{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:1998:A2SX5SAKEM5U7Y4U65ALXNXK5A","short_pith_number":"pith:A2SX5SAK","canonical_record":{"source":{"id":"hep-ex/9805012","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"hep-ex","submitted_at":"1998-05-14T10:19:32Z","cross_cats_sorted":[],"title_canon_sha256":"e39e713c1b672743ddaa0017ca1ac9776f9d3ae097c2ec08f5537b29af23985e","abstract_canon_sha256":"3624137e0d35cafcdbdc88b8670b044c9bd0f9e7099fff50cabc7e985030f8fb"},"schema_version":"1.0"},"canonical_sha256":"06a57ec80a233b4fe394f740bbb6eae82d5705de70e856c21d7d357f0ce02a27","source":{"kind":"arxiv","id":"hep-ex/9805012","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"hep-ex/9805012","created_at":"2026-05-18T01:06:43Z"},{"alias_kind":"arxiv_version","alias_value":"hep-ex/9805012v1","created_at":"2026-05-18T01:06:43Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.hep-ex/9805012","created_at":"2026-05-18T01:06:43Z"},{"alias_kind":"pith_short_12","alias_value":"A2SX5SAKEM5U","created_at":"2026-05-18T12:25:49Z"},{"alias_kind":"pith_short_16","alias_value":"A2SX5SAKEM5U7Y4U","created_at":"2026-05-18T12:25:49Z"},{"alias_kind":"pith_short_8","alias_value":"A2SX5SAK","created_at":"2026-05-18T12:25:49Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:1998:A2SX5SAKEM5U7Y4U65ALXNXK5A","target":"record","payload":{"canonical_record":{"source":{"id":"hep-ex/9805012","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"hep-ex","submitted_at":"1998-05-14T10:19:32Z","cross_cats_sorted":[],"title_canon_sha256":"e39e713c1b672743ddaa0017ca1ac9776f9d3ae097c2ec08f5537b29af23985e","abstract_canon_sha256":"3624137e0d35cafcdbdc88b8670b044c9bd0f9e7099fff50cabc7e985030f8fb"},"schema_version":"1.0"},"canonical_sha256":"06a57ec80a233b4fe394f740bbb6eae82d5705de70e856c21d7d357f0ce02a27","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:06:43.326171Z","signature_b64":"gTHrfruFeQ/2IREOyuyYYMrJ8N+XpLPlATBjYXAQBEhVqpKsW8lY6KXzbZnJ5I9jfNa2hlCWgguwNDOm+5qTBA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"06a57ec80a233b4fe394f740bbb6eae82d5705de70e856c21d7d357f0ce02a27","last_reissued_at":"2026-05-18T01:06:43.325648Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:06:43.325648Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"hep-ex/9805012","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":"2026-05-18T01:06:43Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"uATeLVsDlOdu4ZD/ffRFLnpY5l38l0D4pyaWEMaBuMcCJdR59/meUVSc1GMmzbbMzvQENQ1T+gPJu9CiST4qCA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-05T06:11:41.242451Z"},"content_sha256":"3294316166c68dc39d22d0530af288923a89af2ea2acc4b19fc48b4210ef2e8c","schema_version":"1.0","event_id":"sha256:3294316166c68dc39d22d0530af288923a89af2ea2acc4b19fc48b4210ef2e8c"},{"event_type":"graph_snapshot","subject_pith_number":"pith:1998:A2SX5SAKEM5U7Y4U65ALXNXK5A","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Increased Sensitivity to Possible Muonium to Antimuonium Conversion","license":"","headline":"","cross_cats":[],"primary_cat":"hep-ex","authors_text":"((1) U. Heidelberg, (2) U. Z\\\"urich, (3) PSI, (4) JINR Dubna, (5) U. Tbilisi, (6) Yale), A. Grossmann(1), A. Korenchenko(4), A. Moiseenko(4), D. Mzavia(5), D. Renker(3), G. zu Putlitz(1), H.K. Walter(3), H.P. Wirtz(2), I. Kisel(4), I. Reinhard(1), J. Bagaturia(5), J. Merkel(1), K. Jungmann(1), K. Tr\\\"ager(1), L. Willmann(1), N. Kravchuk(4), N. Kuchinsky(4), P.V. Schmidt(1), R. Abela(3), R . Engfer(2), S. Korenchenko(4), T. Sakhelashvili(5), V. Karpuchin(4), V. Meyer(1), V.W. Hughes(6), W. Bertl(3)","submitted_at":"1998-05-14T10:19:32Z","abstract_excerpt":"A new experimental search for muonium-antimuonium conversion was conducted at the Paul Scherrer Institute, Villigen, Switzerland. The preliminary analysis yielded one event fulfilling all required criteria at an expected background of 1.7(2) events due to accidental coincidences. An upper limit for the conversion probability in 0.1 T magnetic field is extracted as $8 \\cdot 10^{-11}$ (90% CL)."