{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2020:WLD2AY6II4RUSUQFDOH4PF6376","short_pith_number":"pith:WLD2AY6I","canonical_record":{"source":{"id":"2010.11819","kind":"arxiv","version":2},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"hep-ex","submitted_at":"2020-10-22T15:56:20Z","cross_cats_sorted":[],"title_canon_sha256":"62e6a6dde11f2eea2a819bf125e92ab6380786f4e94276f9854d48da61ea0761","abstract_canon_sha256":"be4981e98a08d39246c1577edeaee8dc4107f692887d1756b0dca22ae54af1af"},"schema_version":"1.0"},"canonical_sha256":"b2c7a063c847234952051b8fc797dbff9653c8d83d1d9b7545db2511512cb397","source":{"kind":"arxiv","id":"2010.11819","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2010.11819","created_at":"2026-07-05T02:13:19Z"},{"alias_kind":"arxiv_version","alias_value":"2010.11819v2","created_at":"2026-07-05T02:13:19Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2010.11819","created_at":"2026-07-05T02:13:19Z"},{"alias_kind":"pith_short_12","alias_value":"WLD2AY6II4RU","created_at":"2026-07-05T02:13:19Z"},{"alias_kind":"pith_short_16","alias_value":"WLD2AY6II4RUSUQF","created_at":"2026-07-05T02:13:19Z"},{"alias_kind":"pith_short_8","alias_value":"WLD2AY6I","created_at":"2026-07-05T02:13:19Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2020:WLD2AY6II4RUSUQFDOH4PF6376","target":"record","payload":{"canonical_record":{"source":{"id":"2010.11819","kind":"arxiv","version":2},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"hep-ex","submitted_at":"2020-10-22T15:56:20Z","cross_cats_sorted":[],"title_canon_sha256":"62e6a6dde11f2eea2a819bf125e92ab6380786f4e94276f9854d48da61ea0761","abstract_canon_sha256":"be4981e98a08d39246c1577edeaee8dc4107f692887d1756b0dca22ae54af1af"},"schema_version":"1.0"},"canonical_sha256":"b2c7a063c847234952051b8fc797dbff9653c8d83d1d9b7545db2511512cb397","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T02:13:19.501390Z","signature_b64":"qqvifcI9fz8T5CqIodXrVUzvvPScfeuP4FW+pYFvUPpRyA3/2Mh3uZzxABw3DFWTUst6pYkvbKNwWR050a1rAQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"b2c7a063c847234952051b8fc797dbff9653c8d83d1d9b7545db2511512cb397","last_reissued_at":"2026-07-05T02:13:19.500884Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T02:13:19.500884Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2010.11819","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":"2026-07-05T02:13:19Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"3K7rirR/f0xGWSCGoOgO7FSQFHgvA/2RFUkJD8yAXBhQxo9na9bTCgQmuIe4R4eLIfIENeq/LpyjvZxowRjsCQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-09T05:04:04.311081Z"},"content_sha256":"538265cc8b6baa333619f0acf4a0bf6463c4216d98c3f6cbb028e53e516a937c","schema_version":"1.0","event_id":"sha256:538265cc8b6baa333619f0acf4a0bf6463c4216d98c3f6cbb028e53e516a937c"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2020:WLD2AY6II4RUSUQFDOH4PF6376","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Measurement of the production cross section of 31 GeV/$c$ protons on carbon via beam attenuation in a 90-cm-long