{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2021:PW74SYCD7GS5JQZNT76YQL4KNP","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":"40860b8fb81a41717f5d31c380586e3493b78301562ac5274537a64f78062c61","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"hep-ph","submitted_at":"2021-10-14T16:48:45Z","title_canon_sha256":"1a4353d18d3ddec3e2e252a7798ca53d2cd91719de8296bade5802f2b87f4abd"},"schema_version":"1.0","source":{"id":"2110.07529","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2110.07529","created_at":"2026-07-05T04:07:25Z"},{"alias_kind":"arxiv_version","alias_value":"2110.07529v2","created_at":"2026-07-05T04:07:25Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2110.07529","created_at":"2026-07-05T04:07:25Z"},{"alias_kind":"pith_short_12","alias_value":"PW74SYCD7GS5","created_at":"2026-07-05T04:07:25Z"},{"alias_kind":"pith_short_16","alias_value":"PW74SYCD7GS5JQZN","created_at":"2026-07-05T04:07:25Z"},{"alias_kind":"pith_short_8","alias_value":"PW74SYCD","created_at":"2026-07-05T04:07:25Z"}],"graph_snapshots":[{"event_id":"sha256:f5f86e672051ca5398d26cd98aa3b027107bdb9e8a720458c6362a3871ff36a5","target":"graph","created_at":"2026-07-05T04:07:25Z","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/2110.07529/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We study the polar and azimuthal decay angular distributions of $J/\\psi$ mesons produced in semi-inclusive, deep-inelastic electron-proton scattering. For the description of the quarkonium formation mechanism, we adopt the framework of nonrelativistic QCD, with the inclusion of the intermediate color-octet channels that are suppressed at most by a factor $v^4$ in the velocity parameter $v$ relative to the leading color-singlet channel. We put forward factorized expressions for the helicity structure functions in terms of transverse momentum dependent gluon distributions and shape functions, wh","authors_text":"Cristian Pisano, Francesco Murgia, Luca Maxia, Sangem Rajesh, Umberto D'Alesio","cross_cats":[],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"hep-ph","submitted_at":"2021-10-14T16:48:45Z","title":"$J/\\psi$ polarization in semi-inclusive DIS at low and high transverse momentum"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2110.07529","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":"sha256:4c4b490ef9a8449c35a6033dd476fb2165fa48a56eddd202b640aa5d25d993c5","target":"record","created_at":"2026-07-05T04:07:25Z","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":"40860b8fb81a41717f5d31c380586e3493b78301562ac5274537a64f78062c61","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"hep-ph","submitted_at":"2021-10-14T16:48:45Z","title_canon_sha256":"1a4353d18d3ddec3e2e252a7798ca53d2cd91719de8296bade5802f2b87f4abd"},"schema_version":"1.0","source":{"id":"2110.07529","kind":"arxiv","version":2}},"canonical_sha256":"7dbfc96043f9a5d4c32d9ffd882f8a6bf620f4e71acb7f551b037ecd760a2591","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"7dbfc96043f9a5d4c32d9ffd882f8a6bf620f4e71acb7f551b037ecd760a2591","first_computed_at":"2026-07-05T04:07:25.983089Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T04:07:25.983089Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"i1cTJqHqr6c4Y9LqFIQAlbdBfw1liD0Veju8yZ3/0LeKU0nT9Mbp0Flq3CsP2GhDQNC/1FEKeUJ23rW/wLYmAg==","signature_status":"signed_v1","signed_at":"2026-07-05T04:07:25.983612Z","signed_message":"canonical_sha256_bytes"},"source_id":"2110.07529","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:4c4b490ef9a8449c35a6033dd476fb2165fa48a56eddd202b640aa5d25d993c5","sha256:f5f86e672051ca5398d26cd98aa3b027107bdb9e8a720458c6362a3871ff36a5"],"state_sha256":"115cb7aaa0821cae86fdbf48a80095f15750747ff4fef8fcb8be58db065a12a1"}