{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2018:5HSBYR6FEDKY5YCGQOKXHIBELI","short_pith_number":"pith:5HSBYR6F","canonical_record":{"source":{"id":"1806.08180","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.ins-det","submitted_at":"2018-06-21T11:48:10Z","cross_cats_sorted":[],"title_canon_sha256":"3e818f381346e613e7a2dd106fa4ca431b359071df47b2d4defa4df0f1686acc","abstract_canon_sha256":"5602e3237c1148307a29255ef98da658decb6e7247be3068f72af1313351ccf1"},"schema_version":"1.0"},"canonical_sha256":"e9e41c47c520d58ee046839573a0245a12ee60f3e1e813de0bb4a4e7861f202b","source":{"kind":"arxiv","id":"1806.08180","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1806.08180","created_at":"2026-07-05T00:01:26Z"},{"alias_kind":"arxiv_version","alias_value":"1806.08180v1","created_at":"2026-07-05T00:01:26Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1806.08180","created_at":"2026-07-05T00:01:26Z"},{"alias_kind":"pith_short_12","alias_value":"5HSBYR6FEDKY","created_at":"2026-07-05T00:01:26Z"},{"alias_kind":"pith_short_16","alias_value":"5HSBYR6FEDKY5YCG","created_at":"2026-07-05T00:01:26Z"},{"alias_kind":"pith_short_8","alias_value":"5HSBYR6F","created_at":"2026-07-05T00:01:26Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2018:5HSBYR6FEDKY5YCGQOKXHIBELI","target":"record","payload":{"canonical_record":{"source":{"id":"1806.08180","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.ins-det","submitted_at":"2018-06-21T11:48:10Z","cross_cats_sorted":[],"title_canon_sha256":"3e818f381346e613e7a2dd106fa4ca431b359071df47b2d4defa4df0f1686acc","abstract_canon_sha256":"5602e3237c1148307a29255ef98da658decb6e7247be3068f72af1313351ccf1"},"schema_version":"1.0"},"canonical_sha256":"e9e41c47c520d58ee046839573a0245a12ee60f3e1e813de0bb4a4e7861f202b","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T00:01:26.608554Z","signature_b64":"YIfM+ob265eqOYDfw0+fWzNrwDQS1BjsvbW3HRAVFLI0k3Xe+Dmvm4OVu2yIzpoSngdDVbPG7NHTQzK8in0sAQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"e9e41c47c520d58ee046839573a0245a12ee60f3e1e813de0bb4a4e7861f202b","last_reissued_at":"2026-07-05T00:01:26.608102Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T00:01:26.608102Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1806.08180","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":"2026-07-05T00:01:26Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"SpakbUxwDroSZahXXggJHp31+hP8IWexk/NYJeTef7rKF/GFvRYfmSmgsXSH8eNt4q0AKQpx6iJbHwoZXtS0AQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-26T12:58:35.718246Z"},"content_sha256":"01a64d7315381c594e2be8cb7a979c87c717805a00ccc559b73f93c173af2241","schema_version":"1.0","event_id":"sha256:01a64d7315381c594e2be8cb7a979c87c717805a00ccc559b73f93c173af2241"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2018:5HSBYR6FEDKY5YCGQOKXHIBELI","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Upgrade of the Data Acquisition and Control System of Microwave Reflectometry on the Experimental Advanced Superconducting Tokamak","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"physics.ins-det","authors_text":"Fei Wen, Fubin Zhong, Gongshun Li, Haoming Xiang, Hao Qu, Kaixuan Ye, Mingfu Wu, Shoubiao Zhang, Tao Zhang, Xiang Gao, Xiang Han, Yuming Wang","submitted_at":"2018-06-21T11:48:10Z","abstract_excerpt":"The reflectometry on Experimental Advanced Superconducting Tokamak (EAST) is undergoing an upgrade for more comprehensive measurement of plasma density profile and fluctuation. The Data Acquisition and Control System (DACS) has been redeveloped to satisfy the requirements of the upgraded reflectometry. The profile reflectometry works in 30-110 GHz (X-mode) and 40-90GHz (O-mode), when the fluctuation reflectometry operates at 20 fixed frequency points in 50-110GHz (X-mode) and 20-60GHz (O-mode). The PXIe-based DACS includes two 8-channel 14-bit 250MSPS digitizers and ten 8-channel 12-bit 60MSPS"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1806.08180","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/1806.08180/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":"2026-07-05T00:01:26Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"T2dT7uPUj0R0f2P1PNJEUbLk860Vj9GwKQgfy+by3hlZcTD/hZ99fgrtWfFdP4LB9VQSvDEEu2L7nigaQ2yjDA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-26T12:58:35.718644Z"},"content_sha256":"f88603a7e6a9e58016f1d04a56dfc54c19d211d27084d4b5101c1b375e4b46d5","schema_version":"1.0","event_id":"sha256:f88603a7e6a9e58016f1d04a56dfc54c19d211d27084d4b5101c1b375e4b46d5"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/5HSBYR6FEDKY5YCGQOKXHIBELI/bundle.json","state_url":"https://pith.science/