{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2011:GIUBFSQM2KGH2VK5LZNB74NNLF","short_pith_number":"pith:GIUBFSQM","canonical_record":{"source":{"id":"1102.2472","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.IM","submitted_at":"2011-02-12T02:22:12Z","cross_cats_sorted":["astro-ph.HE","physics.ins-det"],"title_canon_sha256":"37f0a21e9eb097844c31f33bbe7faf0c3e1899807d92f6c5ff0ac202c5021584","abstract_canon_sha256":"b4ba52777f84eaccea2fff132b43bddf5cc301f32959de6e1cea07e5bafc07fc"},"schema_version":"1.0"},"canonical_sha256":"322812ca0cd28c7d555d5e5a1ff1ad59787a7d851aa0f6a44dcc19d198fd5a18","source":{"kind":"arxiv","id":"1102.2472","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1102.2472","created_at":"2026-05-18T04:28:47Z"},{"alias_kind":"arxiv_version","alias_value":"1102.2472v1","created_at":"2026-05-18T04:28:47Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1102.2472","created_at":"2026-05-18T04:28:47Z"},{"alias_kind":"pith_short_12","alias_value":"GIUBFSQM2KGH","created_at":"2026-05-18T12:26:30Z"},{"alias_kind":"pith_short_16","alias_value":"GIUBFSQM2KGH2VK5","created_at":"2026-05-18T12:26:30Z"},{"alias_kind":"pith_short_8","alias_value":"GIUBFSQM","created_at":"2026-05-18T12:26:30Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2011:GIUBFSQM2KGH2VK5LZNB74NNLF","target":"record","payload":{"canonical_record":{"source":{"id":"1102.2472","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.IM","submitted_at":"2011-02-12T02:22:12Z","cross_cats_sorted":["astro-ph.HE","physics.ins-det"],"title_canon_sha256":"37f0a21e9eb097844c31f33bbe7faf0c3e1899807d92f6c5ff0ac202c5021584","abstract_canon_sha256":"b4ba52777f84eaccea2fff132b43bddf5cc301f32959de6e1cea07e5bafc07fc"},"schema_version":"1.0"},"canonical_sha256":"322812ca0cd28c7d555d5e5a1ff1ad59787a7d851aa0f6a44dcc19d198fd5a18","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T04:28:47.332848Z","signature_b64":"Gj9WiHYHlPC0/E+Re2/7y3xZlqm5P3UokW62T620Ui+v+RUkGZeHcztXZtJ01LS7flJNq4cie98xHHk34pwiCQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"322812ca0cd28c7d555d5e5a1ff1ad59787a7d851aa0f6a44dcc19d198fd5a18","last_reissued_at":"2026-05-18T04:28:47.331985Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T04:28:47.331985Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1102.2472","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":"2026-05-18T04:28:47Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"vWm985jYvMGOnr2Ghp6xScHV5Sj9549HxkxbsMNgs97i+Ivd8vyC5iGyJ287cvnKSMAdG1RcDT6QtuqxXn+PBg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-20T08:27:40.990902Z"},"content_sha256":"eaa43f1a6763c278a7b04bebacfb879f50edca58ee47ac94d65d15569b69e76a","schema_version":"1.0","event_id":"sha256:eaa43f1a6763c278a7b04bebacfb879f50edca58ee47ac94d65d15569b69e76a"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2011:GIUBFSQM2KGH2VK5LZNB74NNLF","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Development of the analog ASIC for multi-channel readout X-ray CCD camera","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.HE","physics.ins-det"],"primary_cat":"astro-ph.IM","authors_text":"Daisuke Matsuura, Haruyoshi Katayama, Hirokazu Ikeda, Hiroshi Nakajima, Hiroshi Tsunemi, Hisashi Kitamura, John P. Doty, Naohisa Anabuki, Toshihiro Idehara, Yukio Uchihori","submitted_at":"2011-02-12T02:22:12Z","abstract_excerpt":"We report on the performance of an analog application-specific integrated circuit (ASIC) developed aiming for the front-end electronics of the X-ray CCDcamera system onboard the next X-ray astronomical satellite, ASTRO-H. It has four identical channels that simultaneously process the CCD signals. Distinctive capability of analog-to-digital conversion enables us to construct a CCD camera body that outputs only digital signals. As the result of the front-end electronics test, it works properly with low input noise of =<30 uV at the pixel rate below 100 kHz. The power consumption is sufficiently "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1102.2472","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":"2026-05-18T04:28:47Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"lpllkYaobwEaRmzLbXHJnk3hBU5DiBHOlXgEd5xBaVa9uLteukaawoN++oks1Tn/uyWJ9ym5SpPo/yC6lMhZCg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-20T08:27:40.991252Z"},"content_sha256":"b5dbf0824b2c9b568a1323776c2efb8a3f082fe2e41c6b0c0d9599f6c6a28861","schema_version":"1.0","event_id":"sha256:b5dbf0824b2c9b568a1323776c2efb8a3f082fe2e41c6b0c0d9599f6c6a28861"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/GIUBFSQM2KGH2VK5LZNB74NNLF/bundle.json","state_url":"https://pith.science/pith/GIUBFSQM2KGH2VK5LZNB74NNLF/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/GIUBFSQM2KGH2VK5LZNB74NNLF/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":"2026-05-20T08:27:40Z","links":{"resolver":"https://pith.science/pith/GIUBFSQM2KGH2VK5LZNB74NNLF","bundle":"https://pith.science/pith/GIUBFSQM2KGH2VK5LZNB74NNLF/bundle.json","state":"https://pith.science/pith/GIUBFSQM2KGH2VK5LZNB74NNLF/state.json","well_known_bundle":"https://pith.science/.well-known/pith/GIUBFSQM2KGH2VK5LZNB74NNLF/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2011:GIUBFSQM2KGH2VK5LZNB74NNLF","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":"b4ba52777f84eaccea2fff132b43bddf5cc301f32959de6e1cea07e5bafc07fc","cross_cats_sorted":["astro-ph.HE","physics.ins-det"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.IM","submitted_at":"2011-02-12T02:22:12Z","title_canon_sha256":"37f0a21e9eb097844c31f33bbe7faf0c3e1899807d92f6c5ff0ac202c5021584"},"schema_version":"1.0","source":{"id":"1102.2472","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1102.2472","created_at":"2026-05-18T04:28:47Z"},{"alias_kind":"arxiv_version","alias_value":"1102.2472v1","created_at":"2026-05-18T04:28:47Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1102.2472","created_at":"2026-05-18T04:28:47Z"},{"alias_kind":"pith_short_12","alias_value":"GIUBFSQM2KGH","created_at":"2026-05-18T12:26:30Z"},{"alias_kind":"pith_short_16","alias_value":"GIUBFSQM2KGH2VK5","created_at":"2026-05-18T12:26:30Z"},{"alias_kind":"pith_short_8","alias_value":"GIUBFSQM","created_at":"2026-05-18T12:26:30Z"}],"graph_snapshots":[{"event_id":"sha256:b5dbf0824b2c9b568a1323776c2efb8a3f082fe2e41c6b0c0d9599f6c6a28861","target":"graph","created_at":"2026-05-18T04:28:47Z","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":"We report on the performance of an analog application-specific integrated circuit (ASIC) developed aiming for the front-end electronics of the X-ray CCDcamera system onboard the next X-ray astronomical satellite, ASTRO-H. It has four identical channels that simultaneously process the CCD signals. Distinctive capability of analog-to-digital conversion enables us to construct a CCD camera body that outputs only digital signals. As the result of the front-end electronics test, it works properly with low input noise of =<30 uV at the pixel rate below 100 kHz. The power consumption is sufficiently ","authors_text":"Daisuke Matsuura, Haruyoshi Katayama, Hirokazu Ikeda, Hiroshi Nakajima, Hiroshi Tsunemi, Hisashi Kitamura, John P. Doty, Naohisa Anabuki, Toshihiro Idehara, Yukio Uchihori","cross_cats":["astro-ph.HE","physics.ins-det"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.IM","submitted_at":"2011-02-12T02:22:12Z","title":"Development of the analog ASIC for multi-channel readout X-ray CCD camera"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1102.2472","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:eaa43f1a6763c278a7b04bebacfb879f50edca58ee47ac94d65d15569b69e76a","target":"record","created_at":"2026-05-18T04:28:47Z","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":"b4ba52777f84eaccea2fff132b43bddf5cc301f32959de6e1cea07e5bafc07fc","cross_cats_sorted":["astro-ph.HE","physics.ins-det"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.IM","submitted_at":"2011-02-12T02:22:12Z","title_canon_sha256":"37f0a21e9eb097844c31f33bbe7faf0c3e1899807d92f6c5ff0ac202c5021584"},"schema_version":"1.0","source":{"id":"1102.2472","kind":"arxiv","version":1}},"canonical_sha256":"322812ca0cd28c7d555d5e5a1ff1ad59787a7d851aa0f6a44dcc19d198fd5a18","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"322812ca0cd28c7d555d5e5a1ff1ad59787a7d851aa0f6a44dcc19d198fd5a18","first_computed_at":"2026-05-18T04:28:47.331985Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T04:28:47.331985Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"Gj9WiHYHlPC0/E+Re2/7y3xZlqm5P3UokW62T620Ui+v+RUkGZeHcztXZtJ01LS7flJNq4cie98xHHk34pwiCQ==","signature_status":"signed_v1","signed_at":"2026-05-18T04:28:47.332848Z","signed_message":"canonical_sha256_bytes"},"source_id":"1102.2472","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:eaa43f1a6763c278a7b04bebacfb879f50edca58ee47ac94d65d15569b69e76a","sha256:b5dbf0824b2c9b568a1323776c2efb8a3f082fe2e41c6b0c0d9599f6c6a28861"],"state_sha256":"312497ca0952fb24b6a47c9f41b76010fe42ccd227e32f279c8c54e3e7c648c1"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"CXO60MXk/avBJstLUXdilaih4Kils+EMpucWQfLIo4plLkDFizDSoQchCoGcSrTM8ONmDllb3jHngsglsfinCQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-20T08:27:40.993253Z","bundle_sha256":"f91652f0227abe068d4ee5b56f3da4bb8cac2861453834fb848619f728a18716"}}