{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2008:GJSHKYZZAQO44EZ55LWZBT7ZXF","short_pith_number":"pith:GJSHKYZZ","canonical_record":{"source":{"id":"0804.3509","kind":"arxiv","version":5},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ex","submitted_at":"2008-04-22T15:33:37Z","cross_cats_sorted":[],"title_canon_sha256":"a1c24becb609b4fbd05de45ef8921727df80060f935359a15b7897ead6bf4334","abstract_canon_sha256":"89aed172660791a80cdffdecfae469326d11514bb5566d80cdd04f7362214bcd"},"schema_version":"1.0"},"canonical_sha256":"3264756339041dce133deaed90cff9b9545e4104fcc3aa04ab3d86c8e9e28a85","source":{"kind":"arxiv","id":"0804.3509","version":5},"source_aliases":[{"alias_kind":"arxiv","alias_value":"0804.3509","created_at":"2026-07-04T17:18:18Z"},{"alias_kind":"arxiv_version","alias_value":"0804.3509v5","created_at":"2026-07-04T17:18:18Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0804.3509","created_at":"2026-07-04T17:18:18Z"},{"alias_kind":"pith_short_12","alias_value":"GJSHKYZZAQO4","created_at":"2026-07-04T17:18:18Z"},{"alias_kind":"pith_short_16","alias_value":"GJSHKYZZAQO44EZ5","created_at":"2026-07-04T17:18:18Z"},{"alias_kind":"pith_short_8","alias_value":"GJSHKYZZ","created_at":"2026-07-04T17:18:18Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2008:GJSHKYZZAQO44EZ55LWZBT7ZXF","target":"record","payload":{"canonical_record":{"source":{"id":"0804.3509","kind":"arxiv","version":5},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ex","submitted_at":"2008-04-22T15:33:37Z","cross_cats_sorted":[],"title_canon_sha256":"a1c24becb609b4fbd05de45ef8921727df80060f935359a15b7897ead6bf4334","abstract_canon_sha256":"89aed172660791a80cdffdecfae469326d11514bb5566d80cdd04f7362214bcd"},"schema_version":"1.0"},"canonical_sha256":"3264756339041dce133deaed90cff9b9545e4104fcc3aa04ab3d86c8e9e28a85","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-04T17:18:18.537957Z","signature_b64":"Gc45LPrGdB5Vm3nnRt2kzrj7xs46LOUcrhr9PVa6siOF4EH1321v051AT7cC6E2KMbkF6Yy2Mh5bKMrs6ozhDg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"3264756339041dce133deaed90cff9b9545e4104fcc3aa04ab3d86c8e9e28a85","last_reissued_at":"2026-07-04T17:18:18.537533Z","signature_status":"signed_v1","first_computed_at":"2026-07-04T17:18:18.537533Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"0804.3509","source_version":5,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-07-04T17:18:18Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"VlAF/GhvQx8JelgxL8xkIhoM07gqvklfHORFnmlphriI4hCczB6MaM9/jwvL2k+B6/NkJjg296zFLtKGt1PfCA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-18T00:23:59.811807Z"},"content_sha256":"a8a308171373810a2e88e65c00fab7081fc2945a2038a5e51216314e4be9d304","schema_version":"1.0","event_id":"sha256:a8a308171373810a2e88e65c00fab7081fc2945a2038a5e51216314e4be9d304"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2008:GJSHKYZZAQO44EZ55LWZBT7ZXF","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Electroproduction of Eta Mesons in the S11(1535) Resonance Region at High Momentum Transfer","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"hep-ex","authors_text":"A. Ahmidouch, A. K. Opper, A. Uzzle, A. Villano, B. Moziak, B. Wojtsekhowski, C. Bertoncini, C. E. Keppel, C. Smith, C. Xu, D. Day, D. Dutta, D. Gaskell, D. G. Meekins, E. Hungerford, E. Schulte, E. Segbefia, F. R. Wesselmann, G. M. Huber, G. Niculescu, G. R. Smith, G. S. Adams, G. Warren, H. Breuer, H. C. Fenker, H. Mkrtchyan, H. Zhu, I. Niculescu, J. A. Dunne, J. Arrington, J. J. Kelly, J. Reinhold, J. Roche, K. Hafidi, K. Joo, L. Gan, L. Tang, L. Yuan, M. E. Christy, M. K. Jones, M. M. Dalton, M. Ungaro, M. Wang, N. Benmouna, N. El