{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2017:ZGRKX7AOBJT4KB2E2FJZOCM6BI","short_pith_number":"pith:ZGRKX7AO","canonical_record":{"source":{"id":"1705.07805","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2017-05-22T15:22:05Z","cross_cats_sorted":["astro-ph.IM"],"title_canon_sha256":"aafb0ea0aae639ee2f8fae0a519d54f6b2cfb35b5e64194e8ec7abe3ca40fa40","abstract_canon_sha256":"2f72b28d6edd7ae60569e1d92004a354f991b11c4933cc22061df537859134d5"},"schema_version":"1.0"},"canonical_sha256":"c9a2abfc0e0a67c50744d15397099e0a00d9625dc1a1a1f9c5fb7ec81641a3b1","source":{"kind":"arxiv","id":"1705.07805","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1705.07805","created_at":"2026-05-18T00:44:04Z"},{"alias_kind":"arxiv_version","alias_value":"1705.07805v1","created_at":"2026-05-18T00:44:04Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1705.07805","created_at":"2026-05-18T00:44:04Z"},{"alias_kind":"pith_short_12","alias_value":"ZGRKX7AOBJT4","created_at":"2026-05-18T12:31:59Z"},{"alias_kind":"pith_short_16","alias_value":"ZGRKX7AOBJT4KB2E","created_at":"2026-05-18T12:31:59Z"},{"alias_kind":"pith_short_8","alias_value":"ZGRKX7AO","created_at":"2026-05-18T12:31:59Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2017:ZGRKX7AOBJT4KB2E2FJZOCM6BI","target":"record","payload":{"canonical_record":{"source":{"id":"1705.07805","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2017-05-22T15:22:05Z","cross_cats_sorted":["astro-ph.IM"],"title_canon_sha256":"aafb0ea0aae639ee2f8fae0a519d54f6b2cfb35b5e64194e8ec7abe3ca40fa40","abstract_canon_sha256":"2f72b28d6edd7ae60569e1d92004a354f991b11c4933cc22061df537859134d5"},"schema_version":"1.0"},"canonical_sha256":"c9a2abfc0e0a67c50744d15397099e0a00d9625dc1a1a1f9c5fb7ec81641a3b1","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:44:04.517633Z","signature_b64":"uqPRTO9Yr10IYOtvsF3VnHnWb+bwZcd9eVArEppEPS1vebPVztK6M+MUL5GBKdaFofot2SooWrs/XtVmQqq6Cg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"c9a2abfc0e0a67c50744d15397099e0a00d9625dc1a1a1f9c5fb7ec81641a3b1","last_reissued_at":"2026-05-18T00:44:04.517077Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:44:04.517077Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1705.07805","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":"2026-05-18T00:44:04Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"LM9XYbcLla2ob9WHV0oax+zOu1bkfLg6EspglQ+zscO7OI3w37SAU07YdligSFcjqgP8uOL2MSNOQHcgd5dPDA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-05T02:25:18.484191Z"},"content_sha256":"df01bc48c89409c4e5dc9e750c8e738cba3d46b2104915e35397e2aaa562b642","schema_version":"1.0","event_id":"sha256:df01bc48c89409c4e5dc9e750c8e738cba3d46b2104915e35397e2aaa562b642"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2017:ZGRKX7AOBJT4KB2E2FJZOCM6BI","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Cherenkov Telescope Array Status Report","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.IM"],"primary_cat":"astro-ph.HE","authors_text":"S. Mangano","submitted_at":"2017-05-22T15:22:05Z","abstract_excerpt":"The Cherenkov Telescope Array (CTA) will be the next generation of ground based gamma-ray telescopes allowing us to study very high energy phenomena in the Universe. CTA aims to gain about a factor of ten in sensitivity compared to current experiments, extending the accessible gamma-ray energy range from a few tens of GeV to some hundreds of TeV. This increased gamma-ray source sensitivity, as well as the expected enhanced energy and spatial resolution, will allow exciting new insights in some key science topics. Additionally, CTA will provide a full sky-coverage by featuring the array located"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1705.07805","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":"2026-05-18T00:44:04Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"8bJ60WD0gex9OSYGBJIFALoR2EXhZ46m1bjZA1wVkPrkptbnRVfqkBp47OTUZb5Q74YniljrrxvW3UkUi0G9DQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-05T02:25:18.484562Z"},"content_sha256":"b473ba3de3eb9c816d13081baee270da48bc276e2704733d17128739c8e888fd","schema_version":"1.0","event_id":"sha256:b473ba3de3eb9c816d13081baee270da48bc276e2704733d17128739c8e888fd"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/ZGRKX7AOBJT4KB2E2FJZOCM6BI/bundle.json","state_url":"https://pith.