL2CBPRK3XWB46OEVTHRIJTZWO","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":"e5ea13040b280879d6f8879fa582a9e898d8a56e12bf98ec6ef4a0db3f67572f","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.IM","submitted_at":"2021-08-11T10:36:16Z","title_canon_sha256":"aedd728f5f394d55006507b45edbee9eed890041e790392146f7dabea9903e01"},"schema_version":"1.0","source":{"id":"2108.05140","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2108.05140","created_at":"2026-07-05T03:07:30Z"},{"alias_kind":"arxiv_version","alias_value":"2108.05140v1","created_at":"2026-07-05T03:07:30Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2108.05140","created_at":"2026-07-05T03:07:30Z"},{"alias_kind":"pith_short_12","alias_value":"LL2CBPRK3XWB","created_at":"2026-07-05T03:07:30Z"},{"alias_kind":"pith_short_16","alias_value":"LL2CBPRK3XWB46OE","created_at":"2026-07-05T03:07:30Z"},{"alias_kind":"pith_short_8","alias_value":"LL2CBPRK","created_at":"2026-07-05T03:07:30Z"}],"graph_snapshots":[{"event_id":"sha256:3c44fd3e71571b00d7bc208377ede74c0b6dbbc08080cd21c3496136ce6a17e6","target":"graph","created_at":"2026-07-05T03:07:30Z","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/2108.05140/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"The Cherenkov Telescope Array (CTA) will be the next generation gamma-ray observatory, which will consist of three kinds of telescopes of different sizes. Among those, the Large Size Telescope (LST) will be the most sensitive in the low energy range starting from 20 GeV. The prototype LST (LST-1) proposed for CTA was inaugurated in October 2018 in the northern hemisphere site, La Palma (Spain), and is currently in its commissioning phase. MAGIC is a system of two gamma-ray Cherenkov telescopes of the current generation, located approximately 100 m away from LST-1, that have been operating in s","authors_text":"A. Berti, A. Moralejo, D. Depaoli, D. Green, D. Morcuende, E. Medina, F. Di Pierro, G. Pirola, I. Vovk (for the CTA LST project, L. Heckmann, MAGIC Collaboration), M. H\\\"utten, M. Strzys, R. L\\'opez-Coto, T. Inada, Y. Ohtani, Y. Suda","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.IM","submitted_at":"2021-08-11T10:36:16Z","title":"Cross-calibration and combined analysis of the CTA-LST prototype and the MAGIC telescopes"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2108.05140","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:bc7e506aa29c283768eef1991d4dd43b1fba47916b96837421055a0dea5da961","target":"record","created_at":"2026-07-05T03:07:30Z","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":"e5ea13040b280879d6f8879fa582a9e898d8a56e12bf98ec6ef4a0db3f67572f","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.IM","submitted_at":"2021-08-11T10:36:16Z","title_canon_sha256":"aedd728f5f394d55006507b45edbee9eed890041e790392146f7dabea9903e01"},"schema_version":"1.0","source":{"id":"2108.05140","kind":"arxiv","version":1}},"canonical_sha256":"5af420be2addec1e79c4accf142679b3aaebac725f5da0614c7ec83e577bae95","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"5af420be2addec1e79c4accf142679b3aaebac725f5da0614c7ec83e577bae95","first_computed_at":"2026-07-05T03:07:30.462269Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T03:07:30.462269Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"/BqlAuvHs8c2ULOfvUn2eHDx5p2HOCPWhfzxZavaIIMtKdgXfZ1VEajSuxtMX24MIubheDUtYbsGfaKYsVucDA==","signature_status":"signed_v1","signed_at":"2026-07-05T03:07:30.462824Z","signed_message":"canonical_sha256_bytes"},"source_id":"2108.05140","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:bc7e506aa29c283768eef1991d4dd43b1fba47916b96837421055a0dea5da961","sha256:3c44fd3e71571b00d7bc208377ede74c0b6dbbc08080cd21c3496136ce6a17e6"],"state_sha256":"6492d973e0879409f1fdec2c32d7d253c01fd08e018f3450dd3d4649a16f226b"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"xTFBB1JrJBn3GyhTKvvh4qYb2XxGnjkS03PD5k35crqnaLZ/BSgi2uR0NPskxu9ftHFUlcv+V795N2AhqICNCA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-07-08T12:23:29.916224Z","bundle_sha256":"9f1b03088b9847333edb221e97ccd63939c059ede6be36efc478dd2ea36d1ff3"}}