{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2014:PFWCRZRMLXVEF2K6HI5UF6WGAN","short_pith_number":"pith:PFWCRZRM","canonical_record":{"source":{"id":"1411.6707","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.ins-det","submitted_at":"2014-11-25T02:49:37Z","cross_cats_sorted":["hep-ex","nucl-ex"],"title_canon_sha256":"f8c6fac91f701d481dad675ca9808248bad90f2f127aed6837db07c733e8e2de","abstract_canon_sha256":"08a37f25bb0e9e5438eeecbf67b03995ae2627b55c21a5fd6f3a924c368c33cf"},"schema_version":"1.0"},"canonical_sha256":"796c28e62c5dea42e95e3a3b42fac6037184afcc8b4602a90e7e66c7320599f7","source":{"kind":"arxiv","id":"1411.6707","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1411.6707","created_at":"2026-05-18T02:32:47Z"},{"alias_kind":"arxiv_version","alias_value":"1411.6707v1","created_at":"2026-05-18T02:32:47Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1411.6707","created_at":"2026-05-18T02:32:47Z"},{"alias_kind":"pith_short_12","alias_value":"PFWCRZRMLXVE","created_at":"2026-05-18T12:28:43Z"},{"alias_kind":"pith_short_16","alias_value":"PFWCRZRMLXVEF2K6","created_at":"2026-05-18T12:28:43Z"},{"alias_kind":"pith_short_8","alias_value":"PFWCRZRM","created_at":"2026-05-18T12:28:43Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2014:PFWCRZRMLXVEF2K6HI5UF6WGAN","target":"record","payload":{"canonical_record":{"source":{"id":"1411.6707","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.ins-det","submitted_at":"2014-11-25T02:49:37Z","cross_cats_sorted":["hep-ex","nucl-ex"],"title_canon_sha256":"f8c6fac91f701d481dad675ca9808248bad90f2f127aed6837db07c733e8e2de","abstract_canon_sha256":"08a37f25bb0e9e5438eeecbf67b03995ae2627b55c21a5fd6f3a924c368c33cf"},"schema_version":"1.0"},"canonical_sha256":"796c28e62c5dea42e95e3a3b42fac6037184afcc8b4602a90e7e66c7320599f7","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:32:47.527982Z","signature_b64":"DsVI6RXr3AhudzqAW8ncXs7T7qFNYe+IBlUDPAEUx2YKLZ10DbTKJ6vhI95LCGLTI//6Hir8YqGhoEMXR6yiAA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"796c28e62c5dea42e95e3a3b42fac6037184afcc8b4602a90e7e66c7320599f7","last_reissued_at":"2026-05-18T02:32:47.527335Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:32:47.527335Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1411.6707","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":"2026-05-18T02:32:47Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"OgA3YBgzREZ0LSDZomJxQp01+Tnp4Uo3c6U/mVNInxJM4e1KbsQ8NNIg2GSHLH+pgH8PihoPRcaPVqFbIx6FDg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-02T03:43:23.158175Z"},"content_sha256":"877e41d5f3344f9e28865d58241258c6159359ecdf79f850ee92abe015e3dba0","schema_version":"1.0","event_id":"sha256:877e41d5f3344f9e28865d58241258c6159359ecdf79f850ee92abe015e3dba0"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2014:PFWCRZRMLXVEF2K6HI5UF6WGAN","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Progress in developing a spiral fiber tracker for the J-PARC E36 experiment","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["hep-ex","nucl-ex"],"primary_cat":"physics.ins-det","authors_text":"Akihisa Toyoda, Alexander Ivashkin, Hideyuki Kawai, Hirohito Yamazaki, Hiroshi Ito, Jun Imazato, Keito Horie, Makoto Tabata, Oleg Mineev, Suguru Shimizu, Youichi Igarashi, Yury Kudenko","submitted_at":"2014-11-25T02:49:37Z","abstract_excerpt":"This paper reports the recent progress made in developing a spiral fiber tracker (SFT) for use in the E36 experiment scheduled at the Japan Proton Accelerator Research Complex (J-PARC). The primary goal of this positive kaon decay experiment, which uses a stopped kaon beam, is to test lepton flavor universality to search for physics beyond the Standard Model of particle physics. For this experiment, we are currently upgrading the E246 apparatus, which consists of the superconducting toroidal spectrometer previously used at the High Energy Accelerator Research Organization (KEK), Japan. Conduct"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1411.6707","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":"2026-05-18T02:32:47Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"K01voEkY71oWd8xZ9bKQnUhAt3XQDkf7WefaQKYxFd55PvtIpNPZfU32u5NJbOb3wf5LDlJECWZK6yexE0TvCQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-02T03:43:23.158546Z"},"content_sha256":"458cea494cbe35c234005e3621ef005ece44f298acfff7587b1d6a3c73ff6baf","schema_version":"1.0","event_id":"sha256:458cea494cbe35c234005e3621ef005ece44f298acfff7587b1d6a3c73ff6baf"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/PFWCRZRMLXVEF2K6HI5UF6WGAN/bundle.json","state_url":"https://pith.science/pith/PFWCRZRMLXVEF2