{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2021:O5WU4GZBT6TOQQ5STMCQINJRAK","short_pith_number":"pith:O5WU4GZB","canonical_record":{"source":{"id":"2106.15898","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"physics.ins-det","submitted_at":"2021-06-30T08:40:46Z","cross_cats_sorted":[],"title_canon_sha256":"bdf4d598c7e4e9c1dbcff72a74d0faf3cd805d580c37b007fdf46fc2af447444","abstract_canon_sha256":"1a80f41f5961ebd4effc23610e0b499f09d4b304dffd7d0e1127f9d587a99e15"},"schema_version":"1.0"},"canonical_sha256":"776d4e1b219fa6e843b29b0504353102a73a86c70829d998811ca59964ed2440","source":{"kind":"arxiv","id":"2106.15898","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2106.15898","created_at":"2026-07-05T03:12:09Z"},{"alias_kind":"arxiv_version","alias_value":"2106.15898v1","created_at":"2026-07-05T03:12:09Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2106.15898","created_at":"2026-07-05T03:12:09Z"},{"alias_kind":"pith_short_12","alias_value":"O5WU4GZBT6TO","created_at":"2026-07-05T03:12:09Z"},{"alias_kind":"pith_short_16","alias_value":"O5WU4GZBT6TOQQ5S","created_at":"2026-07-05T03:12:09Z"},{"alias_kind":"pith_short_8","alias_value":"O5WU4GZB","created_at":"2026-07-05T03:12:09Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2021:O5WU4GZBT6TOQQ5STMCQINJRAK","target":"record","payload":{"canonical_record":{"source":{"id":"2106.15898","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"physics.ins-det","submitted_at":"2021-06-30T08:40:46Z","cross_cats_sorted":[],"title_canon_sha256":"bdf4d598c7e4e9c1dbcff72a74d0faf3cd805d580c37b007fdf46fc2af447444","abstract_canon_sha256":"1a80f41f5961ebd4effc23610e0b499f09d4b304dffd7d0e1127f9d587a99e15"},"schema_version":"1.0"},"canonical_sha256":"776d4e1b219fa6e843b29b0504353102a73a86c70829d998811ca59964ed2440","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T03:12:09.888812Z","signature_b64":"9e89AXLIwXpC9Ey2QJXDYAxBpYbupQKyN3cZY0zuf7of35lff/x7uiJCUW8YxYcNZBqaV+niFW6t2y7Tnw8MCQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"776d4e1b219fa6e843b29b0504353102a73a86c70829d998811ca59964ed2440","last_reissued_at":"2026-07-05T03:12:09.888365Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T03:12:09.888365Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2106.15898","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":"2026-07-05T03:12:09Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"n2Y8GqYLgfJhno85dZSwsMQ+firqzgfWvm6Hs06QYzEtns/PWNceQvDr+AemfrvwjNWF0eLqzPmZcsZ1hh/xCg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-05T02:25:46.148310Z"},"content_sha256":"ae37b6cffac749728886083e93ba187496f44a7de420a24d841bba491d0956fa","schema_version":"1.0","event_id":"sha256:ae37b6cffac749728886083e93ba187496f44a7de420a24d841bba491d0956fa"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2021:O5WU4GZBT6TOQQ5STMCQINJRAK","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"A Computing and Detector Simulation Framework for the HIBEAM/NNBAR Experimental Program at the ESS","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":[],"primary_cat":"physics.ins-det","authors_text":"A. Nepomuceno, A. Oskarsson, A. Takibayev, B. Meirose, D. DiJulio, D. Milstead, E. Golubeva, E. Klinkby, G. Brooijmans, J. Barrow, J.I.M. Damian, J. Makkinje, K. Dunne, K. Ramic, L. Zanini, M. Frost, N. Rizzi, O. Zimmer, R. Wagner, S-C. Yiu, S. Silverstein, T. Kittelmann, V. Santoro, Y. Kamyshkov, Z. K\\'okai","submitted_at":"2021-06-30T08:40:46Z","abstract_excerpt":"The HIBEAM/NNBAR program is a proposed two-stage experiment at the European Spallation Source focusing on searches for baryon number violation via processes in which neutrons convert to antineutrons. This paper outlines the computing and detector simulation framework for the HIBEAM/NNBAR program. The simulation is based on predictions of neutron flux and neutronics together with signal and background generation. A range of diverse simulation packages are incorporated, including Monte Carlo transport codes, neutron ray-tracing simulation packages, and detector simulation software. The common si"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2106.15898","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2106.15898/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":"2026-07-05T03:12:09Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"LhojkPWy+kdo7AkvSER/ACLn06QSktNj2llxzwZgeg22E0DHVryDRMvSEp1W7Z2j/68NxYEtI4ZVdlxUdOYnBw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-05T02:25:46.148800Z"},"content_sha256":"8ef7a59fac6d23d6f62d91ac2450026d1c1798497a8bf8d7473c335a4fdb0945","schema_version":"1.0","event_id":"sha256:8ef7a59fac6d23d6f62d91ac2450026d1c1798497a8bf8d7473c335a4fdb0945"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/O5WU4GZBT6TOQQ5STMCQINJRAK/bundle.json","state_url":"https://pith.science