{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2025:WCJ7RURXAGRQFJ2CXIHFHRDNDB","short_pith_number":"pith:WCJ7RURX","canonical_record":{"source":{"id":"2506.04846","kind":"arxiv","version":2},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"hep-ph","submitted_at":"2025-06-05T10:14:26Z","cross_cats_sorted":["hep-ex"],"title_canon_sha256":"36f359fef9c211f9d6468365c0770de4b27abcfd8865bdee93b7b3f804eeb8ce","abstract_canon_sha256":"5de6c2480bfa64f5682fd293cd4f856428f8f9ea819d0148f2cfb7ce1afeeb76"},"schema_version":"1.0"},"canonical_sha256":"b093f8d23701a302a742ba0e53c46d186c64e4ebb4d046c81c01a90de5366d91","source":{"kind":"arxiv","id":"2506.04846","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2506.04846","created_at":"2026-07-05T11:27:30Z"},{"alias_kind":"arxiv_version","alias_value":"2506.04846v2","created_at":"2026-07-05T11:27:30Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2506.04846","created_at":"2026-07-05T11:27:30Z"},{"alias_kind":"pith_short_12","alias_value":"WCJ7RURXAGRQ","created_at":"2026-07-05T11:27:30Z"},{"alias_kind":"pith_short_16","alias_value":"WCJ7RURXAGRQFJ2C","created_at":"2026-07-05T11:27:30Z"},{"alias_kind":"pith_short_8","alias_value":"WCJ7RURX","created_at":"2026-07-05T11:27:30Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2025:WCJ7RURXAGRQFJ2CXIHFHRDNDB","target":"record","payload":{"canonical_record":{"source":{"id":"2506.04846","kind":"arxiv","version":2},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"hep-ph","submitted_at":"2025-06-05T10:14:26Z","cross_cats_sorted":["hep-ex"],"title_canon_sha256":"36f359fef9c211f9d6468365c0770de4b27abcfd8865bdee93b7b3f804eeb8ce","abstract_canon_sha256":"5de6c2480bfa64f5682fd293cd4f856428f8f9ea819d0148f2cfb7ce1afeeb76"},"schema_version":"1.0"},"canonical_sha256":"b093f8d23701a302a742ba0e53c46d186c64e4ebb4d046c81c01a90de5366d91","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T11:27:30.584033Z","signature_b64":"rC5xLrJiuos1UgfXZEgKWd3Slu/E1S+hMCZgVPzVMNvBxuun2DXQeo8w7yEh9r7NDVIR0LWqizZcLy7K4V5+CQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"b093f8d23701a302a742ba0e53c46d186c64e4ebb4d046c81c01a90de5366d91","last_reissued_at":"2026-07-05T11:27:30.583521Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T11:27:30.583521Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2506.04846","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":"2026-07-05T11:27:30Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Vk++bwAtroEiDamR0JguF0ueRJQHxQ60qJzmMQgnCMe/njpp4yvqeu9CH6kQLrMAi+RdEa3qNjANFKQ6wT9fDw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-09T21:23:02.237580Z"},"content_sha256":"cbf2fe15573b438e6f52d0678e4a0fefe5b7b951ff217e1935fedc1f353f2781","schema_version":"1.0","event_id":"sha256:cbf2fe15573b438e6f52d0678e4a0fefe5b7b951ff217e1935fedc1f353f2781"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2025:WCJ7RURXAGRQFJ2CXIHFHRDNDB","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Central exclusive production of $\\eta$ and $\\eta'$ mesons in diffractive proton-proton collisions at the LHC within the tensor-pomeron approach","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":["hep-ex"],"primary_cat":"hep-ph","authors_text":"Antoni Szczurek, Otto Nachtmann, Piotr Lebiedowicz","submitted_at":"2025-06-05T10:14:26Z","abstract_excerpt":"We present a study of the central exclusive production (CEP) of $\\eta$ and $\\eta'(958)$ mesons in diffractive proton-proton collisions at high energies. The amplitudes, including pomeron and $f_{2 \\mathbb{R}}$ reggeon exchanges, are calculated within the tensor-pomeron model. Absorption effects are also taken into account at the amplitude level. We fit some undetermined model parameters (coupling constants and cutoff parameters in form factors) to the WA102 experimental data and then make predictions for the LHC energy $\\sqrt{s} = 13$ TeV. Both, total cross sections and several differential di"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2506.04846","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/2506.04846/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":"2026-07-05T11:27:30Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"P0oLU5Eg3VJ1keP3B8Q6NZWb+3SObcR7I37N3qTlMiiUjdZkzYkFKsy9jL5RrK+Gb+LjUa5wgNR/sm6wjJPEBw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-09T21:23:02.238464Z"},"content_sha256":"b1b976bc6dc00fa4d830e7f779405fc35f35f335eb3388d4af2f8b4ad85776de","schema_version":"1.0","event_id":"sha256:b1b976bc6dc00fa4d830e7f779405fc35f35f335eb3388d4af2f8b4ad85776de"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/WCJ7RURXAGRQFJ2CXIHFHRDNDB/bundle.json","state_url":"https://pith