{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2012:XO4NGUHKSGZZB34YFR73ZO764Y","short_pith_number":"pith:XO4NGUHK","canonical_record":{"source":{"id":"1202.3281","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2012-02-15T11:17:15Z","cross_cats_sorted":["nucl-th"],"title_canon_sha256":"31c5bfb1d25234c0963c9c33589515391154e4e4019e2fdd40da09b421776ca6","abstract_canon_sha256":"719ae66ba171a22bac05bd0fc9c69f17b1f0922e413983b4aa84729c93c5c95d"},"schema_version":"1.0"},"canonical_sha256":"bbb8d350ea91b390ef982c7fbcbbfee628941d83fcd621498d162bef8015bda9","source":{"kind":"arxiv","id":"1202.3281","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1202.3281","created_at":"2026-05-18T01:58:28Z"},{"alias_kind":"arxiv_version","alias_value":"1202.3281v1","created_at":"2026-05-18T01:58:28Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1202.3281","created_at":"2026-05-18T01:58:28Z"},{"alias_kind":"pith_short_12","alias_value":"XO4NGUHKSGZZ","created_at":"2026-05-18T12:27:27Z"},{"alias_kind":"pith_short_16","alias_value":"XO4NGUHKSGZZB34Y","created_at":"2026-05-18T12:27:27Z"},{"alias_kind":"pith_short_8","alias_value":"XO4NGUHK","created_at":"2026-05-18T12:27:27Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2012:XO4NGUHKSGZZB34YFR73ZO764Y","target":"record","payload":{"canonical_record":{"source":{"id":"1202.3281","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2012-02-15T11:17:15Z","cross_cats_sorted":["nucl-th"],"title_canon_sha256":"31c5bfb1d25234c0963c9c33589515391154e4e4019e2fdd40da09b421776ca6","abstract_canon_sha256":"719ae66ba171a22bac05bd0fc9c69f17b1f0922e413983b4aa84729c93c5c95d"},"schema_version":"1.0"},"canonical_sha256":"bbb8d350ea91b390ef982c7fbcbbfee628941d83fcd621498d162bef8015bda9","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:58:28.132449Z","signature_b64":"F7iUR+hbmzoh1xa70k6qxo3sPHA7kcIeuwDQUGd7Dfy92U9Sllotb85fleW09onBx54TCjX0V9LMFVND22YWCg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"bbb8d350ea91b390ef982c7fbcbbfee628941d83fcd621498d162bef8015bda9","last_reissued_at":"2026-05-18T01:58:28.132007Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:58:28.132007Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1202.3281","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":"2026-05-18T01:58:28Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"xp1t4Sb0fa+i9uaCsp+zvNoWkZcSYTMTXDQqTj3L2R1SPF7QSpNphF7MOl3eBLBMkZ2W0GJnE7KM4cUnHp2ZDA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-07T21:49:51.974678Z"},"content_sha256":"80aeb1ddb0b3b6d693fbd3b9c5a536c615ed5755d683e473f27e5a43d0eb05a8","schema_version":"1.0","event_id":"sha256:80aeb1ddb0b3b6d693fbd3b9c5a536c615ed5755d683e473f27e5a43d0eb05a8"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2012:XO4NGUHKSGZZB34YFR73ZO764Y","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Fragmentation and quark distribution functions for the pion and kaon with explicit flavor-SU(3)-symmetry breaking","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["nucl-th"],"primary_cat":"hep-ph","authors_text":"Chung-Wen Kao, Seung-il Nam","submitted_at":"2012-02-15T11:17:15Z","abstract_excerpt":"We investigate the unpolarized pion and kaon fragmentation functions, employing the nonlocal chiral-quark model, which manifests the nonlocal interactions between the quarks and pseudoscalar mesons, considering the explicit flavor-SU(3)-symmetry breaking in terms of the current-quark masses. Moreover, we study the quark-distribution functions, derived from the fragmentation ones with the Drell-Yan-Levi relation. Numerical results are evaluated to higher Q^2 by the DGLAP evolution and compared with the empirical data. The ratios between the relevant valance quark-distribution functions are also"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1202.3281","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":"2026-05-18T01:58:28Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"psUJaA2G03QQs7q/raPkmrffh1uOorAEqTWAmuE6uPRdCxbxrbwuUmlHUbOJNf4nm9X/JsMXydtiATu8cuXjBw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-07T21:49:51.975402Z"},"content_sha256":"79fd4eee78bac4e74eb8f88c76f7c13afb51e67e64c8fe86aa0d383226900824","schema_version":"1.0","event_id":"sha256:79fd4eee78bac4e74eb8f88c76f7c13afb51e67e64c8fe86aa0d383226900824"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/XO4NGUHKSGZZB34YFR73ZO764Y/bundle.json","state_url":"https://pith.science/pith/XO4