{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2001:4ICXBMJMKUCSTYCGWXWMFDTI3I","short_pith_number":"pith:4ICXBMJM","canonical_record":{"source":{"id":"hep-ex/0111021","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"hep-ex","submitted_at":"2001-11-07T09:24:28Z","cross_cats_sorted":[],"title_canon_sha256":"e1e40b860f6e9034163a04802409c789d0dde4da69d6d12c0beda7cdfc4fd930","abstract_canon_sha256":"7e195428431657f70ac8375ecd64a28457ba29095c78ba771ea826f05173c192"},"schema_version":"1.0"},"canonical_sha256":"e20570b12c550529e046b5ecc28e68da0989b1c90edabb173f7b6292d8931021","source":{"kind":"arxiv","id":"hep-ex/0111021","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"hep-ex/0111021","created_at":"2026-07-04T14:26:33Z"},{"alias_kind":"arxiv_version","alias_value":"hep-ex/0111021v1","created_at":"2026-07-04T14:26:33Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.hep-ex/0111021","created_at":"2026-07-04T14:26:33Z"},{"alias_kind":"pith_short_12","alias_value":"4ICXBMJMKUCS","created_at":"2026-07-04T14:26:33Z"},{"alias_kind":"pith_short_16","alias_value":"4ICXBMJMKUCSTYCG","created_at":"2026-07-04T14:26:33Z"},{"alias_kind":"pith_short_8","alias_value":"4ICXBMJM","created_at":"2026-07-04T14:26:33Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2001:4ICXBMJMKUCSTYCGWXWMFDTI3I","target":"record","payload":{"canonical_record":{"source":{"id":"hep-ex/0111021","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"hep-ex","submitted_at":"2001-11-07T09:24:28Z","cross_cats_sorted":[],"title_canon_sha256":"e1e40b860f6e9034163a04802409c789d0dde4da69d6d12c0beda7cdfc4fd930","abstract_canon_sha256":"7e195428431657f70ac8375ecd64a28457ba29095c78ba771ea826f05173c192"},"schema_version":"1.0"},"canonical_sha256":"e20570b12c550529e046b5ecc28e68da0989b1c90edabb173f7b6292d8931021","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-04T14:26:33.564788Z","signature_b64":"En28smyagmv32J0huy2ug8nyfdfnSBThXgemQdoAUaj5nndNJu7ow8QPc8CwP+5TsfLxlftCL5s/CVe3EzThAw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"e20570b12c550529e046b5ecc28e68da0989b1c90edabb173f7b6292d8931021","last_reissued_at":"2026-07-04T14:26:33.564383Z","signature_status":"signed_v1","first_computed_at":"2026-07-04T14:26:33.564383Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"hep-ex/0111021","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":"2026-07-04T14:26:33Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"2+ebHD2KtOry++dF+UnqJ29AONZfq6drKMupKlSv34LEzGTo6w7E+wLLlLxbREQX3H/v7l1N3k0Ilqrq8GhGBA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-07T08:28:48.522295Z"},"content_sha256":"7b58b5c7291ab67b9a6cd218efe36a11e9eec653013d89046d8b2045ea908881","schema_version":"1.0","event_id":"sha256:7b58b5c7291ab67b9a6cd218efe36a11e9eec653013d89046d8b2045ea908881"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2001:4ICXBMJMKUCSTYCGWXWMFDTI3I","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"A study of RHIC crystal collimation","license":"","headline":"","cross_cats":[],"primary_cat":"hep-ex","authors_text":"A. Drozhdin, A. Stevens, B. Parker, D.Trbojevic, M. Harrison, N. Mokhov, P. Thompson, V. M. Biryukov","submitted_at":"2001-11-07T09:24:28Z","abstract_excerpt":"The Relativistic Heavy Ion Collider (RHIC) will experience increasing longitudinal and transverse heavy ion emittances, mostly due to intra-beam scattering (IBS). The experiments in RHIC are expected to not only have reduced luminosities due to IBS but also an unwanted beam halo. Primary betatron collimators will be used to remove the large amplitude particles. The efficiency of the primary collimator in RHIC depends very much on the alignment of the jaws which needs to be within few micro-radians for the best conditions. As proposed by V. Biryukov bent crystals could be used to improve the ef"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"hep-ex/0111021","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/hep-ex/0111021/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":"2026-07-04T14:26:33Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"bKTcIjFxGq0avg95zQRUHD1+XD5PhTdwZKO6cY2AXca0PZWAaN1inn9os8KD2bX9A/PXBt0ubCOn+7NpB1y8Aw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-07T08:28:48.523832Z"},"content_sha256":"2be4eae985c0fb8a003021c026068422667e202b77cc6b8dab2916420bf1e79f","schema_version":"1.0","event_id":"sha256:2be4eae985c0fb8a003021c026068422667e202b77cc6b8dab2916420bf1e79f"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/4ICXBMJMKUCSTYCGWXWMFDTI3I/bundle.json","state_url":"https://pith