{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2021:QNI72GVK753R2TI5MB5CNEPY6L","short_pith_number":"pith:QNI72GVK","canonical_record":{"source":{"id":"2109.10093","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2021-09-21T10:55:03Z","cross_cats_sorted":["hep-ex"],"title_canon_sha256":"a697e046cebc2949ba04a95d77a95d2c95444f6f9c94f5f279f925ec83266fca","abstract_canon_sha256":"4251fdabff567f6d2970975afdc65f13bcdeaaf71bd8158770feb09994832eb1"},"schema_version":"1.0"},"canonical_sha256":"8351fd1aaaff771d4d1d607a2691f8f2e893e16e457f1f40411b4f2b633ebce1","source":{"kind":"arxiv","id":"2109.10093","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2109.10093","created_at":"2026-07-05T05:05:27Z"},{"alias_kind":"arxiv_version","alias_value":"2109.10093v2","created_at":"2026-07-05T05:05:27Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2109.10093","created_at":"2026-07-05T05:05:27Z"},{"alias_kind":"pith_short_12","alias_value":"QNI72GVK753R","created_at":"2026-07-05T05:05:27Z"},{"alias_kind":"pith_short_16","alias_value":"QNI72GVK753R2TI5","created_at":"2026-07-05T05:05:27Z"},{"alias_kind":"pith_short_8","alias_value":"QNI72GVK","created_at":"2026-07-05T05:05:27Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2021:QNI72GVK753R2TI5MB5CNEPY6L","target":"record","payload":{"canonical_record":{"source":{"id":"2109.10093","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2021-09-21T10:55:03Z","cross_cats_sorted":["hep-ex"],"title_canon_sha256":"a697e046cebc2949ba04a95d77a95d2c95444f6f9c94f5f279f925ec83266fca","abstract_canon_sha256":"4251fdabff567f6d2970975afdc65f13bcdeaaf71bd8158770feb09994832eb1"},"schema_version":"1.0"},"canonical_sha256":"8351fd1aaaff771d4d1d607a2691f8f2e893e16e457f1f40411b4f2b633ebce1","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T05:05:27.639675Z","signature_b64":"kE7q88PU1AMPQG4kPD4g4K+QRz+57rXPRDaKfMeAj/GB6wkgd8RXuLYVr+FhKHcVUg6qYqY7hiiIb7WYDxLVAg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"8351fd1aaaff771d4d1d607a2691f8f2e893e16e457f1f40411b4f2b633ebce1","last_reissued_at":"2026-07-05T05:05:27.639210Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T05:05:27.639210Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2109.10093","source_version":2,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-07-05T05:05:27Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"f1CFXizHt0gIWs8ylK8tFfkEwFXMHnTLFWA+jZiDo/ZwjWlnDQGD8sfOPSX1SOUctVr/ncFddEe8T/16k6JLCg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-05T23:32:56.750674Z"},"content_sha256":"d887ad79a95297efe5ffff1f07ea1bacf5e2c40f0c14608f1c1c8bd81a490c42","schema_version":"1.0","event_id":"sha256:d887ad79a95297efe5ffff1f07ea1bacf5e2c40f0c14608f1c1c8bd81a490c42"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2021:QNI72GVK753R2TI5MB5CNEPY6L","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Probing the $L_\\mu$-$L_\\tau$ Gauge Boson at the MUonE Experiment","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["hep-ex"],"primary_cat":"hep-ph","authors_text":"Juntaro Wada, Kento Asai, Koichi Hamaguchi, Natsumi Nagata, Shih-Yen Tseng","submitted_at":"2021-09-21T10:55:03Z","abstract_excerpt":"We discuss the prospects of probing the $L_\\mu - L_\\tau$ gauge boson at the MUonE experiment. The $L_\\mu - L_\\tau$ gauge boson $Z^\\prime$ with a mass of $\\lesssim 200$ MeV, which can explain the discrepancy between the measured value of the muon $g-2$ and the value calculated in the Standard Model, can be produced at the MUonE experiment through the process $\\mu e \\to \\mu e Z^\\prime$. The $Z^\\prime$ in the final state decays into a pair of neutrinos, and therefore we cannot observe the decay of $Z^\\prime$ directly. It is, however, still possible to probe this signature by searching for events "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2109.10093","kind":"arxiv","version":2},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2109.10093/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"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":"2026-07-05T05:05:27Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"DhrRW0sYGUHw03k9nzh0WwiZU7YeXfEXsscFH0klE+75iFwnoQhoT3pKAwumB+SJczh0KxZFy1igZBiJM0tCCA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-05T23:32:56.751179Z"},"content_sha256":"72291f5c32331abf3b21988366e0c004e81821c5ad45b7b463b34af6d0cf2229","schema_version":"1.0","event_id":"sha256:72291f5c32331abf3b21988366e0c004e81821c5ad45b7b463b34af6d0cf2229"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/QNI72GVK753R2TI5MB5CNEPY6L/bundle.json","state_url":"https://pith.science/pith/QNI72GVK