{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2012:PSVMX6HN7ZYEDSEEP4OUQCG3XZ","short_pith_number":"pith:PSVMX6HN","canonical_record":{"source":{"id":"1207.0812","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2012-07-03T20:00:03Z","cross_cats_sorted":["nucl-th"],"title_canon_sha256":"0cff63b951a0a8501a37c1acfcb495a63ea492659a7c695f427c0fcffdf89ab4","abstract_canon_sha256":"eefe2fd7df78f894a39dc75c9148a2d2c7f3185b24326bc73db66f220c8446cb"},"schema_version":"1.0"},"canonical_sha256":"7caacbf8edfe7041c8847f1d4808dbbe6dd3dbb2406be1bf551f6d41f86f1209","source":{"kind":"arxiv","id":"1207.0812","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1207.0812","created_at":"2026-05-18T03:38:04Z"},{"alias_kind":"arxiv_version","alias_value":"1207.0812v1","created_at":"2026-05-18T03:38:04Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1207.0812","created_at":"2026-05-18T03:38:04Z"},{"alias_kind":"pith_short_12","alias_value":"PSVMX6HN7ZYE","created_at":"2026-05-18T12:27:18Z"},{"alias_kind":"pith_short_16","alias_value":"PSVMX6HN7ZYEDSEE","created_at":"2026-05-18T12:27:18Z"},{"alias_kind":"pith_short_8","alias_value":"PSVMX6HN","created_at":"2026-05-18T12:27:18Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2012:PSVMX6HN7ZYEDSEEP4OUQCG3XZ","target":"record","payload":{"canonical_record":{"source":{"id":"1207.0812","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2012-07-03T20:00:03Z","cross_cats_sorted":["nucl-th"],"title_canon_sha256":"0cff63b951a0a8501a37c1acfcb495a63ea492659a7c695f427c0fcffdf89ab4","abstract_canon_sha256":"eefe2fd7df78f894a39dc75c9148a2d2c7f3185b24326bc73db66f220c8446cb"},"schema_version":"1.0"},"canonical_sha256":"7caacbf8edfe7041c8847f1d4808dbbe6dd3dbb2406be1bf551f6d41f86f1209","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T03:38:04.922475Z","signature_b64":"MA3z8av21hq/4829Uy+bUSKV+fRbQ4D3HrztJ5cuV5jKAbeqZxO/Ke3yvs+ZLnmoQWd2GxB2/RvPGCWhUu5QDw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"7caacbf8edfe7041c8847f1d4808dbbe6dd3dbb2406be1bf551f6d41f86f1209","last_reissued_at":"2026-05-18T03:38:04.921971Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T03:38:04.921971Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1207.0812","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":"2026-05-18T03:38:04Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"HyuwNrsfqL5OHra6nfi4N3/IsamBeDb8MKl98Bh6uHWSxDvaa0cpb6ZyPWQuPDiwPKGsRSfXtyC5t0XXQtSkDA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-30T15:25:42.510820Z"},"content_sha256":"81d52b6066e4434a5c62c73d0d28baca1399d15080b85e26a537bc5298d77046","schema_version":"1.0","event_id":"sha256:81d52b6066e4434a5c62c73d0d28baca1399d15080b85e26a537bc5298d77046"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2012:PSVMX6HN7ZYEDSEEP4OUQCG3XZ","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Effects of Quark Spin Flip on the Collins Fragmentation Function in a Toy Model","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["nucl-th"],"primary_cat":"hep-ph","authors_text":"Anthony W. Thomas, Hrayr H. Matevosyan, Wolfgang Bentz","submitted_at":"2012-07-03T20:00:03Z","abstract_excerpt":"The recent extension of the NJL-jet model to hadronization of transversely polarized quarks allowed the study of the Collins fragmentation function. Both favored and unfavored Collins fragmentation functions were generated, the latter purely by multiple hadron emissions, with 1/2 moments of opposite sign in the region of the light-cone momentum fraction $z$ accessible in current experiments. Hints of such behavior has been seen in the measurements in several experiments. Also, in the transverse momentum dependent (TMD) hadron emission probabilities, modulations of up to fourth order in sine of"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1207.0812","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":""},"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":"2026-05-18T03:38:04Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"+xAOO8+kxgoXj/qylfblDQZIw6Mg+B3Ii/PqUeQQ1M/hjVc49H+GonAbfDgyLY276HSsz71+mIN33UGbRk1KAw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-30T15:25:42.511173Z"},"content_sha256":"999fee72046b192c4d70eaef9cab9526059534f77f0760bc6c675ff020793088","schema_version":"1.0","event_id":"sha256:999fee72046b192c4d70eaef9cab9526059534f77f0760bc6c675ff020793088"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/PSVMX6HN7ZYEDSEEP4OUQCG3XZ/bundle.json","state_url":"