Khayari, N. Kalantarians, O. K. Baker, P. E. Bosted, P. E. Reimer, P. Markowitz, P. McKee, P. Stoler, R. Asaturyan, R. Ent, R. J. Holt, S. A. Wood, S. Danagoulian, S. E. Rock, S. H. Connell, S. Malace, S. Vidakovic, T. Angelescu, T. Dodario, T. Horn, T. Navasardyan, T. Ostapenko, V. Kubarovsky, V. Tadevosyan, V. Tvaskis, V. V. Frolov, W. F. Vulcan, W. Hinton, W. U. Boeglin, X. Jiang, X. Zheng, Y. Cui, Y. Li, Y. Liang","submitted_at":"2008-04-22T15:33:37Z","abstract_excerpt":"The differential cross-section for the process p(e,e'p)eta has been measured at Q2 ~ 5.7 and 7.0 (GeV/c)2 for centre-of-mass energies from threshold to 1.8 GeV, encompassing the S11(1535) resonance, which dominates the channel. This is the highest momentum transfer measurement of this exclusive process to date. The helicity-conserving transition amplitude A_1/2, for the production of the S11(1535) resonance, is extracted from the data. Within the limited Q2 now measured, this quantity appears to begin scaling as 1/Q3 - a predicted, but not definitive, signal of the dominance of perturbative QC"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0804.3509","kind":"arxiv","version":5},"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/0804.3509/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":"2026-07-04T17:18:18Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"tj0UzAG0ctvc5CHABZh5sHYsGI9lU5SqKI5kjYsBQKIQytqFlZpcSzR6DEEXAHdJuKC3OVBmK7x31D30xv64Bw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-18T00:23:59.812757Z"},"content_sha256":"85c07eb247b3b5f715228dc72c4fffe5dffd0a9d10cb38a0e6d7c5e4109a117e","schema_version":"1.0","event_id":"sha256:85c07eb247b3b5f715228dc72c4fffe5dffd0a9d10cb38a0e6d7c5e4109a117e"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/GJSHKYZZAQO44EZ55LWZBT7ZXF/bundle.json","state_url":"https://pith.science/pith/GJSHKYZZAQO44EZ55LWZBT7ZXF/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/GJSHKYZZAQO44EZ55LWZBT7ZXF/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":"2026-08-18T00:23:59Z","links":{"resolver":"https://pith.science/pith/GJSHKYZZAQO44EZ55LWZBT7ZXF","bundle":"https://pith.science/pith/GJSHKYZZAQO44EZ55LWZBT7ZXF/bundle.json","state":"https://pith.science/pith/GJSHKYZZAQO44EZ55LWZBT7ZXF/state.json","well_known_bundle":"https://pith.science/.well-known/pith/GJSHKYZZAQO44EZ55LWZBT7ZXF/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2008:GJSHKYZZAQO44EZ55LWZBT7ZXF","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":"89aed172660791a80cdffdecfae469326d11514bb5566d80cdd04f7362214bcd","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ex","submitted_at":"2008-04-22T15:33:37Z","title_canon_sha256":"a1c24becb609b4fbd05de45ef8921727df80060f935359a15b7897ead6bf4334"},"schema_version":"1.0","source":{"id":"0804.3509","kind":"arxiv","version":5}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"0804.3509","created_at":"2026-07-04T17:18:18Z"},{"alias_kind":"arxiv_version","alias_value":"0804.3509v5","created_at":"2026-07-04T17:18:18Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0804.3509","created_at":"2026-07-04T17:18:18Z"},{"alias_kind":"pith_short_12","alias_value":"GJSHKYZZAQO4","created_at":"2026-07-04T17:18:18Z"},{"alias_kind":"pith_short_16","alias_value":"GJSHKYZZAQO44EZ5","created_at":"2026-07-04T17:18:18Z"},{"alias_kind":"pith_short_8","alias_value":"GJSHKYZZ","created_at":"2026-07-04T17:18:18Z"}],"graph_snapshots":[{"event_id":"sha256:85c07eb247b3b5f715228dc72c4fffe5dffd0a9d10cb38a0e6d7c5e4109a117e","target":"graph","created_at":"2026-07-04T17:18:18Z","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/0804.3509/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"The