{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2010:R5GJ5JINRAHJHAC7MPWKNWRXWE","short_pith_number":"pith:R5GJ5JIN","canonical_record":{"source":{"id":"1011.2537","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.acc-ph","submitted_at":"2010-11-11T00:22:39Z","cross_cats_sorted":["hep-ph"],"title_canon_sha256":"46e18015565d5c00f822a4abb354c32ac542bbdd4956508faba6481a850304f7","abstract_canon_sha256":"18b1a121c9ad6e28f3ccdb765cda23fc3d66f3d06144c0923883e455ee04fe20"},"schema_version":"1.0"},"canonical_sha256":"8f4c9ea50d880e93805f63eca6da37b13d07726f36b319b5bcb72f9525547029","source":{"kind":"arxiv","id":"1011.2537","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1011.2537","created_at":"2026-05-18T04:36:08Z"},{"alias_kind":"arxiv_version","alias_value":"1011.2537v1","created_at":"2026-05-18T04:36:08Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1011.2537","created_at":"2026-05-18T04:36:08Z"},{"alias_kind":"pith_short_12","alias_value":"R5GJ5JINRAHJ","created_at":"2026-05-18T12:26:13Z"},{"alias_kind":"pith_short_16","alias_value":"R5GJ5JINRAHJHAC7","created_at":"2026-05-18T12:26:13Z"},{"alias_kind":"pith_short_8","alias_value":"R5GJ5JIN","created_at":"2026-05-18T12:26:13Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2010:R5GJ5JINRAHJHAC7MPWKNWRXWE","target":"record","payload":{"canonical_record":{"source":{"id":"1011.2537","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.acc-ph","submitted_at":"2010-11-11T00:22:39Z","cross_cats_sorted":["hep-ph"],"title_canon_sha256":"46e18015565d5c00f822a4abb354c32ac542bbdd4956508faba6481a850304f7","abstract_canon_sha256":"18b1a121c9ad6e28f3ccdb765cda23fc3d66f3d06144c0923883e455ee04fe20"},"schema_version":"1.0"},"canonical_sha256":"8f4c9ea50d880e93805f63eca6da37b13d07726f36b319b5bcb72f9525547029","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T04:36:08.267526Z","signature_b64":"gtg6lc1yQGLATJjAstS4lq+pBJ3SQbuDAqF5fZQyv0o8hvHgozsHfpMFkx/oQLIXaO8YhE+wmxd/JFe308SCBw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"8f4c9ea50d880e93805f63eca6da37b13d07726f36b319b5bcb72f9525547029","last_reissued_at":"2026-05-18T04:36:08.266937Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T04:36:08.266937Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1011.2537","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":"2026-05-18T04:36:08Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"SDqVavtcv0pzofNiSljPM/fZeHgB4RTKM8qMQI+A5QDPUYZQJn5ypSj6xznkWU2a7BjxCO3akwDUzSSTG3UZDA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-27T14:10:54.050753Z"},"content_sha256":"af89b5d78f43b1d325d7e9009920fde121a5b9152b69f45226c242b7e82a37bf","schema_version":"1.0","event_id":"sha256:af89b5d78f43b1d325d7e9009920fde121a5b9152b69f45226c242b7e82a37bf"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2010:R5GJ5JINRAHJHAC7MPWKNWRXWE","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Towards the optimal energy of the proton driver for a neutrino factory and muon collider","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["hep-ph"],"primary_cat":"physics.acc-ph","authors_text":"J. Strait, N.V. Mokhov, S. I. Striganov","submitted_at":"2010-11-11T00:22:39Z","abstract_excerpt":"Cross section data from the HARP experiment for pion production by protons from a tantalum target have been convoluted with the acceptance of the front-end channel for the proposed neutrino factory or muon collider and integrated over the full phase space measured by HARP, to determine the beam-energy dependence of the muon yield. This permits a determination of the optimal beam energy for the proton driver for these projects. The cross section data are corrected for the beam-energy dependent amplification due to the development of hadronic showers in a thick target. The conclusion is that, fo"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1011.2537","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":"2026-05-18T04:36:08Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"tZl7qokAWEAxI3r5lLKqX66pl3g/rygtFaAd8MTIQaxGiXZYMwpINu0+gS6o9HSJ8LmfcD0pdWbc5HxEce0tDg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-27T14:10:54.051299Z"},"content_sha256":"017c562cf9faa1dff9084bc23d08f98fc4017e076eab4e8d10455dd2e9d793d7","schema_version":"1.0","event_id":"sha256:017c562cf9faa1dff9084bc23d08f98fc4017e076eab4e8d10455dd2e9d793d7"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/R5GJ5JINRAHJHAC7MPWKNWRXWE/bundle.json","state_url":"https://pith.science/pith/R5GJ5