{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2017:JKX3KGLQ6YCUYPBLMJY6FNGD64","short_pith_number":"pith:JKX3KGLQ","canonical_record":{"source":{"id":"1707.02184","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ex","submitted_at":"2017-07-07T14:02:40Z","cross_cats_sorted":["nucl-ex"],"title_canon_sha256":"f5e3ae545d18a3751245ab6dd8acc32947f068a4b216ef1c94a7fe187c8221b8","abstract_canon_sha256":"996c58c3f519c548d81862e7a3317bb340fda66442096be1693dabbd5324877a"},"schema_version":"1.0"},"canonical_sha256":"4aafb51970f6054c3c2b6271e2b4c3f71647bc97b47df3a6113067c2caeb74fd","source":{"kind":"arxiv","id":"1707.02184","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1707.02184","created_at":"2026-05-18T00:34:17Z"},{"alias_kind":"arxiv_version","alias_value":"1707.02184v2","created_at":"2026-05-18T00:34:17Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1707.02184","created_at":"2026-05-18T00:34:17Z"},{"alias_kind":"pith_short_12","alias_value":"JKX3KGLQ6YCU","created_at":"2026-05-18T12:31:24Z"},{"alias_kind":"pith_short_16","alias_value":"JKX3KGLQ6YCUYPBL","created_at":"2026-05-18T12:31:24Z"},{"alias_kind":"pith_short_8","alias_value":"JKX3KGLQ","created_at":"2026-05-18T12:31:24Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2017:JKX3KGLQ6YCUYPBLMJY6FNGD64","target":"record","payload":{"canonical_record":{"source":{"id":"1707.02184","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ex","submitted_at":"2017-07-07T14:02:40Z","cross_cats_sorted":["nucl-ex"],"title_canon_sha256":"f5e3ae545d18a3751245ab6dd8acc32947f068a4b216ef1c94a7fe187c8221b8","abstract_canon_sha256":"996c58c3f519c548d81862e7a3317bb340fda66442096be1693dabbd5324877a"},"schema_version":"1.0"},"canonical_sha256":"4aafb51970f6054c3c2b6271e2b4c3f71647bc97b47df3a6113067c2caeb74fd","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:34:17.716876Z","signature_b64":"dv8mE53PTlgbLCTbznlQKR8FnaMIYa0Ik0wb2tE7Do+FD5+y6V710NZBmuHmjozACvCta+U5afIzkyppgE8bBQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"4aafb51970f6054c3c2b6271e2b4c3f71647bc97b47df3a6113067c2caeb74fd","last_reissued_at":"2026-05-18T00:34:17.716227Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:34:17.716227Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1707.02184","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":"2026-05-18T00:34:17Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"WKR1c0PXvuhU3YvYvrHIloTyzLzylHZY/ojyWX5JdNLhKGr5EAi0GDWNybvUGkAbsVoiU9+gVJu0OwG6h9FbCw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-27T12:21:12.347910Z"},"content_sha256":"096357103b485bf10a520a2ce52067a9457612efe67656e4a7ac9d984681937d","schema_version":"1.0","event_id":"sha256:096357103b485bf10a520a2ce52067a9457612efe67656e4a7ac9d984681937d"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2017:JKX3KGLQ6YCUYPBLMJY6FNGD64","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Measurement of the $\\pi K$ atom lifetime and the $\\pi K$ scattering length","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["nucl-ex"],"primary_cat":"hep-ex","authors_text":"A. Anania, A. Benelli, A. Dudarev, A. Gorin, A. Kulikov, A. Kuptsov, A. Lamberto, A. Lanaro, A. Penzo, A. Romero Vidal, A. Ryazantsev, A. Sidorov, C. Amsler, C. Guaraldo, C. Marinas, D. Drijard, D. Dumitriu, D. Fluerasu, DIRAC Collaboration: B. Adeva, E. Kulish, F. Takeutchi, G. Rappazzo, J. Kluson, J. Martincik, J. Saborido, J. Schacher, J. Smolik, K. Gritsay, K. Okada, L. Afanasyev, L. Kruglova, L. Nemenov, L. Tauscher, M. Chiba, M. Gugiu, M. Hansroul, M. Kobayashi, M. Nikitin, M. Pentia, M. Plo, M. Zhabitsky, O. Gorchakov, P. Chliapnikov, P. Federicova, P. Prusa, P. Zrelov, R. Lednicky, S. Aogaki, S. Horikawa, S. Trusov, T. Cechak, T. Trojek, T. Urban, T. Vrba, V. Brekhovskikh, V. Karpukhin, V. Kruglov, V. Olchevskii, V. Rykalin, V. Yazkov, Y. Allkofer, Y. Iwashita, Y. Yoshimura, Z. Hons","submitted_at":"2017-07-07T14:02:40Z","abstract_excerpt":"After having announced the statistically significant observation (5.6~$\\sigma$) of the new exotic $\\pi K$ atom, the DIRAC experiment at the CERN proton synchrotron presents the measurement of the corresponding atom lifetime, based on the full $\\pi K$ data sample: $\\tau = (5.5^{+5.0}_{-2.8}) \\cdot 10^{-15}s$. By means of a precise relation ($<1\\%$) between atom lifetime and scattering length, the following value for the S-wave isospin-odd $\\pi K$ scattering length $a_0^{-}~=~\\frac{1}{3}(a_{1/2}-a_{3/2})$ has been derived: $\\left|a_0^-\\right| = (0.072^{+0.031}_{-0.020}) M_{\\pi}^{-1}$."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1707.02184","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":""},"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":"2026-05-18T00:34:17Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"6ioJoc0CtydW7CbYZpbfa6pyBkpklTCfLlKOLQ6/pPVT4GPibLQC1BpRB+QjM4VldUuua0A9T7O+sfx0p64gDg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-27T12:21:12.348280Z"},"content_sha256":"c15ba7f230e49a4c7f8bd9aeb3d445d663a0b071f2583076bb50180da03474b2","schema_version":"1.0","event_id":"sha256:c15ba7f230e49a4c7f8bd9aeb3d445d663a0b071f2583076bb50180da03474b2"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/JKX3KGLQ6YCUYPBLMJY6FNGD64/bundle.json","state_url":"https://pith.science/pith/JKX3KGLQ6YCUYPBLMJY6FNGD64/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/JKX3KGLQ6YCUYPBLMJY6FNGD64/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":"2026-05-27T12:21:12Z","links":{"resolver":"https://pith.science/pith/JKX3KGLQ6YCUYPBLMJY6FNGD64","bundle":"https://pith.science/pith/JKX3KGLQ6YCUYPBLMJY6FNGD64/bundle.json","state":"https://pith.science/pith/JKX3KGLQ6YCUYPBLMJY6FNGD64/state.json","well_known_bundle":"https://pith.science/.well-known/pith/JKX3KGLQ6YCUYPBLMJY6FNGD64/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2017:JKX3KGLQ6YCUYPBLMJY6FNGD64","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":"996c58c3f519c548d81862e7a3317bb340fda66442096be1693dabbd5324877a","cross_cats_sorted":["nucl-ex"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ex","submitted_at":"2017-07-07T14:02:40Z","title_canon_sha256":"f5e3ae545d18a3751245ab6dd8acc32947f068a4b216ef1c94a7fe187c8221b8"},"schema_version":"1.0","source":{"id":"1707.02184","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1707.02184","created_at":"2026-05-18T00:34:17Z"},{"alias_kind":"arxiv_version","alias_value":"1707.02184v2","created_at":"2026-05-18T00:34:17Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1707.02184","created_at":"2026-05-18T00:34:17Z"},{"alias_kind":"pith_short_12","alias_value":"JKX3KGLQ6YCU","created_at":"2026-05-18T12:31:24Z"},{"alias_kind":"pith_short_16","alias_value":"JKX3KGLQ6YCUYPBL","created_at":"2026-05-18T12:31:24Z"},{"alias_kind":"pith_short_8","alias_value":"JKX3KGLQ","created_at":"2026-05-18T12:31:24Z"}],"graph_snapshots":[{"event_id":"sha256:c15ba7f230e49a4c7f8bd9aeb3d445d663a0b071f2583076bb50180da03474b2","target":"graph","created_at":"2026-05-18T00:34:17Z","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":"After