differential cross-section for the process p(e,e'p)eta has been measured at Q2 ~ 5.7 and 7.0 (GeV/c)2 for centre-of-mass energies from threshold to 1.8 GeV, encompassing the S11(1535) resonance, which dominates the channel. This is the highest momentum transfer measurement of this exclusive process to date. The helicity-conserving transition amplitude A_1/2, for the production of the S11(1535) resonance, is extracted from the data. Within the limited Q2 now measured, this quantity appears to begin scaling as 1/Q3 - a predicted, but not definitive, signal of the dominance of perturbative QC","authors_text":"A. Ahmidouch, A. K. Opper, A. Uzzle, A. Villano, B. Moziak, B. Wojtsekhowski, C. Bertoncini, C. E. Keppel, C. Smith, C. Xu, D. Day, D. Dutta, D. Gaskell, D. G. Meekins, E. Hungerford, E. Schulte, E. Segbefia, F. R. Wesselmann, G. M. Huber, G. Niculescu, G. R. Smith, G. S. Adams, G. Warren, H. Breuer, H. C. Fenker, H. Mkrtchyan, H. Zhu, I. Niculescu, J. A. Dunne, J. Arrington, J. J. Kelly, J. Reinhold, J. Roche, K. Hafidi, K. Joo, L. Gan, L. Tang, L. Yuan, M. E. Christy, M. K. Jones, M. M. Dalton, M. Ungaro, M. Wang, N. Benmouna, N. El Khayari, N. Kalantarians, O. K. Baker, P. E. Bosted, P. E. Reimer, P. Markowitz, P. McKee, P. Stoler, R. Asaturyan, R. Ent, R. J. Holt, S. A. Wood, S. Danagoulian, S. E. Rock, S. H. Connell, S. Malace, S. Vidakovic, T. Angelescu, T. Dodario, T. Horn, T. Navasardyan, T. Ostapenko, V. Kubarovsky, V. Tadevosyan, V. Tvaskis, V. V. Frolov, W. F. Vulcan, W. Hinton, W. U. Boeglin, X. Jiang, X. Zheng, Y. Cui, Y. Li, Y. Liang","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ex","submitted_at":"2008-04-22T15:33:37Z","title":"Electroproduction of Eta Mesons in the S11(1535) Resonance Region at High Momentum Transfer"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0804.3509","kind":"arxiv","version":5},"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:a8a308171373810a2e88e65c00fab7081fc2945a2038a5e51216314e4be9d304","target":"record","created_at":"2026-07-04T17:18:18Z","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":"89aed172660791a80cdffdecfae469326d11514bb5566d80cdd04f7362214bcd","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ex","submitted_at":"2008-04-22T15:33:37Z","title_canon_sha256":"a1c24becb609b4fbd05de45ef8921727df80060f935359a15b7897ead6bf4334"},"schema_version":"1.0","source":{"id":"0804.3509","kind":"arxiv","version":5}},"canonical_sha256":"3264756339041dce133deaed90cff9b9545e4104fcc3aa04ab3d86c8e9e28a85","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"3264756339041dce133deaed90cff9b9545e4104fcc3aa04ab3d86c8e9e28a85","first_computed_at":"2026-07-04T17:18:18.537533Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-04T17:18:18.537533Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"Gc45LPrGdB5Vm3nnRt2kzrj7xs46LOUcrhr9PVa6siOF4EH1321v051AT7cC6E2KMbkF6Yy2Mh5bKMrs6ozhDg==","signature_status":"signed_v1","signed_at":"2026-07-04T17:18:18.537957Z","signed_message":"canonical_sha256_bytes"},"source_id":"0804.3509","source_kind":"arxiv","source_version":5}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:a8a308171373810a2e88e65c00fab7081fc2945a2038a5e51216314e4be9d304","sha256:85c07eb247b3b5f715228dc72c4fffe5dffd0a9d10cb38a0e6d7c5e4109a117e"],"state_sha256":"ab22836aadd680d91ecf8ec9503e67f0e60c170c43f196fea44729b5b6fd52b7"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"W61/yQZlpkylXvkxKjh4x9AExiXsqz5+QmHo5SgXGqEE/GLnrWDxPnl9oDdpMjMuPZXJPM6u0Rv6moHh5wloCg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-18T00:23:59.819927Z","bundle_sha256":"bd0cd9b6858d8720a881a2d0899f277fb9879f644622979d05c37f2a98c26eac"}}