/pith/O5WU4GZBT6TOQQ5STMCQINJRAK/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/O5WU4GZBT6TOQQ5STMCQINJRAK/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":"2026-08-05T02:25:46Z","links":{"resolver":"https://pith.science/pith/O5WU4GZBT6TOQQ5STMCQINJRAK","bundle":"https://pith.science/pith/O5WU4GZBT6TOQQ5STMCQINJRAK/bundle.json","state":"https://pith.science/pith/O5WU4GZBT6TOQQ5STMCQINJRAK/state.json","well_known_bundle":"https://pith.science/.well-known/pith/O5WU4GZBT6TOQQ5STMCQINJRAK/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2021:O5WU4GZBT6TOQQ5STMCQINJRAK","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":"1a80f41f5961ebd4effc23610e0b499f09d4b304dffd7d0e1127f9d587a99e15","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"physics.ins-det","submitted_at":"2021-06-30T08:40:46Z","title_canon_sha256":"bdf4d598c7e4e9c1dbcff72a74d0faf3cd805d580c37b007fdf46fc2af447444"},"schema_version":"1.0","source":{"id":"2106.15898","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2106.15898","created_at":"2026-07-05T03:12:09Z"},{"alias_kind":"arxiv_version","alias_value":"2106.15898v1","created_at":"2026-07-05T03:12:09Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2106.15898","created_at":"2026-07-05T03:12:09Z"},{"alias_kind":"pith_short_12","alias_value":"O5WU4GZBT6TO","created_at":"2026-07-05T03:12:09Z"},{"alias_kind":"pith_short_16","alias_value":"O5WU4GZBT6TOQQ5S","created_at":"2026-07-05T03:12:09Z"},{"alias_kind":"pith_short_8","alias_value":"O5WU4GZB","created_at":"2026-07-05T03:12:09Z"}],"graph_snapshots":[{"event_id":"sha256:8ef7a59fac6d23d6f62d91ac2450026d1c1798497a8bf8d7473c335a4fdb0945","target":"graph","created_at":"2026-07-05T03:12:09Z","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/2106.15898/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"The HIBEAM/NNBAR program is a proposed two-stage experiment at the European Spallation Source focusing on searches for baryon number violation via processes in which neutrons convert to antineutrons. This paper outlines the computing and detector simulation framework for the HIBEAM/NNBAR program. The simulation is based on predictions of neutron flux and neutronics together with signal and background generation. A range of diverse simulation packages are incorporated, including Monte Carlo transport codes, neutron ray-tracing simulation packages, and detector simulation software. The common si","authors_text":"A. Nepomuceno, A. Oskarsson, A. Takibayev, B. Meirose, D. DiJulio, D. Milstead, E. Golubeva, E. Klinkby, G. Brooijmans, J. Barrow, J.I.M. Damian, J. Makkinje, K. Dunne, K. Ramic, L. Zanini, M. Frost, N. Rizzi, O. Zimmer, R. Wagner, S-C. Yiu, S. Silverstein, T. Kittelmann, V. Santoro, Y. Kamyshkov, Z. K\\'okai","cross_cats":[],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"physics.ins-det","submitted_at":"2021-06-30T08:40:46Z","title":"A Computing and Detector Simulation Framework for the HIBEAM/NNBAR Experimental Program at the ESS"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2106.15898","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:ae37b6cffac749728886083e93ba187496f44a7de420a24d841bba491d0956fa","target":"record","created_at":"2026-07-05T03:12:09Z","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":"1a80f41f5961ebd4effc23610e0b499f09d4b304dffd7d0e1127f9d587a99e15","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"physics.ins-det","submitted_at":"2021-06-30T08:40:46Z","title_canon_sha256":"bdf4d598c7e4e9c1dbcff72a74d0faf3cd805d580c37b007fdf46fc2af447444"},"schema_version":"1.0","source":{"id":"2106.15898","kind":"arxiv","version":1}},"canonical_sha256":"776d4e1b219fa6e843b29b0504353102a73a86c70829d998811ca59964ed2440","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"776d4e1b219fa6e843b29b0504353102a73a86c70829d998811ca59964ed2440","first_computed_at":"2026-07-05T03:12:09.888365Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T03:12:09.888365Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"9e89AXLIwXpC9Ey2QJXDYAxBpYbupQKyN3cZY0zuf7of35lff/x7uiJCUW8YxYcNZBqaV+niFW6t2y7Tnw8MCQ==","signature_status":"signed_v1","signed_at":"2026-07-05T03:12:09.888812Z","signed_message":"canonical_sha256_bytes"},"source_id":"2106.15898","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:ae37b6cffac749728886083e93ba187496f44a7de420a24d841bba491d0956fa","sha256:8ef7a59fac6d23d6f62d91ac2450026d1c1798497a8bf8d7473c335a4fdb0945"],"state_sha256":"c36bbf3fcc0f73d9caf6b5a9a915ecae8c063d5d9037e41233f18f3a99939edd"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"EMBvy3hiDNgUsYRBBjhzEoWDcKHPAfVBh4qbJRH1r3EuD7T9QGAHLZpjiqkOvvvucv4IM+8ptBpQE1JnZ+29Aw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-05T02:25:46.152443Z","bundle_sha256":"4e2846c0af4462092730099c78c5c67d8deef41fb679bd4ad6308412650d42c2"}}