{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2015:IVKP3KZTVD5M2PX57YODEMK3CI","short_pith_number":"pith:IVKP3KZT","canonical_record":{"source":{"id":"1511.00456","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.acc-ph","submitted_at":"2015-11-02T11:45:46Z","cross_cats_sorted":[],"title_canon_sha256":"b6197c2508b65e988b5d4c2affade825cce6c42db773c494afd18a28418460c3","abstract_canon_sha256":"fdaef0bdb286c2888ca2a3442284cde2248cec33f1c8047b561e4c16a7eb02cb"},"schema_version":"1.0"},"canonical_sha256":"4554fdab33a8facd3efdfe1c32315b122be077fb1639a268bed12c015272f898","source":{"kind":"arxiv","id":"1511.00456","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1511.00456","created_at":"2026-05-18T01:15:00Z"},{"alias_kind":"arxiv_version","alias_value":"1511.00456v1","created_at":"2026-05-18T01:15:00Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1511.00456","created_at":"2026-05-18T01:15:00Z"},{"alias_kind":"pith_short_12","alias_value":"IVKP3KZTVD5M","created_at":"2026-05-18T12:29:25Z"},{"alias_kind":"pith_short_16","alias_value":"IVKP3KZTVD5M2PX5","created_at":"2026-05-18T12:29:25Z"},{"alias_kind":"pith_short_8","alias_value":"IVKP3KZT","created_at":"2026-05-18T12:29:25Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2015:IVKP3KZTVD5M2PX57YODEMK3CI","target":"record","payload":{"canonical_record":{"source":{"id":"1511.00456","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.acc-ph","submitted_at":"2015-11-02T11:45:46Z","cross_cats_sorted":[],"title_canon_sha256":"b6197c2508b65e988b5d4c2affade825cce6c42db773c494afd18a28418460c3","abstract_canon_sha256":"fdaef0bdb286c2888ca2a3442284cde2248cec33f1c8047b561e4c16a7eb02cb"},"schema_version":"1.0"},"canonical_sha256":"4554fdab33a8facd3efdfe1c32315b122be077fb1639a268bed12c015272f898","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:15:00.223872Z","signature_b64":"k/dfzyuzs/Ga8fHZoyNJy/Fblf6ng6MqriHlCWMsfCmkQ8x9Kfihf9eYFp6U9i9J0TH8GQiTtorgAVneAdUxCw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"4554fdab33a8facd3efdfe1c32315b122be077fb1639a268bed12c015272f898","last_reissued_at":"2026-05-18T01:15:00.223408Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:15:00.223408Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1511.00456","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":"2026-05-18T01:15:00Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"wMyIT1lPy2bhZW3DE4onpr5TtR1xt2t3CrajvnSZA2i5mAiG2stM77eNc5hAWGW4sB593dwIOOBQ40D2s7DwBw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-26T17:04:57.052334Z"},"content_sha256":"c766535d45f24c0f690c080ca023243364d115bfabfd8cadfb39d95cc0be4506","schema_version":"1.0","event_id":"sha256:c766535d45f24c0f690c080ca023243364d115bfabfd8cadfb39d95cc0be4506"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2015:IVKP3KZTVD5M2PX57YODEMK3CI","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Design of a 325MHz Half Wave Resonator prototype at IHEP","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"physics.acc-ph","authors_text":"Bo Xu, Feisi He, Guangwei Wang, Guangyuan Zhao, Jin Dai, Qiang Ma, Weimin Pan, Xinying Zhang, Xu Chen, Xuefang Huang, Yaping Liu, Yi Sun, Zhongquan Li, Zhou Xue","submitted_at":"2015-11-02T11:45:46Z","abstract_excerpt":"A 325MHz beta=0.14 superconducting half wave resonator(HWR) prototype has been developed at the Institute of High Energy Physics(IHEP), which can be applied in continuous wave (CW) high beam proton accelerators. In this paper, the electromagnetic (EM) design, multipacting simulation, mechanical optimization, and fabrication are introduced in details. In vertical test at 4.2K, the cavity reached Eacc=7MV/m with Q0=1.4*10^9 and Eacc=15.9MV/m with Q0=4.3*10^8."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1511.00456","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":"2026-05-18T01:15:00Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"wSX1JEfnrvC4/oAgx276j0N0gPucTuSvUByvX0GOlDap4il+wDGZWUW8DT3njN3THROsH8u50/ZRYBs5Yx41Aw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-26T17:04:57.052685Z"},"content_sha256":"def7e4bcfc764f5bb11593319f930b74489f4005d836b5f735224039a0898a6d","schema_version":"1.0","event_id":"sha256:def7e4bcfc764f5bb11593319f930b74489f4005d836b5f735224039a0898a6d"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/IVKP3KZTVD5M2PX57YODEMK3CI/bundle.json","state_url":"https://pith.science