{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:1995:G423G25OJCUXSGYRO7B774ZP7X","short_pith_number":"pith:G423G25O","canonical_record":{"source":{"id":"hep-ph/9501258","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"hep-ph","submitted_at":"1995-01-10T16:42:18Z","cross_cats_sorted":[],"title_canon_sha256":"b57cc449a6aa3052972b9c2950f58a0f35bc649205e8223fbd90950ea5e11b89","abstract_canon_sha256":"d81037e6b735961a2df110630c88b9fe0412a1f39730e7d2e9a869d378bc5ef9"},"schema_version":"1.0"},"canonical_sha256":"3735b36bae48a9791b1177c3fff32ffdc8b0dc5ad15329991680ee51a48bcc45","source":{"kind":"arxiv","id":"hep-ph/9501258","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"hep-ph/9501258","created_at":"2026-05-18T01:06:35Z"},{"alias_kind":"arxiv_version","alias_value":"hep-ph/9501258v1","created_at":"2026-05-18T01:06:35Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.hep-ph/9501258","created_at":"2026-05-18T01:06:35Z"},{"alias_kind":"pith_short_12","alias_value":"G423G25OJCUX","created_at":"2026-05-18T12:25:47Z"},{"alias_kind":"pith_short_16","alias_value":"G423G25OJCUXSGYR","created_at":"2026-05-18T12:25:47Z"},{"alias_kind":"pith_short_8","alias_value":"G423G25O","created_at":"2026-05-18T12:25:47Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:1995:G423G25OJCUXSGYRO7B774ZP7X","target":"record","payload":{"canonical_record":{"source":{"id":"hep-ph/9501258","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"hep-ph","submitted_at":"1995-01-10T16:42:18Z","cross_cats_sorted":[],"title_canon_sha256":"b57cc449a6aa3052972b9c2950f58a0f35bc649205e8223fbd90950ea5e11b89","abstract_canon_sha256":"d81037e6b735961a2df110630c88b9fe0412a1f39730e7d2e9a869d378bc5ef9"},"schema_version":"1.0"},"canonical_sha256":"3735b36bae48a9791b1177c3fff32ffdc8b0dc5ad15329991680ee51a48bcc45","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:06:35.061833Z","signature_b64":"cg1b5wb+sQNLCElz9+8y1kWGuuYYLczMuCrau0UYBQVhqrolCu8bH7jra/V8JNQUUimqWV187jfQs67MEm9nBQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"3735b36bae48a9791b1177c3fff32ffdc8b0dc5ad15329991680ee51a48bcc45","last_reissued_at":"2026-05-18T01:06:35.061258Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:06:35.061258Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"hep-ph/9501258","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":"2026-05-18T01:06:35Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"u3YKBuvtDKXju8jMvRNnP9JwonkOWMf6/o3sBCRXT8e94Wz/RJQTpp7+U8QEOTxWz4jPPIDpqssweNeecl0TAQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-04T20:19:39.217307Z"},"content_sha256":"6da1d81827e061aaaf53cdfe69bf48b3121b82be4022e2bee5b205c6e568accd","schema_version":"1.0","event_id":"sha256:6da1d81827e061aaaf53cdfe69bf48b3121b82be4022e2bee5b205c6e568accd"},{"event_type":"graph_snapshot","subject_pith_number":"pith:1995:G423G25OJCUXSGYRO7B774ZP7X","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"$R_b$ in supergravity models","license":"","headline":"","cross_cats":[],"primary_cat":"hep-ph","authors_text":"D. Nanopoulos, J. Lopez, X. Wang","submitted_at":"1995-01-10T16:42:18Z","abstract_excerpt":"We compute the supersymmetric contribution to\n $R_{b}\\equiv \\Gamma (Z\\to b{\\bar b})/\\Gamma (Z\\to {\\rm hadrons})$ in a variety of supergravity models. We find $R^{\\rm susy}_b\\lsim0.0004$, which does not shift significantly the Standard Model prediction\n ($R^{\\rm SM}_b=0.2162$ for $m_t=160\\GeV$). An improvement in experimental precision by a factor of four would be required to be sensitive to such an effect."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"hep-ph/9501258","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":"2026-05-18T01:06:35Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"CsBeZi92flDFTWRfDaUlxFbevThDe15FGWDZtgEoAshIbqmikdacHXuFSEXXTwOugVIQF7NJCVbnWKfGHe/sAQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-04T20:19:39.217667Z"},"content_sha256":"6779f0c3c0387692add615a97e11b03e94adf2017084a6b48f0e0ee18c691604","schema_version":"1.0","event_id":"sha256:6779f0c3c0387692add615a97e11b03e94adf2017084a6b48f0e0ee18c691604"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/G423G25OJCUXSGYRO7B774ZP7X/bundle.json","state_url":"https://pith