{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2017:KRKMOVMOYZOMGG6C2KKBMOLGYR","short_pith_number":"pith:KRKMOVMO","canonical_record":{"source":{"id":"1706.05324","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"nucl-ex","submitted_at":"2017-06-16T15:43:35Z","cross_cats_sorted":["physics.ins-det"],"title_canon_sha256":"9dd87a3e017f66e4cc5860baac06ae0c75d3303da3c1a333c3f40c498cda1894","abstract_canon_sha256":"8b8e5eb6e9ac5cac2fe33ca3b52c2e40fef89cb88ddcc9e1b3e9cba5b6f58b7a"},"schema_version":"1.0"},"canonical_sha256":"5454c7558ec65cc31bc2d294163966c46bf1ce9ab45393c43563d576865eb0d4","source":{"kind":"arxiv","id":"1706.05324","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1706.05324","created_at":"2026-05-18T00:31:12Z"},{"alias_kind":"arxiv_version","alias_value":"1706.05324v2","created_at":"2026-05-18T00:31:12Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1706.05324","created_at":"2026-05-18T00:31:12Z"},{"alias_kind":"pith_short_12","alias_value":"KRKMOVMOYZOM","created_at":"2026-05-18T12:31:28Z"},{"alias_kind":"pith_short_16","alias_value":"KRKMOVMOYZOMGG6C","created_at":"2026-05-18T12:31:28Z"},{"alias_kind":"pith_short_8","alias_value":"KRKMOVMO","created_at":"2026-05-18T12:31:28Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2017:KRKMOVMOYZOMGG6C2KKBMOLGYR","target":"record","payload":{"canonical_record":{"source":{"id":"1706.05324","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"nucl-ex","submitted_at":"2017-06-16T15:43:35Z","cross_cats_sorted":["physics.ins-det"],"title_canon_sha256":"9dd87a3e017f66e4cc5860baac06ae0c75d3303da3c1a333c3f40c498cda1894","abstract_canon_sha256":"8b8e5eb6e9ac5cac2fe33ca3b52c2e40fef89cb88ddcc9e1b3e9cba5b6f58b7a"},"schema_version":"1.0"},"canonical_sha256":"5454c7558ec65cc31bc2d294163966c46bf1ce9ab45393c43563d576865eb0d4","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:31:12.466235Z","signature_b64":"7sj8FY+dcJDVY7lGqIs/9hqcjMbPJBMvHRR7r+d/ZG+Oxeh2Lj0qBQwooEvZWqonZCo9l1BBwF2WrT1nOwfzBg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"5454c7558ec65cc31bc2d294163966c46bf1ce9ab45393c43563d576865eb0d4","last_reissued_at":"2026-05-18T00:31:12.465497Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:31:12.465497Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1706.05324","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":"2026-05-18T00:31:12Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"6Tf+RPued2GVnSjRQoQ3cl4jDr9mePXbjU1XywrbabNhoHoHQTnKmcOqslwhJ+jqfSp9xWNlhro0h1+bnOtOCw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-02T06:04:21.519607Z"},"content_sha256":"56fd893f8a99afcd6370f70103d5b8fe6b291e09d5c8526fce648b65941ffe0d","schema_version":"1.0","event_id":"sha256:56fd893f8a99afcd6370f70103d5b8fe6b291e09d5c8526fce648b65941ffe0d"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2017:KRKMOVMOYZOMGG6C2KKBMOLGYR","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Cosmogenic Activation of Germanium Used for Tonne-Scale Rare Event Search Experiments","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["physics.ins-det"],"primary_cat":"nucl-ex","authors_text":"C. Zhang, D.-M. Mei, W.-Z. Wei","submitted_at":"2017-06-16T15:43:35Z","abstract_excerpt":"We report a comprehensive study of cosmogenic activation of germanium used for tonne-scale rare event search experiments. The germanium exposure to cosmic rays on the Earth's surface are simulated with and without a shielding container using Geant4 for a given cosmic muon, neutron, and proton energy spectrum. The production rates of various radioactive isotopes are obtained for different sources separately. We find that fast neutron induced interactions dominate the production rate of cosmogenic activation. Geant4-based simulation results are compared with the calculation of ACTIVIA and the av"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1706.05324","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":"2026-05-18T00:31:12Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"CX6xI6Wpt+uVufGlLOKxKZB2S/mHSA+YQtt1LtNIo6nbrYgekCTdtYGUEAFdMYtyhv17IBdq8xXgDwBqtPDyCg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-02T06:04:21.519956Z"},"content_sha256":"56084b218e69216608d6a7dfbcccd2b3ae93f2566557e7696255bdf3cb56a4b3","schema_version":"1.0","event_id":"sha256:56084b218e69216608d6a7dfbcccd2b3ae93f2566557e7696255bdf3cb56a4b3"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/KRKMOVMOYZOMGG6C2KKBMOLGYR/bundle.json","state_url":"https://pith.science/pith/KRKMOVMOYZOMGG6C2KKBMOLGYR/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/KRKMOVMOYZOMGG6C2KKBMOLGYR/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":"2026-06-02T06:04:21Z","links":{"resolver":"https://pith.science/pith/KRKMOVMOYZOMGG6C2KKBMOLGYR","bundle":"https://pith.science/pith/KRKMOVMOYZOMGG6C2KKBMOLGYR/bundle.json","state":"https://pith.science/pith/KRKMOVMOYZOMGG6C2KKBMOLGYR/state.json","well_known_bundle":"https://pith.science/.well-known/pith/KRKMOVMOYZOMGG6C2KKBMOLGYR/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2017:KRKMOVMOYZOMGG6C2KKBMOLGYR","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":"8b8e5eb6e9ac5cac2fe33ca3b52c2e40fef89cb88ddcc9e1b3e9cba5b6f58b7a","cross_cats_sorted":["physics.ins-det"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"nucl-ex","submitted_at":"2017-06-16T15:43:35Z","title_canon_sha256":"9dd87a3e017f66e4cc5860baac06ae0c75d3303da3c1a333c3f40c498cda1894"},"schema_version":"1.0","source":{"id":"1706.05324","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1706.05324","created_at":"2026-05-18T00:31:12Z"},{"alias_kind":"arxiv_version","alias_value":"1706.05324v2","created_at":"2026-05-18T00:31:12Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1706.05324","created_at":"2026-05-18T00:31:12Z"},{"alias_kind":"pith_short_12","alias_value":"KRKMOVMOYZOM","created_at":"2026-05-18T12:31:28Z"},{"alias_kind":"pith_short_16","alias_value":"KRKMOVMOYZOMGG6C","created_at":"2026-05-18T12:31:28Z"},{"alias_kind":"pith_short_8","alias_value":"KRKMOVMO","created_at":"2026-05-18T12:31:28Z"}],"graph_snapshots":[{"event_id":"sha256:56084b218e69216608d6a7dfbcccd2b3ae93f2566557e7696255bdf3cb56a4b3","target":"graph","created_at":"2026-05-18T00:31:12Z","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":"We report a comprehensive study of cosmogenic activation of germanium used for tonne-scale rare event search experiments. The germanium exposure to cosmic rays on the Earth's surface are simulated with and without a shielding container using Geant4 for a given cosmic muon, neutron, and proton energy spectrum. The production rates of various radioactive isotopes are obtained for different sources separately. We find that fast neutron induced interactions dominate the production rate of cosmogenic activation. Geant4-based simulation results are compared with the calculation of ACTIVIA and the av","authors_text":"C. Zhang, D.-M. Mei, W.-Z. Wei","cross_cats":["physics.ins-det"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"nucl-ex","submitted_at":"2017-06-16T15:43:35Z","title":"Cosmogenic Activation of Germanium Used for Tonne-Scale Rare Event Search Experiments"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1706.05324","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":"sha256:56fd893f8a99afcd6370f70103d5b8fe6b291e09d5c8526fce648b65941ffe0d","target":"record","created_at":"2026-05-18T00:31:12Z","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":"8b8e5eb6e9ac5cac2fe33ca3b52c2e40fef89cb88ddcc9e1b3e9cba5b6f58b7a","cross_cats_sorted":["physics.ins-det"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"nucl-ex","submitted_at":"2017-06-16T15:43:35Z","title_canon_sha256":"9dd87a3e017f66e4cc5860baac06ae0c75d3303da3c1a333c3f40c498cda1894"},"schema_version":"1.0","source":{"id":"1706.05324","kind":"arxiv","version":2}},"canonical_sha256":"5454c7558ec65cc31bc2d294163966c46bf1ce9ab45393c43563d576865eb0d4","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"5454c7558ec65cc31bc2d294163966c46bf1ce9ab45393c43563d576865eb0d4","first_computed_at":"2026-05-18T00:31:12.465497Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:31:12.465497Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"7sj8FY+dcJDVY7lGqIs/9hqcjMbPJBMvHRR7r+d/ZG+Oxeh2Lj0qBQwooEvZWqonZCo9l1BBwF2WrT1nOwfzBg==","signature_status":"signed_v1","signed_at":"2026-05-18T00:31:12.466235Z","signed_message":"canonical_sha256_bytes"},"source_id":"1706.05324","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:56fd893f8a99afcd6370f70103d5b8fe6b291e09d5c8526fce648b65941ffe0d","sha256:56084b218e69216608d6a7dfbcccd2b3ae93f2566557e7696255bdf3cb56a4b3"],"state_sha256":"cbb7761b79c7f1ac7add2c8747d6eecbdbc0b621596436daf542b938a4bba561"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"pfQeIuFLV1a99UrMJuPfuPHNc5ps6akKi3q/QM4rnHqCHob9bTchVwUyojxcM7/ZTxvtPSuH8Y5YMDc5EBaZCw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-02T06:04:21.522362Z","bundle_sha256":"a0273e9beccabeeb07dcea0e50f2c8ec12f54639a3a4eec2ffda4e294736cc12"}}