K6HI5UF6WGAN/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/PFWCRZRMLXVEF2K6HI5UF6WGAN/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":"2026-06-02T03:43:23Z","links":{"resolver":"https://pith.science/pith/PFWCRZRMLXVEF2K6HI5UF6WGAN","bundle":"https://pith.science/pith/PFWCRZRMLXVEF2K6HI5UF6WGAN/bundle.json","state":"https://pith.science/pith/PFWCRZRMLXVEF2K6HI5UF6WGAN/state.json","well_known_bundle":"https://pith.science/.well-known/pith/PFWCRZRMLXVEF2K6HI5UF6WGAN/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2014:PFWCRZRMLXVEF2K6HI5UF6WGAN","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":"08a37f25bb0e9e5438eeecbf67b03995ae2627b55c21a5fd6f3a924c368c33cf","cross_cats_sorted":["hep-ex","nucl-ex"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.ins-det","submitted_at":"2014-11-25T02:49:37Z","title_canon_sha256":"f8c6fac91f701d481dad675ca9808248bad90f2f127aed6837db07c733e8e2de"},"schema_version":"1.0","source":{"id":"1411.6707","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1411.6707","created_at":"2026-05-18T02:32:47Z"},{"alias_kind":"arxiv_version","alias_value":"1411.6707v1","created_at":"2026-05-18T02:32:47Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1411.6707","created_at":"2026-05-18T02:32:47Z"},{"alias_kind":"pith_short_12","alias_value":"PFWCRZRMLXVE","created_at":"2026-05-18T12:28:43Z"},{"alias_kind":"pith_short_16","alias_value":"PFWCRZRMLXVEF2K6","created_at":"2026-05-18T12:28:43Z"},{"alias_kind":"pith_short_8","alias_value":"PFWCRZRM","created_at":"2026-05-18T12:28:43Z"}],"graph_snapshots":[{"event_id":"sha256:458cea494cbe35c234005e3621ef005ece44f298acfff7587b1d6a3c73ff6baf","target":"graph","created_at":"2026-05-18T02:32:47Z","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":"This paper reports the recent progress made in developing a spiral fiber tracker (SFT) for use in the E36 experiment scheduled at the Japan Proton Accelerator Research Complex (J-PARC). The primary goal of this positive kaon decay experiment, which uses a stopped kaon beam, is to test lepton flavor universality to search for physics beyond the Standard Model of particle physics. For this experiment, we are currently upgrading the E246 apparatus, which consists of the superconducting toroidal spectrometer previously used at the High Energy Accelerator Research Organization (KEK), Japan. Conduct","authors_text":"Akihisa Toyoda, Alexander Ivashkin, Hideyuki Kawai, Hirohito Yamazaki, Hiroshi Ito, Jun Imazato, Keito Horie, Makoto Tabata, Oleg Mineev, Suguru Shimizu, Youichi Igarashi, Yury Kudenko","cross_cats":["hep-ex","nucl-ex"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.ins-det","submitted_at":"2014-11-25T02:49:37Z","title":"Progress in developing a spiral fiber tracker for the J-PARC E36 experiment"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1411.6707","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":"sha256:877e41d5f3344f9e28865d58241258c6159359ecdf79f850ee92abe015e3dba0","target":"record","created_at":"2026-05-18T02:32:47Z","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":"08a37f25bb0e9e5438eeecbf67b03995ae2627b55c21a5fd6f3a924c368c33cf","cross_cats_sorted":["hep-ex","nucl-ex"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.ins-det","submitted_at":"2014-11-25T02:49:37Z","title_canon_sha256":"f8c6fac91f701d481dad675ca9808248bad90f2f127aed6837db07c733e8e2de"},"schema_version":"1.0","source":{"id":"1411.6707","kind":"arxiv","version":1}},"canonical_sha256":"796c28e62c5dea42e95e3a3b42fac6037184afcc8b4602a90e7e66c7320599f7","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"796c28e62c5dea42e95e3a3b42fac6037184afcc8b4602a90e7e66c7320599f7","first_computed_at":"2026-05-18T02:32:47.527335Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:32:47.527335Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"DsVI6RXr3AhudzqAW8ncXs7T7qFNYe+IBlUDPAEUx2YKLZ10DbTKJ6vhI95LCGLTI//6Hir8YqGhoEMXR6yiAA==","signature_status":"signed_v1","signed_at":"2026-05-18T02:32:47.527982Z","signed_message":"canonical_sha256_bytes"},"source_id":"1411.6707","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:877e41d5f3344f9e28865d58241258c6159359ecdf79f850ee92abe015e3dba0","sha256:458cea494cbe35c234005e3621ef005ece44f298acfff7587b1d6a3c73ff6baf"],"state_sha256":"d1bc9030997f9ea6eb0604f37a20a23a2baa800aa31ae89ab64b85f36b357e03"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"bWT39cGQzzXHhi4Q3KBljHOP1Ztb6ROYxZ+JyV8/71au1rbvMkod3cyfK4tJAPmgyx/GnM2Vy/HKuKfGJdKxAw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-02T03:43:23.160575Z","bundle_sha256":"bbefbf9a923a36d365f83ba08496d3083bbdc80f221336193255190b6c38a724"}}