{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2009:SRIHSERERV7ZH374ZJZE5GLEB6","short_pith_number":"pith:SRIHSERE","canonical_record":{"source":{"id":"0903.2733","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"nucl-ex","submitted_at":"2009-03-16T13:42:55Z","cross_cats_sorted":[],"title_canon_sha256":"38662a4d0f10ced87bbdc9c78185e93ca8e7526f4a8e009b1a1904b77ad20839","abstract_canon_sha256":"9eea8b97a1b199276006c769f78c9e7a8190d86f3a551122e15edbf26424b6aa"},"schema_version":"1.0"},"canonical_sha256":"94507912248d7f93effcca724e99640f997a5aa2042ec5459823ea4119fa23b8","source":{"kind":"arxiv","id":"0903.2733","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"0903.2733","created_at":"2026-07-04T15:43:49Z"},{"alias_kind":"arxiv_version","alias_value":"0903.2733v1","created_at":"2026-07-04T15:43:49Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0903.2733","created_at":"2026-07-04T15:43:49Z"},{"alias_kind":"pith_short_12","alias_value":"SRIHSERERV7Z","created_at":"2026-07-04T15:43:49Z"},{"alias_kind":"pith_short_16","alias_value":"SRIHSERERV7ZH374","created_at":"2026-07-04T15:43:49Z"},{"alias_kind":"pith_short_8","alias_value":"SRIHSERE","created_at":"2026-07-04T15:43:49Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2009:SRIHSERERV7ZH374ZJZE5GLEB6","target":"record","payload":{"canonical_record":{"source":{"id":"0903.2733","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"nucl-ex","submitted_at":"2009-03-16T13:42:55Z","cross_cats_sorted":[],"title_canon_sha256":"38662a4d0f10ced87bbdc9c78185e93ca8e7526f4a8e009b1a1904b77ad20839","abstract_canon_sha256":"9eea8b97a1b199276006c769f78c9e7a8190d86f3a551122e15edbf26424b6aa"},"schema_version":"1.0"},"canonical_sha256":"94507912248d7f93effcca724e99640f997a5aa2042ec5459823ea4119fa23b8","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-04T15:43:49.512812Z","signature_b64":"WrHIJKHsJ1y8JQFxwY7Qlrt7RVGEioue5AEQeeYz6+RDzhbOj+MPHkF1/vHTyx9GFQLDQh25msVDxnoZjQ2DCA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"94507912248d7f93effcca724e99640f997a5aa2042ec5459823ea4119fa23b8","last_reissued_at":"2026-07-04T15:43:49.512403Z","signature_status":"signed_v1","first_computed_at":"2026-07-04T15:43:49.512403Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"0903.2733","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":"2026-07-04T15:43:49Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"rscRk7YomajzUJDyDI4Gwm8vQR75tDhviNMbAdyZgDp/ehgdwZdbeIWFQAzTQV7lfjTVnNKdgXwxODrZstZ0Ag==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-11T02:57:46.809534Z"},"content_sha256":"b19d344364fc357888b7e21f796fc7870bb00ca0ea0beb82ef8b352f4358deb7","schema_version":"1.0","event_id":"sha256:b19d344364fc357888b7e21f796fc7870bb00ca0ea0beb82ef8b352f4358deb7"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2009:SRIHSERERV7ZH374ZJZE5GLEB6","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Measurement of Strange Quark Contributions to the Vector Form Factors of the Proton at Q**2=0.22 (GeV/c)**2","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"nucl-ex","authors_text":"B. Gl\\\"aser, C. Weinrich, D. Balaguer R\\'ios, D. v. Harrach, E. M. Kabu\\ss, E. Schilling, F. E. Maas, G. Stephan, H. Merkel, J. Arvieux, J. Diefenbach, J. H. Lee, J. van de Wiele, K. Aulenbacher, L. Capozza, M. A. El-Yakoubi, M. C. Mora Esp\\'i, M. Morlet, R. Kothe, R. Kunne, S. Baunack, S. Kowalski, S. Ong, S. Taylor, U. M\\\"uller, Y. Imai, Y. Prok","submitted_at":"2009-03-16T13:42:55Z","abstract_excerpt":"A new measurement of the parity violating asymmetry in elastic electron scattering on hydrogen at backward angles and at a four momentum transfer of Q^2=0.22 (GeV/c)^2 is reported here. The measured asymmetry is A_LR=(-17.23 +- 0.82_stat +-0.89_syst) ppm. The Standard Model prediction assuming no strangeness is A_0=(-15.87 +- 1.22) ppm. In combination with previous results from measurements at forward angles, it it possible to disentangle for the first time the strange electric and magnetic form factors at this momentum transfer, G_E^s(0.22)=0.050 +- 0.038 +- 0.019 and G_M^s(0.22)=-0.14 +- 0.1"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0903.2733","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/0903.2733/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":"2026-07-04T15:43:49Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"uczy6gH2TLVXJ19gxLVstIgezKziIm8eFpjkiTD+wPTTu/exX2UTx6XGqIKYMZjF3x64wB3/zwmmznu+dguGCQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-11T02:57:46.810076Z"},"content_sha256":"955e9b75d668b829bc031a5786b1e4862f1fe007444f5fea5e8646f5cd2fbd18","schema_version":"1.0","event_id":"sha256:955e9b75d668b829bc031a5786b1e4862f1fe007444f5fea5e8646f5cd2fbd18"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/SRIHSERERV7ZH374ZJZE5GLEB6/bundle.json","state_url":"https://pith