{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2015:XLX77WLCX7LR22FTXMNW5SKMJK","short_pith_number":"pith:XLX77WLC","canonical_record":{"source":{"id":"1509.00710","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.IM","submitted_at":"2015-09-02T14:07:34Z","cross_cats_sorted":[],"title_canon_sha256":"487bb870dd23d3ad1bb59ef46413065aabe749acca0ae54288328d14eb26097b","abstract_canon_sha256":"847252a387a896e5755ee66e117e91cde6131e8377ac5b2182f6065832311228"},"schema_version":"1.0"},"canonical_sha256":"baefffd962bfd71d68b3bb1b6ec94c4a962a48ca0438335e6e6492ecb9d40a6c","source":{"kind":"arxiv","id":"1509.00710","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1509.00710","created_at":"2026-07-04T23:55:01Z"},{"alias_kind":"arxiv_version","alias_value":"1509.00710v1","created_at":"2026-07-04T23:55:01Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1509.00710","created_at":"2026-07-04T23:55:01Z"},{"alias_kind":"pith_short_12","alias_value":"XLX77WLCX7LR","created_at":"2026-07-04T23:55:01Z"},{"alias_kind":"pith_short_16","alias_value":"XLX77WLCX7LR22FT","created_at":"2026-07-04T23:55:01Z"},{"alias_kind":"pith_short_8","alias_value":"XLX77WLC","created_at":"2026-07-04T23:55:01Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2015:XLX77WLCX7LR22FTXMNW5SKMJK","target":"record","payload":{"canonical_record":{"source":{"id":"1509.00710","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.IM","submitted_at":"2015-09-02T14:07:34Z","cross_cats_sorted":[],"title_canon_sha256":"487bb870dd23d3ad1bb59ef46413065aabe749acca0ae54288328d14eb26097b","abstract_canon_sha256":"847252a387a896e5755ee66e117e91cde6131e8377ac5b2182f6065832311228"},"schema_version":"1.0"},"canonical_sha256":"baefffd962bfd71d68b3bb1b6ec94c4a962a48ca0438335e6e6492ecb9d40a6c","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-04T23:55:01.497754Z","signature_b64":"M+DhIJnNZNADflLzCnvORbTV5FIEU3bNz9f5rkWQe9OjLuYca/9nrSbA/zvY2NUV2agxnZ1EM2ys8JQ6UNWbBA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"baefffd962bfd71d68b3bb1b6ec94c4a962a48ca0438335e6e6492ecb9d40a6c","last_reissued_at":"2026-07-04T23:55:01.497307Z","signature_status":"signed_v1","first_computed_at":"2026-07-04T23:55:01.497307Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1509.00710","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":"2026-07-04T23:55:01Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"JPseCvDFGv/KDgk4OS8tolNo08teyiS9HLr2+Y5JqOAbPyQStAql2mLie1s7ZHgmyMr5+EzgxYC59jMSxC/2Cg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-07T09:04:57.519839Z"},"content_sha256":"51ead8a742f0f636916694104a63e7d25fb44ef3d2b68b9940f021ca63303e44","schema_version":"1.0","event_id":"sha256:51ead8a742f0f636916694104a63e7d25fb44ef3d2b68b9940f021ca63303e44"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2015:XLX77WLCX7LR22FTXMNW5SKMJK","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Construction of a Medium-Sized Schwarzschild-Couder Telescope for the Cherenkov Telescope Array: Implementation of the Cherenkov-Camera Data Acquisition System","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.IM","authors_text":"B. Humensky, J. Buckley, M. Santander, R. Mukherjee (for the CTA Consortium)","submitted_at":"2015-09-02T14:07:34Z","abstract_excerpt":"A medium-sized Schwarzchild-Couder Telescope (SCT) is being developed as a possible extension for the Cherenkov Telescope Array (CTA). The Cherenkov camera of the telescope is designed to have 11328 silicon photomultiplier pixels capable of capturing high-resolution images of air showers in the atmosphere. The combination of the large number of pixels and the high trigger rate (> 5 kHz) expected for this telescope results in a multi-Gbps data throughput. This sets challenging requirements on the design and performance of a data acquisition system for processing and storing this data. A prototy"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1509.00710","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/1509.00710/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":"2026-07-04T23:55:01Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"LqAMwreb1j5xwVA3V8DMptNTvVrjlNph5iid/SuPioxqqdKjLpETgQtxzVnnMwbdytM9dMXXUhoFvbVJpDPKCA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-07T09:04:57.520195Z"},"content_sha256":"79081e492ff83866057920ee39c844e1f64e5618b94988f769fe0a121de2dac9","schema_version":"1.0","event_id":"sha256:79081e492ff83866057920ee39c844e1f64e5618b94988f769fe0a121de2dac9"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/XLX77WLCX7LR22FTXMNW5SKMJK/bundle.json","state_url":"https://pith.science