NGUHKSGZZB34YFR73ZO764Y/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/XO4NGUHKSGZZB34YFR73ZO764Y/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":"2026-06-07T21:49:51Z","links":{"resolver":"https://pith.science/pith/XO4NGUHKSGZZB34YFR73ZO764Y","bundle":"https://pith.science/pith/XO4NGUHKSGZZB34YFR73ZO764Y/bundle.json","state":"https://pith.science/pith/XO4NGUHKSGZZB34YFR73ZO764Y/state.json","well_known_bundle":"https://pith.science/.well-known/pith/XO4NGUHKSGZZB34YFR73ZO764Y/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2012:XO4NGUHKSGZZB34YFR73ZO764Y","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":"719ae66ba171a22bac05bd0fc9c69f17b1f0922e413983b4aa84729c93c5c95d","cross_cats_sorted":["nucl-th"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2012-02-15T11:17:15Z","title_canon_sha256":"31c5bfb1d25234c0963c9c33589515391154e4e4019e2fdd40da09b421776ca6"},"schema_version":"1.0","source":{"id":"1202.3281","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1202.3281","created_at":"2026-05-18T01:58:28Z"},{"alias_kind":"arxiv_version","alias_value":"1202.3281v1","created_at":"2026-05-18T01:58:28Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1202.3281","created_at":"2026-05-18T01:58:28Z"},{"alias_kind":"pith_short_12","alias_value":"XO4NGUHKSGZZ","created_at":"2026-05-18T12:27:27Z"},{"alias_kind":"pith_short_16","alias_value":"XO4NGUHKSGZZB34Y","created_at":"2026-05-18T12:27:27Z"},{"alias_kind":"pith_short_8","alias_value":"XO4NGUHK","created_at":"2026-05-18T12:27:27Z"}],"graph_snapshots":[{"event_id":"sha256:79fd4eee78bac4e74eb8f88c76f7c13afb51e67e64c8fe86aa0d383226900824","target":"graph","created_at":"2026-05-18T01:58:28Z","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 investigate the unpolarized pion and kaon fragmentation functions, employing the nonlocal chiral-quark model, which manifests the nonlocal interactions between the quarks and pseudoscalar mesons, considering the explicit flavor-SU(3)-symmetry breaking in terms of the current-quark masses. Moreover, we study the quark-distribution functions, derived from the fragmentation ones with the Drell-Yan-Levi relation. Numerical results are evaluated to higher Q^2 by the DGLAP evolution and compared with the empirical data. The ratios between the relevant valance quark-distribution functions are also","authors_text":"Chung-Wen Kao, Seung-il Nam","cross_cats":["nucl-th"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2012-02-15T11:17:15Z","title":"Fragmentation and quark distribution functions for the pion and kaon with explicit flavor-SU(3)-symmetry breaking"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1202.3281","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":"sha256:80aeb1ddb0b3b6d693fbd3b9c5a536c615ed5755d683e473f27e5a43d0eb05a8","target":"record","created_at":"2026-05-18T01:58:28Z","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":"719ae66ba171a22bac05bd0fc9c69f17b1f0922e413983b4aa84729c93c5c95d","cross_cats_sorted":["nucl-th"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2012-02-15T11:17:15Z","title_canon_sha256":"31c5bfb1d25234c0963c9c33589515391154e4e4019e2fdd40da09b421776ca6"},"schema_version":"1.0","source":{"id":"1202.3281","kind":"arxiv","version":1}},"canonical_sha256":"bbb8d350ea91b390ef982c7fbcbbfee628941d83fcd621498d162bef8015bda9","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"bbb8d350ea91b390ef982c7fbcbbfee628941d83fcd621498d162bef8015bda9","first_computed_at":"2026-05-18T01:58:28.132007Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:58:28.132007Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"F7iUR+hbmzoh1xa70k6qxo3sPHA7kcIeuwDQUGd7Dfy92U9Sllotb85fleW09onBx54TCjX0V9LMFVND22YWCg==","signature_status":"signed_v1","signed_at":"2026-05-18T01:58:28.132449Z","signed_message":"canonical_sha256_bytes"},"source_id":"1202.3281","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:80aeb1ddb0b3b6d693fbd3b9c5a536c615ed5755d683e473f27e5a43d0eb05a8","sha256:79fd4eee78bac4e74eb8f88c76f7c13afb51e67e64c8fe86aa0d383226900824"],"state_sha256":"5132e5059848774270fb0ca005413ddaa6d6cfd9835ee2851e66c3ff251ac8c6"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"TZvrBunT1UqiQ4jc7rgO5HPt3RAV5PMg3TsUZ8MPFPmelwdfwauZQkzv7hQENM8glHK2blP66key3+2tSkwuAQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-07T21:49:51.979183Z","bundle_sha256":"7af06a35aa87e3dc7c09bc3039c8a67cfcd36ad3d8cec66bbf81b664c5b282b5"}}