{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2024:HAUP7VCOQFPAZXVTQWJFA2K3DM","short_pith_number":"pith:HAUP7VCO","canonical_record":{"source":{"id":"2409.18078","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"hep-ph","submitted_at":"2024-09-26T17:24:34Z","cross_cats_sorted":[],"title_canon_sha256":"1fad29c2608a476feddf53994f4c95641ea75562c9f814fada9e798b399b31d9","abstract_canon_sha256":"6d76766fb61623f7fa0f012e1236657f9e66a5b156622966c93fcb92827078c8"},"schema_version":"1.0"},"canonical_sha256":"3828ffd44e815e0cdeb3859250695b1b208e8f392710d2a03b1b536962b9fc87","source":{"kind":"arxiv","id":"2409.18078","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2409.18078","created_at":"2026-07-05T09:12:20Z"},{"alias_kind":"arxiv_version","alias_value":"2409.18078v1","created_at":"2026-07-05T09:12:20Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2409.18078","created_at":"2026-07-05T09:12:20Z"},{"alias_kind":"pith_short_12","alias_value":"HAUP7VCOQFPA","created_at":"2026-07-05T09:12:20Z"},{"alias_kind":"pith_short_16","alias_value":"HAUP7VCOQFPAZXVT","created_at":"2026-07-05T09:12:20Z"},{"alias_kind":"pith_short_8","alias_value":"HAUP7VCO","created_at":"2026-07-05T09:12:20Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2024:HAUP7VCOQFPAZXVTQWJFA2K3DM","target":"record","payload":{"canonical_record":{"source":{"id":"2409.18078","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"hep-ph","submitted_at":"2024-09-26T17:24:34Z","cross_cats_sorted":[],"title_canon_sha256":"1fad29c2608a476feddf53994f4c95641ea75562c9f814fada9e798b399b31d9","abstract_canon_sha256":"6d76766fb61623f7fa0f012e1236657f9e66a5b156622966c93fcb92827078c8"},"schema_version":"1.0"},"canonical_sha256":"3828ffd44e815e0cdeb3859250695b1b208e8f392710d2a03b1b536962b9fc87","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T09:12:20.182978Z","signature_b64":"k4MuBckGnT0yf2nNO5JJypTTymeR6xRZNpjucIRXUa68rlSLvjaAGOdWD8p4tqwe9qNyBzz3UyV3P67QzuoPCQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"3828ffd44e815e0cdeb3859250695b1b208e8f392710d2a03b1b536962b9fc87","last_reissued_at":"2026-07-05T09:12:20.182501Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T09:12:20.182501Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2409.18078","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":"2026-07-05T09:12:20Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"5ZKVuGjcstbidcDoCbMfhVsolr53r4bCUcrtcho4ZKrHzpT2JERgAxaR+z3cwS+1JPLxhKSuMtj021xhxcasCA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-04T05:41:54.958040Z"},"content_sha256":"4128faf12fd22ff35b392d71c4326b7e528585c225269e9e02eca23d76a9b6fe","schema_version":"1.0","event_id":"sha256:4128faf12fd22ff35b392d71c4326b7e528585c225269e9e02eca23d76a9b6fe"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2024:HAUP7VCOQFPAZXVTQWJFA2K3DM","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Exploring the three-dimensional momentum distribution of longitudinally polarized quarks in the proton","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":[],"primary_cat":"hep-ph","authors_text":"Alessandro Bacchetta, Alessia Bongallino, Lorenzo Rossi, Marco Radici, Matteo Cerutti","submitted_at":"2024-09-26T17:24:34Z","abstract_excerpt":"By analyzing experimental data on semi-inclusive deep inelastic scattering off longitudinally polarized targets, we extract the transverse momentum dependence of the quark helicity distribution, i.e., the difference between the three-dimensional motion of quarks with polarization parallel or antiparallel to the longitudinal polarization of the parent hadron. We perform the analysis at next-to-leading (NLL) and next-to-next-to-leading (NNLL) perturbative accuracy. The quality of the fit is very good for both cases, reaching a $\\chi^2$ per number of data points equal to $1.11$ and $1.09$, respec"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2409.18078","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/2409.18078/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":"2026-07-05T09:12:20Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"iAxDE/2SYvsb0ns3fhGsIXPWuueium6i1/KqXaXD709G9DurND+KXBMjAnOjTWJ0bzZbT3x6+HZoNy4iLNAEAw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-04T05:41:54.958430Z"},"content_sha256":"58677e44a2f0f7e378cf34f2e8ea59907f4c03d88151c3d91269b66b28c5250f","schema_version":"1.0","event_id":"sha256:58677e44a2f0f7e378cf34f2e8ea59907f4c03d88151c3d91269b66b28c5250f"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/HAUP7VCOQFPAZXVTQWJFA2K3DM/bundle.json","state_url":"https://pith.science/