{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2015:7FW5WMQQWMYGIAE6R74P5JWAUM","short_pith_number":"pith:7FW5WMQQ","canonical_record":{"source":{"id":"1502.03894","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2015-02-13T06:20:03Z","cross_cats_sorted":["nucl-th"],"title_canon_sha256":"b66ee5b13b583dcd01dfd7d51821531d2f162b282c12713f49a00ac54d4da491","abstract_canon_sha256":"5130787cc35fd22e6f68e47b3751f773e3532b11b5b7ee40051c0f202f926f5b"},"schema_version":"1.0"},"canonical_sha256":"f96ddb3210b33064009e8ff8fea6c0a30b7bf23fb68af9312f6dc30bd044f8d3","source":{"kind":"arxiv","id":"1502.03894","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1502.03894","created_at":"2026-05-18T01:28:05Z"},{"alias_kind":"arxiv_version","alias_value":"1502.03894v2","created_at":"2026-05-18T01:28:05Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1502.03894","created_at":"2026-05-18T01:28:05Z"},{"alias_kind":"pith_short_12","alias_value":"7FW5WMQQWMYG","created_at":"2026-05-18T12:29:10Z"},{"alias_kind":"pith_short_16","alias_value":"7FW5WMQQWMYGIAE6","created_at":"2026-05-18T12:29:10Z"},{"alias_kind":"pith_short_8","alias_value":"7FW5WMQQ","created_at":"2026-05-18T12:29:10Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2015:7FW5WMQQWMYGIAE6R74P5JWAUM","target":"record","payload":{"canonical_record":{"source":{"id":"1502.03894","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2015-02-13T06:20:03Z","cross_cats_sorted":["nucl-th"],"title_canon_sha256":"b66ee5b13b583dcd01dfd7d51821531d2f162b282c12713f49a00ac54d4da491","abstract_canon_sha256":"5130787cc35fd22e6f68e47b3751f773e3532b11b5b7ee40051c0f202f926f5b"},"schema_version":"1.0"},"canonical_sha256":"f96ddb3210b33064009e8ff8fea6c0a30b7bf23fb68af9312f6dc30bd044f8d3","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:28:05.541646Z","signature_b64":"YSYNkCNqp87Q/+g4x3ZY46EEwqEWX/wYfNdEEkeDp6ArcPWZ1xcS+NdfoWxMJFPhhctRmZ027NV/zeEw2xcADQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"f96ddb3210b33064009e8ff8fea6c0a30b7bf23fb68af9312f6dc30bd044f8d3","last_reissued_at":"2026-05-18T01:28:05.541173Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:28:05.541173Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1502.03894","source_version":2,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T01:28:05Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"hP2bEHMXnufc74DXXO3ooK7AOmXh83BbuTWWkGq4x0GzjYNjfdy6y86e/l8C25df9boC7dCxZgGAYHU0qShDBA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-26T10:38:05.096778Z"},"content_sha256":"d25aedc1fa92a6a9bae8840c010b709648e6edc8775e5b1d29fbb1dd3ebac414","schema_version":"1.0","event_id":"sha256:d25aedc1fa92a6a9bae8840c010b709648e6edc8775e5b1d29fbb1dd3ebac414"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2015:7FW5WMQQWMYGIAE6R74P5JWAUM","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Photon structure functions at small $x$ in holographic QCD","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["nucl-th"],"primary_cat":"hep-ph","authors_text":"Akira Watanabe, Hsiang-nan Li","submitted_at":"2015-02-13T06:20:03Z","abstract_excerpt":"We investigate the photon structure functions at small Bjorken variable $x$ in the framework of the holographic QCD, assuming dominance of the Pomeron exchange. The quasi-real photon structure functions are expressed as convolution of the Brower-Polchinski-Strassler-Tan (BPST) Pomeron kernel and the known wave functions of the U(1) vector field in the five-dimensional AdS space, in which the involved parameters in the BPST kernel have been fixed in previous studies of the nucleon structure functions. The predicted photon structure functions, as confronted with data, provide a clean test of the"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1502.03894","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":""},"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":"2026-05-18T01:28:05Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"RIpXaaLHpZ9l2siQ9Z5ucHu/yNV98ZbA1242c5UYzvELX0l9KAYYjQgXRo/0UYfY/XrAMd+hQSjjQKiqi8drAQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-26T10:38:05.097449Z"},"content_sha256":"a4f8b8bb452f9293d63c52fd21e38a1579ed19b785355a195bf6ee61f4a9e521","schema_version":"1.0","event_id":"sha256:a4f8b8bb452f9293d63c52fd21e38a1579ed19b785355a195bf6ee61f4a9e521"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/7FW5WMQQWMYGIAE6R74P5JWAUM/bundle.json