753R2TI5MB5CNEPY6L/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/QNI72GVK753R2TI5MB5CNEPY6L/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":"2026-08-05T23:32:56Z","links":{"resolver":"https://pith.science/pith/QNI72GVK753R2TI5MB5CNEPY6L","bundle":"https://pith.science/pith/QNI72GVK753R2TI5MB5CNEPY6L/bundle.json","state":"https://pith.science/pith/QNI72GVK753R2TI5MB5CNEPY6L/state.json","well_known_bundle":"https://pith.science/.well-known/pith/QNI72GVK753R2TI5MB5CNEPY6L/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2021:QNI72GVK753R2TI5MB5CNEPY6L","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":"4251fdabff567f6d2970975afdc65f13bcdeaaf71bd8158770feb09994832eb1","cross_cats_sorted":["hep-ex"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2021-09-21T10:55:03Z","title_canon_sha256":"a697e046cebc2949ba04a95d77a95d2c95444f6f9c94f5f279f925ec83266fca"},"schema_version":"1.0","source":{"id":"2109.10093","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2109.10093","created_at":"2026-07-05T05:05:27Z"},{"alias_kind":"arxiv_version","alias_value":"2109.10093v2","created_at":"2026-07-05T05:05:27Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2109.10093","created_at":"2026-07-05T05:05:27Z"},{"alias_kind":"pith_short_12","alias_value":"QNI72GVK753R","created_at":"2026-07-05T05:05:27Z"},{"alias_kind":"pith_short_16","alias_value":"QNI72GVK753R2TI5","created_at":"2026-07-05T05:05:27Z"},{"alias_kind":"pith_short_8","alias_value":"QNI72GVK","created_at":"2026-07-05T05:05:27Z"}],"graph_snapshots":[{"event_id":"sha256:72291f5c32331abf3b21988366e0c004e81821c5ad45b7b463b34af6d0cf2229","target":"graph","created_at":"2026-07-05T05:05:27Z","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"},"integrity":{"available":true,"clean":true,"detectors_run":[],"endpoint":"/pith/2109.10093/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We discuss the prospects of probing the $L_\\mu - L_\\tau$ gauge boson at the MUonE experiment. The $L_\\mu - L_\\tau$ gauge boson $Z^\\prime$ with a mass of $\\lesssim 200$ MeV, which can explain the discrepancy between the measured value of the muon $g-2$ and the value calculated in the Standard Model, can be produced at the MUonE experiment through the process $\\mu e \\to \\mu e Z^\\prime$. The $Z^\\prime$ in the final state decays into a pair of neutrinos, and therefore we cannot observe the decay of $Z^\\prime$ directly. It is, however, still possible to probe this signature by searching for events ","authors_text":"Juntaro Wada, Kento Asai, Koichi Hamaguchi, Natsumi Nagata, Shih-Yen Tseng","cross_cats":["hep-ex"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2021-09-21T10:55:03Z","title":"Probing the $L_\\mu$-$L_\\tau$ Gauge Boson at the MUonE Experiment"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2109.10093","kind":"arxiv","version":2},"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:d887ad79a95297efe5ffff1f07ea1bacf5e2c40f0c14608f1c1c8bd81a490c42","target":"record","created_at":"2026-07-05T05:05:27Z","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":"4251fdabff567f6d2970975afdc65f13bcdeaaf71bd8158770feb09994832eb1","cross_cats_sorted":["hep-ex"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2021-09-21T10:55:03Z","title_canon_sha256":"a697e046cebc2949ba04a95d77a95d2c95444f6f9c94f5f279f925ec83266fca"},"schema_version":"1.0","source":{"id":"2109.10093","kind":"arxiv","version":2}},"canonical_sha256":"8351fd1aaaff771d4d1d607a2691f8f2e893e16e457f1f40411b4f2b633ebce1","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"8351fd1aaaff771d4d1d607a2691f8f2e893e16e457f1f40411b4f2b633ebce1","first_computed_at":"2026-07-05T05:05:27.639210Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T05:05:27.639210Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"kE7q88PU1AMPQG4kPD4g4K+QRz+57rXPRDaKfMeAj/GB6wkgd8RXuLYVr+FhKHcVUg6qYqY7hiiIb7WYDxLVAg==","signature_status":"signed_v1","signed_at":"2026-07-05T05:05:27.639675Z","signed_message":"canonical_sha256_bytes"},"source_id":"2109.10093","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:d887ad79a95297efe5ffff1f07ea1bacf5e2c40f0c14608f1c1c8bd81a490c42","sha256:72291f5c32331abf3b21988366e0c004e81821c5ad45b7b463b34af6d0cf2229"],"state_sha256":"860f2d6596888f1eacf9d4e39a4f0ac069664bb2437a19433c06310b22778b18"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"qLAp51WgqMDSWladmXyCnZATRUd0QJmbJoGP5Pl1mW1nuO3rQLBR3dhHV5/06xalwT+y76C1aid0KhzmGDdCAg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-05T23:32:56.755981Z","bundle_sha256":"9c8e362a0ee42bb37c1f7ca2330f542ea56f730370ba7873295aa20e894e72bd"}}