{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2013:P44XJI6TYP56V6ZB6BN4KPESLD","short_pith_number":"pith:P44XJI6T","canonical_record":{"source":{"id":"1307.4189","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.IM","submitted_at":"2013-07-16T08:07:10Z","cross_cats_sorted":[],"title_canon_sha256":"25ace37e93c71df833df776259217fdb76fe4d2baaf05af9116bef4224903aff","abstract_canon_sha256":"1530dd0f63ab6a83d662d131d020a07ce4c7364017eb5502721c99d0efaa182c"},"schema_version":"1.0"},"canonical_sha256":"7f3974a3d3c3fbeafb21f05bc53c9258dd007dd2bde24900b23fff84eb8d8eb9","source":{"kind":"arxiv","id":"1307.4189","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1307.4189","created_at":"2026-07-04T23:55:27Z"},{"alias_kind":"arxiv_version","alias_value":"1307.4189v1","created_at":"2026-07-04T23:55:27Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1307.4189","created_at":"2026-07-04T23:55:27Z"},{"alias_kind":"pith_short_12","alias_value":"P44XJI6TYP56","created_at":"2026-07-04T23:55:27Z"},{"alias_kind":"pith_short_16","alias_value":"P44XJI6TYP56V6ZB","created_at":"2026-07-04T23:55:27Z"},{"alias_kind":"pith_short_8","alias_value":"P44XJI6T","created_at":"2026-07-04T23:55:27Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2013:P44XJI6TYP56V6ZB6BN4KPESLD","target":"record","payload":{"canonical_record":{"source":{"id":"1307.4189","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.IM","submitted_at":"2013-07-16T08:07:10Z","cross_cats_sorted":[],"title_canon_sha256":"25ace37e93c71df833df776259217fdb76fe4d2baaf05af9116bef4224903aff","abstract_canon_sha256":"1530dd0f63ab6a83d662d131d020a07ce4c7364017eb5502721c99d0efaa182c"},"schema_version":"1.0"},"canonical_sha256":"7f3974a3d3c3fbeafb21f05bc53c9258dd007dd2bde24900b23fff84eb8d8eb9","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-04T23:55:27.240325Z","signature_b64":"aygIbrqLzQ5zHlWX4eohrIFo2Fij4JtDoAgJPupi02dKFF5Nw9fkS1MPY/Yr8YfBTSLF4Cx1WJupm+5NdD8TBQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"7f3974a3d3c3fbeafb21f05bc53c9258dd007dd2bde24900b23fff84eb8d8eb9","last_reissued_at":"2026-07-04T23:55:27.239915Z","signature_status":"signed_v1","first_computed_at":"2026-07-04T23:55:27.239915Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1307.4189","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":"2026-07-04T23:55:27Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"HRaYCqdyzIC2IhBi7McafxDbNAmTcd0tiki1y/Cn9/8L43Pg3mCRaQXdTn/YEmY3hiYw3vtoCUS5HMuZJ5isAg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-07T09:02:41.751494Z"},"content_sha256":"cb4830eeeefda015aa7b559eebcb0b2e3d2ef2c8f19ae55650804e48557cd13b","schema_version":"1.0","event_id":"sha256:cb4830eeeefda015aa7b559eebcb0b2e3d2ef2c8f19ae55650804e48557cd13b"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2013:P44XJI6TYP56V6ZB6BN4KPESLD","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Single-Mirror Small-Size 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":"Jacek Niemiec, Jaromir Ludwin, Jerzy Micha{\\l}owski, Marek Stodulski, Micha{\\l} Dyrda, Pawe{\\l} Zi\\'o{\\l}kowski, Pawe{\\l} \\.Zychowski (for the CTA Consortium), Wojciech Kocha\\'nski","submitted_at":"2013-07-16T08:07:10Z","abstract_excerpt":"A single-mirror small-size (1M-SST) Davies-Cotton telescope has been proposed for the southern observatory of the Cherenkov Telescope Array (CTA) by a consortium of scientific institutions from Poland, Switzerland, and Germany. The telescope has a 4 m diameter reflector and will be equipped with a fully digital camera based on Geiger avalanche photodiodes (APDs). Such a design is particularly interesting for CTA because it represents a very simple, reliable, and cheap solution for a SST. Here we present the design and the characteristics of the mechanical structure of the 1M-SST telescope and "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1307.4189","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/1307.4189/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":"2026-07-04T23:55:27Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"JW7I3RGG2lG/JO34eryUZ6Xhj+ipzZBCD7iBS+IyU8PUN3shrpRu4UzLcDdxk7ovjhvh6dbrwhbynBSPOG/vAA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-07T09:02:41.751876Z"},"content_sha256":"7f8abe654179ba0fe7cf3a5c0357201bacb464811f1b34614255a49a92b34ffa","schema_version":"1.0","event_id":"sha256:7f8abe654179ba0fe7cf3a5c0357201bacb464811f1b34614255a49a92b34ffa"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/P44XJI6TYP56V6ZB6BN4KPESLD/bundle.json","state_url":"https://pith.science/pith/P44XJI6TYP56V6ZB6BN4KPESLD