{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2017:XKNBTWRKC7XVYAMQVZVQ7P7MFJ","short_pith_number":"pith:XKNBTWRK","canonical_record":{"source":{"id":"1709.03954","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.IM","submitted_at":"2017-09-12T17:04:18Z","cross_cats_sorted":[],"title_canon_sha256":"e9c27201b310a2127e0b38e025b4b197a9e2c96898c0858598bf0ad1fa94f8d5","abstract_canon_sha256":"25cc640cb4633065652b19412d7053e48784033a9bbb332f4a118269119baaaf"},"schema_version":"1.0"},"canonical_sha256":"ba9a19da2a17ef5c0190ae6b0fbfec2a6a703fdf57abbbec2c437173e7e9c7ab","source":{"kind":"arxiv","id":"1709.03954","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1709.03954","created_at":"2026-05-18T00:25:33Z"},{"alias_kind":"arxiv_version","alias_value":"1709.03954v1","created_at":"2026-05-18T00:25:33Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1709.03954","created_at":"2026-05-18T00:25:33Z"},{"alias_kind":"pith_short_12","alias_value":"XKNBTWRKC7XV","created_at":"2026-05-18T12:31:56Z"},{"alias_kind":"pith_short_16","alias_value":"XKNBTWRKC7XVYAMQ","created_at":"2026-05-18T12:31:56Z"},{"alias_kind":"pith_short_8","alias_value":"XKNBTWRK","created_at":"2026-05-18T12:31:56Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2017:XKNBTWRKC7XVYAMQVZVQ7P7MFJ","target":"record","payload":{"canonical_record":{"source":{"id":"1709.03954","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.IM","submitted_at":"2017-09-12T17:04:18Z","cross_cats_sorted":[],"title_canon_sha256":"e9c27201b310a2127e0b38e025b4b197a9e2c96898c0858598bf0ad1fa94f8d5","abstract_canon_sha256":"25cc640cb4633065652b19412d7053e48784033a9bbb332f4a118269119baaaf"},"schema_version":"1.0"},"canonical_sha256":"ba9a19da2a17ef5c0190ae6b0fbfec2a6a703fdf57abbbec2c437173e7e9c7ab","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:25:33.922494Z","signature_b64":"EEClnh58RcVN6usPizvWjPDVpLEoEbjSb5C430VsZ1j2wk0X7lpWpBsik5t0F5qvHwZd0677UBUdjquNZOLDBQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"ba9a19da2a17ef5c0190ae6b0fbfec2a6a703fdf57abbbec2c437173e7e9c7ab","last_reissued_at":"2026-05-18T00:25:33.921691Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:25:33.921691Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1709.03954","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":"2026-05-18T00:25:33Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"CNknQ6q9qT49Me3RZ82iAVtcwnazQMbvJ/Orm4BeReTXi7B64QdMnPNIcDBVeFf+NMSFHNYKKzsPtBjRQR8/AQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-26T14:00:21.285698Z"},"content_sha256":"a213938cc01a8f25c493cca13435d6816860f659f8616d2953e950a263c81617","schema_version":"1.0","event_id":"sha256:a213938cc01a8f25c493cca13435d6816860f659f8616d2953e950a263c81617"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2017:XKNBTWRKC7XVYAMQVZVQ7P7MFJ","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Towards final characterisation and performance of the GCT prototype telescope structure for the Cherenkov Telescope Array","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.IM","authors_text":"Abdel Abchiche (for the CTA GCT Project), C\\'edric Perennes, Fatima De Frondat, Gilles Buchholtz, Gilles Fasola, H\\'el\\`ene Sol, Isabelle J\\'egouzo, Jean-Laurent Dournaux, Jean-Michel Huet, Jean-Philippe Amans, Johann Gironnet, Lucie Dangeon, Oriane Le Blanc, Philippe Laporte, Vincent Hocd\\'e","submitted_at":"2017-09-12T17:04:18Z","abstract_excerpt":"The Gamma-ray Cherenkov Telescope (GCT) is an innovative dual-mirror solution proposed for the Small Size Telescopes of the future Cherenkov Telescope Array (CTA), capable of imaging the showers induced by cosmic gamma-rays with energies from a few TeV up to 300 TeV. The Schwarzschild Couder design on which the telescope optical design is based makes possible the construction of a fast telescope (primary mirror diameter 4 m, focal length 2.3 m) with a plate scale well matched to compact photosensors, such as multi anode or silicon photomultipliers (MAPMs and SiPMs, respectively) for the