{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:1999:KYMCB6OCSA6JYLT2NQB4XZXJ3B","short_pith_number":"pith:KYMCB6OC","canonical_record":{"source":{"id":"hep-ex/9909013","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"hep-ex","submitted_at":"1999-09-08T11:20:23Z","cross_cats_sorted":[],"title_canon_sha256":"0e02d4f590cf85308a4613d87a55e26d9c00a5bcd3571cabfe46c7895ffac55a","abstract_canon_sha256":"bed5618d54fc63c8fdad8647008f1b09368801b9e339d2d88a84a7aedde4fc89"},"schema_version":"1.0"},"canonical_sha256":"561820f9c2903c9c2e7a6c03cbe6e9d86cfcb92e43638186bc9b8ddb8596b4fc","source":{"kind":"arxiv","id":"hep-ex/9909013","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"hep-ex/9909013","created_at":"2026-07-04T15:27:13Z"},{"alias_kind":"arxiv_version","alias_value":"hep-ex/9909013v1","created_at":"2026-07-04T15:27:13Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.hep-ex/9909013","created_at":"2026-07-04T15:27:13Z"},{"alias_kind":"pith_short_12","alias_value":"KYMCB6OCSA6J","created_at":"2026-07-04T15:27:13Z"},{"alias_kind":"pith_short_16","alias_value":"KYMCB6OCSA6JYLT2","created_at":"2026-07-04T15:27:13Z"},{"alias_kind":"pith_short_8","alias_value":"KYMCB6OC","created_at":"2026-07-04T15:27:13Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:1999:KYMCB6OCSA6JYLT2NQB4XZXJ3B","target":"record","payload":{"canonical_record":{"source":{"id":"hep-ex/9909013","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"hep-ex","submitted_at":"1999-09-08T11:20:23Z","cross_cats_sorted":[],"title_canon_sha256":"0e02d4f590cf85308a4613d87a55e26d9c00a5bcd3571cabfe46c7895ffac55a","abstract_canon_sha256":"bed5618d54fc63c8fdad8647008f1b09368801b9e339d2d88a84a7aedde4fc89"},"schema_version":"1.0"},"canonical_sha256":"561820f9c2903c9c2e7a6c03cbe6e9d86cfcb92e43638186bc9b8ddb8596b4fc","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-04T15:27:13.537783Z","signature_b64":"zfhDdjRGXZUsQCvh0zCyWFlBWt3EjQI4mT6aKp/aZ+R2eMzh+sVzarfb5JDK4KQoeIqAGq5kcbPofNDtcstVCA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"561820f9c2903c9c2e7a6c03cbe6e9d86cfcb92e43638186bc9b8ddb8596b4fc","last_reissued_at":"2026-07-04T15:27:13.537433Z","signature_status":"signed_v1","first_computed_at":"2026-07-04T15:27:13.537433Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"hep-ex/9909013","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":"2026-07-04T15:27:13Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Z2QaWRSQ+zOiQMb+g4V/If9WrvuFBynSNPdxG1Vl6IHV7IB8Xsf/NVuyNi8A8YehUM5SQw+xr5lrn5oncZlnDA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-08T22:47:27.949105Z"},"content_sha256":"ea1e31bd2cd56c7e7970e00bb39e1e5257dc1d2c3200704ff086f84d37ef77d6","schema_version":"1.0","event_id":"sha256:ea1e31bd2cd56c7e7970e00bb39e1e5257dc1d2c3200704ff086f84d37ef77d6"},{"event_type":"graph_snapshot","subject_pith_number":"pith:1999:KYMCB6OCSA6JYLT2NQB4XZXJ3B","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Experimental evidence for a vector-like behaviour of Pomeron exchange","license":"","headline":"","cross_cats":[],"primary_cat":"hep-ex","authors_text":"et al, The WA102 Collaboration: D. Barberis","submitted_at":"1999-09-08T11:20:23Z","abstract_excerpt":"Evidence is presented that the Pomeron act as a non-conserved vector current. A study has been made of the azimuthal angle phi, which is defined as the angle between the pT vectors of the two outgoing protons, in the reaction pp -> pp(X0) for those resonances (X0) which are compatible with being produced by double Pomeron exchange. These distributions have been compared with a model which describes the Pomeron as a non-conserved vector current and a qualitative agreement is found. In addition, when one of the particles exchanged is known to have spin 0, namely pi-Pomeron exchange, the phi dist"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"hep-ex/9909013","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/hep-ex/9909013/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":"2026-07-04T15:27:13Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"zmHwHjUyp15o6Bc7Ofo010kYfLO9uirx2YCF8a5WxrjrsweNC4auqYvPu2rN21LlfIIoiYapEYnNa6rB5yO7CA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-08T22:47:27.949769Z"},"content_sha256":"2db7792e81dbe08dcc8824697520b70928b6a620dc4536e655e5fd14ec4f5e30","schema_version":"1.0","event_id":"sha256:2db7792e81dbe08dcc8824697520b70928b6a620dc4536e655e5fd14ec4f5e30"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/KYMCB6OCSA6JYLT2NQB4XZXJ3B/bundle.json","state_url":"https