.science/pith/G423G25OJCUXSGYRO7B774ZP7X/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/G423G25OJCUXSGYRO7B774ZP7X/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":"2026-06-04T20:19:39Z","links":{"resolver":"https://pith.science/pith/G423G25OJCUXSGYRO7B774ZP7X","bundle":"https://pith.science/pith/G423G25OJCUXSGYRO7B774ZP7X/bundle.json","state":"https://pith.science/pith/G423G25OJCUXSGYRO7B774ZP7X/state.json","well_known_bundle":"https://pith.science/.well-known/pith/G423G25OJCUXSGYRO7B774ZP7X/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:1995:G423G25OJCUXSGYRO7B774ZP7X","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":"d81037e6b735961a2df110630c88b9fe0412a1f39730e7d2e9a869d378bc5ef9","cross_cats_sorted":[],"license":"","primary_cat":"hep-ph","submitted_at":"1995-01-10T16:42:18Z","title_canon_sha256":"b57cc449a6aa3052972b9c2950f58a0f35bc649205e8223fbd90950ea5e11b89"},"schema_version":"1.0","source":{"id":"hep-ph/9501258","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"hep-ph/9501258","created_at":"2026-05-18T01:06:35Z"},{"alias_kind":"arxiv_version","alias_value":"hep-ph/9501258v1","created_at":"2026-05-18T01:06:35Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.hep-ph/9501258","created_at":"2026-05-18T01:06:35Z"},{"alias_kind":"pith_short_12","alias_value":"G423G25OJCUX","created_at":"2026-05-18T12:25:47Z"},{"alias_kind":"pith_short_16","alias_value":"G423G25OJCUXSGYR","created_at":"2026-05-18T12:25:47Z"},{"alias_kind":"pith_short_8","alias_value":"G423G25O","created_at":"2026-05-18T12:25:47Z"}],"graph_snapshots":[{"event_id":"sha256:6779f0c3c0387692add615a97e11b03e94adf2017084a6b48f0e0ee18c691604","target":"graph","created_at":"2026-05-18T01:06:35Z","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 compute the supersymmetric contribution to\n $R_{b}\\equiv \\Gamma (Z\\to b{\\bar b})/\\Gamma (Z\\to {\\rm hadrons})$ in a variety of supergravity models. We find $R^{\\rm susy}_b\\lsim0.0004$, which does not shift significantly the Standard Model prediction\n ($R^{\\rm SM}_b=0.2162$ for $m_t=160\\GeV$). An improvement in experimental precision by a factor of four would be required to be sensitive to such an effect.","authors_text":"D. Nanopoulos, J. Lopez, X. Wang","cross_cats":[],"headline":"","license":"","primary_cat":"hep-ph","submitted_at":"1995-01-10T16:42:18Z","title":"$R_b$ in supergravity models"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"hep-ph/9501258","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":"sha256:6da1d81827e061aaaf53cdfe69bf48b3121b82be4022e2bee5b205c6e568accd","target":"record","created_at":"2026-05-18T01:06:35Z","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":"d81037e6b735961a2df110630c88b9fe0412a1f39730e7d2e9a869d378bc5ef9","cross_cats_sorted":[],"license":"","primary_cat":"hep-ph","submitted_at":"1995-01-10T16:42:18Z","title_canon_sha256":"b57cc449a6aa3052972b9c2950f58a0f35bc649205e8223fbd90950ea5e11b89"},"schema_version":"1.0","source":{"id":"hep-ph/9501258","kind":"arxiv","version":1}},"canonical_sha256":"3735b36bae48a9791b1177c3fff32ffdc8b0dc5ad15329991680ee51a48bcc45","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"3735b36bae48a9791b1177c3fff32ffdc8b0dc5ad15329991680ee51a48bcc45","first_computed_at":"2026-05-18T01:06:35.061258Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:06:35.061258Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"cg1b5wb+sQNLCElz9+8y1kWGuuYYLczMuCrau0UYBQVhqrolCu8bH7jra/V8JNQUUimqWV187jfQs67MEm9nBQ==","signature_status":"signed_v1","signed_at":"2026-05-18T01:06:35.061833Z","signed_message":"canonical_sha256_bytes"},"source_id":"hep-ph/9501258","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:6da1d81827e061aaaf53cdfe69bf48b3121b82be4022e2bee5b205c6e568accd","sha256:6779f0c3c0387692add615a97e11b03e94adf2017084a6b48f0e0ee18c691604"],"state_sha256":"7f5cc276403ba11b2022db10dd7a166bd2bc002573ac9f8fc39e03a79a3cf5ba"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"9Z0LG7d5P3wDu0HCjbS5hYuOkL7znqIy3ahS5TYVT1ooWtMKdoEmjD7ZYdfZ7KE6LG7le12i/jJj9bXlKUA1AA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-04T20:19:39.219603Z","bundle_sha256":"1efbe39c3bad0d4356925a56f844381e263240416fe92e7c22f9c88850acbd27"}}