{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2009:AFVOF3MQ25BBDS6HIKSD42N74D","short_pith_number":"pith:AFVOF3MQ","canonical_record":{"source":{"id":"0909.2664","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2009-09-14T21:04:38Z","cross_cats_sorted":["hep-ex","nucl-th"],"title_canon_sha256":"d2ba9be63b10e741f6ced05aa5a4d36690c2141d3bb03be2b5da68514e9a537c","abstract_canon_sha256":"7e84abe9e0d834cb240285e0afc083219733189bef739723b758d781e9a7b0ad"},"schema_version":"1.0"},"canonical_sha256":"016ae2ed90d74211cbc742a43e69bfe0e0ce2695456eb180964408e6d1f13222","source":{"kind":"arxiv","id":"0909.2664","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"0909.2664","created_at":"2026-05-18T02:34:30Z"},{"alias_kind":"arxiv_version","alias_value":"0909.2664v2","created_at":"2026-05-18T02:34:30Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0909.2664","created_at":"2026-05-18T02:34:30Z"},{"alias_kind":"pith_short_12","alias_value":"AFVOF3MQ25BB","created_at":"2026-05-18T12:25:58Z"},{"alias_kind":"pith_short_16","alias_value":"AFVOF3MQ25BBDS6H","created_at":"2026-05-18T12:25:58Z"},{"alias_kind":"pith_short_8","alias_value":"AFVOF3MQ","created_at":"2026-05-18T12:25:58Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2009:AFVOF3MQ25BBDS6HIKSD42N74D","target":"record","payload":{"canonical_record":{"source":{"id":"0909.2664","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2009-09-14T21:04:38Z","cross_cats_sorted":["hep-ex","nucl-th"],"title_canon_sha256":"d2ba9be63b10e741f6ced05aa5a4d36690c2141d3bb03be2b5da68514e9a537c","abstract_canon_sha256":"7e84abe9e0d834cb240285e0afc083219733189bef739723b758d781e9a7b0ad"},"schema_version":"1.0"},"canonical_sha256":"016ae2ed90d74211cbc742a43e69bfe0e0ce2695456eb180964408e6d1f13222","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:34:30.057835Z","signature_b64":"4eNThFNUEDxMvlO8d3PEGyktZ/KTnKKYRTuVWCsxbjbUgXLdTebcjePfGXYWNznyoeyYH8c7seMhymtJzLQYCw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"016ae2ed90d74211cbc742a43e69bfe0e0ce2695456eb180964408e6d1f13222","last_reissued_at":"2026-05-18T02:34:30.057253Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:34:30.057253Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"0909.2664","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":"2026-05-18T02:34:30Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"xt7+eIToGImyLLHbD0DCVhdziDiAnp6eDb1Y6R780yJxXmL1S1l2RV18iIMqFVI6SyqYtfVw/VpExhJnOdffCg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-05T23:24:04.732440Z"},"content_sha256":"8f10c44616f71178686ce59a7f6ad1dd9a04b9ee00565465a0d6f63098843e16","schema_version":"1.0","event_id":"sha256:8f10c44616f71178686ce59a7f6ad1dd9a04b9ee00565465a0d6f63098843e16"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2009:AFVOF3MQ25BBDS6HIKSD42N74D","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Nuclear modification factor in p+pb collisions at LHC and saturation","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["hep-ex","nucl-th"],"primary_cat":"hep-ph","authors_text":"Amir H. Rezaeian","submitted_at":"2009-09-14T21:04:38Z","abstract_excerpt":"We provide predictions for the nuclear modification factor R_{pA} for pions and direct photon production in p+A collisions at LHC energy at midrapidity within different saturation models fitted to HERA data. In our approach we have no free parameters to adjust and all model parameters are fitted to other reactions. Our approach gives a rather good description of PHENIX data for R_{pA} for pions. We show that, in various saturation models, the pion Cronin enhancement is replaced by a moderate suppression at LHC energy at midrapidity due to gluon shadowing effects. However, Cronin enhancement of"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0909.2664","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":"2026-05-18T02:34:30Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"kgzCr/TfI63JsescryGeAxdXfA9CG/lHXBHmOzTC2zmuTx+ggzMsHuAnGZH5SnBEt72fNM8TP8jdO//ghyOjCg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-05T23:24:04.733152Z"},"content_sha256":"4224bca8b9fc39664197c54791396ec56b966fecba32a76b76c25fa4158530fc","schema_version":"1.0","event_id":"sha256:4224bca8b9fc39664197c54791396ec56b966fecba32a76b76c25fa4158530fc"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/AFVOF3MQ25BBDS6HIKSD42N74D/bundle.json","state_url":"https://pith.science/pith/AFVOF3MQ25BBDS6HIKSD42N74D/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/AFVOF3MQ25BBDS6HIKSD42N74D/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":"2026-06-05T23:24:04Z","links":{"resolver":"https://pith.science/pith/AFVOF3MQ25BBDS6HIKSD42N74D","bundle":"https://pith.science/pith/AFVOF3MQ25BBDS6HIKSD42N74D/bundle.json","state":"https://pith.science/pith/AFVOF3MQ25BBDS6HIKSD42N74D/state.json","well_known_bundle":"https://pith.science/.well-known/pith/AFVOF3MQ25BBDS6HIKSD42N74D/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2009:AFVOF3MQ25BBDS6HIKSD42N74D","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":"7e84abe9e0d834cb240285e0afc083219733189bef739723b758d781e9a7b0ad","cross_cats_sorted":["hep-ex","nucl-th"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2009-09-14T21:04:38Z","title_canon_sha256":"d2ba9be63b10e741f6ced05aa5a4d36690c2141d3bb03be2b5da68514e9a537c"},"schema_version":"1.0","source":{"id":"0909.2664","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"0909.2664","created_at":"2026-05-18T02:34:30Z"},{"alias_kind":"arxiv_version","alias_value":"0909.2664v2","created_at":"2026-05-18T02:34:30Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0909.2664","created_at":"2026-05-18T02:34:30Z"},{"alias_kind":"pith_short_12","alias_value":"AFVOF3MQ25BB","created_at":"2026-05-18T12:25:58Z"},{"alias_kind":"pith_short_16","alias_value":"AFVOF3MQ25BBDS6H","created_at":"2026-05-18T12:25:58Z"},{"alias_kind":"pith_short_8","alias_value":"AFVOF3MQ","created_at":"2026-05-18T12:25:58Z"}],"graph_snapshots":[{"event_id":"sha256:4224bca8b9fc39664197c54791396ec56b966fecba32a76b76c25fa4158530fc","target":"graph","created_at":"2026-05-18T02:34:30Z","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 provide predictions for the nuclear modification factor R_{pA} for pions and direct photon production in p+A collisions at LHC energy at midrapidity within different saturation models fitted to HERA data. In our approach we have no free parameters to adjust and all model parameters are fitted to other reactions. Our approach gives a rather good description of PHENIX data for R_{pA} for pions. We show that, in various saturation models, the pion Cronin enhancement is replaced by a moderate suppression at LHC energy at midrapidity due to gluon shadowing effects. However, Cronin enhancement of","authors_text":"Amir H. Rezaeian","cross_cats":["hep-ex","nucl-th"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2009-09-14T21:04:38Z","title":"Nuclear modification factor in p+pb collisions at LHC and saturation"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0909.2664","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":"sha256:8f10c44616f71178686ce59a7f6ad1dd9a04b9ee00565465a0d6f63098843e16","target":"record","created_at":"2026-05-18T02:34:30Z","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":"7e84abe9e0d834cb240285e0afc083219733189bef739723b758d781e9a7b0ad","cross_cats_sorted":["hep-ex","nucl-th"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2009-09-14T21:04:38Z","title_canon_sha256":"d2ba9be63b10e741f6ced05aa5a4d36690c2141d3bb03be2b5da68514e9a537c"},"schema_version":"1.0","source":{"id":"0909.2664","kind":"arxiv","version":2}},"canonical_sha256":"016ae2ed90d74211cbc742a43e69bfe0e0ce2695456eb180964408e6d1f13222","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"016ae2ed90d74211cbc742a43e69bfe0e0ce2695456eb180964408e6d1f13222","first_computed_at":"2026-05-18T02:34:30.057253Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:34:30.057253Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"4eNThFNUEDxMvlO8d3PEGyktZ/KTnKKYRTuVWCsxbjbUgXLdTebcjePfGXYWNznyoeyYH8c7seMhymtJzLQYCw==","signature_status":"signed_v1","signed_at":"2026-05-18T02:34:30.057835Z","signed_message":"canonical_sha256_bytes"},"source_id":"0909.2664","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:8f10c44616f71178686ce59a7f6ad1dd9a04b9ee00565465a0d6f63098843e16","sha256:4224bca8b9fc39664197c54791396ec56b966fecba32a76b76c25fa4158530fc"],"state_sha256":"3e961b4f73057b661072e68336554124935355db150121ae54b6735c4d82e591"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"BqoS1r5JtVEVwYk+jFId5/FL9uy0C/EFi9VjBUnSkDGl9LDfXGFrKIot2+TeM2b8KaEvCyS1x0tOJMB8rPrkAg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-05T23:24:04.736525Z","bundle_sha256":"ec1009ef617e0444793c4e8995099320606848cdcebec02dcbfe394904e32bec"}}