{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2015:H66IZ4HC4WLK4SJFXREG33PDLK","short_pith_number":"pith:H66IZ4HC","canonical_record":{"source":{"id":"1501.07581","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/3.0/","primary_cat":"physics.acc-ph","submitted_at":"2015-01-29T20:34:04Z","cross_cats_sorted":["physics.ins-det"],"title_canon_sha256":"f3062d0149fe1bb9792745ad1e203e0c3ddc2dba74689f8aed98b484ba48bc68","abstract_canon_sha256":"21e7129420dfd70c22a407a543225388625b7f822ff1ead675da35d6437ae5aa"},"schema_version":"1.0"},"canonical_sha256":"3fbc8cf0e2e596ae4925bc486dede35aa5d119ffcb7c810338ae9e3e40628961","source":{"kind":"arxiv","id":"1501.07581","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1501.07581","created_at":"2026-05-18T02:28:21Z"},{"alias_kind":"arxiv_version","alias_value":"1501.07581v1","created_at":"2026-05-18T02:28:21Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1501.07581","created_at":"2026-05-18T02:28:21Z"},{"alias_kind":"pith_short_12","alias_value":"H66IZ4HC4WLK","created_at":"2026-05-18T12:29:22Z"},{"alias_kind":"pith_short_16","alias_value":"H66IZ4HC4WLK4SJF","created_at":"2026-05-18T12:29:22Z"},{"alias_kind":"pith_short_8","alias_value":"H66IZ4HC","created_at":"2026-05-18T12:29:22Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2015:H66IZ4HC4WLK4SJFXREG33PDLK","target":"record","payload":{"canonical_record":{"source":{"id":"1501.07581","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/3.0/","primary_cat":"physics.acc-ph","submitted_at":"2015-01-29T20:34:04Z","cross_cats_sorted":["physics.ins-det"],"title_canon_sha256":"f3062d0149fe1bb9792745ad1e203e0c3ddc2dba74689f8aed98b484ba48bc68","abstract_canon_sha256":"21e7129420dfd70c22a407a543225388625b7f822ff1ead675da35d6437ae5aa"},"schema_version":"1.0"},"canonical_sha256":"3fbc8cf0e2e596ae4925bc486dede35aa5d119ffcb7c810338ae9e3e40628961","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:28:21.568735Z","signature_b64":"1NeS4Ofli9XJYnFNdPvVdsDYdRItFmLyBLkVuQfqXlnJ9xmO9IQFv/AArkHyzowRxZE4MZnVUSdd/tHULiLrAw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"3fbc8cf0e2e596ae4925bc486dede35aa5d119ffcb7c810338ae9e3e40628961","last_reissued_at":"2026-05-18T02:28:21.568228Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:28:21.568228Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1501.07581","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":"2026-05-18T02:28:21Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"XmtK+Cfa+DxbvcjxBsPhM7v60zs6YJutTLuteHw8n8y9GmeAVMaCxoDWMEFQOapgY0aqvLrvk2j3qHhtIU0XDg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-05T04:50:26.674540Z"},"content_sha256":"a8da111a9436c4be643a0588eaed2c06de7d2d3c55809c852d6a968bd38cf73d","schema_version":"1.0","event_id":"sha256:a8da111a9436c4be643a0588eaed2c06de7d2d3c55809c852d6a968bd38cf73d"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2015:H66IZ4HC4WLK4SJFXREG33PDLK","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Energy deposition studies for the LBNE beam absorber","license":"http://creativecommons.org/licenses/by/3.0/","headline":"","cross_cats":["physics.ins-det"],"primary_cat":"physics.acc-ph","authors_text":"Igor L. Rakhno, Igor S. Tropin (Fermilab), Nikolai V. Mokhov","submitted_at":"2015-01-29T20:34:04Z","abstract_excerpt":"Results of detailed Monte Carlo energy deposition studies performed for the LBNE absorber core and the surrounding shielding with the MARS15 code are described. The model of the entire facility, that includes a pion-production target, focusing horns, target chase, decay channel, hadron absorber system -- all with corresponding radiation shielding -- was developed using the recently implemented ROOT-based geometry option in the MARS15 code. This option provides substantial flexibility and automation when developing complex geometry models. Both normal operation and accidental conditions were st"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1501.07581","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":""},"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":"2026-05-18T02:28:21Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"37cC+KITnxYFNy1LpsC1YdN9Ms7RttcU0MPS2h8QZoQL/Tsa8sldD2V+hUnSiskebYxZR+8DGNwBczbZS278AQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-05T04:50:26.675227Z"},"content_sha256":"e22a76b4a476c0568a967b22c3369bc24536a9520817fcca15064e63e67c38bb","schema_version":"1.0","event_id":"sha256:e22a76b4a476c0568a967b22c3369bc24536a9520817fcca15064e63e67c38bb"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/H66IZ4HC4WLK4SJFXREG33PDLK/bundle.json","state_url":"https://pith