having announced the statistically significant observation (5.6~$\\sigma$) of the new exotic $\\pi K$ atom, the DIRAC experiment at the CERN proton synchrotron presents the measurement of the corresponding atom lifetime, based on the full $\\pi K$ data sample: $\\tau = (5.5^{+5.0}_{-2.8}) \\cdot 10^{-15}s$. By means of a precise relation ($<1\\%$) between atom lifetime and scattering length, the following value for the S-wave isospin-odd $\\pi K$ scattering length $a_0^{-}~=~\\frac{1}{3}(a_{1/2}-a_{3/2})$ has been derived: $\\left|a_0^-\\right| = (0.072^{+0.031}_{-0.020}) M_{\\pi}^{-1}$.","authors_text":"A. Anania, A. Benelli, A. Dudarev, A. Gorin, A. Kulikov, A. Kuptsov, A. Lamberto, A. Lanaro, A. Penzo, A. Romero Vidal, A. Ryazantsev, A. Sidorov, C. Amsler, C. Guaraldo, C. Marinas, D. Drijard, D. Dumitriu, D. Fluerasu, DIRAC Collaboration: B. Adeva, E. Kulish, F. Takeutchi, G. Rappazzo, J. Kluson, J. Martincik, J. Saborido, J. Schacher, J. Smolik, K. Gritsay, K. Okada, L. Afanasyev, L. Kruglova, L. Nemenov, L. Tauscher, M. Chiba, M. Gugiu, M. Hansroul, M. Kobayashi, M. Nikitin, M. Pentia, M. Plo, M. Zhabitsky, O. Gorchakov, P. Chliapnikov, P. Federicova, P. Prusa, P. Zrelov, R. Lednicky, S. Aogaki, S. Horikawa, S. Trusov, T. Cechak, T. Trojek, T. Urban, T. Vrba, V. Brekhovskikh, V. Karpukhin, V. Kruglov, V. Olchevskii, V. Rykalin, V. Yazkov, Y. Allkofer, Y. Iwashita, Y. Yoshimura, Z. Hons","cross_cats":["nucl-ex"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ex","submitted_at":"2017-07-07T14:02:40Z","title":"Measurement of the $\\pi K$ atom lifetime and the $\\pi K$ scattering length"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1707.02184","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":"sha256:096357103b485bf10a520a2ce52067a9457612efe67656e4a7ac9d984681937d","target":"record","created_at":"2026-05-18T00:34:17Z","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":"996c58c3f519c548d81862e7a3317bb340fda66442096be1693dabbd5324877a","cross_cats_sorted":["nucl-ex"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ex","submitted_at":"2017-07-07T14:02:40Z","title_canon_sha256":"f5e3ae545d18a3751245ab6dd8acc32947f068a4b216ef1c94a7fe187c8221b8"},"schema_version":"1.0","source":{"id":"1707.02184","kind":"arxiv","version":2}},"canonical_sha256":"4aafb51970f6054c3c2b6271e2b4c3f71647bc97b47df3a6113067c2caeb74fd","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"4aafb51970f6054c3c2b6271e2b4c3f71647bc97b47df3a6113067c2caeb74fd","first_computed_at":"2026-05-18T00:34:17.716227Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:34:17.716227Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"dv8mE53PTlgbLCTbznlQKR8FnaMIYa0Ik0wb2tE7Do+FD5+y6V710NZBmuHmjozACvCta+U5afIzkyppgE8bBQ==","signature_status":"signed_v1","signed_at":"2026-05-18T00:34:17.716876Z","signed_message":"canonical_sha256_bytes"},"source_id":"1707.02184","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:096357103b485bf10a520a2ce52067a9457612efe67656e4a7ac9d984681937d","sha256:c15ba7f230e49a4c7f8bd9aeb3d445d663a0b071f2583076bb50180da03474b2"],"state_sha256":"2acf898aa403cfadd0512725d600a63500b877a4ed4e731ad56d3e1a30b53e53"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"wXgHHuwc9/YOzZjC1w1KlBgqHiLTXvLUQJ9vXMPWfbp55rkexEgZeYaP4iX3Gp93qD36MhwnW6rmT4HSCxRLAA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-27T12:21:12.350606Z","bundle_sha256":"82dbe09d9bea5960e6f1fc26777dc40610931810a22ac6d984ef0204df00c0e6"}}