.science/pith/SRIHSERERV7ZH374ZJZE5GLEB6/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/SRIHSERERV7ZH374ZJZE5GLEB6/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":"2026-08-11T02:57:46Z","links":{"resolver":"https://pith.science/pith/SRIHSERERV7ZH374ZJZE5GLEB6","bundle":"https://pith.science/pith/SRIHSERERV7ZH374ZJZE5GLEB6/bundle.json","state":"https://pith.science/pith/SRIHSERERV7ZH374ZJZE5GLEB6/state.json","well_known_bundle":"https://pith.science/.well-known/pith/SRIHSERERV7ZH374ZJZE5GLEB6/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2009:SRIHSERERV7ZH374ZJZE5GLEB6","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":"9eea8b97a1b199276006c769f78c9e7a8190d86f3a551122e15edbf26424b6aa","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"nucl-ex","submitted_at":"2009-03-16T13:42:55Z","title_canon_sha256":"38662a4d0f10ced87bbdc9c78185e93ca8e7526f4a8e009b1a1904b77ad20839"},"schema_version":"1.0","source":{"id":"0903.2733","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"0903.2733","created_at":"2026-07-04T15:43:49Z"},{"alias_kind":"arxiv_version","alias_value":"0903.2733v1","created_at":"2026-07-04T15:43:49Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0903.2733","created_at":"2026-07-04T15:43:49Z"},{"alias_kind":"pith_short_12","alias_value":"SRIHSERERV7Z","created_at":"2026-07-04T15:43:49Z"},{"alias_kind":"pith_short_16","alias_value":"SRIHSERERV7ZH374","created_at":"2026-07-04T15:43:49Z"},{"alias_kind":"pith_short_8","alias_value":"SRIHSERE","created_at":"2026-07-04T15:43:49Z"}],"graph_snapshots":[{"event_id":"sha256:955e9b75d668b829bc031a5786b1e4862f1fe007444f5fea5e8646f5cd2fbd18","target":"graph","created_at":"2026-07-04T15:43:49Z","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/0903.2733/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"A new measurement of the parity violating asymmetry in elastic electron scattering on hydrogen at backward angles and at a four momentum transfer of Q^2=0.22 (GeV/c)^2 is reported here. The measured asymmetry is A_LR=(-17.23 +- 0.82_stat +-0.89_syst) ppm. The Standard Model prediction assuming no strangeness is A_0=(-15.87 +- 1.22) ppm. In combination with previous results from measurements at forward angles, it it possible to disentangle for the first time the strange electric and magnetic form factors at this momentum transfer, G_E^s(0.22)=0.050 +- 0.038 +- 0.019 and G_M^s(0.22)=-0.14 +- 0.1","authors_text":"B. Gl\\\"aser, C. Weinrich, D. Balaguer R\\'ios, D. v. Harrach, E. M. Kabu\\ss, E. Schilling, F. E. Maas, G. Stephan, H. Merkel, J. Arvieux, J. Diefenbach, J. H. Lee, J. van de Wiele, K. Aulenbacher, L. Capozza, M. A. El-Yakoubi, M. C. Mora Esp\\'i, M. Morlet, R. Kothe, R. Kunne, S. Baunack, S. Kowalski, S. Ong, S. Taylor, U. M\\\"uller, Y. Imai, Y. Prok","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"nucl-ex","submitted_at":"2009-03-16T13:42:55Z","title":"Measurement of Strange Quark Contributions to the Vector Form Factors of the Proton at Q**2=0.22 (GeV/c)**2"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0903.2733","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:b19d344364fc357888b7e21f796fc7870bb00ca0ea0beb82ef8b352f4358deb7","target":"record","created_at":"2026-07-04T15:43:49Z","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":"9eea8b97a1b199276006c769f78c9e7a8190d86f3a551122e15edbf26424b6aa","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"nucl-ex","submitted_at":"2009-03-16T13:42:55Z","title_canon_sha256":"38662a4d0f10ced87bbdc9c78185e93ca8e7526f4a8e009b1a1904b77ad20839"},"schema_version":"1.0","source":{"id":"0903.2733","kind":"arxiv","version":1}},"canonical_sha256":"94507912248d7f93effcca724e99640f997a5aa2042ec5459823ea4119fa23b8","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"94507912248d7f93effcca724e99640f997a5aa2042ec5459823ea4119fa23b8","first_computed_at":"2026-07-04T15:43:49.512403Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-04T15:43:49.512403Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"WrHIJKHsJ1y8JQFxwY7Qlrt7RVGEioue5AEQeeYz6+RDzhbOj+MPHkF1/vHTyx9GFQLDQh25msVDxnoZjQ2DCA==","signature_status":"signed_v1","signed_at":"2026-07-04T15:43:49.512812Z","signed_message":"canonical_sha256_bytes"},"source_id":"0903.2733","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:b19d344364fc357888b7e21f796fc7870bb00ca0ea0beb82ef8b352f4358deb7","sha256:955e9b75d668b829bc031a5786b1e4862f1fe007444f5fea5e8646f5cd2fbd18"],"state_sha256":"68bb46bd1b506f1f32b8caf07e160693a8944716b421b11c4b292657bc4fcc5b"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"PBHTOwKP9kGzO1y862D5BoH00b1y96A5HYKdwbBZVJfUYJCCLCV52EvBKM4pfyKBYvKau9vM0lD2LLtN6Ja+CQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-11T02:57:46.814486Z","bundle_sha256":"bc1f63afb62ef8ed7703ab4e827821958994c19fa37d11c030a78580c14d1469"}}