{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2025:CUK5XQ2VKKTVJJZ3Q5PMMYIPKT","short_pith_number":"pith:CUK5XQ2V","canonical_record":{"source":{"id":"2503.00585","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ex","submitted_at":"2025-03-01T18:40:21Z","cross_cats_sorted":[],"title_canon_sha256":"be66394e4b130cfc25bc98e84d0b39a59e1049743dba652c57a89a157baca5c6","abstract_canon_sha256":"53f83e7ce8d4159ef9bd4455046d9b5701d42e2fa840bde52ab194cf3758e710"},"schema_version":"1.0"},"canonical_sha256":"1515dbc35552a754a73b875ec6610f54fe1f37edffd45293bf0206438d886745","source":{"kind":"arxiv","id":"2503.00585","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2503.00585","created_at":"2026-07-05T11:27:24Z"},{"alias_kind":"arxiv_version","alias_value":"2503.00585v2","created_at":"2026-07-05T11:27:24Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2503.00585","created_at":"2026-07-05T11:27:24Z"},{"alias_kind":"pith_short_12","alias_value":"CUK5XQ2VKKTV","created_at":"2026-07-05T11:27:24Z"},{"alias_kind":"pith_short_16","alias_value":"CUK5XQ2VKKTVJJZ3","created_at":"2026-07-05T11:27:24Z"},{"alias_kind":"pith_short_8","alias_value":"CUK5XQ2V","created_at":"2026-07-05T11:27:24Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2025:CUK5XQ2VKKTVJJZ3Q5PMMYIPKT","target":"record","payload":{"canonical_record":{"source":{"id":"2503.00585","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ex","submitted_at":"2025-03-01T18:40:21Z","cross_cats_sorted":[],"title_canon_sha256":"be66394e4b130cfc25bc98e84d0b39a59e1049743dba652c57a89a157baca5c6","abstract_canon_sha256":"53f83e7ce8d4159ef9bd4455046d9b5701d42e2fa840bde52ab194cf3758e710"},"schema_version":"1.0"},"canonical_sha256":"1515dbc35552a754a73b875ec6610f54fe1f37edffd45293bf0206438d886745","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T11:27:24.627946Z","signature_b64":"0YOLU/HYdsGdsDK4ixoIOgXjI+y727CAN581hby85g7/qEjjhQGJ8Q1UtwQyUlMMdh5fFM7NOzRa8Fa2V4GoBQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"1515dbc35552a754a73b875ec6610f54fe1f37edffd45293bf0206438d886745","last_reissued_at":"2026-07-05T11:27:24.627446Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T11:27:24.627446Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2503.00585","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":"2026-07-05T11:27:24Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"M2KhzYpAublErpre3wE1iA2gOewDNjmC5bsfeuio/MYP6vjOgtGyLbe7sXfUGyEylDGqAoqe4I11o3TzmJxRCQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-11T02:33:50.200950Z"},"content_sha256":"8730e684125c27a048ff548ec3735d04a839b42a73524f4911ca430f9d26383d","schema_version":"1.0","event_id":"sha256:8730e684125c27a048ff548ec3735d04a839b42a73524f4911ca430f9d26383d"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2025:CUK5XQ2VKKTVJJZ3Q5PMMYIPKT","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Applying Geant4's Importance Biasing to improve the efficiency of SuperCDMS background simulations","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"hep-ex","authors_text":"A. J. Biffl, B. Zatschler, D. S. Pedreros, J. Hall, M. D. Diamond, M. H. Kelsey, R. Calkins, S. A. S. Harms, S. Zatschler","submitted_at":"2025-03-01T18:40:21Z","abstract_excerpt":"Experiments searching for extremely rare events surround their sensitive detectors with several layers of different shielding materials to protect them from external radiation and to achieve their low-background requirements to be able to observe a potential signal. Standard Monte Carlo simulations that propagate particles through the thick shielding, usually do not penetrate the shield in sufficient numbers to properly model the external background, which is crucial for understanding the experiment's background composition.\n  Geant4 is a widely used toolkit to simulate the passage of particle"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2503.00585","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/2503.00585/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":"2026-07-05T11:27:24Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"a0OjGIVdbyxgmAUsAonhY7+tUaE/Jz259wfc1P5u7eZQ2RvqaUNLuWR0wkkTem8owBPczBSDidzJ2hBI6QVyDw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-11T02:33:50.202067Z"},"content_sha256":"b27f55125100d68fc460efc6fa8881f64647c08ac017f7cac61b105402354df4","schema_version":"1.0","event_id":"sha256:b27f55125100d68fc460efc6fa8881f64647c08ac017f7cac61b105402354df4"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/CUK5XQ2VKKTVJJZ3Q5PMMYIPKT/bundle.json","state_url":"https://pith.science