{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:1995:DCGXFJBJDDT7P2VSRREQZLBCMT","short_pith_number":"pith:DCGXFJBJ","canonical_record":{"source":{"id":"hep-ex/9503015","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"hep-ex","submitted_at":"1995-03-27T15:57:36Z","cross_cats_sorted":[],"title_canon_sha256":"288594104104ac503de49c395e4d372c507160f785d6a26514a5f764940b0439","abstract_canon_sha256":"67340dc4859fb4b7e445bb1723b947ab3e8805458a8e5b2d8c4f45f7baeffb3a"},"schema_version":"1.0"},"canonical_sha256":"188d72a42918e7f7eab28c490cac2264e62b5ee58979f96b27610f102242d01d","source":{"kind":"arxiv","id":"hep-ex/9503015","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"hep-ex/9503015","created_at":"2026-05-18T03:47:22Z"},{"alias_kind":"arxiv_version","alias_value":"hep-ex/9503015v1","created_at":"2026-05-18T03:47:22Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.hep-ex/9503015","created_at":"2026-05-18T03:47:22Z"},{"alias_kind":"pith_short_12","alias_value":"DCGXFJBJDDT7","created_at":"2026-05-18T12:25:47Z"},{"alias_kind":"pith_short_16","alias_value":"DCGXFJBJDDT7P2VS","created_at":"2026-05-18T12:25:47Z"},{"alias_kind":"pith_short_8","alias_value":"DCGXFJBJ","created_at":"2026-05-18T12:25:47Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:1995:DCGXFJBJDDT7P2VSRREQZLBCMT","target":"record","payload":{"canonical_record":{"source":{"id":"hep-ex/9503015","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"hep-ex","submitted_at":"1995-03-27T15:57:36Z","cross_cats_sorted":[],"title_canon_sha256":"288594104104ac503de49c395e4d372c507160f785d6a26514a5f764940b0439","abstract_canon_sha256":"67340dc4859fb4b7e445bb1723b947ab3e8805458a8e5b2d8c4f45f7baeffb3a"},"schema_version":"1.0"},"canonical_sha256":"188d72a42918e7f7eab28c490cac2264e62b5ee58979f96b27610f102242d01d","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T03:47:22.068713Z","signature_b64":"ZWIy5O+4BWoETlYUX83kmBWXEFmoldray7Kqs0xrwmGy3Tnxu7pGpi6Z7fe2bPWBT7kUDdQfamnltJTgh2QJAg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"188d72a42918e7f7eab28c490cac2264e62b5ee58979f96b27610f102242d01d","last_reissued_at":"2026-05-18T03:47:22.068052Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T03:47:22.068052Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"hep-ex/9503015","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":"2026-05-18T03:47:22Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"TVS5Uat1+A5hSl3hnGyhuOzgSatEqsuWyjCUPew3Tc++j9pE7pnsPNzxQMqsqox8vs0LSMuyxeHXu3puwvVsCQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-30T22:29:45.726935Z"},"content_sha256":"8af685999d3a1838bca9b33a82978bca1aa42ed06a4e36f04360b820f8352c53","schema_version":"1.0","event_id":"sha256:8af685999d3a1838bca9b33a82978bca1aa42ed06a4e36f04360b820f8352c53"},{"event_type":"graph_snapshot","subject_pith_number":"pith:1995:DCGXFJBJDDT7P2VSRREQZLBCMT","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Measurement of the Cross Section for the Reaction $\\gamma p \\to \\jpsi~p$ with the ZEUS Detector at HERA","license":"","headline":"","cross_cats":[],"primary_cat":"hep-ex","authors_text":"ZEUS Collaboration","submitted_at":"1995-03-27T15:57:36Z","abstract_excerpt":"This paper reports the cross section measurements for the process ep $\\rightarrow$ e~\\jpsi~p for $Q^2 < 4$ GeV$^2$ at $\\sqrt s = 296$ GeV, based on an integrated luminosity of about 0.5~pb$^{-1}$, using the ZEUS detector. The \\jpsi~was detected in its $\\rm e^{+}e^{-}$ and $\\rm \\mu^{+}\\mu^{-}$ decay modes. The photoproduction cross section was measured to be $52^{ \\ +7}_{-12}\\pm 10$~nb at an average $\\gamma$p centre of mass energy of 67 GeV and $71^{+13}_{-20}\\pm 12$~nb at 114 GeV. The significant rise of the cross section compared to lower energy measurements is not in agreement with VDM model"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"hep-ex/9503015","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":"2026-05-18T03:47:22Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"+dKr+ltnbnIhJrh5HaxjGSsby+1CLr+fIUAdB+6wHOlEbDxKwddcl2N3BzIl8y410rY99acDS2XutUL514HKDg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-30T22:29:45.727671Z"},"content_sha256":"426a6dbcbf758848dbf772d0c658ff7a580beae0426dd42072c4a19d9050ed11","schema_version":"1.0","event_id":"sha256:426a6dbcbf758848dbf772d0c658ff7a580beae0426dd42072c4a19d9050ed11"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/DCGXFJBJDDT7P2VSRREQZLBCMT/bundle.json","state_url":"https://pith.science