","state_url":"https://pith.science/pith/7FW5WMQQWMYGIAE6R74P5JWAUM/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/7FW5WMQQWMYGIAE6R74P5JWAUM/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":"2026-05-26T10:38:05Z","links":{"resolver":"https://pith.science/pith/7FW5WMQQWMYGIAE6R74P5JWAUM","bundle":"https://pith.science/pith/7FW5WMQQWMYGIAE6R74P5JWAUM/bundle.json","state":"https://pith.science/pith/7FW5WMQQWMYGIAE6R74P5JWAUM/state.json","well_known_bundle":"https://pith.science/.well-known/pith/7FW5WMQQWMYGIAE6R74P5JWAUM/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2015:7FW5WMQQWMYGIAE6R74P5JWAUM","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":"5130787cc35fd22e6f68e47b3751f773e3532b11b5b7ee40051c0f202f926f5b","cross_cats_sorted":["nucl-th"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2015-02-13T06:20:03Z","title_canon_sha256":"b66ee5b13b583dcd01dfd7d51821531d2f162b282c12713f49a00ac54d4da491"},"schema_version":"1.0","source":{"id":"1502.03894","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1502.03894","created_at":"2026-05-18T01:28:05Z"},{"alias_kind":"arxiv_version","alias_value":"1502.03894v2","created_at":"2026-05-18T01:28:05Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1502.03894","created_at":"2026-05-18T01:28:05Z"},{"alias_kind":"pith_short_12","alias_value":"7FW5WMQQWMYG","created_at":"2026-05-18T12:29:10Z"},{"alias_kind":"pith_short_16","alias_value":"7FW5WMQQWMYGIAE6","created_at":"2026-05-18T12:29:10Z"},{"alias_kind":"pith_short_8","alias_value":"7FW5WMQQ","created_at":"2026-05-18T12:29:10Z"}],"graph_snapshots":[{"event_id":"sha256:a4f8b8bb452f9293d63c52fd21e38a1579ed19b785355a195bf6ee61f4a9e521","target":"graph","created_at":"2026-05-18T01:28:05Z","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 photon structure functions at small Bjorken variable $x$ in the framework of the holographic QCD, assuming dominance of the Pomeron exchange. The quasi-real photon structure functions are expressed as convolution of the Brower-Polchinski-Strassler-Tan (BPST) Pomeron kernel and the known wave functions of the U(1) vector field in the five-dimensional AdS space, in which the involved parameters in the BPST kernel have been fixed in previous studies of the nucleon structure functions. The predicted photon structure functions, as confronted with data, provide a clean test of the","authors_text":"Akira Watanabe, Hsiang-nan Li","cross_cats":["nucl-th"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2015-02-13T06:20:03Z","title":"Photon structure functions at small $x$ in holographic QCD"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1502.03894","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:d25aedc1fa92a6a9bae8840c010b709648e6edc8775e5b1d29fbb1dd3ebac414","target":"record","created_at":"2026-05-18T01:28:05Z","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":"5130787cc35fd22e6f68e47b3751f773e3532b11b5b7ee40051c0f202f926f5b","cross_cats_sorted":["nucl-th"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2015-02-13T06:20:03Z","title_canon_sha256":"b66ee5b13b583dcd01dfd7d51821531d2f162b282c12713f49a00ac54d4da491"},"schema_version":"1.0","source":{"id":"1502.03894","kind":"arxiv","version":2}},"canonical_sha256":"f96ddb3210b33064009e8ff8fea6c0a30b7bf23fb68af9312f6dc30bd044f8d3","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"f96ddb3210b33064009e8ff8fea6c0a30b7bf23fb68af9312f6dc30bd044f8d3","first_computed_at":"2026-05-18T01:28:05.541173Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:28:05.541173Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"YSYNkCNqp87Q/+g4x3ZY46EEwqEWX/wYfNdEEkeDp6ArcPWZ1xcS+NdfoWxMJFPhhctRmZ027NV/zeEw2xcADQ==","signature_status":"signed_v1","signed_at":"2026-05-18T01:28:05.541646Z","signed_message":"canonical_sha256_bytes"},"source_id":"1502.03894","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:d25aedc1fa92a6a9bae8840c010b709648e6edc8775e5b1d29fbb1dd3ebac414","sha256:a4f8b8bb452f9293d63c52fd21e38a1579ed19b785355a195bf6ee61f4a9e521"],"state_sha256":"25373e1de6872202bac5c356f5af5cccc2026fe3ea42a99bb89d3383e22323bd"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"infXKBfY5I/peE12jy4KNpHsDe1fMcNCE8liZDWkTVleVTxX4DLUol5eFk1ueAZ8o8iokdzsO79t/Y9U6b+BBg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-26T10:38:05.101136Z","bundle_sha256":"c5d43f1988d99daa8dfc1546a3222487e9486e147adea1faa9378d0d4a989844"}}