://pith.science/pith/KYMCB6OCSA6JYLT2NQB4XZXJ3B/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/KYMCB6OCSA6JYLT2NQB4XZXJ3B/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":"2026-08-08T22:47:27Z","links":{"resolver":"https://pith.science/pith/KYMCB6OCSA6JYLT2NQB4XZXJ3B","bundle":"https://pith.science/pith/KYMCB6OCSA6JYLT2NQB4XZXJ3B/bundle.json","state":"https://pith.science/pith/KYMCB6OCSA6JYLT2NQB4XZXJ3B/state.json","well_known_bundle":"https://pith.science/.well-known/pith/KYMCB6OCSA6JYLT2NQB4XZXJ3B/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:1999:KYMCB6OCSA6JYLT2NQB4XZXJ3B","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":"bed5618d54fc63c8fdad8647008f1b09368801b9e339d2d88a84a7aedde4fc89","cross_cats_sorted":[],"license":"","primary_cat":"hep-ex","submitted_at":"1999-09-08T11:20:23Z","title_canon_sha256":"0e02d4f590cf85308a4613d87a55e26d9c00a5bcd3571cabfe46c7895ffac55a"},"schema_version":"1.0","source":{"id":"hep-ex/9909013","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"hep-ex/9909013","created_at":"2026-07-04T15:27:13Z"},{"alias_kind":"arxiv_version","alias_value":"hep-ex/9909013v1","created_at":"2026-07-04T15:27:13Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.hep-ex/9909013","created_at":"2026-07-04T15:27:13Z"},{"alias_kind":"pith_short_12","alias_value":"KYMCB6OCSA6J","created_at":"2026-07-04T15:27:13Z"},{"alias_kind":"pith_short_16","alias_value":"KYMCB6OCSA6JYLT2","created_at":"2026-07-04T15:27:13Z"},{"alias_kind":"pith_short_8","alias_value":"KYMCB6OC","created_at":"2026-07-04T15:27:13Z"}],"graph_snapshots":[{"event_id":"sha256:2db7792e81dbe08dcc8824697520b70928b6a620dc4536e655e5fd14ec4f5e30","target":"graph","created_at":"2026-07-04T15:27:13Z","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/hep-ex/9909013/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Evidence is presented that the Pomeron act as a non-conserved vector current. A study has been made of the azimuthal angle phi, which is defined as the angle between the pT vectors of the two outgoing protons, in the reaction pp -> pp(X0) for those resonances (X0) which are compatible with being produced by double Pomeron exchange. These distributions have been compared with a model which describes the Pomeron as a non-conserved vector current and a qualitative agreement is found. In addition, when one of the particles exchanged is known to have spin 0, namely pi-Pomeron exchange, the phi dist","authors_text":"et al, The WA102 Collaboration: D. Barberis","cross_cats":[],"headline":"","license":"","primary_cat":"hep-ex","submitted_at":"1999-09-08T11:20:23Z","title":"Experimental evidence for a vector-like behaviour of Pomeron exchange"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"hep-ex/9909013","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:ea1e31bd2cd56c7e7970e00bb39e1e5257dc1d2c3200704ff086f84d37ef77d6","target":"record","created_at":"2026-07-04T15:27:13Z","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":"bed5618d54fc63c8fdad8647008f1b09368801b9e339d2d88a84a7aedde4fc89","cross_cats_sorted":[],"license":"","primary_cat":"hep-ex","submitted_at":"1999-09-08T11:20:23Z","title_canon_sha256":"0e02d4f590cf85308a4613d87a55e26d9c00a5bcd3571cabfe46c7895ffac55a"},"schema_version":"1.0","source":{"id":"hep-ex/9909013","kind":"arxiv","version":1}},"canonical_sha256":"561820f9c2903c9c2e7a6c03cbe6e9d86cfcb92e43638186bc9b8ddb8596b4fc","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"561820f9c2903c9c2e7a6c03cbe6e9d86cfcb92e43638186bc9b8ddb8596b4fc","first_computed_at":"2026-07-04T15:27:13.537433Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-04T15:27:13.537433Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"zfhDdjRGXZUsQCvh0zCyWFlBWt3EjQI4mT6aKp/aZ+R2eMzh+sVzarfb5JDK4KQoeIqAGq5kcbPofNDtcstVCA==","signature_status":"signed_v1","signed_at":"2026-07-04T15:27:13.537783Z","signed_message":"canonical_sha256_bytes"},"source_id":"hep-ex/9909013","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:ea1e31bd2cd56c7e7970e00bb39e1e5257dc1d2c3200704ff086f84d37ef77d6","sha256:2db7792e81dbe08dcc8824697520b70928b6a620dc4536e655e5fd14ec4f5e30"],"state_sha256":"b63bcd46ed272855bd03b1d40101ce98156e4eacb4b1868324b7c98cbd128a2c"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"cL5NnW1F9McOcWmFPKV2NbMvMvSCsrMEefm4+H3h6tJq2R1GxhVjxUJiqHm/X71dWleoyDbXJppz16Fj1d7QCQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-08T22:47:27.953144Z","bundle_sha256":"f8ea492fe038913e1aa91a653f2a2749baf69a0d097cc37ab1a6fbe29f687fd2"}}