{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2015:AKV57RLXGDU5PKI2FVO5MF52YJ","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":"99dd0dedfea0c41d996300a21f295ea48ab666424966504ce0654a3893bc6f2b","cross_cats_sorted":["hep-ex"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.ins-det","submitted_at":"2015-03-09T14:47:05Z","title_canon_sha256":"93bf5f3bdee584de9b1eabb76a40dadbb5c79fd00dfb285915525cacf09b602d"},"schema_version":"1.0","source":{"id":"1503.02497","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1503.02497","created_at":"2026-05-18T02:25:19Z"},{"alias_kind":"arxiv_version","alias_value":"1503.02497v1","created_at":"2026-05-18T02:25:19Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1503.02497","created_at":"2026-05-18T02:25:19Z"},{"alias_kind":"pith_short_12","alias_value":"AKV57RLXGDU5","created_at":"2026-05-18T12:29:10Z"},{"alias_kind":"pith_short_16","alias_value":"AKV57RLXGDU5PKI2","created_at":"2026-05-18T12:29:10Z"},{"alias_kind":"pith_short_8","alias_value":"AKV57RLX","created_at":"2026-05-18T12:29:10Z"}],"graph_snapshots":[{"event_id":"sha256:165c5f259dc73fd30d4472db26f2f641eb55c9581d0b176a68e03a77c2c9b268","target":"graph","created_at":"2026-05-18T02:25:19Z","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":"Aging experiments of a novel type of large area MCP-PMT made by JUNO collaboration were conducted.In these aging experiments, the multi-photoelectron spectrum and single photoelectron spectrum were measured daily,as well as the MCP resistance of the second PMT before and after the experiment. Two PMTs were aged successivelyfor cross check. The first PMT was aged for 52 days, while the other one was aged for 84 days. In order to study the mechanism of the aging process, the high voltage on the second PMT was increased to accelerate its aging process when the cumulative output of charge from its","authors_text":"Dong Li, Feng-Jiao Luo, Guo-Rui Huang, Hu-Lin Liu, Jian-Ning Sun, Jing-Kai Xia, Jing-Shou Tian, Li-Wei Xin, Ming Qi, Sen Qian, Shu-Guang Si, Shu-Lin Liu, Wei-Hua Li, Wen-Wen Wang, Xing-Chao Wang, Xing Wang, Ya-Ping Cheng, Yong-Lin Wei, Yue-Kun Heng, Zhe Ning","cross_cats":["hep-ex"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.ins-det","submitted_at":"2015-03-09T14:47:05Z","title":"The study of the aging behavior on large area MCP-PMT"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1503.02497","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":"sha256:54ee72ee331439ea3935aa56b069b701dce91275153ba833047c04605b05a493","target":"record","created_at":"2026-05-18T02:25:19Z","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":"99dd0dedfea0c41d996300a21f295ea48ab666424966504ce0654a3893bc6f2b","cross_cats_sorted":["hep-ex"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.ins-det","submitted_at":"2015-03-09T14:47:05Z","title_canon_sha256":"93bf5f3bdee584de9b1eabb76a40dadbb5c79fd00dfb285915525cacf09b602d"},"schema_version":"1.0","source":{"id":"1503.02497","kind":"arxiv","version":1}},"canonical_sha256":"02abdfc57730e9d7a91a2d5dd617bac25e3113a19a5d0f1f6c4f71ef006edd11","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"02abdfc57730e9d7a91a2d5dd617bac25e3113a19a5d0f1f6c4f71ef006edd11","first_computed_at":"2026-05-18T02:25:19.490914Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:25:19.490914Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"Wz1w7OWXPPX4dESVQzi65jtGh8p0l9PggtwS0t2Xz8HXf+FfRWY82zAVbBAkoOzZDiFKUoOKvJOn9tJdRsVfCQ==","signature_status":"signed_v1","signed_at":"2026-05-18T02:25:19.491251Z","signed_message":"canonical_sha256_bytes"},"source_id":"1503.02497","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:54ee72ee331439ea3935aa56b069b701dce91275153ba833047c04605b05a493","sha256:165c5f259dc73fd30d4472db26f2f641eb55c9581d0b176a68e03a77c2c9b268"],"state_sha256":"3fd27bced4d024fecc6cba45fbbaa69c31cedf35a134fe0d1b6fe5e8d03d2ea1"}