pith/5HSBYR6FEDKY5YCGQOKXHIBELI/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/5HSBYR6FEDKY5YCGQOKXHIBELI/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":"2026-07-26T12:58:35Z","links":{"resolver":"https://pith.science/pith/5HSBYR6FEDKY5YCGQOKXHIBELI","bundle":"https://pith.science/pith/5HSBYR6FEDKY5YCGQOKXHIBELI/bundle.json","state":"https://pith.science/pith/5HSBYR6FEDKY5YCGQOKXHIBELI/state.json","well_known_bundle":"https://pith.science/.well-known/pith/5HSBYR6FEDKY5YCGQOKXHIBELI/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2018:5HSBYR6FEDKY5YCGQOKXHIBELI","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":"5602e3237c1148307a29255ef98da658decb6e7247be3068f72af1313351ccf1","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.ins-det","submitted_at":"2018-06-21T11:48:10Z","title_canon_sha256":"3e818f381346e613e7a2dd106fa4ca431b359071df47b2d4defa4df0f1686acc"},"schema_version":"1.0","source":{"id":"1806.08180","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1806.08180","created_at":"2026-07-05T00:01:26Z"},{"alias_kind":"arxiv_version","alias_value":"1806.08180v1","created_at":"2026-07-05T00:01:26Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1806.08180","created_at":"2026-07-05T00:01:26Z"},{"alias_kind":"pith_short_12","alias_value":"5HSBYR6FEDKY","created_at":"2026-07-05T00:01:26Z"},{"alias_kind":"pith_short_16","alias_value":"5HSBYR6FEDKY5YCG","created_at":"2026-07-05T00:01:26Z"},{"alias_kind":"pith_short_8","alias_value":"5HSBYR6F","created_at":"2026-07-05T00:01:26Z"}],"graph_snapshots":[{"event_id":"sha256:f88603a7e6a9e58016f1d04a56dfc54c19d211d27084d4b5101c1b375e4b46d5","target":"graph","created_at":"2026-07-05T00:01:26Z","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/1806.08180/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"The reflectometry on Experimental Advanced Superconducting Tokamak (EAST) is undergoing an upgrade for more comprehensive measurement of plasma density profile and fluctuation. The Data Acquisition and Control System (DACS) has been redeveloped to satisfy the requirements of the upgraded reflectometry. The profile reflectometry works in 30-110 GHz (X-mode) and 40-90GHz (O-mode), when the fluctuation reflectometry operates at 20 fixed frequency points in 50-110GHz (X-mode) and 20-60GHz (O-mode). The PXIe-based DACS includes two 8-channel 14-bit 250MSPS digitizers and ten 8-channel 12-bit 60MSPS","authors_text":"Fei Wen, Fubin Zhong, Gongshun Li, Haoming Xiang, Hao Qu, Kaixuan Ye, Mingfu Wu, Shoubiao Zhang, Tao Zhang, Xiang Gao, Xiang Han, Yuming Wang","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.ins-det","submitted_at":"2018-06-21T11:48:10Z","title":"Upgrade of the Data Acquisition and Control System of Microwave Reflectometry on the Experimental Advanced Superconducting Tokamak"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1806.08180","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":"sha256:01a64d7315381c594e2be8cb7a979c87c717805a00ccc559b73f93c173af2241","target":"record","created_at":"2026-07-05T00:01:26Z","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":"5602e3237c1148307a29255ef98da658decb6e7247be3068f72af1313351ccf1","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.ins-det","submitted_at":"2018-06-21T11:48:10Z","title_canon_sha256":"3e818f381346e613e7a2dd106fa4ca431b359071df47b2d4defa4df0f1686acc"},"schema_version":"1.0","source":{"id":"1806.08180","kind":"arxiv","version":1}},"canonical_sha256":"e9e41c47c520d58ee046839573a0245a12ee60f3e1e813de0bb4a4e7861f202b","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"e9e41c47c520d58ee046839573a0245a12ee60f3e1e813de0bb4a4e7861f202b","first_computed_at":"2026-07-05T00:01:26.608102Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T00:01:26.608102Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"YIfM+ob265eqOYDfw0+fWzNrwDQS1BjsvbW3HRAVFLI0k3Xe+Dmvm4OVu2yIzpoSngdDVbPG7NHTQzK8in0sAQ==","signature_status":"signed_v1","signed_at":"2026-07-05T00:01:26.608554Z","signed_message":"canonical_sha256_bytes"},"source_id":"1806.08180","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:01a64d7315381c594e2be8cb7a979c87c717805a00ccc559b73f93c173af2241","sha256:f88603a7e6a9e58016f1d04a56dfc54c19d211d27084d4b5101c1b375e4b46d5"],"state_sha256":"8416aecd02e4dabdfc9b929884979e9e4101d7685f1ec9c02b6b0c68effae876"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"fRWjZj84rbAh+sAn2enqW/e5Cxxa8VRdLeC11kfCwaXNlbaqxBhzPWUbs9BPiEeRgp3PLEGMWhdntBBHiIdoCg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-07-26T12:58:35.720716Z","bundle_sha256":"f1e55815fd6526e934207ecf60608f97e6ee78bd83e64f608853f349ccdf7c22"}}