pith/HAUP7VCOQFPAZXVTQWJFA2K3DM/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/HAUP7VCOQFPAZXVTQWJFA2K3DM/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":"2026-08-04T05:41:54Z","links":{"resolver":"https://pith.science/pith/HAUP7VCOQFPAZXVTQWJFA2K3DM","bundle":"https://pith.science/pith/HAUP7VCOQFPAZXVTQWJFA2K3DM/bundle.json","state":"https://pith.science/pith/HAUP7VCOQFPAZXVTQWJFA2K3DM/state.json","well_known_bundle":"https://pith.science/.well-known/pith/HAUP7VCOQFPAZXVTQWJFA2K3DM/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2024:HAUP7VCOQFPAZXVTQWJFA2K3DM","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":"6d76766fb61623f7fa0f012e1236657f9e66a5b156622966c93fcb92827078c8","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"hep-ph","submitted_at":"2024-09-26T17:24:34Z","title_canon_sha256":"1fad29c2608a476feddf53994f4c95641ea75562c9f814fada9e798b399b31d9"},"schema_version":"1.0","source":{"id":"2409.18078","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2409.18078","created_at":"2026-07-05T09:12:20Z"},{"alias_kind":"arxiv_version","alias_value":"2409.18078v1","created_at":"2026-07-05T09:12:20Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2409.18078","created_at":"2026-07-05T09:12:20Z"},{"alias_kind":"pith_short_12","alias_value":"HAUP7VCOQFPA","created_at":"2026-07-05T09:12:20Z"},{"alias_kind":"pith_short_16","alias_value":"HAUP7VCOQFPAZXVT","created_at":"2026-07-05T09:12:20Z"},{"alias_kind":"pith_short_8","alias_value":"HAUP7VCO","created_at":"2026-07-05T09:12:20Z"}],"graph_snapshots":[{"event_id":"sha256:58677e44a2f0f7e378cf34f2e8ea59907f4c03d88151c3d91269b66b28c5250f","target":"graph","created_at":"2026-07-05T09:12:20Z","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/2409.18078/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"By analyzing experimental data on semi-inclusive deep inelastic scattering off longitudinally polarized targets, we extract the transverse momentum dependence of the quark helicity distribution, i.e., the difference between the three-dimensional motion of quarks with polarization parallel or antiparallel to the longitudinal polarization of the parent hadron. We perform the analysis at next-to-leading (NLL) and next-to-next-to-leading (NNLL) perturbative accuracy. The quality of the fit is very good for both cases, reaching a $\\chi^2$ per number of data points equal to $1.11$ and $1.09$, respec","authors_text":"Alessandro Bacchetta, Alessia Bongallino, Lorenzo Rossi, Marco Radici, Matteo Cerutti","cross_cats":[],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"hep-ph","submitted_at":"2024-09-26T17:24:34Z","title":"Exploring the three-dimensional momentum distribution of longitudinally polarized quarks in the proton"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2409.18078","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":"sha256:4128faf12fd22ff35b392d71c4326b7e528585c225269e9e02eca23d76a9b6fe","target":"record","created_at":"2026-07-05T09:12:20Z","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":"6d76766fb61623f7fa0f012e1236657f9e66a5b156622966c93fcb92827078c8","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"hep-ph","submitted_at":"2024-09-26T17:24:34Z","title_canon_sha256":"1fad29c2608a476feddf53994f4c95641ea75562c9f814fada9e798b399b31d9"},"schema_version":"1.0","source":{"id":"2409.18078","kind":"arxiv","version":1}},"canonical_sha256":"3828ffd44e815e0cdeb3859250695b1b208e8f392710d2a03b1b536962b9fc87","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"3828ffd44e815e0cdeb3859250695b1b208e8f392710d2a03b1b536962b9fc87","first_computed_at":"2026-07-05T09:12:20.182501Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T09:12:20.182501Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"k4MuBckGnT0yf2nNO5JJypTTymeR6xRZNpjucIRXUa68rlSLvjaAGOdWD8p4tqwe9qNyBzz3UyV3P67QzuoPCQ==","signature_status":"signed_v1","signed_at":"2026-07-05T09:12:20.182978Z","signed_message":"canonical_sha256_bytes"},"source_id":"2409.18078","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:4128faf12fd22ff35b392d71c4326b7e528585c225269e9e02eca23d76a9b6fe","sha256:58677e44a2f0f7e378cf34f2e8ea59907f4c03d88151c3d91269b66b28c5250f"],"state_sha256":"592c8c3f0121513f0b7799e6441fd5b09b661f2eb0c2dad3cd18047e1d8f4f8f"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"uFvOaly+UKei5lizi8a1JgfPO3GRLX13XU5SLIckgmN1xYu4bG3klbZLktO5XzTHGwxb1w2+gWicTVqSsrVuAA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-04T05:41:54.961144Z","bundle_sha256":"af6de43b3aef2645dc51ef5d825d004e2c135536e35740ea491efbf9654d6d65"}}