/pith/IVKP3KZTVD5M2PX57YODEMK3CI/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/IVKP3KZTVD5M2PX57YODEMK3CI/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":"2026-05-26T17:04:57Z","links":{"resolver":"https://pith.science/pith/IVKP3KZTVD5M2PX57YODEMK3CI","bundle":"https://pith.science/pith/IVKP3KZTVD5M2PX57YODEMK3CI/bundle.json","state":"https://pith.science/pith/IVKP3KZTVD5M2PX57YODEMK3CI/state.json","well_known_bundle":"https://pith.science/.well-known/pith/IVKP3KZTVD5M2PX57YODEMK3CI/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2015:IVKP3KZTVD5M2PX57YODEMK3CI","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":"fdaef0bdb286c2888ca2a3442284cde2248cec33f1c8047b561e4c16a7eb02cb","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.acc-ph","submitted_at":"2015-11-02T11:45:46Z","title_canon_sha256":"b6197c2508b65e988b5d4c2affade825cce6c42db773c494afd18a28418460c3"},"schema_version":"1.0","source":{"id":"1511.00456","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1511.00456","created_at":"2026-05-18T01:15:00Z"},{"alias_kind":"arxiv_version","alias_value":"1511.00456v1","created_at":"2026-05-18T01:15:00Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1511.00456","created_at":"2026-05-18T01:15:00Z"},{"alias_kind":"pith_short_12","alias_value":"IVKP3KZTVD5M","created_at":"2026-05-18T12:29:25Z"},{"alias_kind":"pith_short_16","alias_value":"IVKP3KZTVD5M2PX5","created_at":"2026-05-18T12:29:25Z"},{"alias_kind":"pith_short_8","alias_value":"IVKP3KZT","created_at":"2026-05-18T12:29:25Z"}],"graph_snapshots":[{"event_id":"sha256:def7e4bcfc764f5bb11593319f930b74489f4005d836b5f735224039a0898a6d","target":"graph","created_at":"2026-05-18T01:15:00Z","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":"A 325MHz beta=0.14 superconducting half wave resonator(HWR) prototype has been developed at the Institute of High Energy Physics(IHEP), which can be applied in continuous wave (CW) high beam proton accelerators. In this paper, the electromagnetic (EM) design, multipacting simulation, mechanical optimization, and fabrication are introduced in details. In vertical test at 4.2K, the cavity reached Eacc=7MV/m with Q0=1.4*10^9 and Eacc=15.9MV/m with Q0=4.3*10^8.","authors_text":"Bo Xu, Feisi He, Guangwei Wang, Guangyuan Zhao, Jin Dai, Qiang Ma, Weimin Pan, Xinying Zhang, Xu Chen, Xuefang Huang, Yaping Liu, Yi Sun, Zhongquan Li, Zhou Xue","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.acc-ph","submitted_at":"2015-11-02T11:45:46Z","title":"Design of a 325MHz Half Wave Resonator prototype at IHEP"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1511.00456","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:c766535d45f24c0f690c080ca023243364d115bfabfd8cadfb39d95cc0be4506","target":"record","created_at":"2026-05-18T01:15:00Z","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":"fdaef0bdb286c2888ca2a3442284cde2248cec33f1c8047b561e4c16a7eb02cb","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.acc-ph","submitted_at":"2015-11-02T11:45:46Z","title_canon_sha256":"b6197c2508b65e988b5d4c2affade825cce6c42db773c494afd18a28418460c3"},"schema_version":"1.0","source":{"id":"1511.00456","kind":"arxiv","version":1}},"canonical_sha256":"4554fdab33a8facd3efdfe1c32315b122be077fb1639a268bed12c015272f898","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"4554fdab33a8facd3efdfe1c32315b122be077fb1639a268bed12c015272f898","first_computed_at":"2026-05-18T01:15:00.223408Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:15:00.223408Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"k/dfzyuzs/Ga8fHZoyNJy/Fblf6ng6MqriHlCWMsfCmkQ8x9Kfihf9eYFp6U9i9J0TH8GQiTtorgAVneAdUxCw==","signature_status":"signed_v1","signed_at":"2026-05-18T01:15:00.223872Z","signed_message":"canonical_sha256_bytes"},"source_id":"1511.00456","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:c766535d45f24c0f690c080ca023243364d115bfabfd8cadfb39d95cc0be4506","sha256:def7e4bcfc764f5bb11593319f930b74489f4005d836b5f735224039a0898a6d"],"state_sha256":"9186193d10f63caee514d9eb85e77ef4d69e9e497eecce71b2121d203c5fe06f"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"6F8TaEa9mnFr0RA0+RmoOpg2SFUQQXASrIODdRPLe5dMktT84pq3uUZN/lsFrG5+wymN74t4iIpKeIXiuCCBAg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-26T17:04:57.055029Z","bundle_sha256":"899c9a6ff7f4e322bd2c8db6230744581caf2aca1d27ef8d6dd0f30c352c926b"}}