target","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":[],"primary_cat":"hep-ex","authors_text":"A. Aduszkiewicz, A. Blondel, A. Brandin, A. Bravar, A. Bzdak, A. Damyanova, A.D. Marino, A. Dmitriev, A. Garibov, A. Haesler, A.I. Malakhov, A. Ivashkin, A. Korzenev, A. Krasnoperov, A. Kurepin, A. L\\'aszl\\'o, A. Marcinek, A.O. Merzlaya, A. Rustamov, A. Rybicki, A. Sadovsky, A. Taranenko, A. Tefelska, A. Toia, A. Wickremasinghe, A.Yu. Seryakov, A. Zaitsev, B.A. Popov, B. Koz{\\l}owski, B. Maksiak, B. Messerly, B. Porfy, B.T. Rumberger, D. Kolev, D. Larsen, D. Pszczel, D. R\\\"ohrich, D.S. Prokhorova, D. Tefelski, D. Uzhva, D. Veberi\\v{c}, E.D. Zimmerman, E. Kashirin, E. Rondio, E.V. Andronov, F.F. Valiev, F. Guber, G.A. Feofilov, G.L. Melkumov, G. Stefanek, H. Adhikary, H. Cherif, H.-J. Mathes, H. Str\\\"obele, I. Selyuzhenkov, J. Brzychczyk, J. Cybowska, J. Dumarchez, J. Puzovi\\'c, J. Stepaniak, K. Grebieszkow, K. Kadija, K.K. Allison, K. {\\L}ojek, K. Marton, K. Schmidt, K. Wojcik, L. Fields, {\\L}. Mik, L. Turko, M. Baszczyk, M. Bogomilov, M. Buryakov, M. \\'Cirkovi\\'c, M. Csanad, M. Deliyergiyev, M. Deveaux, M. Ga\\'zdzicki, M. Golubeva, M. Kie{\\l}bowicz, M. Koziel, M. Kuich, M. Lewicki, M. Ma\\'ckowiak-Paw{\\l}owska, M. Naskr\\k{e}t, M. Pavin, M. Posiada{\\l}a-Zezula, M. Ravonel, M. Roth, M. Rumyantsev, M. Rybczynski, M. S{\\l}odkowski, M. Strikhanov, M. Unger, NA61/SHINE Collaboration: A. Acharya, N. Davis, N. Kargin, O. Busygina, O. Golosov, O. Petukhov, O. Wyszy\\'nski, P. Dorosz, P. Podlaski, P. Seyboth, P. Staszel, R. Engel, R. P{\\l}aneta, R. Renfordt, R. Tsenov, R. Ulrich, R. Zwaska, S. Bhosale, S. Ilieva, S. Kowalski, S. Morozov, S.N. Igolkin, S. Pu{\\l}awski, S.R. Johnson, S. Sadhu, T. Anti\\'ci\\'c, T. Czopowicz, T. Matulewicz, T.V. Lazareva, T. \\v{S}u\\v{s}a, V.A. Kireyeu, V. Babkin, V. Golovatyuk, V.I. Kolesnikov, V. Klochkov, V. Matveev, V.N. Kovalenko, V. Ozvenchuk, V. Paolone, V. Tereshchenko, V.V. Lyubushkin, V.V. Vechernin, W. Bryli\\'nski, W. Dominik, W. Kucewicz, Y. Nagai, Z. Fodor, Z. Majka","submitted_at":"2020-10-22T15:56:20Z","abstract_excerpt":"The production cross section of 30.92 GeV/$c$ protons on carbon is measured by the NA61/SHINE spectrometer at the CERN SPS by means of beam attenuation in a copy (replica) of the 90-cm-long target of the T2K neutrino oscillation experiment. The employed method for direct production cross-section estimation minimizes model corrections for elastic and quasi-elastic interactions. The obtained production cross section is $\\sigma_\\mathrm{prod}~=~227.6~\\pm~0.8\\mathrm{(stat)}~_{-~3.2}^{+~1.9}\\mathrm{(sys)}~{-~0.8}\\mathrm{(mod)}$ mb. It is in agreement with previous NA61/SHINE results obtained with a "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2010.11819","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/2010.11819/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":"2026-07-05T02:13:19Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"qRlO1dsPWJkyQrKxYm7ElVD3qKsNNDmTOUxhbVzQnIlaXltpcv4yugU484cfYZIMScstP/uzixf+PmjGZPFgBA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-09T05:04:04.311506Z"},"content_sha256":"05ff30a1c8a192ee6b7a759aa0d6a719919793bc374fb9b9ca91f92b676dc0dc","schema_version":"1.0","event_id":"sha256:05ff30a1c8a192ee6b7a759aa0d6a719919793bc374fb9b9ca91f92b676dc0dc"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/WLD2AY6II4RUSUQFDOH4PF6376/bundle.json","state_url