{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2020:44XRPJDBOWQA3PVDC6WNQF7CV6","short_pith_number":"pith:44XRPJDB","canonical_record":{"source":{"id":"2004.05862","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ex","submitted_at":"2020-04-13T10:50:28Z","cross_cats_sorted":["physics.atom-ph","physics.ins-det"],"title_canon_sha256":"45e7173812ff6206636058dd4c22e496f292fe43a494dbd0dbe8618d50ea5bf9","abstract_canon_sha256":"29776cb874a9f9de3dd2aebf6a22b053836d2e492e2ee41c9a7d88c49c7829fe"},"schema_version":"1.0"},"canonical_sha256":"e72f17a46175a00dbea317acd817e2afb567899b850b35989cc532e0f34aa1be","source":{"kind":"arxiv","id":"2004.05862","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2004.05862","created_at":"2026-07-05T02:19:26Z"},{"alias_kind":"arxiv_version","alias_value":"2004.05862v2","created_at":"2026-07-05T02:19:26Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2004.05862","created_at":"2026-07-05T02:19:26Z"},{"alias_kind":"pith_short_12","alias_value":"44XRPJDBOWQA","created_at":"2026-07-05T02:19:26Z"},{"alias_kind":"pith_short_16","alias_value":"44XRPJDBOWQA3PVD","created_at":"2026-07-05T02:19:26Z"},{"alias_kind":"pith_short_8","alias_value":"44XRPJDB","created_at":"2026-07-05T02:19:26Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2020:44XRPJDBOWQA3PVDC6WNQF7CV6","target":"record","payload":{"canonical_record":{"source":{"id":"2004.05862","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ex","submitted_at":"2020-04-13T10:50:28Z","cross_cats_sorted":["physics.atom-ph","physics.ins-det"],"title_canon_sha256":"45e7173812ff6206636058dd4c22e496f292fe43a494dbd0dbe8618d50ea5bf9","abstract_canon_sha256":"29776cb874a9f9de3dd2aebf6a22b053836d2e492e2ee41c9a7d88c49c7829fe"},"schema_version":"1.0"},"canonical_sha256":"e72f17a46175a00dbea317acd817e2afb567899b850b35989cc532e0f34aa1be","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T02:19:26.883286Z","signature_b64":"qLerwW4K+Nz+Bb/m+4edV0YJ03cqPx/dJzYjBTqaZW1AVAoBTFPhsipROvaOx0xkjwXWsCimggCMuo3Ol/2kBw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"e72f17a46175a00dbea317acd817e2afb567899b850b35989cc532e0f34aa1be","last_reissued_at":"2026-07-05T02:19:26.882854Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T02:19:26.882854Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2004.05862","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":"2026-07-05T02:19:26Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"xZOesbUEyTw9ANwWKaATCRcdWWdn7z+7NxBF7H6Had7dNqfNoRaYyY0oFqxWyqNJ/CQuq52UdDytemMPASuxAg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-05T20:50:26.797772Z"},"content_sha256":"d6cca35ead8ff3a62c51a06f2a47c2786ab3ee2bfffc78cc629d8f9624eaa450","schema_version":"1.0","event_id":"sha256:d6cca35ead8ff3a62c51a06f2a47c2786ab3ee2bfffc78cc629d8f9624eaa450"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2020:44XRPJDBOWQA3PVDC6WNQF7CV6","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"New precise spectroscopy of the hyperfine structure in muonium with a high-intensity pulsed muon beam","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["physics.atom-ph","physics.ins-det"],"primary_cat":"hep-ex","authors_text":"A. Toyoda, D. Kawall, H. A. Torii, K. Ishida, K. M. Kojima, K. Shimomura, K. S. Tanaka, M. Iwasaki, N. Kawamura, N. Kurosawa, N. Saito, P. Strasser, S. Kanda, S. Nishimura, S. Seo, T. Mibe, T. Tanaka, Y. Fukao, Y. Ikedo, Y. Matsuda, Y. Miyake, Y. Sato, Y. Ueno","submitted_at":"2020-04-13T10:50:28Z","abstract_excerpt":"A hydrogen-like atom consisting of a positive muon and an electron is known as muonium. It is a near-ideal two-body system for a precision test of bound-state theory and fundamental symmetries. The MuSEUM collaboration performed a new precision measurement of the muonium ground-state hyperfine structure at J-PARC using a high-intensity pulsed muon beam and a high-rate capable positron counter. The resonance of hyperfine transition was successfully observed at a near-zero magnetic field, and the muonium hyperfine structure interval of ${\\nu}_{\\text{HFS}}$ = 4.463302(4) GHz was obtained with a r"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2004.05862","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/2004.05862/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":"2026-07-05T02:19:26Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"MQn/Aplhbpr08pG5k3Mf8+BYhHxHjF2S24ElCxo+HmUymDtxyRHHpSQxVed8p4DOsCu75dfvRYaNTM/XRtZUCA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-05T20:50:26.798681Z"},"content_sha256":"c0f293bd4805716883ba24736ce7d1193b658875d039fa63981fb27b786b21e0","schema_version":"1.0","event_id":"sha256:c0f293bd4805716883ba24736ce7d1193b658875d039fa63981fb27b786b21e0"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/44XRPJDBOWQA3PVDC6WNQF7CV6/bundle.json","state_url":"https://pith.science/pith/44XRPJDBOWQA3PVDC6WNQF7CV6/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/44XRPJDBOWQA3PVDC6WNQF7CV6/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":"2026-08-05T20:50:26Z","links":{"resolver":"https://pith.science/pith/44XRPJDBOWQA3PVDC6WNQF7CV6","bundle":"https://pith.science/pith/44XRPJDBOWQA3PVDC6WNQF7CV6/bundle.json","state":"https://pith.science/pith/44XRPJDBOWQA3PVDC6WNQF7CV6/state.json","well_known_bundle":"https://pith.science/.well-known/pith/44XRPJDBOWQA3PVDC6WNQF7CV6/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2020:44XRPJDBOWQA3PVDC6WNQF7CV6","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":"29776cb874a9f9de3dd2aebf6a22b053836d2e492e2ee41c9a7d88c49c7829fe","cross_cats_sorted":["physics.atom-ph","physics.ins-det"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ex","submitted_at":"2020-04-13T10:50:28Z","title_canon_sha256":"45e7173812ff6206636058dd4c22e496f292fe43a494dbd0dbe8618d50ea5bf9"},"schema_version":"1.0","source":{"id":"2004.05862","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2004.05862","created_at":"2026-07-05T02:19:26Z"},{"alias_kind":"arxiv_version","alias_value":"2004.05862v2","created_at":"2026-07-05T02:19:26Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2004.05862","created_at":"2026-07-05T02:19:26Z"},{"alias_kind":"pith_short_12","alias_value":"44XRPJDBOWQA","created_at":"2026-07-05T02:19:26Z"},{"alias_kind":"pith_short_16","alias_value":"44XRPJDBOWQA3PVD","created_at":"2026-07-05T02:19:26Z"},{"alias_kind":"pith_short_8","alias_value":"44XRPJDB","created_at":"2026-07-05T02:19:26Z"}],"graph_snapshots":[{"event_id":"sha256:c0f293bd4805716883ba24736ce7d1193b658875d039fa63981fb27b786b21e0","target":"graph","created_at":"2026-07-05T02:19:26Z","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/2004.05862/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"A hydrogen-like atom consisting of a positive muon and an electron is known as muonium. It is a near-ideal two-body system for a precision test of bound-state theory and fundamental symmetries. The MuSEUM collaboration performed a new precision measurement of the muonium ground-state hyperfine structure at J-PARC using a high-intensity pulsed muon beam and a high-rate capable positron counter. The resonance of hyperfine transition was successfully observed at a near-zero magnetic field, and the muonium hyperfine structure interval of ${\\nu}_{\\text{HFS}}$ = 4.463302(4) GHz was obtained with a r","authors_text":"A. Toyoda, D. Kawall, H. A. Torii, K. Ishida, K. M. Kojima, K. Shimomura, K. S. Tanaka, M. Iwasaki, N. Kawamura, N. Kurosawa, N. Saito, P. Strasser, S. Kanda, S. Nishimura, S. Seo, T. Mibe, T. Tanaka, Y. Fukao, Y. Ikedo, Y. Matsuda, Y. Miyake, Y. Sato, Y. Ueno","cross_cats":["physics.atom-ph","physics.ins-det"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ex","submitted_at":"2020-04-13T10:50:28Z","title":"New precise spectroscopy of the hyperfine structure in muonium with a high-intensity pulsed muon beam"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2004.05862","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:d6cca35ead8ff3a62c51a06f2a47c2786ab3ee2bfffc78cc629d8f9624eaa450","target":"record","created_at":"2026-07-05T02:19:26Z","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":"29776cb874a9f9de3dd2aebf6a22b053836d2e492e2ee41c9a7d88c49c7829fe","cross_cats_sorted":["physics.atom-ph","physics.ins-det"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ex","submitted_at":"2020-04-13T10:50:28Z","title_canon_sha256":"45e7173812ff6206636058dd4c22e496f292fe43a494dbd0dbe8618d50ea5bf9"},"schema_version":"1.0","source":{"id":"2004.05862","kind":"arxiv","version":2}},"canonical_sha256":"e72f17a46175a00dbea317acd817e2afb567899b850b35989cc532e0f34aa1be","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"e72f17a46175a00dbea317acd817e2afb567899b850b35989cc532e0f34aa1be","first_computed_at":"2026-07-05T02:19:26.882854Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T02:19:26.882854Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"qLerwW4K+Nz+Bb/m+4edV0YJ03cqPx/dJzYjBTqaZW1AVAoBTFPhsipROvaOx0xkjwXWsCimggCMuo3Ol/2kBw==","signature_status":"signed_v1","signed_at":"2026-07-05T02:19:26.883286Z","signed_message":"canonical_sha256_bytes"},"source_id":"2004.05862","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:d6cca35ead8ff3a62c51a06f2a47c2786ab3ee2bfffc78cc629d8f9624eaa450","sha256:c0f293bd4805716883ba24736ce7d1193b658875d039fa63981fb27b786b21e0"],"state_sha256":"78ece9835b49a7c994e9f4b6d0296ea97d11dad4c4acb7ceb857990c9c45cec4"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"AFrVypy+tbH8+/HaLf6y/BMmaDSghUCkAu34zb0gDwNlkUkAcQaicPGy8E9c7DErAblXzyoBa00PQIgdAdnbBw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-05T20:50:26.810330Z","bundle_sha256":"ed31dbe960719357d0f9c354f5c128955e344c50bf04931cc0f181aead73c1c5"}}