{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2017:P23O2PWAKP6BN4QCZJ4MFN37SH","short_pith_number":"pith:P23O2PWA","canonical_record":{"source":{"id":"1709.01060","kind":"arxiv","version":5},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"nucl-ex","submitted_at":"2017-09-04T17:56:47Z","cross_cats_sorted":[],"title_canon_sha256":"2a203c6797cefd4caec70fa231d296253fe1b63c743f92cce5414f4debf9d97d","abstract_canon_sha256":"564c14f6dcef5fced5d8e5b1ce459241312737a80e82e50a64940220732f2ae7"},"schema_version":"1.0"},"canonical_sha256":"7eb6ed3ec053fc16f202ca78c2b77f91ec3b6954b465fc29eb6632a80a84ba46","source":{"kind":"arxiv","id":"1709.01060","version":5},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1709.01060","created_at":"2026-05-18T00:17:42Z"},{"alias_kind":"arxiv_version","alias_value":"1709.01060v5","created_at":"2026-05-18T00:17:42Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1709.01060","created_at":"2026-05-18T00:17:42Z"},{"alias_kind":"pith_short_12","alias_value":"P23O2PWAKP6B","created_at":"2026-05-18T12:31:37Z"},{"alias_kind":"pith_short_16","alias_value":"P23O2PWAKP6BN4QC","created_at":"2026-05-18T12:31:37Z"},{"alias_kind":"pith_short_8","alias_value":"P23O2PWA","created_at":"2026-05-18T12:31:37Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2017:P23O2PWAKP6BN4QCZJ4MFN37SH","target":"record","payload":{"canonical_record":{"source":{"id":"1709.01060","kind":"arxiv","version":5},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"nucl-ex","submitted_at":"2017-09-04T17:56:47Z","cross_cats_sorted":[],"title_canon_sha256":"2a203c6797cefd4caec70fa231d296253fe1b63c743f92cce5414f4debf9d97d","abstract_canon_sha256":"564c14f6dcef5fced5d8e5b1ce459241312737a80e82e50a64940220732f2ae7"},"schema_version":"1.0"},"canonical_sha256":"7eb6ed3ec053fc16f202ca78c2b77f91ec3b6954b465fc29eb6632a80a84ba46","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:17:42.994610Z","signature_b64":"elR4CEtJU8Cm5FYahcVbjCXgaWTgkUUltrRCUuuhifWMuNTK/ppnLURG0op82Zykz6aCq002747wRLM6jYMhBg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"7eb6ed3ec053fc16f202ca78c2b77f91ec3b6954b465fc29eb6632a80a84ba46","last_reissued_at":"2026-05-18T00:17:42.993828Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:17:42.993828Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1709.01060","source_version":5,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T00:17:42Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"pnfBA+wceATzD1EbXLWnM0zMcK4piNoulgqeCSNJKlczAOcIUNXR+Lk0V5DqEgHUPAq/GX5Dg4zB1MhML94lBw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-27T07:26:35.555911Z"},"content_sha256":"f69800237693036f6ea2869c87e71ccd52328319ee486f7b4b46cb3880ed6a22","schema_version":"1.0","event_id":"sha256:f69800237693036f6ea2869c87e71ccd52328319ee486f7b4b46cb3880ed6a22"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2017:P23O2PWAKP6BN4QCZJ4MFN37SH","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Importance of d-wave contributions in the charge symmetry breaking reaction $dd \\to {}^4\\text{He}\\pi^0$","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"nucl-ex","authors_text":"A. Bondar, A. Erven, A. Goswami, A. Khoukaz, A. Kup\\'s\\'c, A. Kuzmin, A. Magiera, A. Pyszniak, A. Roy, A. Szczurek, A. Trzci\\'nski, A. Wro\\'nska, A. Yamamoto, B. Kamys, B. K{\\l}os, B. Lorentz, B. Maria\\'nski, B. Shwartz, C. Hanhart, C.-O. Gullstr\\\"om, D.A. Kirillov, D. Lersch, D. Prasuhn, D. Pszczel, E. Czerwi\\'nski, E. Perez del Rio, E. Stephan, F. Goldenbaum, F.S. Bergmann, G. Kemmerling, G. Khatri, G. Sterzenbach, H. Cal\\'en, H. Clement, H. Kleines, H. Ohm, H.