":"https://pith.science/pith/WLD2AY6II4RUSUQFDOH4PF6376/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/WLD2AY6II4RUSUQFDOH4PF6376/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":"2026-07-09T05:04:04Z","links":{"resolver":"https://pith.science/pith/WLD2AY6II4RUSUQFDOH4PF6376","bundle":"https://pith.science/pith/WLD2AY6II4RUSUQFDOH4PF6376/bundle.json","state":"https://pith.science/pith/WLD2AY6II4RUSUQFDOH4PF6376/state.json","well_known_bundle":"https://pith.science/.well-known/pith/WLD2AY6II4RUSUQFDOH4PF6376/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2020:WLD2AY6II4RUSUQFDOH4PF6376","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":"be4981e98a08d39246c1577edeaee8dc4107f692887d1756b0dca22ae54af1af","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"hep-ex","submitted_at":"2020-10-22T15:56:20Z","title_canon_sha256":"62e6a6dde11f2eea2a819bf125e92ab6380786f4e94276f9854d48da61ea0761"},"schema_version":"1.0","source":{"id":"2010.11819","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2010.11819","created_at":"2026-07-05T02:13:19Z"},{"alias_kind":"arxiv_version","alias_value":"2010.11819v2","created_at":"2026-07-05T02:13:19Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2010.11819","created_at":"2026-07-05T02:13:19Z"},{"alias_kind":"pith_short_12","alias_value":"WLD2AY6II4RU","created_at":"2026-07-05T02:13:19Z"},{"alias_kind":"pith_short_16","alias_value":"WLD2AY6II4RUSUQF","created_at":"2026-07-05T02:13:19Z"},{"alias_kind":"pith_short_8","alias_value":"WLD2AY6I","created_at":"2026-07-05T02:13:19Z"}],"graph_snapshots":[{"event_id":"sha256:05ff30a1c8a192ee6b7a759aa0d6a719919793bc374fb9b9ca91f92b676dc0dc","target":"graph","created_at":"2026-07-05T02:13:19Z","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/2010.11819/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"The production cross section of 30.92 GeV/$c$ protons on carbon is measured by the NA61/SHINE spectrometer at the CERN SPS by means of beam attenuation in a copy (replica) of the 90-cm-long target of the T2K neutrino oscillation experiment. The employed method for direct production cross-section estimation minimizes model corrections for elastic and quasi-elastic interactions. The obtained production cross section is $\\sigma_\\mathrm{prod}~=~227.6~\\pm~0.8\\mathrm{(stat)}~_{-~3.2}^{+~1.9}\\mathrm{(sys)}~{-~0.8}\\mathrm{(mod)}$ mb. It is in agreement with previous NA61/SHINE results obtained with a ","authors_text":"A. Aduszkiewicz, A. Blondel, A. Brandin, A. Bravar, A. Bzdak, A. Damyanova, A.D. Marino, A. Dmitriev, A. Garibov, A. Haesler, A.I. Malakhov, A. Ivashkin, A. Korzenev, A. Krasnoperov, A. Kurepin, A. L\\'aszl\\'o, A. Marcinek, A.O. Merzlaya, A. Rustamov, A. Rybicki, A. Sadovsky, A. Taranenko, A. Tefelska, A. Toia, A. Wickremasinghe, A.Yu. Seryakov, A. Zaitsev, B.A. Popov, B. Koz{\\l}owski, B. Maksiak, B. Messerly, B. Porfy, B.T. Rumberger, D. Kolev, D. Larsen, D. Pszczel, D. R\\\"ohrich, D.S. Prokhorova, D. Tefelski, D. Uzhva, D. Veberi\\v{c}, E.D. Zimmerman, E. Kashirin, E. Rondio, E.V. Andronov, F.F. Valiev, F. Guber, G.A. Feofilov, G.L. Melkumov, G. Stefanek, H. Adhikary, H. Cherif, H.