{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2014:5WAECSYKUME6J3JPS2L2QHXIO2","short_pith_number":"pith:5WAECSYK","canonical_record":{"source":{"id":"1410.8526","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.ins-det","submitted_at":"2014-10-30T17:02:31Z","cross_cats_sorted":["hep-ex"],"title_canon_sha256":"4d93d8119a115355656a76d9801509fd20d49695991680712644fbf8d2cdfa82","abstract_canon_sha256":"a1e05763474d38bd1e3e03f153588722c1d7afcfe5614975af843e8653b7c3bc"},"schema_version":"1.0"},"canonical_sha256":"ed80414b0aa309e4ed2f9697a81ee8769fc69e01da8a07e5af6ce0454b399f01","source":{"kind":"arxiv","id":"1410.8526","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1410.8526","created_at":"2026-05-18T02:38:59Z"},{"alias_kind":"arxiv_version","alias_value":"1410.8526v1","created_at":"2026-05-18T02:38:59Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1410.8526","created_at":"2026-05-18T02:38:59Z"},{"alias_kind":"pith_short_12","alias_value":"5WAECSYKUME6","created_at":"2026-05-18T12:28:16Z"},{"alias_kind":"pith_short_16","alias_value":"5WAECSYKUME6J3JP","created_at":"2026-05-18T12:28:16Z"},{"alias_kind":"pith_short_8","alias_value":"5WAECSYK","created_at":"2026-05-18T12:28:16Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2014:5WAECSYKUME6J3JPS2L2QHXIO2","target":"record","payload":{"canonical_record":{"source":{"id":"1410.8526","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.ins-det","submitted_at":"2014-10-30T17:02:31Z","cross_cats_sorted":["hep-ex"],"title_canon_sha256":"4d93d8119a115355656a76d9801509fd20d49695991680712644fbf8d2cdfa82","abstract_canon_sha256":"a1e05763474d38bd1e3e03f153588722c1d7afcfe5614975af843e8653b7c3bc"},"schema_version":"1.0"},"canonical_sha256":"ed80414b0aa309e4ed2f9697a81ee8769fc69e01da8a07e5af6ce0454b399f01","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:38:59.079924Z","signature_b64":"iEZoyDgda2+ONqxuG4wdmZ/gUt8JKl28JHW4QDs8kFMupfAO2doLrhifKp9VchCKU7zn8k/Jc4D7Iw2ZEfagCw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"ed80414b0aa309e4ed2f9697a81ee8769fc69e01da8a07e5af6ce0454b399f01","last_reissued_at":"2026-05-18T02:38:59.079342Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:38:59.079342Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1410.8526","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":"2026-05-18T02:38:59Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"vuD8So4B+RzBBVtZcz94Z3sgNDyzpLJm5TyE/nxPG8OEwNivnh1RMnLDJD2L9lEA/Cxp3JA+EsizgrvdkzCiCA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-03T00:01:41.033252Z"},"content_sha256":"0e1d60479e94888e3778049954d792cd875855243c269c062c201f9d3b5f960a","schema_version":"1.0","event_id":"sha256:0e1d60479e94888e3778049954d792cd875855243c269c062c201f9d3b5f960a"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2014:5WAECSYKUME6J3JPS2L2QHXIO2","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Analogue Sum ASIC for L1 Trigger Decision in Cherenkov Telescope Cameras","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["hep-ex"],"primary_cat":"physics.ins-det","authors_text":"Andreu Sanuy, Carlos Delgado, David Gascon, Eric Delagnes, Fabrice Guilloux, Gustavo Martinez, Joan Abel Barrio, Joan Boix, Lluis Freixas Coromina, Luis Angel Tejedor, Oscar Blanch, Ruben Lopez Coto","submitted_at":"2014-10-30T17:02:31Z","abstract_excerpt":"The Cherenkov Telescope Array (CTA) project aims to build the largest ground-based gamma-ray observatory based on an array of Imaging Atmospheric Cherenkov Telescopes (IACTs). The CTA will implement a multi-level trigger system to distinguish between gamma ray-like induced showers and background images induced by night sky background (NSB) light. The trigger system is based on coincident detections among pixels (level 0 trigger), clusters of pixels (level 1) or telescopes. In this article, the first version of the application specific integrated circuit (ASIC) for Level 1 trigger system is