.science/pith/4ICXBMJMKUCSTYCGWXWMFDTI3I/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/4ICXBMJMKUCSTYCGWXWMFDTI3I/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":"2026-08-07T08:28:48Z","links":{"resolver":"https://pith.science/pith/4ICXBMJMKUCSTYCGWXWMFDTI3I","bundle":"https://pith.science/pith/4ICXBMJMKUCSTYCGWXWMFDTI3I/bundle.json","state":"https://pith.science/pith/4ICXBMJMKUCSTYCGWXWMFDTI3I/state.json","well_known_bundle":"https://pith.science/.well-known/pith/4ICXBMJMKUCSTYCGWXWMFDTI3I/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2001:4ICXBMJMKUCSTYCGWXWMFDTI3I","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":"7e195428431657f70ac8375ecd64a28457ba29095c78ba771ea826f05173c192","cross_cats_sorted":[],"license":"","primary_cat":"hep-ex","submitted_at":"2001-11-07T09:24:28Z","title_canon_sha256":"e1e40b860f6e9034163a04802409c789d0dde4da69d6d12c0beda7cdfc4fd930"},"schema_version":"1.0","source":{"id":"hep-ex/0111021","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"hep-ex/0111021","created_at":"2026-07-04T14:26:33Z"},{"alias_kind":"arxiv_version","alias_value":"hep-ex/0111021v1","created_at":"2026-07-04T14:26:33Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.hep-ex/0111021","created_at":"2026-07-04T14:26:33Z"},{"alias_kind":"pith_short_12","alias_value":"4ICXBMJMKUCS","created_at":"2026-07-04T14:26:33Z"},{"alias_kind":"pith_short_16","alias_value":"4ICXBMJMKUCSTYCG","created_at":"2026-07-04T14:26:33Z"},{"alias_kind":"pith_short_8","alias_value":"4ICXBMJM","created_at":"2026-07-04T14:26:33Z"}],"graph_snapshots":[{"event_id":"sha256:2be4eae985c0fb8a003021c026068422667e202b77cc6b8dab2916420bf1e79f","target":"graph","created_at":"2026-07-04T14:26:33Z","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/hep-ex/0111021/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"The Relativistic Heavy Ion Collider (RHIC) will experience increasing longitudinal and transverse heavy ion emittances, mostly due to intra-beam scattering (IBS). The experiments in RHIC are expected to not only have reduced luminosities due to IBS but also an unwanted beam halo. Primary betatron collimators will be used to remove the large amplitude particles. The efficiency of the primary collimator in RHIC depends very much on the alignment of the jaws which needs to be within few micro-radians for the best conditions. As proposed by V. Biryukov bent crystals could be used to improve the ef","authors_text":"A. Drozhdin, A. Stevens, B. Parker, D.Trbojevic, M. Harrison, N. Mokhov, P. Thompson, V. M. Biryukov","cross_cats":[],"headline":"","license":"","primary_cat":"hep-ex","submitted_at":"2001-11-07T09:24:28Z","title":"A study of RHIC crystal collimation"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"hep-ex/0111021","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":"sha256:7b58b5c7291ab67b9a6cd218efe36a11e9eec653013d89046d8b2045ea908881","target":"record","created_at":"2026-07-04T14:26:33Z","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":"7e195428431657f70ac8375ecd64a28457ba29095c78ba771ea826f05173c192","cross_cats_sorted":[],"license":"","primary_cat":"hep-ex","submitted_at":"2001-11-07T09:24:28Z","title_canon_sha256":"e1e40b860f6e9034163a04802409c789d0dde4da69d6d12c0beda7cdfc4fd930"},"schema_version":"1.0","source":{"id":"hep-ex/0111021","kind":"arxiv","version":1}},"canonical_sha256":"e20570b12c550529e046b5ecc28e68da0989b1c90edabb173f7b6292d8931021","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"e20570b12c550529e046b5ecc28e68da0989b1c90edabb173f7b6292d8931021","first_computed_at":"2026-07-04T14:26:33.564383Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-04T14:26:33.564383Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"En28smyagmv32J0huy2ug8nyfdfnSBThXgemQdoAUaj5nndNJu7ow8QPc8CwP+5TsfLxlftCL5s/CVe3EzThAw==","signature_status":"signed_v1","signed_at":"2026-07-04T14:26:33.564788Z","signed_message":"canonical_sha256_bytes"},"source_id":"hep-ex/0111021","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:7b58b5c7291ab67b9a6cd218efe36a11e9eec653013d89046d8b2045ea908881","sha256:2be4eae985c0fb8a003021c026068422667e202b77cc6b8dab2916420bf1e79f"],"state_sha256":"34ec2f5e7e6795652eb23d87cd69cc0003a58030312ad022e08ce183e7d045f8"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"HTk8pkCsd7/fqz3mXj8wxe8UQjGMXsm/e0e0h/H2Xde+HMlJkgRRRf15uJyDBIB92NQCKMqJbld/ZlgDVm8KBA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-07T08:28:48.529342Z","bundle_sha256":"1b5559b88e053a4835464e7ad387456120592e60a90fb3df7d4253fff2471ae9"}}