-J. Mathes, H. Str\\\"obele, I. Selyuzhenkov, J. Brzychczyk, J. Cybowska, J. Dumarchez, J. Puzovi\\'c, J. Stepaniak, K. Grebieszkow, K. Kadija, K.K. Allison, K. {\\L}ojek, K. Marton, K. Schmidt, K. Wojcik, L. Fields, {\\L}. Mik, L. Turko, M. Baszczyk, M. Bogomilov, M. Buryakov, M. \\'Cirkovi\\'c, M. Csanad, M. Deliyergiyev, M. Deveaux, M. Ga\\'zdzicki, M. Golubeva, M. Kie{\\l}bowicz, M. Koziel, M. Kuich, M. Lewicki, M. Ma\\'ckowiak-Paw{\\l}owska, M. Naskr\\k{e}t, M. Pavin, M. Posiada{\\l}a-Zezula, M. Ravonel, M. Roth, M. Rumyantsev, M. Rybczynski, M. S{\\l}odkowski, M. Strikhanov, M. Unger, NA61/SHINE Collaboration: A. Acharya, N. Davis, N. Kargin, O. Busygina, O. Golosov, O. Petukhov, O. Wyszy\\'nski, P. Dorosz, P. Podlaski, P. Seyboth, P. Staszel, R. Engel, R. P{\\l}aneta, R. Renfordt, R. Tsenov, R. Ulrich, R. Zwaska, S. Bhosale, S. Ilieva, S. Kowalski, S. Morozov, S.N. Igolkin, S. Pu{\\l}awski, S.R. Johnson, S. Sadhu, T. Anti\\'ci\\'c, T. Czopowicz, T. Matulewicz, T.V. Lazareva, T. \\v{S}u\\v{s}a, V.A. Kireyeu, V. Babkin, V. Golovatyuk, V.I. Kolesnikov, V. Klochkov, V. Matveev, V.N. Kovalenko, V. Ozvenchuk, V. Paolone, V. Tereshchenko, V.V. Lyubushkin, V.V. Vechernin, W. Bryli\\'nski, W. Dominik, W. Kucewicz, Y. Nagai, Z. Fodor, Z. Majka","cross_cats":[],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"hep-ex","submitted_at":"2020-10-22T15:56:20Z","title":"Measurement of the production cross section of 31 GeV/$c$ protons on carbon via beam attenuation in a 90-cm-long target"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2010.11819","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":"sha256:538265cc8b6baa333619f0acf4a0bf6463c4216d98c3f6cbb028e53e516a937c","target":"record","created_at":"2026-07-05T02:13:19Z","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":"be4981e98a08d39246c1577edeaee8dc4107f692887d1756b0dca22ae54af1af","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"hep-ex","submitted_at":"2020-10-22T15:56:20Z","title_canon_sha256":"62e6a6dde11f2eea2a819bf125e92ab6380786f4e94276f9854d48da61ea0761"},"schema_version":"1.0","source":{"id":"2010.11819","kind":"arxiv","version":2}},"canonical_sha256":"b2c7a063c847234952051b8fc797dbff9653c8d83d1d9b7545db2511512cb397","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"b2c7a063c847234952051b8fc797dbff9653c8d83d1d9b7545db2511512cb397","first_computed_at":"2026-07-05T02:13:19.500884Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T02:13:19.500884Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"qqvifcI9fz8T5CqIodXrVUzvvPScfeuP4FW+pYFvUPpRyA3/2Mh3uZzxABw3DFWTUst6pYkvbKNwWR050a1rAQ==","signature_status":"signed_v1","signed_at":"2026-07-05T02:13:19.501390Z","signed_message":"canonical_sha256_bytes"},"source_id":"2010.11819","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:538265cc8b6baa333619f0acf4a0bf6463c4216d98c3f6cbb028e53e516a937c","sha256:05ff30a1c8a192ee6b7a759aa0d6a719919793bc374fb9b9ca91f92b676dc0dc"],"state_sha256":"9b4ff0a05bf456a9206e0ce590ffc2a0354165452b82626745ca4449aa9cf2ce"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"wuR3diZrVXliuiwvZmw+GBAqXxPAlmjNr0bG52HN87yzH1aEFo+NFxPxA/zEZ3LlklIQ1+vZBJLMu6/2Dx0sAA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-07-09T05:04:04.313634Z","bundle_sha256":"be92da6f226f9c32a5673749533d3e709067b96b534896c750ab52146f397a0e"}}