/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/P44XJI6TYP56V6ZB6BN4KPESLD/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":"2026-07-07T09:02:41Z","links":{"resolver":"https://pith.science/pith/P44XJI6TYP56V6ZB6BN4KPESLD","bundle":"https://pith.science/pith/P44XJI6TYP56V6ZB6BN4KPESLD/bundle.json","state":"https://pith.science/pith/P44XJI6TYP56V6ZB6BN4KPESLD/state.json","well_known_bundle":"https://pith.science/.well-known/pith/P44XJI6TYP56V6ZB6BN4KPESLD/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2013:P44XJI6TYP56V6ZB6BN4KPESLD","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":"1530dd0f63ab6a83d662d131d020a07ce4c7364017eb5502721c99d0efaa182c","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.IM","submitted_at":"2013-07-16T08:07:10Z","title_canon_sha256":"25ace37e93c71df833df776259217fdb76fe4d2baaf05af9116bef4224903aff"},"schema_version":"1.0","source":{"id":"1307.4189","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1307.4189","created_at":"2026-07-04T23:55:27Z"},{"alias_kind":"arxiv_version","alias_value":"1307.4189v1","created_at":"2026-07-04T23:55:27Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1307.4189","created_at":"2026-07-04T23:55:27Z"},{"alias_kind":"pith_short_12","alias_value":"P44XJI6TYP56","created_at":"2026-07-04T23:55:27Z"},{"alias_kind":"pith_short_16","alias_value":"P44XJI6TYP56V6ZB","created_at":"2026-07-04T23:55:27Z"},{"alias_kind":"pith_short_8","alias_value":"P44XJI6T","created_at":"2026-07-04T23:55:27Z"}],"graph_snapshots":[{"event_id":"sha256:7f8abe654179ba0fe7cf3a5c0357201bacb464811f1b34614255a49a92b34ffa","target":"graph","created_at":"2026-07-04T23:55:27Z","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/1307.4189/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"A single-mirror small-size (1M-SST) Davies-Cotton telescope has been proposed for the southern observatory of the Cherenkov Telescope Array (CTA) by a consortium of scientific institutions from Poland, Switzerland, and Germany. The telescope has a 4 m diameter reflector and will be equipped with a fully digital camera based on Geiger avalanche photodiodes (APDs). Such a design is particularly interesting for CTA because it represents a very simple, reliable, and cheap solution for a SST. Here we present the design and the characteristics of the mechanical structure of the 1M-SST telescope and ","authors_text":"Jacek Niemiec, Jaromir Ludwin, Jerzy Micha{\\l}owski, Marek Stodulski, Micha{\\l} Dyrda, Pawe{\\l} Zi\\'o{\\l}kowski, Pawe{\\l} \\.Zychowski (for the CTA Consortium), Wojciech Kocha\\'nski","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.IM","submitted_at":"2013-07-16T08:07:10Z","title":"Single-Mirror Small-Size Telescope structure for the Cherenkov Telescope Array"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1307.4189","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:cb4830eeeefda015aa7b559eebcb0b2e3d2ef2c8f19ae55650804e48557cd13b","target":"record","created_at":"2026-07-04T23:55:27Z","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":"1530dd0f63ab6a83d662d131d020a07ce4c7364017eb5502721c99d0efaa182c","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.IM","submitted_at":"2013-07-16T08:07:10Z","title_canon_sha256":"25ace37e93c71df833df776259217fdb76fe4d2baaf05af9116bef4224903aff"},"schema_version":"1.0","source":{"id":"1307.4189","kind":"arxiv","version":1}},"canonical_sha256":"7f3974a3d3c3fbeafb21f05bc53c9258dd007dd2bde24900b23fff84eb8d8eb9","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"7f3974a3d3c3fbeafb21f05bc53c9258dd007dd2bde24900b23fff84eb8d8eb9","first_computed_at":"2026-07-04T23:55:27.239915Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-04T23:55:27.239915Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"aygIbrqLzQ5zHlWX4eohrIFo2Fij4JtDoAgJPupi02dKFF5Nw9fkS1MPY/Yr8YfBTSLF4Cx1WJupm+5NdD8TBQ==","signature_status":"signed_v1","signed_at":"2026-07-04T23:55:27.240325Z","signed_message":"canonical_sha256_bytes"},"source_id":"1307.4189","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:cb4830eeeefda015aa7b559eebcb0b2e3d2ef2c8f19ae55650804e48557cd13b","sha256:7f8abe654179ba0fe7cf3a5c0357201bacb464811f1b34614255a49a92b34ffa"],"state_sha256":"f6adb1cc99ed99e5607cb6df97b3bf8e65ee57b4a4ab93d95e4345d1c7b9cd7a"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"A1xwijiLN0B5aq3XC3L9rw3q00KCKLgRNDDA9jeLEfF9B/T/qZoaCwi1X4aSsswbjweBUiy5slrChtY3tsA2AQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-07-07T09:02:41.753886Z","bundle_sha256":"16b6550fc6b7f5ea6987d270c5494e0d665078d82cb99724e85abce1236791dc"}}