{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2016:XZVTDK6DNIZO3RR347JJSRBTFZ","short_pith_number":"pith:XZVTDK6D","canonical_record":{"source":{"id":"1601.06508","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.acc-ph","submitted_at":"2016-01-25T08:28:53Z","cross_cats_sorted":[],"title_canon_sha256":"d38b82be4b31f06c173df3b64871719cc4f72ca793df0c02e5f57f49c0bd7d0c","abstract_canon_sha256":"cfd8fcd7226f4a40aaedca9b489db18e0a4c8b38af9a6cc771411324941a3670"},"schema_version":"1.0"},"canonical_sha256":"be6b31abc36a32edc63be7d29944332e7fb9cd2fe4e460a027ce8b494fe0f58d","source":{"kind":"arxiv","id":"1601.06508","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1601.06508","created_at":"2026-05-18T01:10:07Z"},{"alias_kind":"arxiv_version","alias_value":"1601.06508v1","created_at":"2026-05-18T01:10:07Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1601.06508","created_at":"2026-05-18T01:10:07Z"},{"alias_kind":"pith_short_12","alias_value":"XZVTDK6DNIZO","created_at":"2026-05-18T12:30:51Z"},{"alias_kind":"pith_short_16","alias_value":"XZVTDK6DNIZO3RR3","created_at":"2026-05-18T12:30:51Z"},{"alias_kind":"pith_short_8","alias_value":"XZVTDK6D","created_at":"2026-05-18T12:30:51Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2016:XZVTDK6DNIZO3RR347JJSRBTFZ","target":"record","payload":{"canonical_record":{"source":{"id":"1601.06508","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.acc-ph","submitted_at":"2016-01-25T08:28:53Z","cross_cats_sorted":[],"title_canon_sha256":"d38b82be4b31f06c173df3b64871719cc4f72ca793df0c02e5f57f49c0bd7d0c","abstract_canon_sha256":"cfd8fcd7226f4a40aaedca9b489db18e0a4c8b38af9a6cc771411324941a3670"},"schema_version":"1.0"},"canonical_sha256":"be6b31abc36a32edc63be7d29944332e7fb9cd2fe4e460a027ce8b494fe0f58d","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:10:07.402906Z","signature_b64":"nHzXgOO9kOmBL3a3U/ei3jz1cNZh7k/LlVec9pd8VFoS5JhUfqhLekeAV1THR9FC7VtXoT5sCxdm+UluyB9pCQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"be6b31abc36a32edc63be7d29944332e7fb9cd2fe4e460a027ce8b494fe0f58d","last_reissued_at":"2026-05-18T01:10:07.402241Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:10:07.402241Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1601.06508","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":"2026-05-18T01:10:07Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"JfzpShhe5PvZPNN7IicYV0aYN/kzX9V5tBFL4RJdBO2mJdIiPXfXj0BhecQMhMHFPzehaud08CRBfCWlvTHpCQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-01T18:47:14.300804Z"},"content_sha256":"573f032b8d48b6f0ae3bf0652603988b291b16d399ca2e897c1075d69df52b8f","schema_version":"1.0","event_id":"sha256:573f032b8d48b6f0ae3bf0652603988b291b16d399ca2e897c1075d69df52b8f"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2016:XZVTDK6DNIZO3RR347JJSRBTFZ","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Study on transient beam loading compensation for China ADS proton linac injector II","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"physics.acc-ph","authors_text":"Qi Chen, Rui-Feng Zhang, Sheng-Hu Zhang, Tom Powers, Wei Chang, Xian-Wu Wang, Yuan He, Zheng Gao, Zheng-Long Zhu","submitted_at":"2016-01-25T08:28:53Z","abstract_excerpt":"Significant transient beam loading effects were observed during beam commissioning tests of prototype II of the injector for the Accelerator Driven Sub-critical (ADS) system, which took place at the Institute of Modern Physics, Chinese Academy of Sciences, between October and December 2014. During these tests experiments were performed with CW operation of the cavities with pulsed beam current, and the system was configured to make use of a prototype digital low level radio frequency (LLRF) controller. The system was originally operated in pulsed mode with a simple PID feedback control algorit"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1601.06508","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":"2026-05-18T01:10:07Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"mooDjAy8QMMdFv3J/nNGlZLGXuul7zTV5Kzudg+sFoL7u+ubay1cbwJqJKBTmUhfcjjdzn5Rca8x3tHaHVpxCw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-01T18:47:14.301148Z"},"content_sha256":"1263bc40db8731370204717b5d93c4544d87979b97a07b14f6ddf20652337882","schema_version":"1.0","event_id":"sha256:1263bc40db8731370204717b5d93c4544d87979b97a07b14f6ddf20652337882"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/XZVTDK6DNIZO3RR347JJSRBTFZ/bundle.json","state_url":"https://pith.science/pith/XZVTDK6DNIZO3RR347JJSRBTFZ/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/XZVTDK6DNIZO3RR347JJSRBTFZ/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":"2026-06-01T18:47:14Z","links":{"resolver":"https://pith.science/pith/XZVTDK6DNIZO3RR347JJSRBTFZ","bundle":"https://pith.science/pith/XZVTDK6DNIZO3RR347JJSRBTFZ/bundle.json","state":"https://pith.science/pith/XZVTDK6DNIZO3RR347JJSRBTFZ/state.json","well_known_bundle":"https://pith.science/.well-known/pith/XZVTDK6DNIZO3RR347JJSRBTFZ/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2016:XZVTDK6DNIZO3RR347JJSRBTFZ","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":"cfd8fcd7226f4a40aaedca9b489db18e0a4c8b38af9a6cc771411324941a3670","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.acc-ph","submitted_at":"2016-01-25T08:28:53Z","title_canon_sha256":"d38b82be4b31f06c173df3b64871719cc4f72ca793df0c02e5f57f49c0bd7d0c"},"schema_version":"1.0","source":{"id":"1601.06508","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1601.06508","created_at":"2026-05-18T01:10:07Z"},{"alias_kind":"arxiv_version","alias_value":"1601.06508v1","created_at":"2026-05-18T01:10:07Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1601.06508","created_at":"2026-05-18T01:10:07Z"},{"alias_kind":"pith_short_12","alias_value":"XZVTDK6DNIZO","created_at":"2026-05-18T12:30:51Z"},{"alias_kind":"pith_short_16","alias_value":"XZVTDK6DNIZO3RR3","created_at":"2026-05-18T12:30:51Z"},{"alias_kind":"pith_short_8","alias_value":"XZVTDK6D","created_at":"2026-05-18T12:30:51Z"}],"graph_snapshots":[{"event_id":"sha256:1263bc40db8731370204717b5d93c4544d87979b97a07b14f6ddf20652337882","target":"graph","created_at":"2026-05-18T01:10:07Z","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":"Significant transient beam loading effects were observed during beam commissioning tests of prototype II of the injector for the Accelerator Driven Sub-critical (ADS) system, which took place at the Institute of Modern Physics, Chinese Academy of Sciences, between October and December 2014. During these tests experiments were performed with CW operation of the cavities with pulsed beam current, and the system was configured to make use of a prototype digital low level radio frequency (LLRF) controller. The system was originally operated in pulsed mode with a simple PID feedback control algorit","authors_text":"Qi Chen, Rui-Feng Zhang, Sheng-Hu Zhang, Tom Powers, Wei Chang, Xian-Wu Wang, Yuan He, Zheng Gao, Zheng-Long Zhu","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.acc-ph","submitted_at":"2016-01-25T08:28:53Z","title":"Study on transient beam loading compensation for China ADS proton linac injector II"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1601.06508","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":"sha256:573f032b8d48b6f0ae3bf0652603988b291b16d399ca2e897c1075d69df52b8f","target":"record","created_at":"2026-05-18T01:10:07Z","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":"cfd8fcd7226f4a40aaedca9b489db18e0a4c8b38af9a6cc771411324941a3670","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.acc-ph","submitted_at":"2016-01-25T08:28:53Z","title_canon_sha256":"d38b82be4b31f06c173df3b64871719cc4f72ca793df0c02e5f57f49c0bd7d0c"},"schema_version":"1.0","source":{"id":"1601.06508","kind":"arxiv","version":1}},"canonical_sha256":"be6b31abc36a32edc63be7d29944332e7fb9cd2fe4e460a027ce8b494fe0f58d","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"be6b31abc36a32edc63be7d29944332e7fb9cd2fe4e460a027ce8b494fe0f58d","first_computed_at":"2026-05-18T01:10:07.402241Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:10:07.402241Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"nHzXgOO9kOmBL3a3U/ei3jz1cNZh7k/LlVec9pd8VFoS5JhUfqhLekeAV1THR9FC7VtXoT5sCxdm+UluyB9pCQ==","signature_status":"signed_v1","signed_at":"2026-05-18T01:10:07.402906Z","signed_message":"canonical_sha256_bytes"},"source_id":"1601.06508","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:573f032b8d48b6f0ae3bf0652603988b291b16d399ca2e897c1075d69df52b8f","sha256:1263bc40db8731370204717b5d93c4544d87979b97a07b14f6ddf20652337882"],"state_sha256":"3c600811869131f23c9dd9efe3dfd41558c986adf644b5c0aece088fa8d5445f"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"2YoFYScPYI+7P7e9WrY6d8hsd2WlMBG65vQ2/jUKiFpKiROzjpDeE0rF+ouZ3InoHASgMfQzOGHOFwEvn1g0Cw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-01T18:47:14.303193Z","bundle_sha256":"34265351b41f30e73932b25450f70f1d76e68116531a3010bafa55781b13752f"}}