.science/pith/H66IZ4HC4WLK4SJFXREG33PDLK/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/H66IZ4HC4WLK4SJFXREG33PDLK/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":"2026-06-05T04:50:26Z","links":{"resolver":"https://pith.science/pith/H66IZ4HC4WLK4SJFXREG33PDLK","bundle":"https://pith.science/pith/H66IZ4HC4WLK4SJFXREG33PDLK/bundle.json","state":"https://pith.science/pith/H66IZ4HC4WLK4SJFXREG33PDLK/state.json","well_known_bundle":"https://pith.science/.well-known/pith/H66IZ4HC4WLK4SJFXREG33PDLK/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2015:H66IZ4HC4WLK4SJFXREG33PDLK","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":"21e7129420dfd70c22a407a543225388625b7f822ff1ead675da35d6437ae5aa","cross_cats_sorted":["physics.ins-det"],"license":"http://creativecommons.org/licenses/by/3.0/","primary_cat":"physics.acc-ph","submitted_at":"2015-01-29T20:34:04Z","title_canon_sha256":"f3062d0149fe1bb9792745ad1e203e0c3ddc2dba74689f8aed98b484ba48bc68"},"schema_version":"1.0","source":{"id":"1501.07581","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1501.07581","created_at":"2026-05-18T02:28:21Z"},{"alias_kind":"arxiv_version","alias_value":"1501.07581v1","created_at":"2026-05-18T02:28:21Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1501.07581","created_at":"2026-05-18T02:28:21Z"},{"alias_kind":"pith_short_12","alias_value":"H66IZ4HC4WLK","created_at":"2026-05-18T12:29:22Z"},{"alias_kind":"pith_short_16","alias_value":"H66IZ4HC4WLK4SJF","created_at":"2026-05-18T12:29:22Z"},{"alias_kind":"pith_short_8","alias_value":"H66IZ4HC","created_at":"2026-05-18T12:29:22Z"}],"graph_snapshots":[{"event_id":"sha256:e22a76b4a476c0568a967b22c3369bc24536a9520817fcca15064e63e67c38bb","target":"graph","created_at":"2026-05-18T02:28:21Z","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":"Results of detailed Monte Carlo energy deposition studies performed for the LBNE absorber core and the surrounding shielding with the MARS15 code are described. The model of the entire facility, that includes a pion-production target, focusing horns, target chase, decay channel, hadron absorber system -- all with corresponding radiation shielding -- was developed using the recently implemented ROOT-based geometry option in the MARS15 code. This option provides substantial flexibility and automation when developing complex geometry models. Both normal operation and accidental conditions were st","authors_text":"Igor L. Rakhno, Igor S. Tropin (Fermilab), Nikolai V. Mokhov","cross_cats":["physics.ins-det"],"headline":"","license":"http://creativecommons.org/licenses/by/3.0/","primary_cat":"physics.acc-ph","submitted_at":"2015-01-29T20:34:04Z","title":"Energy deposition studies for the LBNE beam absorber"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1501.07581","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:a8da111a9436c4be643a0588eaed2c06de7d2d3c55809c852d6a968bd38cf73d","target":"record","created_at":"2026-05-18T02:28:21Z","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":"21e7129420dfd70c22a407a543225388625b7f822ff1ead675da35d6437ae5aa","cross_cats_sorted":["physics.ins-det"],"license":"http://creativecommons.org/licenses/by/3.0/","primary_cat":"physics.acc-ph","submitted_at":"2015-01-29T20:34:04Z","title_canon_sha256":"f3062d0149fe1bb9792745ad1e203e0c3ddc2dba74689f8aed98b484ba48bc68"},"schema_version":"1.0","source":{"id":"1501.07581","kind":"arxiv","version":1}},"canonical_sha256":"3fbc8cf0e2e596ae4925bc486dede35aa5d119ffcb7c810338ae9e3e40628961","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"3fbc8cf0e2e596ae4925bc486dede35aa5d119ffcb7c810338ae9e3e40628961","first_computed_at":"2026-05-18T02:28:21.568228Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:28:21.568228Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"1NeS4Ofli9XJYnFNdPvVdsDYdRItFmLyBLkVuQfqXlnJ9xmO9IQFv/AArkHyzowRxZE4MZnVUSdd/tHULiLrAw==","signature_status":"signed_v1","signed_at":"2026-05-18T02:28:21.568735Z","signed_message":"canonical_sha256_bytes"},"source_id":"1501.07581","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:a8da111a9436c4be643a0588eaed2c06de7d2d3c55809c852d6a968bd38cf73d","sha256:e22a76b4a476c0568a967b22c3369bc24536a9520817fcca15064e63e67c38bb"],"state_sha256":"0084ac17078338e8a2566153fa9eb3bbc6efc7f844973366b76a5c6c5ddf0e3d"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"AsgPtXMhLQqLuVQ9zUOGNt9UCKp8K/5n0jqjSITeHTEZOfFjH3dJ+OjZQUtHMh+xx9yvA0QcIrNtUqECXq8rDw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-05T04:50:26.678921Z","bundle_sha256":"9d8878b5a0ec07df0aa72f1809835478537e31734db9f545250beacb209b6504"}}