{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2020:MZMCTE6M7C6WHRT76BQORKA2SW","short_pith_number":"pith:MZMCTE6M","schema_version":"1.0","canonical_sha256":"66582993ccf8bd63c67ff060e8a81a95a130eb3bd16a50d1f947cdfdeccda076","source":{"kind":"arxiv","id":"2004.14278","version":2},"attestation_state":"computed","paper":{"title":"The three-dimensional distribution of quarks in momentum space","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["nucl-th"],"primary_cat":"hep-ph","authors_text":"Alessandro Bacchetta, Cristian Pisano, Filippo Delcarro, Marco Radici","submitted_at":"2020-04-29T15:51:59Z","abstract_excerpt":"We present the distribution of unpolarized quarks in a transversely polarized proton in three-dimensional momentum space. Our results are based on consistent extractions of the unpolarized and Sivers transverse momentum dependent parton distributions (TMDs)."},"verification_status":{"content_addressed":true,"pith_receipt":true,"author_attested":false,"weak_author_claims":0,"strong_author_claims":0,"externally_anchored":false,"storage_verified":false,"citation_signatures":0,"replication_records":0,"graph_snapshot":true,"references_resolved":false,"formal_links_present":false},"canonical_record":{"source":{"id":"2004.14278","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2020-04-29T15:51:59Z","cross_cats_sorted":["nucl-th"],"title_canon_sha256":"e8ad5e5e97f0db9067e3e21f95002e5fbe6657d9274c1de379a1d52b3f09561c","abstract_canon_sha256":"d0d1fbbead23fbe9295416c6e754ebfc85be9fb5076056a9fad07372afd437b9"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T04:01:40.020598Z","signature_b64":"gsA9DS0MIZWYI1TPXS91JVr/H2+WSlF50BcTi5IYUn8b7hg98q7qx9zjOe7BWH3pAus1tjanSb5OLaBzoCA+Dg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"66582993ccf8bd63c67ff060e8a81a95a130eb3bd16a50d1f947cdfdeccda076","last_reissued_at":"2026-07-05T04:01:40.020134Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T04:01:40.020134Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"The three-dimensional distribution of quarks in momentum space","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["nucl-th"],"primary_cat":"hep-ph","authors_text":"Alessandro Bacchetta, Cristian Pisano, Filippo Delcarro, Marco Radici","submitted_at":"2020-04-29T15:51:59Z","abstract_excerpt":"We present the distribution of unpolarized quarks in a transversely polarized proton in three-dimensional momentum space. Our results are based on consistent extractions of the unpolarized and Sivers transverse momentum dependent parton distributions (TMDs)."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2004.14278","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2004.14278/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"},"aliases":[{"alias_kind":"arxiv","alias_value":"2004.14278","created_at":"2026-07-05T04:01:40.020191+00:00"},{"alias_kind":"arxiv_version","alias_value":"2004.14278v2","created_at":"2026-07-05T04:01:40.020191+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2004.14278","created_at":"2026-07-05T04:01:40.020191+00:00"},{"alias_kind":"pith_short_12","alias_value":"MZMCTE6M7C6W","created_at":"2026-07-05T04:01:40.020191+00:00"},{"alias_kind":"pith_short_16","alias_value":"MZMCTE6M7C6WHRT7","created_at":"2026-07-05T04:01:40.020191+00:00"},{"alias_kind":"pith_short_8","alias_value":"MZMCTE6M","created_at":"2026-07-05T04:01:40.020191+00:00"}],"events":[],"event_summary":{},"paper_claims":[],"inbound_citations":{"count":4,"internal_anchor_count":1,"sample":[{"citing_arxiv_id":"2607.07312","citing_title":"Double quarkonium production in hadronic collisions at fixed-target experiments","ref_index":19,"is_internal_anchor":true},{"citing_arxiv_id":"2607.01866","citing_title":"Phenomenology of genuine twist-three distributions from a global QCD analysis","ref_index":28,"is_internal_anchor":false},{"citing_arxiv_id":"2605.06606","citing_title":"TMDs in the Lens of Generative AI: A Pixel-Based Approach to Partonic Imaging","ref_index":36,"is_internal_anchor":false},{"citing_arxiv_id":"2605.06606","citing_title":"TMDs in the Lens of Generative AI: A Pixel-Based Approach to Partonic Imaging","ref_index":35,"is_internal_anchor":false}]},"formal_canon":{"evidence_count":0,"sample":[],"anchors":[]},"links":{"html":"https://pith.science/pith/MZMCTE6M7C6WHRT76BQORKA2SW","json":"https://pith.science/pith/MZMCTE6M7C6WHRT76BQORKA2SW.json","graph_json":"https://pith.science/api/pith-number/MZMCTE6M7C6WHRT76BQORKA2SW/graph.json","events_json":"https://pith.science/api/pith-number/MZMCTE6M7C6WHRT76BQORKA2SW/events.json","paper":"https://pith.science/paper/MZMCTE6M"},"agent_actions":{"view_html":"https://pith.science/pith/MZMCTE6M7C6WHRT76BQORKA2SW","download_json":"https://pith.science/pith/MZMCTE6M7C6WHRT76BQORKA2SW.json","view_paper":"https://pith.science/paper/MZMCTE6M","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=2004.14278&json=true","fetch_graph":"https://pith.science/api/pith-number/MZMCTE6M7C6WHRT76BQORKA2SW/graph.json","fetch_events":"https://pith.science/api/pith-number/MZMCTE6M7C6WHRT76BQORKA2SW/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/MZMCTE6M7C6WHRT76BQORKA2SW/action/timestamp_anchor","attest_storage":"https://pith.science/pith/MZMCTE6M7C6WHRT76BQORKA2SW/action/storage_attestation","attest_author":"https://pith.science/pith/MZMCTE6M7C6WHRT76BQORKA2SW/action/author_attestation","sign_citation":"https://pith.science/pith/MZMCTE6M7C6WHRT76BQORKA2SW/action/citation_signature","submit_replication":"https://pith.science/pith/MZMCTE6M7C6WHRT76BQORKA2SW/action/replication_record"}},"created_at":"2026-07-05T04:01:40.020191+00:00","updated_at":"2026-07-05T04:01:40.020191+00:00"}