{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2016:LGTJ2BHJR53DWLQIGHCYXJMSI2","short_pith_number":"pith:LGTJ2BHJ","canonical_record":{"source":{"id":"1606.08067","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2016-06-26T18:48:13Z","cross_cats_sorted":[],"title_canon_sha256":"d883f7783d4dc47be318ab7e63c8e0a59dada53741ac0483614b5f95983623de","abstract_canon_sha256":"f156106928b366988a6465421ea50d91806996935c18eced09379ec507257999"},"schema_version":"1.0"},"canonical_sha256":"59a69d04e98f763b2e0831c58ba59246b8fd1ee3f39471c8ed48e923815cc237","source":{"kind":"arxiv","id":"1606.08067","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1606.08067","created_at":"2026-05-18T01:00:25Z"},{"alias_kind":"arxiv_version","alias_value":"1606.08067v1","created_at":"2026-05-18T01:00:25Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1606.08067","created_at":"2026-05-18T01:00:25Z"},{"alias_kind":"pith_short_12","alias_value":"LGTJ2BHJR53D","created_at":"2026-05-18T12:30:29Z"},{"alias_kind":"pith_short_16","alias_value":"LGTJ2BHJR53DWLQI","created_at":"2026-05-18T12:30:29Z"},{"alias_kind":"pith_short_8","alias_value":"LGTJ2BHJ","created_at":"2026-05-18T12:30:29Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2016:LGTJ2BHJR53DWLQIGHCYXJMSI2","target":"record","payload":{"canonical_record":{"source":{"id":"1606.08067","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2016-06-26T18:48:13Z","cross_cats_sorted":[],"title_canon_sha256":"d883f7783d4dc47be318ab7e63c8e0a59dada53741ac0483614b5f95983623de","abstract_canon_sha256":"f156106928b366988a6465421ea50d91806996935c18eced09379ec507257999"},"schema_version":"1.0"},"canonical_sha256":"59a69d04e98f763b2e0831c58ba59246b8fd1ee3f39471c8ed48e923815cc237","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:00:25.401464Z","signature_b64":"F4hdt/jY7FxUtawXSU/sERvT76KH2+bP5/qljRz9wHWAyjyyydmbSWeZUL7rxnyhVf7OmxcE8vEkN/plNXc4Bg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"59a69d04e98f763b2e0831c58ba59246b8fd1ee3f39471c8ed48e923815cc237","last_reissued_at":"2026-05-18T01:00:25.400964Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:00:25.400964Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1606.08067","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":"2026-05-18T01:00:25Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"lWuS87JiAe9YQyzDmX4sXUrVkxN5/uhvczuuAXg/HBYM1G5Ybw24Taw2M1ZAzd42fkCKCEg20Btw3ULWaAxWDQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-28T11:31:47.099997Z"},"content_sha256":"dfd45ae0dfe83563eb8612785c64049763f996a255f976b156ca50cbb5ce8f1e","schema_version":"1.0","event_id":"sha256:dfd45ae0dfe83563eb8612785c64049763f996a255f976b156ca50cbb5ce8f1e"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2016:LGTJ2BHJR53DWLQIGHCYXJMSI2","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Helicity in Proton-Proton Elastic Scattering and the Spin Structure of the Pomeron","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"hep-ph","authors_text":"Antoni Szczurek, Carlo Ewerz, Otto Nachtmann, Piotr Lebiedowicz","submitted_at":"2016-06-26T18:48:13Z","abstract_excerpt":"We discuss different models for the spin structure of the nonperturbative pomeron: scalar, vector, and rank-2 symmetric tensor. The ratio of single-helicity-flip to helicity-conserving amplitudes in polarised high-energy proton-proton elastic scattering, known as the complex r_5 parameter, is calculated for these models. We compare our results to experimental data from the STAR experiment. We show that the spin-0 (scalar) pomeron model is clearly excluded by the data, while the vector pomeron is inconsistent with the rules of quantum field theory. The tensor pomeron is found to be perfectly co"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1606.08067","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":"2026-05-18T01:00:25Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"/pCHidWaLDLDcEQnPgxFluiclTCgQFgRyy8s5jsO4RNdTsM1NM1gmIrdbHm5NgrMxFMjHisZja2k6Nvs+3YGAg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-28T11:31:47.100356Z"},"content_sha256":"934ee5af807bb5b0d3712c7aea6cadef7ca9db382eeecf6dc6b05bc551f65620","schema_version":"1.0","event_id":"sha256:934ee5af807bb5b0d3712c7aea6cadef7ca9db382eeecf6dc6b05bc551f65620"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/LGTJ2BHJR53DWLQIGHCYXJMSI2/bundle.json","state_url":"https://