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"hep-ex/9805012","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":"2026-05-18T01:06:43Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"tGEdLntk84/TRXs/xIRDqMJXkN8h0AzZchKBp6nvDSwzuEIBo7Dj7iEqVhsZclVwa/MN0nMX0BOvC+BGNXKPCA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-05T06:11:41.243068Z"},"content_sha256":"9f9fe204acd631662414d3ad922e519f313d06124e0f61903887136fb69cf1e2","schema_version":"1.0","event_id":"sha256:9f9fe204acd631662414d3ad922e519f313d06124e0f61903887136fb69cf1e2"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/A2SX5SAKEM5U7Y4U65ALXNXK5A/bundle.json","state_url":"https://pith.science/pith/A2SX5SAKEM5U7Y4U65ALXNXK5A/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/A2SX5SAKEM5U7Y4U65ALXNXK5A/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":"2026-06-05T06:11:41Z","links":{"resolver":"https://pith.science/pith/A2SX5SAKEM5U7Y4U65ALXNXK5A","bundle":"https://pith.science/pith/A2SX5SAKEM5U7Y4U65ALXNXK5A/bundle.json","state":"https://pith.science/pith/A2SX5SAKEM5U7Y4U65ALXNXK5A/state.json","well_known_bundle":"https://pith.science/.well-known/pith/A2SX5SAKEM5U7Y4U65ALXNXK5A/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:1998:A2SX5SAKEM5U7Y4U65ALXNXK5A","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":"3624137e0d35cafcdbdc88b8670b044c9bd0f9e7099fff50cabc7e985030f8fb","cross_cats_sorted":[],"license":"","primary_cat":"hep-ex","submitted_at":"1998-05-14T10:19:32Z","title_canon_sha256":"e39e713c1b672743ddaa0017ca1ac9776f9d3ae097c2ec08f5537b29af23985e"},"schema_version":"1.0","source":{"id":"hep-ex/9805012","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"hep-ex/9805012","created_at":"2026-05-18T01:06:43Z"},{"alias_kind":"arxiv_version","alias_value":"hep-ex/9805012v1","created_at":"2026-05-18T01:06:43Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.hep-ex/9805012","created_at":"2026-05-18T01:06:43Z"},{"alias_kind":"pith_short_12","alias_value":"A2SX5SAKEM5U","created_at":"2026-05-18T12:25:49Z"},{"alias_kind":"pith_short_16","alias_value":"A2SX5SAKEM5U7Y4U","created_at":"2026-05-18T12:25:49Z"},{"alias_kind":"pith_short_8","alias_value":"A2SX5SAK","created_at":"2026-05-18T12:25:49Z"}],"graph_snapshots":[{"event_id":"sha256:9f9fe204acd631662414d3ad922e519f313d06124e0f61903887136fb69cf1e2","target":"graph","created_at":"2026-05-18T01:06:43Z","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 new experimental search for muonium-antimuonium conversion was conducted at the Paul Scherrer Institute, Villigen, Switzerland. The preliminary analysis yielded one event fulfilling all required criteria at an expected background of 1.7(2) events due to accidental coincidences. An upper limit for the conversion probability in 0.1 T magnetic field is extracted as $8 \\cdot 10^{-11}$ (90% CL).","authors_text":"((1) U. Heidelberg, (2) U. Z\\\"urich, (3) PSI, (4) JINR Dubna, (5) U. Tbilisi, (6) Yale), A. Grossmann(1), A. Korenchenko(4), A. Moiseenko(4), D. Mzavia(5), D. Renker(3), G. zu Putlitz(1), H.K. Walter(3), H.P. Wirtz(2), I. Kisel(4), I. Reinhard(1), J. Bagaturia(5), J. Merkel(1), K. Jungmann(1), K. Tr\\\"ager(1), L. Willmann(1), N. Kravchuk(4), N. Kuchinsky(4), P.V. Schmidt(1), R. Abela(3), R . Engfer(2), S. Korenchenko(4), T. Sakhelashvili(5), V. Karpuchin(4), V. Meyer(1), V.W. Hughes(6), W. Bertl(3)","cross_cats":[],"headline":"","license":"","primary_cat":"hep-ex","submitted_at":"1998-05-14T10:19:32Z","title":"Increased Sensitivity to Possible Muonium to Antimuonium Conversion"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"hep-ex/9805012","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":"sha256:3294316166c68dc39d22d0530af288923a89af2ea2acc4b19fc48b4210ef2e8c","target":"record","created_at":"2026-05-18T01:06:43Z","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":"3624137e0d35cafcdbdc88b8670b044c9bd0f9e7099fff50cabc7e985030f8fb","cross_cats_sorted":[],"license":"","primary_cat":"hep-ex","submitted_at":"1998-05-14T10:19:32Z","title_canon_sha256":"e39e713c1b672743ddaa0017ca1ac9776f9d3ae097c2ec08f5537b29af23985e"},"schema_version":"1.0","source":{"id":"hep-ex/9805012","kind":"arxiv","version":1}},"canonical_sha256":"06a57ec80a233b4fe394f740bbb6eae82d5705de70e856c21d7d357f0ce02a27","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"06a57ec80a233b4fe394f740bbb6eae82d5705de70e856c21d7d357f0ce02a27","first_computed_at":"2026-05-18T01:06:43.325648Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:06:43.325648Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"gTHrfruFeQ/2IREOyuyYYMrJ8N+XpLPlATBjYXAQBEhVqpKsW8lY6KXzbZnJ5I9jfNa2hlCWgguwNDOm+5qTBA==","signature_status":"signed_v1","signed_at":"2026-05-18T01:06:43.326171Z","signed_message":"canonical_sha256_bytes"},"source_id":"hep-ex/9805012","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:3294316166c68dc39d22d0530af288923a89af2ea2acc4b19fc48b4210ef2e8c","sha256:9f9fe204acd631662414d3ad922e519f313d06124e0f61903887136fb69cf1e2"],"state_sha256":"16aec2f17ffb5e30456d4ddca992b329d04d73428de4998d80d6e8f7c35cca7d"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"PDhuEIDW6/cSzepSuqnny6vlrCThbyt8PUTJTeIpV9cNgmOjrQlqG+Kfo2W0YX/67AX1t83L16NkPim60UXDCw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-05T06:11:41.246546Z","bundle_sha256":"212ce8960f116694d34528fd1da2e018be5d0b9414d22f8eff89ec9d0ad30937"}}