JINRAHJHAC7MPWKNWRXWE/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/R5GJ5JINRAHJHAC7MPWKNWRXWE/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":"2026-05-27T14:10:54Z","links":{"resolver":"https://pith.science/pith/R5GJ5JINRAHJHAC7MPWKNWRXWE","bundle":"https://pith.science/pith/R5GJ5JINRAHJHAC7MPWKNWRXWE/bundle.json","state":"https://pith.science/pith/R5GJ5JINRAHJHAC7MPWKNWRXWE/state.json","well_known_bundle":"https://pith.science/.well-known/pith/R5GJ5JINRAHJHAC7MPWKNWRXWE/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2010:R5GJ5JINRAHJHAC7MPWKNWRXWE","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":"18b1a121c9ad6e28f3ccdb765cda23fc3d66f3d06144c0923883e455ee04fe20","cross_cats_sorted":["hep-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.acc-ph","submitted_at":"2010-11-11T00:22:39Z","title_canon_sha256":"46e18015565d5c00f822a4abb354c32ac542bbdd4956508faba6481a850304f7"},"schema_version":"1.0","source":{"id":"1011.2537","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1011.2537","created_at":"2026-05-18T04:36:08Z"},{"alias_kind":"arxiv_version","alias_value":"1011.2537v1","created_at":"2026-05-18T04:36:08Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1011.2537","created_at":"2026-05-18T04:36:08Z"},{"alias_kind":"pith_short_12","alias_value":"R5GJ5JINRAHJ","created_at":"2026-05-18T12:26:13Z"},{"alias_kind":"pith_short_16","alias_value":"R5GJ5JINRAHJHAC7","created_at":"2026-05-18T12:26:13Z"},{"alias_kind":"pith_short_8","alias_value":"R5GJ5JIN","created_at":"2026-05-18T12:26:13Z"}],"graph_snapshots":[{"event_id":"sha256:017c562cf9faa1dff9084bc23d08f98fc4017e076eab4e8d10455dd2e9d793d7","target":"graph","created_at":"2026-05-18T04:36:08Z","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":"Cross section data from the HARP experiment for pion production by protons from a tantalum target have been convoluted with the acceptance of the front-end channel for the proposed neutrino factory or muon collider and integrated over the full phase space measured by HARP, to determine the beam-energy dependence of the muon yield. This permits a determination of the optimal beam energy for the proton driver for these projects. The cross section data are corrected for the beam-energy dependent amplification due to the development of hadronic showers in a thick target. The conclusion is that, fo","authors_text":"J. Strait, N.V. Mokhov, S. I. Striganov","cross_cats":["hep-ph"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.acc-ph","submitted_at":"2010-11-11T00:22:39Z","title":"Towards the optimal energy of the proton driver for a neutrino factory and muon collider"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1011.2537","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:af89b5d78f43b1d325d7e9009920fde121a5b9152b69f45226c242b7e82a37bf","target":"record","created_at":"2026-05-18T04:36:08Z","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":"18b1a121c9ad6e28f3ccdb765cda23fc3d66f3d06144c0923883e455ee04fe20","cross_cats_sorted":["hep-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.acc-ph","submitted_at":"2010-11-11T00:22:39Z","title_canon_sha256":"46e18015565d5c00f822a4abb354c32ac542bbdd4956508faba6481a850304f7"},"schema_version":"1.0","source":{"id":"1011.2537","kind":"arxiv","version":1}},"canonical_sha256":"8f4c9ea50d880e93805f63eca6da37b13d07726f36b319b5bcb72f9525547029","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"8f4c9ea50d880e93805f63eca6da37b13d07726f36b319b5bcb72f9525547029","first_computed_at":"2026-05-18T04:36:08.266937Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T04:36:08.266937Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"gtg6lc1yQGLATJjAstS4lq+pBJ3SQbuDAqF5fZQyv0o8hvHgozsHfpMFkx/oQLIXaO8YhE+wmxd/JFe308SCBw==","signature_status":"signed_v1","signed_at":"2026-05-18T04:36:08.267526Z","signed_message":"canonical_sha256_bytes"},"source_id":"1011.2537","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:af89b5d78f43b1d325d7e9009920fde121a5b9152b69f45226c242b7e82a37bf","sha256:017c562cf9faa1dff9084bc23d08f98fc4017e076eab4e8d10455dd2e9d793d7"],"state_sha256":"d3f28994a157642f90c0188bc33d8fee0523bf52c2ab115cf47fa0056014fa30"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"q9VVEZJVUJoVb6lS/N+G0SxmiiZzdYIsPICIMebUBb0vl20c/8NM9LIb7+MVgNSfBnJ69/4QEOIO/fKz4ssmBQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-27T14:10:54.054487Z","bundle_sha256":"26677fc62358222e79917fe9b54d6535ced5ce26cf5172deea56cefe4b1fc070"}}