/pith/DCGXFJBJDDT7P2VSRREQZLBCMT/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/DCGXFJBJDDT7P2VSRREQZLBCMT/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":"2026-05-30T22:29:45Z","links":{"resolver":"https://pith.science/pith/DCGXFJBJDDT7P2VSRREQZLBCMT","bundle":"https://pith.science/pith/DCGXFJBJDDT7P2VSRREQZLBCMT/bundle.json","state":"https://pith.science/pith/DCGXFJBJDDT7P2VSRREQZLBCMT/state.json","well_known_bundle":"https://pith.science/.well-known/pith/DCGXFJBJDDT7P2VSRREQZLBCMT/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:1995:DCGXFJBJDDT7P2VSRREQZLBCMT","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":"67340dc4859fb4b7e445bb1723b947ab3e8805458a8e5b2d8c4f45f7baeffb3a","cross_cats_sorted":[],"license":"","primary_cat":"hep-ex","submitted_at":"1995-03-27T15:57:36Z","title_canon_sha256":"288594104104ac503de49c395e4d372c507160f785d6a26514a5f764940b0439"},"schema_version":"1.0","source":{"id":"hep-ex/9503015","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"hep-ex/9503015","created_at":"2026-05-18T03:47:22Z"},{"alias_kind":"arxiv_version","alias_value":"hep-ex/9503015v1","created_at":"2026-05-18T03:47:22Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.hep-ex/9503015","created_at":"2026-05-18T03:47:22Z"},{"alias_kind":"pith_short_12","alias_value":"DCGXFJBJDDT7","created_at":"2026-05-18T12:25:47Z"},{"alias_kind":"pith_short_16","alias_value":"DCGXFJBJDDT7P2VS","created_at":"2026-05-18T12:25:47Z"},{"alias_kind":"pith_short_8","alias_value":"DCGXFJBJ","created_at":"2026-05-18T12:25:47Z"}],"graph_snapshots":[{"event_id":"sha256:426a6dbcbf758848dbf772d0c658ff7a580beae0426dd42072c4a19d9050ed11","target":"graph","created_at":"2026-05-18T03:47:22Z","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":"This paper reports the cross section measurements for the process ep $\\rightarrow$ e~\\jpsi~p for $Q^2 < 4$ GeV$^2$ at $\\sqrt s = 296$ GeV, based on an integrated luminosity of about 0.5~pb$^{-1}$, using the ZEUS detector. The \\jpsi~was detected in its $\\rm e^{+}e^{-}$ and $\\rm \\mu^{+}\\mu^{-}$ decay modes. The photoproduction cross section was measured to be $52^{ \\ +7}_{-12}\\pm 10$~nb at an average $\\gamma$p centre of mass energy of 67 GeV and $71^{+13}_{-20}\\pm 12$~nb at 114 GeV. The significant rise of the cross section compared to lower energy measurements is not in agreement with VDM model","authors_text":"ZEUS Collaboration","cross_cats":[],"headline":"","license":"","primary_cat":"hep-ex","submitted_at":"1995-03-27T15:57:36Z","title":"Measurement of the Cross Section for the Reaction $\\gamma p \\to \\jpsi~p$ with the ZEUS Detector at HERA"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"hep-ex/9503015","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":"sha256:8af685999d3a1838bca9b33a82978bca1aa42ed06a4e36f04360b820f8352c53","target":"record","created_at":"2026-05-18T03:47:22Z","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":"67340dc4859fb4b7e445bb1723b947ab3e8805458a8e5b2d8c4f45f7baeffb3a","cross_cats_sorted":[],"license":"","primary_cat":"hep-ex","submitted_at":"1995-03-27T15:57:36Z","title_canon_sha256":"288594104104ac503de49c395e4d372c507160f785d6a26514a5f764940b0439"},"schema_version":"1.0","source":{"id":"hep-ex/9503015","kind":"arxiv","version":1}},"canonical_sha256":"188d72a42918e7f7eab28c490cac2264e62b5ee58979f96b27610f102242d01d","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"188d72a42918e7f7eab28c490cac2264e62b5ee58979f96b27610f102242d01d","first_computed_at":"2026-05-18T03:47:22.068052Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T03:47:22.068052Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"ZWIy5O+4BWoETlYUX83kmBWXEFmoldray7Kqs0xrwmGy3Tnxu7pGpi6Z7fe2bPWBT7kUDdQfamnltJTgh2QJAg==","signature_status":"signed_v1","signed_at":"2026-05-18T03:47:22.068713Z","signed_message":"canonical_sha256_bytes"},"source_id":"hep-ex/9503015","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:8af685999d3a1838bca9b33a82978bca1aa42ed06a4e36f04360b820f8352c53","sha256:426a6dbcbf758848dbf772d0c658ff7a580beae0426dd42072c4a19d9050ed11"],"state_sha256":"9d5648d31095d4acef84e58a036bc28c1469bb97e2ce7440ca9dcc6f0906f187"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"BrSffc1Pq/PNZsGZGbxNaTWQRMakrcPqZYNrMKaZgteSlNWOOoYKU8jNLDUjBE4+qg9sTOCwUYtkHg/zsnAWAQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-30T22:29:45.731439Z","bundle_sha256":"b3db6bcd5b343773189162747b5715c82ef234fa8c35a2d69fd7bd94ecdfe1a2"}}