science/pith/ZGRKX7AOBJT4KB2E2FJZOCM6BI/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/ZGRKX7AOBJT4KB2E2FJZOCM6BI/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":"2026-06-05T02:25:18Z","links":{"resolver":"https://pith.science/pith/ZGRKX7AOBJT4KB2E2FJZOCM6BI","bundle":"https://pith.science/pith/ZGRKX7AOBJT4KB2E2FJZOCM6BI/bundle.json","state":"https://pith.science/pith/ZGRKX7AOBJT4KB2E2FJZOCM6BI/state.json","well_known_bundle":"https://pith.science/.well-known/pith/ZGRKX7AOBJT4KB2E2FJZOCM6BI/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2017:ZGRKX7AOBJT4KB2E2FJZOCM6BI","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":"2f72b28d6edd7ae60569e1d92004a354f991b11c4933cc22061df537859134d5","cross_cats_sorted":["astro-ph.IM"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2017-05-22T15:22:05Z","title_canon_sha256":"aafb0ea0aae639ee2f8fae0a519d54f6b2cfb35b5e64194e8ec7abe3ca40fa40"},"schema_version":"1.0","source":{"id":"1705.07805","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1705.07805","created_at":"2026-05-18T00:44:04Z"},{"alias_kind":"arxiv_version","alias_value":"1705.07805v1","created_at":"2026-05-18T00:44:04Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1705.07805","created_at":"2026-05-18T00:44:04Z"},{"alias_kind":"pith_short_12","alias_value":"ZGRKX7AOBJT4","created_at":"2026-05-18T12:31:59Z"},{"alias_kind":"pith_short_16","alias_value":"ZGRKX7AOBJT4KB2E","created_at":"2026-05-18T12:31:59Z"},{"alias_kind":"pith_short_8","alias_value":"ZGRKX7AO","created_at":"2026-05-18T12:31:59Z"}],"graph_snapshots":[{"event_id":"sha256:b473ba3de3eb9c816d13081baee270da48bc276e2704733d17128739c8e888fd","target":"graph","created_at":"2026-05-18T00:44:04Z","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 (CTA) will be the next generation of ground based gamma-ray telescopes allowing us to study very high energy phenomena in the Universe. CTA aims to gain about a factor of ten in sensitivity compared to current experiments, extending the accessible gamma-ray energy range from a few tens of GeV to some hundreds of TeV. This increased gamma-ray source sensitivity, as well as the expected enhanced energy and spatial resolution, will allow exciting new insights in some key science topics. Additionally, CTA will provide a full sky-coverage by featuring the array located","authors_text":"S. Mangano","cross_cats":["astro-ph.IM"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2017-05-22T15:22:05Z","title":"Cherenkov Telescope Array Status Report"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1705.07805","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:df01bc48c89409c4e5dc9e750c8e738cba3d46b2104915e35397e2aaa562b642","target":"record","created_at":"2026-05-18T00:44:04Z","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":"2f72b28d6edd7ae60569e1d92004a354f991b11c4933cc22061df537859134d5","cross_cats_sorted":["astro-ph.IM"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2017-05-22T15:22:05Z","title_canon_sha256":"aafb0ea0aae639ee2f8fae0a519d54f6b2cfb35b5e64194e8ec7abe3ca40fa40"},"schema_version":"1.0","source":{"id":"1705.07805","kind":"arxiv","version":1}},"canonical_sha256":"c9a2abfc0e0a67c50744d15397099e0a00d9625dc1a1a1f9c5fb7ec81641a3b1","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"c9a2abfc0e0a67c50744d15397099e0a00d9625dc1a1a1f9c5fb7ec81641a3b1","first_computed_at":"2026-05-18T00:44:04.517077Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:44:04.517077Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"uqPRTO9Yr10IYOtvsF3VnHnWb+bwZcd9eVArEppEPS1vebPVztK6M+MUL5GBKdaFofot2SooWrs/XtVmQqq6Cg==","signature_status":"signed_v1","signed_at":"2026-05-18T00:44:04.517633Z","signed_message":"canonical_sha256_bytes"},"source_id":"1705.07805","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:df01bc48c89409c4e5dc9e750c8e738cba3d46b2104915e35397e2aaa562b642","sha256:b473ba3de3eb9c816d13081baee270da48bc276e2704733d17128739c8e888fd"],"state_sha256":"a390aad8db7cbf3bab30c75b85e45d27b2ce8ea3b201cde7c509c9b39a4788b4"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"8Wd1ZS1ke2a1ECERL3IFLSFDmp1xpf/GuPT2ruHj0g7ygGDt0YiOQrfvaYxhr8hCQ519XiDCrtlvuXoklIEnBw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-05T02:25:18.486501Z","bundle_sha256":"51cb48005ed0c3a45988dbc933bd061549d2c007564056f58694d9cc42ceb3a4"}}