pre"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1410.8526","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":"2026-05-18T02:38:59Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"RUu+YEPiAsqyKBqh/Hk/6298U/e6aoCtK/SxpGVVZW7I+DnNnjU3RlndsNCQlg/N4YGpt3m6VXMY/jqlBAuGAQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-03T00:01:41.033622Z"},"content_sha256":"b95367d6ed56d2fa8a3df563177612c41bae9715ca7f2943b8604b1d417d3a61","schema_version":"1.0","event_id":"sha256:b95367d6ed56d2fa8a3df563177612c41bae9715ca7f2943b8604b1d417d3a61"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/5WAECSYKUME6J3JPS2L2QHXIO2/bundle.json","state_url":"https://pith.science/pith/5WAECSYKUME6J3JPS2L2QHXIO2/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/5WAECSYKUME6J3JPS2L2QHXIO2/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":"2026-06-03T00:01:41Z","links":{"resolver":"https://pith.science/pith/5WAECSYKUME6J3JPS2L2QHXIO2","bundle":"https://pith.science/pith/5WAECSYKUME6J3JPS2L2QHXIO2/bundle.json","state":"https://pith.science/pith/5WAECSYKUME6J3JPS2L2QHXIO2/state.json","well_known_bundle":"https://pith.science/.well-known/pith/5WAECSYKUME6J3JPS2L2QHXIO2/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2014:5WAECSYKUME6J3JPS2L2QHXIO2","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":"a1e05763474d38bd1e3e03f153588722c1d7afcfe5614975af843e8653b7c3bc","cross_cats_sorted":["hep-ex"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.ins-det","submitted_at":"2014-10-30T17:02:31Z","title_canon_sha256":"4d93d8119a115355656a76d9801509fd20d49695991680712644fbf8d2cdfa82"},"schema_version":"1.0","source":{"id":"1410.8526","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1410.8526","created_at":"2026-05-18T02:38:59Z"},{"alias_kind":"arxiv_version","alias_value":"1410.8526v1","created_at":"2026-05-18T02:38:59Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1410.8526","created_at":"2026-05-18T02:38:59Z"},{"alias_kind":"pith_short_12","alias_value":"5WAECSYKUME6","created_at":"2026-05-18T12:28:16Z"},{"alias_kind":"pith_short_16","alias_value":"5WAECSYKUME6J3JP","created_at":"2026-05-18T12:28:16Z"},{"alias_kind":"pith_short_8","alias_value":"5WAECSYK","created_at":"2026-05-18T12:28:16Z"}],"graph_snapshots":[{"event_id":"sha256:b95367d6ed56d2fa8a3df563177612c41bae9715ca7f2943b8604b1d417d3a61","target":"graph","created_at":"2026-05-18T02:38:59Z","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) project aims to build the largest ground-based gamma-ray observatory based on an array of Imaging Atmospheric Cherenkov Telescopes (IACTs). The CTA will implement a multi-level trigger system to distinguish between gamma ray-like induced showers and background images induced by night sky background (NSB) light. The trigger system is based on coincident detections among pixels (level 0 trigger), clusters of pixels (level 1) or telescopes. In this article, the first version of the application specific integrated circuit (ASIC) for Level 1 trigger system is pre","authors_text":"Andreu Sanuy, Carlos Delgado, David Gascon, Eric Delagnes, Fabrice Guilloux, Gustavo Martinez, Joan Abel Barrio, Joan Boix, Lluis Freixas Coromina, Luis Angel Tejedor, Oscar Blanch, Ruben Lopez Coto","cross_cats":["hep-ex"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.ins-det","submitted_at":"2014-10-30T17:02:31Z","title":"Analogue Sum ASIC for L1 Trigger Decision in Cherenkov Telescope Cameras"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1410.8526","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":"sha256:0e1d60479e94888e3778049954d792cd875855243c269c062c201f9d3b5f960a","target":"record","created_at":"2026-05-18T02:38:59Z","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":"a1e05763474d38bd1e3e03f153588722c1d7afcfe5614975af843e8653b7c3bc","cross_cats_sorted":["hep-ex"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.ins-det","submitted_at":"2014-10-30T17:02:31Z","title_canon_sha256":"4d93d8119a115355656a76d9801509fd20d49695991680712644fbf8d2cdfa82"},"schema_version":"1.0","source":{"id":"1410.8526","kind":"arxiv","version":1}},"canonical_sha256":"ed80414b0aa309e4ed2f9697a81ee8769fc69e01da8a07e5af6ce0454b399f01","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"ed80414b0aa309e4ed2f9697a81ee8769fc69e01da8a07e5af6ce0454b399f01","first_computed_at":"2026-05-18T02:38:59.079342Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:38:59.079342Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"iEZoyDgda2+ONqxuG4wdmZ/gUt8JKl28JHW4QDs8kFMupfAO2doLrhifKp9VchCKU7zn8k/Jc4D7Iw2ZEfagCw==","signature_status":"signed_v1","signed_at":"2026-05-18T02:38:59.079924Z","signed_message":"canonical_sha256_bytes"},"source_id":"1410.8526","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:0e1d60479e94888e3778049954d792cd875855243c269c062c201f9d3b5f960a","sha256:b95367d6ed56d2fa8a3df563177612c41bae9715ca7f2943b8604b1d417d3a61"],"state_sha256":"722c38fc8d10bfa386b587648225df5666a9cf6fa13921b3cf506c8e50347ce0"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"YDjk2mE7YiwUc+WlrU5kUVnUUMlvl4VHqVFsL3zLj05Bw9EJ1RjgO5tzJbXZXle7Ql6HQVqYxdOKnt8/7HeeBA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-03T00:01:41.035631Z","bundle_sha256":"55da2bbc08b7202b2a80216bbb6dfad8bfd8dde3d7de30bc91b65407beb140a9"}}