-P. Morsch, H. Stockhorst, H. Str\\\"oher, I. Ciepa{\\l}, I. Sch\\\"atti-Ozerianska, J. Ritman, J. Smyrski, J. Stepaniak, J. Zabierowski, J. Z{\\l}oma\\'nczuk, K. Demmich, K. F\\\"ohl, K. Fransson, K. Grigoryev, K. Lalwani, K. Pysz, K. Sitterberg, L. Heijkenskj\\\"old, L. Jarczyk, M. Bashkanov, M. Ber{\\l}owski, M. B\\\"uscher, M.J. Zieli\\'nski, M. Skurzok, M. Wolke, M. \\.Zurek, N. H\\\"usken, N.M. Piskunov, O. Khreptak, O. Rundel, P. Adlarson, P. Fedorets, P. Kulessa, P. Marciniewski, P. Moskal, P. W\\\"ustner, P. \\.Zupra\\'nski, R. Engels, R. Maier, R. Stassen, S. Kistryn, S. Sawant, S. Schadmand, T. Johansson, T. Sefzick, T. Skorodko, V. Hejny, V. Serdyuk, V. Sopov, W. Augustyniak, W. Bardan, W. Erven, W. Eyrich, W. Krzemie\\'n, W. Parol, Z. Rudy","submitted_at":"2017-09-04T17:56:47Z","abstract_excerpt":"This letter reports a first quantitative analysis of the contribution of higher partial waves in the charge symmetry breaking reaction $dd \\to {}^4\\text{He}\\pi^0$ using the WASA-at-COSY detector setup at an excess energy of $Q = 60$ MeV. The determined differential cross section can be parametrized as $\\text{d}\\sigma/\\text{d}\\Omega = a + b\\cos^{2}\\theta^*$, where $\\theta^*$ is the production angle of the pion in the center-of-mass coordinate system, and the results for the parameters are $a = \\left(1.55 \\pm 0.46 (\\text{stat}) ^{+0.32}_{-0.8} (\\text{syst}) \\right)$ pb/sr and $b = \\left(13.1 \\pm"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1709.01060","kind":"arxiv","version":5},"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":"2026-05-18T00:17:42Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"joSlqXj4mGazTOdgbB6+3lktlO116obzXNiXTJw+hY2IemCouf9hzolaV8/z+pfWS18VtI2BOqVAy5aeGZlmDA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-27T07:26:35.556434Z"},"content_sha256":"0a750c74f5fe99d7e186064d33a19fb575db16f1d011bf561b70b0043072b560","schema_version":"1.0","event_id":"sha256:0a750c74f5fe99d7e186064d33a19fb575db16f1d011bf561b70b0043072b560"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/P23O2PWAKP6BN4QCZJ4MFN37SH/bundle.json","state_url":"https://pith.science/pith/P23O2PWAKP6BN4QCZJ4MFN37SH/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/P23O2PWAKP6BN4QCZJ4MFN37SH/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":"2026-05-27T07:26:35Z","links":{"resolver":"https://pith.science/pith/P23O2PWAKP6BN4QCZJ4MFN37SH","bundle":"https://pith.science/pith/P23O2PWAKP6BN4QCZJ4MFN37SH/bundle.json","state":"https://pith.science/pith/P23O2PWAKP6BN4QCZJ4MFN37SH/state.json","well_known_bundle":"https://pith.science/.well-known/pith/P23O2PWAKP6BN4QCZJ4MFN37SH/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2017:P23O2PWAKP6BN4QCZJ4MFN37SH","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":"564c14f6dcef5fced5d8e5b1ce459241312737a80e82e50a64940220732f2ae7","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"nucl-ex","submitted_at":"2017-09-04T17:56:47Z","title_canon_sha256":"2a203c6797cefd4caec70fa231d296253fe1b63c743f92cce5414f4debf9d97d"},"schema_version":"1.0","source":{"id":"1709.01060","kind":"arxiv","version":5}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1709.01060","created_at":"2026-05-18T00:17:42Z"},{"alias_kind":"arxiv_version","alias_value":"1709.01060v5","created_at":"2026-05-18T00:17:42Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1709.01060","created_at":"2026-05-18T00:17:42Z"},{"alias_kind":"pith_short_12","alias_value":"P23O2PWAKP6B","created_at":"2026-05-18T12:31:37Z"},{"alias_kind":"pith_short_16","alias_value":"P23O2PWAKP6BN4QC","created_at":"2026-05-18T12:31:37Z"},{"alias_kind":"pith_short_8","alias_value":"P23O2PWA","created_at":"2026-05-18T12:31:37Z"}],"graph_snapshots":[{"event_id":"sha256:0a750c74f5fe99d7e186064d33a19fb575db16f1d011bf561b70b0043072b560","target":"graph","created_at":"2026-05-18T00:17:42Z","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 letter reports a first quantitative analysis of the contribution of higher partial waves in the charge symmetry breaking reaction $dd \\to {}^4\\text{He}\\pi^0$ using the WASA-at-COSY detector setup at an excess energy of $Q = 60$ MeV. The determined differential cross section can be parametrized as $\\text{d}\\sigma/\\text{d}\\Omega = a + b\\cos^{2}\\theta^*$, where $\\theta^*$ is the production angle of the pion in the center-of-mass coordinate system, and the results for the parameters are $a = \\left(1.55 \\pm 0.46 (\\text{stat}) ^{+0.32}_{-0.8} (\\text{syst}) \\right)$ pb/sr and $b = \\left(13.1 \\pm","authors_text":"A. Bondar, A. Erven, A. Goswami, A. Khoukaz, A. Kup\\'s\\'c, A. Kuzmin, A. Magiera, A. Pyszniak, A. Roy, A. Szczurek, A. Trzci\\'nski, A. Wro\\'nska, A. Yamamoto, B. Kamys, B. K{\\l}os, B. Lorentz, B. Maria\\'nski, B. Shwartz, C. Hanhart, C.-O. Gullstr\\\"om, D.A. Kirillov, D. Lersch, D. Prasuhn, D. Pszczel, E. Czerwi\\'nski, E. Perez del Rio, E. Stephan, F. Goldenbaum, F.S. Bergmann, G. Kemmerling, G. Khatri, G. Sterzenbach, H. Cal\\'en, H. Clement, H. Kleines, H. Ohm, H.-P. Morsch, H. Stockhorst, H. Str\\\"oher, I. Ciepa{\\l}, I. Sch\\\"atti-Ozerianska, J. Ritman, J. Smyrski, J. Stepaniak, J. Zabierowski, J. Z{\\l}oma\\'nczuk, K. Demmich, K. F\\\"ohl, K. Fransson, K. Grigoryev, K. Lalwani, K. Pysz, K. Sitterberg, L. Heijkenskj\\\"old, L. Jarczyk, M. Bashkanov, M. Ber{\\l}owski, M. B\\\"uscher, M.J. Zieli\\'nski, M. Skurzok, M. Wolke, M. \\.Zurek, N. H\\\"usken, N.M. Piskunov, O. Khreptak, O. Rundel, P. Adlarson, P. Fedorets, P. Kulessa, P. Marciniewski, P. Moskal, P. W\\\"ustner, P. \\.Zupra\\'nski, R. Engels, R. Maier, R. Stassen, S. Kistryn, S. Sawant, S. Schadmand, T. Johansson, T. Sefzick, T. Skorodko, V. Hejny, V. Serdyuk, V. Sopov, W. Augustyniak, W. Bardan, W. Erven, W. Eyrich, W. Krzemie\\'n, W. Parol, Z. Rudy","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"nucl-ex","submitted_at":"2017-09-04T17:56:47Z","title":"Importance of d-wave contributions in the charge symmetry breaking reaction $dd \\to {}^4\\text{He}\\pi^0$"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1709.01060","kind":"arxiv","version":5},"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:f69800237693036f6ea2869c87e71ccd52328319ee486f7b4b46cb3880ed6a22","target":"record","created_at":"2026-05-18T00:17:42Z","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":"564c14f6dcef5fced5d8e5b1ce459241312737a80e82e50a64940220732f2ae7","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"nucl-ex","submitted_at":"2017-09-04T17:56:47Z","title_canon_sha256":"2a203c6797cefd4caec70fa231d296253fe1b63c743f92cce5414f4debf9d97d"},"schema_version":"1.0","source":{"id":"1709.01060","kind":"arxiv","version":5}},"canonical_sha256":"7eb6ed3ec053fc16f202ca78c2b77f91ec3b6954b465fc29eb6632a80a84ba46","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"7eb6ed3ec053fc16f202ca78c2b77f91ec3b6954b465fc29eb6632a80a84ba46","first_computed_at":"2026-05-18T00:17:42.993828Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:17:42.993828Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"elR4CEtJU8Cm5FYahcVbjCXgaWTgkUUltrRCUuuhifWMuNTK/ppnLURG0op82Zykz6aCq002747wRLM6jYMhBg==","signature_status":"signed_v1","signed_at":"2026-05-18T00:17:42.994610Z","signed_message":"canonical_sha256_bytes"},"source_id":"1709.01060","source_kind":"arxiv","source_version":5}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:f69800237693036f6ea2869c87e71ccd52328319ee486f7b4b46cb3880ed6a22","sha256:0a750c74f5fe99d7e186064d33a19fb575db16f1d011bf561b70b0043072b560"],"state_sha256":"c9cf03d6d68208414bac1df7409bcd79cc0e67d282725d710f9e95099fecca08"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"+0DpTZCbUli1nWIHSdR/Gz92wK2VWBRlreR2Bzqe82beAf+G2ktu6w3pLqTSqRvEH4hIHZoMLD/tR5jPXjzFDg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-27T07:26:35.560146Z","bundle_sha256":"bb0e7d6a55249d61ee45cd1bfdfbc0e708270fb95868bed806bc841df85219f9"}}