.science/pith/WCJ7RURXAGRQFJ2CXIHFHRDNDB/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/WCJ7RURXAGRQFJ2CXIHFHRDNDB/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":"2026-08-09T21:23:02Z","links":{"resolver":"https://pith.science/pith/WCJ7RURXAGRQFJ2CXIHFHRDNDB","bundle":"https://pith.science/pith/WCJ7RURXAGRQFJ2CXIHFHRDNDB/bundle.json","state":"https://pith.science/pith/WCJ7RURXAGRQFJ2CXIHFHRDNDB/state.json","well_known_bundle":"https://pith.science/.well-known/pith/WCJ7RURXAGRQFJ2CXIHFHRDNDB/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2025:WCJ7RURXAGRQFJ2CXIHFHRDNDB","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":"5de6c2480bfa64f5682fd293cd4f856428f8f9ea819d0148f2cfb7ce1afeeb76","cross_cats_sorted":["hep-ex"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"hep-ph","submitted_at":"2025-06-05T10:14:26Z","title_canon_sha256":"36f359fef9c211f9d6468365c0770de4b27abcfd8865bdee93b7b3f804eeb8ce"},"schema_version":"1.0","source":{"id":"2506.04846","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2506.04846","created_at":"2026-07-05T11:27:30Z"},{"alias_kind":"arxiv_version","alias_value":"2506.04846v2","created_at":"2026-07-05T11:27:30Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2506.04846","created_at":"2026-07-05T11:27:30Z"},{"alias_kind":"pith_short_12","alias_value":"WCJ7RURXAGRQ","created_at":"2026-07-05T11:27:30Z"},{"alias_kind":"pith_short_16","alias_value":"WCJ7RURXAGRQFJ2C","created_at":"2026-07-05T11:27:30Z"},{"alias_kind":"pith_short_8","alias_value":"WCJ7RURX","created_at":"2026-07-05T11:27:30Z"}],"graph_snapshots":[{"event_id":"sha256:b1b976bc6dc00fa4d830e7f779405fc35f35f335eb3388d4af2f8b4ad85776de","target":"graph","created_at":"2026-07-05T11:27:30Z","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/2506.04846/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We present a study of the central exclusive production (CEP) of $\\eta$ and $\\eta'(958)$ mesons in diffractive proton-proton collisions at high energies. The amplitudes, including pomeron and $f_{2 \\mathbb{R}}$ reggeon exchanges, are calculated within the tensor-pomeron model. Absorption effects are also taken into account at the amplitude level. We fit some undetermined model parameters (coupling constants and cutoff parameters in form factors) to the WA102 experimental data and then make predictions for the LHC energy $\\sqrt{s} = 13$ TeV. Both, total cross sections and several differential di","authors_text":"Antoni Szczurek, Otto Nachtmann, Piotr Lebiedowicz","cross_cats":["hep-ex"],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"hep-ph","submitted_at":"2025-06-05T10:14:26Z","title":"Central exclusive production of $\\eta$ and $\\eta'$ mesons in diffractive proton-proton collisions at the LHC within the tensor-pomeron approach"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2506.04846","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:cbf2fe15573b438e6f52d0678e4a0fefe5b7b951ff217e1935fedc1f353f2781","target":"record","created_at":"2026-07-05T11:27:30Z","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":"5de6c2480bfa64f5682fd293cd4f856428f8f9ea819d0148f2cfb7ce1afeeb76","cross_cats_sorted":["hep-ex"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"hep-ph","submitted_at":"2025-06-05T10:14:26Z","title_canon_sha256":"36f359fef9c211f9d6468365c0770de4b27abcfd8865bdee93b7b3f804eeb8ce"},"schema_version":"1.0","source":{"id":"2506.04846","kind":"arxiv","version":2}},"canonical_sha256":"b093f8d23701a302a742ba0e53c46d186c64e4ebb4d046c81c01a90de5366d91","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"b093f8d23701a302a742ba0e53c46d186c64e4ebb4d046c81c01a90de5366d91","first_computed_at":"2026-07-05T11:27:30.583521Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T11:27:30.583521Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"rC5xLrJiuos1UgfXZEgKWd3Slu/E1S+hMCZgVPzVMNvBxuun2DXQeo8w7yEh9r7NDVIR0LWqizZcLy7K4V5+CQ==","signature_status":"signed_v1","signed_at":"2026-07-05T11:27:30.584033Z","signed_message":"canonical_sha256_bytes"},"source_id":"2506.04846","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:cbf2fe15573b438e6f52d0678e4a0fefe5b7b951ff217e1935fedc1f353f2781","sha256:b1b976bc6dc00fa4d830e7f779405fc35f35f335eb3388d4af2f8b4ad85776de"],"state_sha256":"8b8506485c8fafc28328ce51fb83c3d86fa8945a71e9e91eca72b378dd3d749e"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"apIxsi/BMIRP4uwdNJ2U2YZyFG5SlFsO8YZaMNAWk2edSCt6dl7IwAu10DAtIuoyjijPhvQpDJhpoo4fuosRCg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-09T21:23:02.245762Z","bundle_sha256":"740b0be7ad4cd68fd7b0cdea0c44f5298e5745e8b3d8fa772b39b31f44d6e8d2"}}