camera"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1709.03954","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":"2026-05-18T00:25:33Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"iXY9V6+tasi4Si4I3fS5WMWGB7QFAafH5DgTXYH8i+k/0TAtKqODfBl9xG0xS2POv17pABOTEkfn2Cl4/7heAg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-26T14:00:21.286392Z"},"content_sha256":"e6bf77110e707a03179384dbb0c4658b1f0072a6849a3425971c671a2bf23b82","schema_version":"1.0","event_id":"sha256:e6bf77110e707a03179384dbb0c4658b1f0072a6849a3425971c671a2bf23b82"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/XKNBTWRKC7XVYAMQVZVQ7P7MFJ/bundle.json","state_url":"https://pith.science/pith/XKNBTWRKC7XVYAMQVZVQ7P7MFJ/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/XKNBTWRKC7XVYAMQVZVQ7P7MFJ/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":"2026-05-26T14:00:21Z","links":{"resolver":"https://pith.science/pith/XKNBTWRKC7XVYAMQVZVQ7P7MFJ","bundle":"https://pith.science/pith/XKNBTWRKC7XVYAMQVZVQ7P7MFJ/bundle.json","state":"https://pith.science/pith/XKNBTWRKC7XVYAMQVZVQ7P7MFJ/state.json","well_known_bundle":"https://pith.science/.well-known/pith/XKNBTWRKC7XVYAMQVZVQ7P7MFJ/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2017:XKNBTWRKC7XVYAMQVZVQ7P7MFJ","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":"25cc640cb4633065652b19412d7053e48784033a9bbb332f4a118269119baaaf","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.IM","submitted_at":"2017-09-12T17:04:18Z","title_canon_sha256":"e9c27201b310a2127e0b38e025b4b197a9e2c96898c0858598bf0ad1fa94f8d5"},"schema_version":"1.0","source":{"id":"1709.03954","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1709.03954","created_at":"2026-05-18T00:25:33Z"},{"alias_kind":"arxiv_version","alias_value":"1709.03954v1","created_at":"2026-05-18T00:25:33Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1709.03954","created_at":"2026-05-18T00:25:33Z"},{"alias_kind":"pith_short_12","alias_value":"XKNBTWRKC7XV","created_at":"2026-05-18T12:31:56Z"},{"alias_kind":"pith_short_16","alias_value":"XKNBTWRKC7XVYAMQ","created_at":"2026-05-18T12:31:56Z"},{"alias_kind":"pith_short_8","alias_value":"XKNBTWRK","created_at":"2026-05-18T12:31:56Z"}],"graph_snapshots":[{"event_id":"sha256:e6bf77110e707a03179384dbb0c4658b1f0072a6849a3425971c671a2bf23b82","target":"graph","created_at":"2026-05-18T00:25:33Z","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 Gamma-ray Cherenkov Telescope (GCT) is an innovative dual-mirror solution proposed for the Small Size Telescopes of the future Cherenkov Telescope Array (CTA), capable of imaging the showers induced by cosmic gamma-rays with energies from a few TeV up to 300 TeV. The Schwarzschild Couder design on which the telescope optical design is based makes possible the construction of a fast telescope (primary mirror diameter 4 m, focal length 2.3 m) with a plate scale well matched to compact photosensors, such as multi anode or silicon photomultipliers (MAPMs and SiPMs, respectively) for the camera","authors_text":"Abdel Abchiche (for the CTA GCT Project), C\\'edric Perennes, Fatima De Frondat, Gilles Buchholtz, Gilles Fasola, H\\'el\\`ene Sol, Isabelle J\\'egouzo, Jean-Laurent Dournaux, Jean-Michel Huet, Jean-Philippe Amans, Johann Gironnet, Lucie Dangeon, Oriane Le Blanc, Philippe Laporte, Vincent Hocd\\'e","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.IM","submitted_at":"2017-09-12T17:04:18Z","title":"Towards final characterisation and performance of the GCT prototype telescope structure for the Cherenkov Telescope Array"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1709.03954","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:a213938cc01a8f25c493cca13435d6816860f659f8616d2953e950a263c81617","target":"record","created_at":"2026-05-18T00:25:33Z","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":"25cc640cb4633065652b19412d7053e48784033a9bbb332f4a118269119baaaf","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.IM","submitted_at":"2017-09-12T17:04:18Z","title_canon_sha256":"e9c27201b310a2127e0b38e025b4b197a9e2c96898c0858598bf0ad1fa94f8d5"},"schema_version":"1.0","source":{"id":"1709.03954","kind":"arxiv","version":1}},"canonical_sha256":"ba9a19da2a17ef5c0190ae6b0fbfec2a6a703fdf57abbbec2c437173e7e9c7ab","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"ba9a19da2a17ef5c0190ae6b0fbfec2a6a703fdf57abbbec2c437173e7e9c7ab","first_computed_at":"2026-05-18T00:25:33.921691Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:25:33.921691Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"EEClnh58RcVN6usPizvWjPDVpLEoEbjSb5C430VsZ1j2wk0X7lpWpBsik5t0F5qvHwZd0677UBUdjquNZOLDBQ==","signature_status":"signed_v1","signed_at":"2026-05-18T00:25:33.922494Z","signed_message":"canonical_sha256_bytes"},"source_id":"1709.03954","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:a213938cc01a8f25c493cca13435d6816860f659f8616d2953e950a263c81617","sha256:e6bf77110e707a03179384dbb0c4658b1f0072a6849a3425971c671a2bf23b82"],"state_sha256":"8bf58f5065a67f7bdea330befe88c7bd3f4d7c5225d174330f4de5c4526e1c7d"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"xRW714XVSCtGo3foZq6vXc41gbzUAP8bp7loPzjh6uQl5dpAaszQf8gVwRhPGr9P1WbmavF9tIT1KnCRI7l+Cg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-26T14:00:21.289798Z","bundle_sha256":"334d56ad4fc6ce4ee1a182325f38941b895043261856bc87abe0ecb816ba3ef8"}}