{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2018:SQIRH2PA2SQQSAQBZTIYXFDO67","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":"b70aa257383587d8a2b315c6efc453fd395d4a6f5a6eb97450de9efcf77cb540","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.ins-det","submitted_at":"2018-08-23T16:21:19Z","title_canon_sha256":"4ed04435610dd3972481145475f4d01956a34bd14cf63f149fb123aaf04aba23"},"schema_version":"1.0","source":{"id":"1808.07824","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1808.07824","created_at":"2026-05-17T23:47:30Z"},{"alias_kind":"arxiv_version","alias_value":"1808.07824v1","created_at":"2026-05-17T23:47:30Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1808.07824","created_at":"2026-05-17T23:47:30Z"},{"alias_kind":"pith_short_12","alias_value":"SQIRH2PA2SQQ","created_at":"2026-05-18T12:32:53Z"},{"alias_kind":"pith_short_16","alias_value":"SQIRH2PA2SQQSAQB","created_at":"2026-05-18T12:32:53Z"},{"alias_kind":"pith_short_8","alias_value":"SQIRH2PA","created_at":"2026-05-18T12:32:53Z"}],"graph_snapshots":[{"event_id":"sha256:26a9a9456ed484ccc10c3931b7268dd8bcd6a08b3c77c93e242985e6073818dc","target":"graph","created_at":"2026-05-17T23:47:30Z","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":"The motivation of this paper is to explore the parameters that affect the performance of Microchannel Plate Photomultiplier Tubes (MCP-PMTs) in magnetic fields with the goal to guide their design to achieve a high magnetic field tolerance. MCP-PMTs based on two different designs were tested.The magnetic field tolerance of MCP-PMT based on a design providing independently biased voltages showed a significant improvement (up to 0.7 T) compared to the one utilizing an internal resistor chain design (up to 0.1 T), indicating the importance of individually adjustable voltages. The effects of the ro","authors_text":"Carl Zorn, Edward May, Jose Repond, Junqi Xie, Kawtar Hafidi, Lei Xia, Marcel Demarteau, Mickey Chiu, Mohammad Hattawy, Robert Wagner","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.ins-det","submitted_at":"2018-08-23T16:21:19Z","title":"Characteristics of fast timing MCP-PMTs in magnetic fields"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1808.07824","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":"sha256:6b22a71ad9b524b14f50d9d794ce6be701548e6b9e8cbdc0fb553af424905a8e","target":"record","created_at":"2026-05-17T23:47:30Z","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":"b70aa257383587d8a2b315c6efc453fd395d4a6f5a6eb97450de9efcf77cb540","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.ins-det","submitted_at":"2018-08-23T16:21:19Z","title_canon_sha256":"4ed04435610dd3972481145475f4d01956a34bd14cf63f149fb123aaf04aba23"},"schema_version":"1.0","source":{"id":"1808.07824","kind":"arxiv","version":1}},"canonical_sha256":"941113e9e0d4a1090201ccd18b946ef7e8e14c2f24501ee1cec1f23581188ec6","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"941113e9e0d4a1090201ccd18b946ef7e8e14c2f24501ee1cec1f23581188ec6","first_computed_at":"2026-05-17T23:47:30.500039Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-17T23:47:30.500039Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"TgWq3dtzW6tvBR2/UxJeBfq+cizk59ephixhbvUrOLOLAm+BVMS+x3us4RNIJcZ6nSpMCWvAlRLz4spaTU6GCg==","signature_status":"signed_v1","signed_at":"2026-05-17T23:47:30.500497Z","signed_message":"canonical_sha256_bytes"},"source_id":"1808.07824","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:6b22a71ad9b524b14f50d9d794ce6be701548e6b9e8cbdc0fb553af424905a8e","sha256:26a9a9456ed484ccc10c3931b7268dd8bcd6a08b3c77c93e242985e6073818dc"],"state_sha256":"68b7f8033e4831cf68bfaf653725d53b385bb4a383688729e14a1423d4b787f5"}