{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2014:SSL5LA6D6S65JYUSEJ7ZNLZAKX","short_pith_number":"pith:SSL5LA6D","canonical_record":{"source":{"id":"1404.5809","kind":"arxiv","version":3},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2014-04-23T12:56:16Z","cross_cats_sorted":[],"title_canon_sha256":"8d280845fa8aec49cce7f81125982cd50e5fd683b264903b3f01d97ba3be988e","abstract_canon_sha256":"6e1f15c599d7b71ea72abffc6163833041d356a46b092d1441b180fbf60690d2"},"schema_version":"1.0"},"canonical_sha256":"9497d583c3f4bdd4e292227f96af2055fc2994268ef98b0c37b6f095c2a4a498","source":{"kind":"arxiv","id":"1404.5809","version":3},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1404.5809","created_at":"2026-05-18T02:27:44Z"},{"alias_kind":"arxiv_version","alias_value":"1404.5809v3","created_at":"2026-05-18T02:27:44Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1404.5809","created_at":"2026-05-18T02:27:44Z"},{"alias_kind":"pith_short_12","alias_value":"SSL5LA6D6S65","created_at":"2026-05-18T12:28:49Z"},{"alias_kind":"pith_short_16","alias_value":"SSL5LA6D6S65JYUS","created_at":"2026-05-18T12:28:49Z"},{"alias_kind":"pith_short_8","alias_value":"SSL5LA6D","created_at":"2026-05-18T12:28:49Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2014:SSL5LA6D6S65JYUSEJ7ZNLZAKX","target":"record","payload":{"canonical_record":{"source":{"id":"1404.5809","kind":"arxiv","version":3},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2014-04-23T12:56:16Z","cross_cats_sorted":[],"title_canon_sha256":"8d280845fa8aec49cce7f81125982cd50e5fd683b264903b3f01d97ba3be988e","abstract_canon_sha256":"6e1f15c599d7b71ea72abffc6163833041d356a46b092d1441b180fbf60690d2"},"schema_version":"1.0"},"canonical_sha256":"9497d583c3f4bdd4e292227f96af2055fc2994268ef98b0c37b6f095c2a4a498","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:27:44.650920Z","signature_b64":"OzQNxL8ZKz0dS95liq9niHDJRKE8Krn5uS61iSWbFbqDqUcG32a36U1xEHDrdzBEhjsv8rpID8c/uXRd7K+mBQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"9497d583c3f4bdd4e292227f96af2055fc2994268ef98b0c37b6f095c2a4a498","last_reissued_at":"2026-05-18T02:27:44.650485Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:27:44.650485Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1404.5809","source_version":3,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T02:27:44Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"1CIqIzw9Iew00YyKZBdjADBuD3PQZsXVAjpTVcVUX2Cv1KgnLqMei+lL8LOVCYxBF0NPFlCiTZt3ISXOL5u5Dw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-13T04:11:59.136580Z"},"content_sha256":"6adb212765f2b34e16a928af6f26225c4752edd2d82caa255a645a12d8b36360","schema_version":"1.0","event_id":"sha256:6adb212765f2b34e16a928af6f26225c4752edd2d82caa255a645a12d8b36360"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2014:SSL5LA6D6S65JYUSEJ7ZNLZAKX","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Transverse single spin asymmetry in direct photon production in polarized pA collisions","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"hep-ph","authors_text":"Andreas Sch\\\"afer, Jian Zhou","submitted_at":"2014-04-23T12:56:16Z","abstract_excerpt":"We study the transverse single spin asymmetry in direct photon production in pA collisions with incoming protons being transversely polarized. To facilitate the calculation, we formulate a hybrid approach in which the nucleus is treated in the Color Glass Condensate (CGC) framework while the collinear twist-3 formalism is applied on the proton side. It has been found that an additional term which arises from color entanglement shows up in the spin dependent differential cross section. The fact that this additional term is perturbatively calculable allows us to quantitatively study color entang"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1404.5809","kind":"arxiv","version":3},"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":"2026-05-18T02:27:44Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"b3zPT5hoGdsH1u60YMBK7FR2Nig1jCEmirRxd7TfKDGPERX9JuaBIvMzQ8DVS8TNm6Y6tsyO8PuO+VpsGlqNAw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-13T04:11:59.137536Z"},"content_sha256":"1a3efbe95b1c52c2fba2d6fe3eb3f6b5facda61bc3325195f47086271c81ed0d","schema_version":"1.0","event_id":"sha256:1a3efbe95b1c52c2fba2d6fe3eb3f6b5facda61bc3325195f47086271c81ed0d"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/SSL5LA6D6S65JYUSEJ7ZNLZAKX/bundle.json","state_url":"https://pith.science/pith/SSL5LA6D6S65JYUSEJ7ZNLZAKX/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/SSL5LA6D6S65JYUSEJ7ZNLZAKX/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":"2026-08-13T04:11:59Z","links":{"resolver":"https://pith.science/pith/SSL5LA6D6S65JYUSEJ7ZNLZAKX","bundle":"https://pith.science/pith/SSL5LA6D6S65JYUSEJ7ZNLZAKX/bundle.json","state":"https://pith.science/pith/SSL5LA6D6S65JYUSEJ7ZNLZAKX/state.json","well_known_bundle":"https://pith.science/.well-known/pith/SSL5LA6D6S65JYUSEJ7ZNLZAKX/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2014:SSL5LA6D6S65JYUSEJ7ZNLZAKX","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":"6e1f15c599d7b71ea72abffc6163833041d356a46b092d1441b180fbf60690d2","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2014-04-23T12:56:16Z","title_canon_sha256":"8d280845fa8aec49cce7f81125982cd50e5fd683b264903b3f01d97ba3be988e"},"schema_version":"1.0","source":{"id":"1404.5809","kind":"arxiv","version":3}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1404.5809","created_at":"2026-05-18T02:27:44Z"},{"alias_kind":"arxiv_version","alias_value":"1404.5809v3","created_at":"2026-05-18T02:27:44Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1404.5809","created_at":"2026-05-18T02:27:44Z"},{"alias_kind":"pith_short_12","alias_value":"SSL5LA6D6S65","created_at":"2026-05-18T12:28:49Z"},{"alias_kind":"pith_short_16","alias_value":"SSL5LA6D6S65JYUS","created_at":"2026-05-18T12:28:49Z"},{"alias_kind":"pith_short_8","alias_value":"SSL5LA6D","created_at":"2026-05-18T12:28:49Z"}],"graph_snapshots":[{"event_id":"sha256:1a3efbe95b1c52c2fba2d6fe3eb3f6b5facda61bc3325195f47086271c81ed0d","target":"graph","created_at":"2026-05-18T02:27:44Z","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 study the transverse single spin asymmetry in direct photon production in pA collisions with incoming protons being transversely polarized. To facilitate the calculation, we formulate a hybrid approach in which the nucleus is treated in the Color Glass Condensate (CGC) framework while the collinear twist-3 formalism is applied on the proton side. It has been found that an additional term which arises from color entanglement shows up in the spin dependent differential cross section. The fact that this additional term is perturbatively calculable allows us to quantitatively study color entang","authors_text":"Andreas Sch\\\"afer, Jian Zhou","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2014-04-23T12:56:16Z","title":"Transverse single spin asymmetry in direct photon production in polarized pA collisions"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1404.5809","kind":"arxiv","version":3},"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":"sha256:6adb212765f2b34e16a928af6f26225c4752edd2d82caa255a645a12d8b36360","target":"record","created_at":"2026-05-18T02:27:44Z","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":"6e1f15c599d7b71ea72abffc6163833041d356a46b092d1441b180fbf60690d2","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2014-04-23T12:56:16Z","title_canon_sha256":"8d280845fa8aec49cce7f81125982cd50e5fd683b264903b3f01d97ba3be988e"},"schema_version":"1.0","source":{"id":"1404.5809","kind":"arxiv","version":3}},"canonical_sha256":"9497d583c3f4bdd4e292227f96af2055fc2994268ef98b0c37b6f095c2a4a498","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"9497d583c3f4bdd4e292227f96af2055fc2994268ef98b0c37b6f095c2a4a498","first_computed_at":"2026-05-18T02:27:44.650485Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:27:44.650485Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"OzQNxL8ZKz0dS95liq9niHDJRKE8Krn5uS61iSWbFbqDqUcG32a36U1xEHDrdzBEhjsv8rpID8c/uXRd7K+mBQ==","signature_status":"signed_v1","signed_at":"2026-05-18T02:27:44.650920Z","signed_message":"canonical_sha256_bytes"},"source_id":"1404.5809","source_kind":"arxiv","source_version":3}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:6adb212765f2b34e16a928af6f26225c4752edd2d82caa255a645a12d8b36360","sha256:1a3efbe95b1c52c2fba2d6fe3eb3f6b5facda61bc3325195f47086271c81ed0d"],"state_sha256":"34e5d5da6c9653282ed5159946c32f80f146755de880d7bbc69a817cbb0a9ec3"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"+dG6DLLTL6cVyBu7ax87uL3DOHDuWCOcS9IXwon93dkjgrua5TyukHJ4xERk/6keb7lHVzA0JC2oWVbXyQWCCg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-13T04:11:59.144050Z","bundle_sha256":"9657ba4f69430b6d06de5dc6383186ce1b551c4504b33b89d5333b63f9cb11e8"}}