/pith/CUK5XQ2VKKTVJJZ3Q5PMMYIPKT/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/CUK5XQ2VKKTVJJZ3Q5PMMYIPKT/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":"2026-08-11T02:33:50Z","links":{"resolver":"https://pith.science/pith/CUK5XQ2VKKTVJJZ3Q5PMMYIPKT","bundle":"https://pith.science/pith/CUK5XQ2VKKTVJJZ3Q5PMMYIPKT/bundle.json","state":"https://pith.science/pith/CUK5XQ2VKKTVJJZ3Q5PMMYIPKT/state.json","well_known_bundle":"https://pith.science/.well-known/pith/CUK5XQ2VKKTVJJZ3Q5PMMYIPKT/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2025:CUK5XQ2VKKTVJJZ3Q5PMMYIPKT","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":"53f83e7ce8d4159ef9bd4455046d9b5701d42e2fa840bde52ab194cf3758e710","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ex","submitted_at":"2025-03-01T18:40:21Z","title_canon_sha256":"be66394e4b130cfc25bc98e84d0b39a59e1049743dba652c57a89a157baca5c6"},"schema_version":"1.0","source":{"id":"2503.00585","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2503.00585","created_at":"2026-07-05T11:27:24Z"},{"alias_kind":"arxiv_version","alias_value":"2503.00585v2","created_at":"2026-07-05T11:27:24Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2503.00585","created_at":"2026-07-05T11:27:24Z"},{"alias_kind":"pith_short_12","alias_value":"CUK5XQ2VKKTV","created_at":"2026-07-05T11:27:24Z"},{"alias_kind":"pith_short_16","alias_value":"CUK5XQ2VKKTVJJZ3","created_at":"2026-07-05T11:27:24Z"},{"alias_kind":"pith_short_8","alias_value":"CUK5XQ2V","created_at":"2026-07-05T11:27:24Z"}],"graph_snapshots":[{"event_id":"sha256:b27f55125100d68fc460efc6fa8881f64647c08ac017f7cac61b105402354df4","target":"graph","created_at":"2026-07-05T11:27:24Z","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/2503.00585/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Experiments searching for extremely rare events surround their sensitive detectors with several layers of different shielding materials to protect them from external radiation and to achieve their low-background requirements to be able to observe a potential signal. Standard Monte Carlo simulations that propagate particles through the thick shielding, usually do not penetrate the shield in sufficient numbers to properly model the external background, which is crucial for understanding the experiment's background composition.\n  Geant4 is a widely used toolkit to simulate the passage of particle","authors_text":"A. J. Biffl, B. Zatschler, D. S. Pedreros, J. Hall, M. D. Diamond, M. H. Kelsey, R. Calkins, S. A. S. Harms, S. Zatschler","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ex","submitted_at":"2025-03-01T18:40:21Z","title":"Applying Geant4's Importance Biasing to improve the efficiency of SuperCDMS background simulations"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2503.00585","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":"sha256:8730e684125c27a048ff548ec3735d04a839b42a73524f4911ca430f9d26383d","target":"record","created_at":"2026-07-05T11:27:24Z","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":"53f83e7ce8d4159ef9bd4455046d9b5701d42e2fa840bde52ab194cf3758e710","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ex","submitted_at":"2025-03-01T18:40:21Z","title_canon_sha256":"be66394e4b130cfc25bc98e84d0b39a59e1049743dba652c57a89a157baca5c6"},"schema_version":"1.0","source":{"id":"2503.00585","kind":"arxiv","version":2}},"canonical_sha256":"1515dbc35552a754a73b875ec6610f54fe1f37edffd45293bf0206438d886745","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"1515dbc35552a754a73b875ec6610f54fe1f37edffd45293bf0206438d886745","first_computed_at":"2026-07-05T11:27:24.627446Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T11:27:24.627446Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"0YOLU/HYdsGdsDK4ixoIOgXjI+y727CAN581hby85g7/qEjjhQGJ8Q1UtwQyUlMMdh5fFM7NOzRa8Fa2V4GoBQ==","signature_status":"signed_v1","signed_at":"2026-07-05T11:27:24.627946Z","signed_message":"canonical_sha256_bytes"},"source_id":"2503.00585","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:8730e684125c27a048ff548ec3735d04a839b42a73524f4911ca430f9d26383d","sha256:b27f55125100d68fc460efc6fa8881f64647c08ac017f7cac61b105402354df4"],"state_sha256":"772750748c91ec2e0c779b2a93300ffeb7295f5b85e878eb1b8134139d429933"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Fqgo9rMZ0f6wejUZjJhd5slXm1iuypvsmeIZhZ2rpie2Adx0CwJtRkq9IZH3bW5Nz6igTdOxFUWP4kjZD1XJBQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-11T02:33:50.207409Z","bundle_sha256":"4b270324fdd47e7ae00724aeccf9f2153229da796e2cff62970dd0fde7bd061b"}}