/pith/XLX77WLCX7LR22FTXMNW5SKMJK/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/XLX77WLCX7LR22FTXMNW5SKMJK/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":"2026-07-07T09:04:57Z","links":{"resolver":"https://pith.science/pith/XLX77WLCX7LR22FTXMNW5SKMJK","bundle":"https://pith.science/pith/XLX77WLCX7LR22FTXMNW5SKMJK/bundle.json","state":"https://pith.science/pith/XLX77WLCX7LR22FTXMNW5SKMJK/state.json","well_known_bundle":"https://pith.science/.well-known/pith/XLX77WLCX7LR22FTXMNW5SKMJK/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2015:XLX77WLCX7LR22FTXMNW5SKMJK","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":"847252a387a896e5755ee66e117e91cde6131e8377ac5b2182f6065832311228","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.IM","submitted_at":"2015-09-02T14:07:34Z","title_canon_sha256":"487bb870dd23d3ad1bb59ef46413065aabe749acca0ae54288328d14eb26097b"},"schema_version":"1.0","source":{"id":"1509.00710","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1509.00710","created_at":"2026-07-04T23:55:01Z"},{"alias_kind":"arxiv_version","alias_value":"1509.00710v1","created_at":"2026-07-04T23:55:01Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1509.00710","created_at":"2026-07-04T23:55:01Z"},{"alias_kind":"pith_short_12","alias_value":"XLX77WLCX7LR","created_at":"2026-07-04T23:55:01Z"},{"alias_kind":"pith_short_16","alias_value":"XLX77WLCX7LR22FT","created_at":"2026-07-04T23:55:01Z"},{"alias_kind":"pith_short_8","alias_value":"XLX77WLC","created_at":"2026-07-04T23:55:01Z"}],"graph_snapshots":[{"event_id":"sha256:79081e492ff83866057920ee39c844e1f64e5618b94988f769fe0a121de2dac9","target":"graph","created_at":"2026-07-04T23:55:01Z","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/1509.00710/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"A medium-sized Schwarzchild-Couder Telescope (SCT) is being developed as a possible extension for the Cherenkov Telescope Array (CTA). The Cherenkov camera of the telescope is designed to have 11328 silicon photomultiplier pixels capable of capturing high-resolution images of air showers in the atmosphere. The combination of the large number of pixels and the high trigger rate (> 5 kHz) expected for this telescope results in a multi-Gbps data throughput. This sets challenging requirements on the design and performance of a data acquisition system for processing and storing this data. A prototy","authors_text":"B. Humensky, J. Buckley, M. Santander, R. Mukherjee (for the CTA Consortium)","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.IM","submitted_at":"2015-09-02T14:07:34Z","title":"Construction of a Medium-Sized Schwarzschild-Couder Telescope for the Cherenkov Telescope Array: Implementation of the Cherenkov-Camera Data Acquisition System"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1509.00710","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":"sha256:51ead8a742f0f636916694104a63e7d25fb44ef3d2b68b9940f021ca63303e44","target":"record","created_at":"2026-07-04T23:55:01Z","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":"847252a387a896e5755ee66e117e91cde6131e8377ac5b2182f6065832311228","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.IM","submitted_at":"2015-09-02T14:07:34Z","title_canon_sha256":"487bb870dd23d3ad1bb59ef46413065aabe749acca0ae54288328d14eb26097b"},"schema_version":"1.0","source":{"id":"1509.00710","kind":"arxiv","version":1}},"canonical_sha256":"baefffd962bfd71d68b3bb1b6ec94c4a962a48ca0438335e6e6492ecb9d40a6c","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"baefffd962bfd71d68b3bb1b6ec94c4a962a48ca0438335e6e6492ecb9d40a6c","first_computed_at":"2026-07-04T23:55:01.497307Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-04T23:55:01.497307Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"M+DhIJnNZNADflLzCnvORbTV5FIEU3bNz9f5rkWQe9OjLuYca/9nrSbA/zvY2NUV2agxnZ1EM2ys8JQ6UNWbBA==","signature_status":"signed_v1","signed_at":"2026-07-04T23:55:01.497754Z","signed_message":"canonical_sha256_bytes"},"source_id":"1509.00710","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:51ead8a742f0f636916694104a63e7d25fb44ef3d2b68b9940f021ca63303e44","sha256:79081e492ff83866057920ee39c844e1f64e5618b94988f769fe0a121de2dac9"],"state_sha256":"43251e4af4157828c1dda97a373c90ed825a36b7409002367d201e3c0f4bbe33"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"SaxQPK+PPyBaavYat788zLDjoQb9I1CtSXmE9cTHh4JUVrj5Ht/YoIsx+rLjsziwWt/fMsnLzwxOETskQFIGBQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-07-07T09:04:57.522026Z","bundle_sha256":"d2143c518e57ee908754aa813ee12da7219e6b386b38a3a3681ea626b4666ee9"}}