https://pith.science/pith/PSVMX6HN7ZYEDSEEP4OUQCG3XZ/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/PSVMX6HN7ZYEDSEEP4OUQCG3XZ/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":"2026-05-30T15:25:42Z","links":{"resolver":"https://pith.science/pith/PSVMX6HN7ZYEDSEEP4OUQCG3XZ","bundle":"https://pith.science/pith/PSVMX6HN7ZYEDSEEP4OUQCG3XZ/bundle.json","state":"https://pith.science/pith/PSVMX6HN7ZYEDSEEP4OUQCG3XZ/state.json","well_known_bundle":"https://pith.science/.well-known/pith/PSVMX6HN7ZYEDSEEP4OUQCG3XZ/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2012:PSVMX6HN7ZYEDSEEP4OUQCG3XZ","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":"eefe2fd7df78f894a39dc75c9148a2d2c7f3185b24326bc73db66f220c8446cb","cross_cats_sorted":["nucl-th"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2012-07-03T20:00:03Z","title_canon_sha256":"0cff63b951a0a8501a37c1acfcb495a63ea492659a7c695f427c0fcffdf89ab4"},"schema_version":"1.0","source":{"id":"1207.0812","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1207.0812","created_at":"2026-05-18T03:38:04Z"},{"alias_kind":"arxiv_version","alias_value":"1207.0812v1","created_at":"2026-05-18T03:38:04Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1207.0812","created_at":"2026-05-18T03:38:04Z"},{"alias_kind":"pith_short_12","alias_value":"PSVMX6HN7ZYE","created_at":"2026-05-18T12:27:18Z"},{"alias_kind":"pith_short_16","alias_value":"PSVMX6HN7ZYEDSEE","created_at":"2026-05-18T12:27:18Z"},{"alias_kind":"pith_short_8","alias_value":"PSVMX6HN","created_at":"2026-05-18T12:27:18Z"}],"graph_snapshots":[{"event_id":"sha256:999fee72046b192c4d70eaef9cab9526059534f77f0760bc6c675ff020793088","target":"graph","created_at":"2026-05-18T03:38:04Z","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":"The recent extension of the NJL-jet model to hadronization of transversely polarized quarks allowed the study of the Collins fragmentation function. Both favored and unfavored Collins fragmentation functions were generated, the latter purely by multiple hadron emissions, with 1/2 moments of opposite sign in the region of the light-cone momentum fraction $z$ accessible in current experiments. Hints of such behavior has been seen in the measurements in several experiments. Also, in the transverse momentum dependent (TMD) hadron emission probabilities, modulations of up to fourth order in sine of","authors_text":"Anthony W. Thomas, Hrayr H. Matevosyan, Wolfgang Bentz","cross_cats":["nucl-th"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2012-07-03T20:00:03Z","title":"Effects of Quark Spin Flip on the Collins Fragmentation Function in a Toy Model"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1207.0812","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":"sha256:81d52b6066e4434a5c62c73d0d28baca1399d15080b85e26a537bc5298d77046","target":"record","created_at":"2026-05-18T03:38:04Z","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":"eefe2fd7df78f894a39dc75c9148a2d2c7f3185b24326bc73db66f220c8446cb","cross_cats_sorted":["nucl-th"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2012-07-03T20:00:03Z","title_canon_sha256":"0cff63b951a0a8501a37c1acfcb495a63ea492659a7c695f427c0fcffdf89ab4"},"schema_version":"1.0","source":{"id":"1207.0812","kind":"arxiv","version":1}},"canonical_sha256":"7caacbf8edfe7041c8847f1d4808dbbe6dd3dbb2406be1bf551f6d41f86f1209","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"7caacbf8edfe7041c8847f1d4808dbbe6dd3dbb2406be1bf551f6d41f86f1209","first_computed_at":"2026-05-18T03:38:04.921971Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T03:38:04.921971Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"MA3z8av21hq/4829Uy+bUSKV+fRbQ4D3HrztJ5cuV5jKAbeqZxO/Ke3yvs+ZLnmoQWd2GxB2/RvPGCWhUu5QDw==","signature_status":"signed_v1","signed_at":"2026-05-18T03:38:04.922475Z","signed_message":"canonical_sha256_bytes"},"source_id":"1207.0812","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:81d52b6066e4434a5c62c73d0d28baca1399d15080b85e26a537bc5298d77046","sha256:999fee72046b192c4d70eaef9cab9526059534f77f0760bc6c675ff020793088"],"state_sha256":"75197cd4d82990a2a580f183395936641bb8df8c9c04ee2d792a836758536bc7"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"vW5hj8K3s5yVPqlE1X3ToTFNUKgVeVzxxl3n8iPq4HyZCJpwss9Y1CJtNuL1nG3gurqKpjXal4gbHxp1prwUDg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-30T15:25:42.513513Z","bundle_sha256":"0ccdeca56259c13f933f3f577fcb385f4c265c42800c45f2f322c680bf59f8cf"}}