pith.science/pith/LGTJ2BHJR53DWLQIGHCYXJMSI2/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/LGTJ2BHJR53DWLQIGHCYXJMSI2/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":"2026-05-28T11:31:47Z","links":{"resolver":"https://pith.science/pith/LGTJ2BHJR53DWLQIGHCYXJMSI2","bundle":"https://pith.science/pith/LGTJ2BHJR53DWLQIGHCYXJMSI2/bundle.json","state":"https://pith.science/pith/LGTJ2BHJR53DWLQIGHCYXJMSI2/state.json","well_known_bundle":"https://pith.science/.well-known/pith/LGTJ2BHJR53DWLQIGHCYXJMSI2/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2016:LGTJ2BHJR53DWLQIGHCYXJMSI2","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":"f156106928b366988a6465421ea50d91806996935c18eced09379ec507257999","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2016-06-26T18:48:13Z","title_canon_sha256":"d883f7783d4dc47be318ab7e63c8e0a59dada53741ac0483614b5f95983623de"},"schema_version":"1.0","source":{"id":"1606.08067","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1606.08067","created_at":"2026-05-18T01:00:25Z"},{"alias_kind":"arxiv_version","alias_value":"1606.08067v1","created_at":"2026-05-18T01:00:25Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1606.08067","created_at":"2026-05-18T01:00:25Z"},{"alias_kind":"pith_short_12","alias_value":"LGTJ2BHJR53D","created_at":"2026-05-18T12:30:29Z"},{"alias_kind":"pith_short_16","alias_value":"LGTJ2BHJR53DWLQI","created_at":"2026-05-18T12:30:29Z"},{"alias_kind":"pith_short_8","alias_value":"LGTJ2BHJ","created_at":"2026-05-18T12:30:29Z"}],"graph_snapshots":[{"event_id":"sha256:934ee5af807bb5b0d3712c7aea6cadef7ca9db382eeecf6dc6b05bc551f65620","target":"graph","created_at":"2026-05-18T01:00:25Z","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 discuss different models for the spin structure of the nonperturbative pomeron: scalar, vector, and rank-2 symmetric tensor. The ratio of single-helicity-flip to helicity-conserving amplitudes in polarised high-energy proton-proton elastic scattering, known as the complex r_5 parameter, is calculated for these models. We compare our results to experimental data from the STAR experiment. We show that the spin-0 (scalar) pomeron model is clearly excluded by the data, while the vector pomeron is inconsistent with the rules of quantum field theory. The tensor pomeron is found to be perfectly co","authors_text":"Antoni Szczurek, Carlo Ewerz, Otto Nachtmann, Piotr Lebiedowicz","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2016-06-26T18:48:13Z","title":"Helicity in Proton-Proton Elastic Scattering and the Spin Structure of the Pomeron"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1606.08067","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:dfd45ae0dfe83563eb8612785c64049763f996a255f976b156ca50cbb5ce8f1e","target":"record","created_at":"2026-05-18T01:00:25Z","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":"f156106928b366988a6465421ea50d91806996935c18eced09379ec507257999","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2016-06-26T18:48:13Z","title_canon_sha256":"d883f7783d4dc47be318ab7e63c8e0a59dada53741ac0483614b5f95983623de"},"schema_version":"1.0","source":{"id":"1606.08067","kind":"arxiv","version":1}},"canonical_sha256":"59a69d04e98f763b2e0831c58ba59246b8fd1ee3f39471c8ed48e923815cc237","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"59a69d04e98f763b2e0831c58ba59246b8fd1ee3f39471c8ed48e923815cc237","first_computed_at":"2026-05-18T01:00:25.400964Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:00:25.400964Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"F4hdt/jY7FxUtawXSU/sERvT76KH2+bP5/qljRz9wHWAyjyyydmbSWeZUL7rxnyhVf7OmxcE8vEkN/plNXc4Bg==","signature_status":"signed_v1","signed_at":"2026-05-18T01:00:25.401464Z","signed_message":"canonical_sha256_bytes"},"source_id":"1606.08067","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:dfd45ae0dfe83563eb8612785c64049763f996a255f976b156ca50cbb5ce8f1e","sha256:934ee5af807bb5b0d3712c7aea6cadef7ca9db382eeecf6dc6b05bc551f65620"],"state_sha256":"5feab0f2abdc71d0956159167053ba3d8312490525bcef9479f51cf5a5117b1f"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"pzs6Ub/cP2KtkP2kqZEdGNNdoB+mQ0Y8ZFZq8VQOSU+ZHNn9gad7Lv59kvKb0uKgj6jS1/UoQ7z+FgIzFqWaDg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-28T11:31:47.102473Z","bundle_sha256":"6b83f5c149ac8a524b8f59f096f5c2e2ab8065180e7d76631801d7726dad5d39"}}