{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2000:C42XBAD7B5P4WR2DRI4HV6FAI5","short_pith_number":"pith:C42XBAD7","canonical_record":{"source":{"id":"hep-ph/0012166","kind":"arxiv","version":2},"metadata":{"license":"","primary_cat":"hep-ph","submitted_at":"2000-12-14T07:02:38Z","cross_cats_sorted":[],"title_canon_sha256":"214ed37cb972bbf0518a67a67baa057e241152740d530076691ec953cafd7f94","abstract_canon_sha256":"bbcb8f009ac74b03c2e1b9fc380070acd3526f6140df4501ca0288604b5da99b"},"schema_version":"1.0"},"canonical_sha256":"173570807f0f5fcb47438a387af8a04770349f088679209e5b33219e17ec0f1e","source":{"kind":"arxiv","id":"hep-ph/0012166","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"hep-ph/0012166","created_at":"2026-05-18T04:26:11Z"},{"alias_kind":"arxiv_version","alias_value":"hep-ph/0012166v2","created_at":"2026-05-18T04:26:11Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.hep-ph/0012166","created_at":"2026-05-18T04:26:11Z"},{"alias_kind":"pith_short_12","alias_value":"C42XBAD7B5P4","created_at":"2026-05-18T12:25:49Z"},{"alias_kind":"pith_short_16","alias_value":"C42XBAD7B5P4WR2D","created_at":"2026-05-18T12:25:49Z"},{"alias_kind":"pith_short_8","alias_value":"C42XBAD7","created_at":"2026-05-18T12:25:49Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2000:C42XBAD7B5P4WR2DRI4HV6FAI5","target":"record","payload":{"canonical_record":{"source":{"id":"hep-ph/0012166","kind":"arxiv","version":2},"metadata":{"license":"","primary_cat":"hep-ph","submitted_at":"2000-12-14T07:02:38Z","cross_cats_sorted":[],"title_canon_sha256":"214ed37cb972bbf0518a67a67baa057e241152740d530076691ec953cafd7f94","abstract_canon_sha256":"bbcb8f009ac74b03c2e1b9fc380070acd3526f6140df4501ca0288604b5da99b"},"schema_version":"1.0"},"canonical_sha256":"173570807f0f5fcb47438a387af8a04770349f088679209e5b33219e17ec0f1e","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T04:26:11.647725Z","signature_b64":"+l/giZZJu6HO8WAwLpbcgsyXd1uuEqUpY96gaiBSgHEXs5dclrgDnDG0Oxz6r3nuJdzj55WDsemXg8vflcBqDw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"173570807f0f5fcb47438a387af8a04770349f088679209e5b33219e17ec0f1e","last_reissued_at":"2026-05-18T04:26:11.646936Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T04:26:11.646936Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"hep-ph/0012166","source_version":2,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T04:26:11Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"wpFhcVv7Fn30omfy6GXYKWcTvMnDXcwCXWhPPpQLLhiNzrxl37SLdnmk0viBBRWHJgHTgOZ3Jt3eibIppOT3BQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-01T02:03:55.367180Z"},"content_sha256":"07ba16d61f981da17281c2ed45b3cd6037c9bbc4d1ea5d50fe0128718eb03772","schema_version":"1.0","event_id":"sha256:07ba16d61f981da17281c2ed45b3cd6037c9bbc4d1ea5d50fe0128718eb03772"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2000:C42XBAD7B5P4WR2DRI4HV6FAI5","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Single scalar top production with polarized beams in ep collisions at HERA","license":"","headline":"","cross_cats":[],"primary_cat":"hep-ph","authors_text":"Shoichi Kitamura, Tadashi Kon, Tetsuro Kobayashi","submitted_at":"2000-12-14T07:02:38Z","abstract_excerpt":"From the point of view of the R-parity breaking supersymmetric model, we propose a scalar top (stop) search with longitudinally polarized electron (e-) and positron(e+) beams which will soon be available at the upgraded HERA. Fully polarized e- or e+ beams could produce the stop two times as much as unpolarized beams, while they increase background events due to the process of the standard model by about 30% in comparison with unpolarized ones. We show that right-handed e+ beams at HERA is efficient to produce the stop in the model. With 1 fb**(-1) of integrated luminosity we estimate reach in"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"hep-ph/0012166","kind":"arxiv","version":2},"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":"2026-05-18T04:26:11Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"rOmU7L5gabMdWyusEpIbVmXck/qOkXXW9fvsx/Cusijmy52t50qLvi8PxHS1mY1Uc3qjgvhvkAG6IGZpFdZzAQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-01T02:03:55.367828Z"},"content_sha256":"24030dacfe12b9f8e9b6c7f61248eb91b7fa53483816bd3f524e2a313152e104","schema_version":"1.0","event_id":"sha256:24030dacfe12b9f8e9b6c7f61248eb91b7fa53483816bd3f524e2a313152e104"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/C42XBAD7B5P4WR2DRI4HV6FAI5/bundle.json","state_url":"https://pith.science/pith/C42XBAD7B5P4WR2DRI4HV6FAI5/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/C42XBAD7B5P4WR2DRI4HV6FAI5/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":"2026-06-01T02:03:55Z","links":{"resolver":"https://pith.science/pith/C42XBAD7B5P4WR2DRI4HV6FAI5","bundle":"https://pith.science/pith/C42XBAD7B5P4WR2DRI4HV6FAI5/bundle.json","state":"https://pith.science/pith/C42XBAD7B5P4WR2DRI4HV6FAI5/state.json","well_known_bundle":"https://pith.science/.well-known/pith/C42XBAD7B5P4WR2DRI4HV6FAI5/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2000:C42XBAD7B5P4WR2DRI4HV6FAI5","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":"bbcb8f009ac74b03c2e1b9fc380070acd3526f6140df4501ca0288604b5da99b","cross_cats_sorted":[],"license":"","primary_cat":"hep-ph","submitted_at":"2000-12-14T07:02:38Z","title_canon_sha256":"214ed37cb972bbf0518a67a67baa057e241152740d530076691ec953cafd7f94"},"schema_version":"1.0","source":{"id":"hep-ph/0012166","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"hep-ph/0012166","created_at":"2026-05-18T04:26:11Z"},{"alias_kind":"arxiv_version","alias_value":"hep-ph/0012166v2","created_at":"2026-05-18T04:26:11Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.hep-ph/0012166","created_at":"2026-05-18T04:26:11Z"},{"alias_kind":"pith_short_12","alias_value":"C42XBAD7B5P4","created_at":"2026-05-18T12:25:49Z"},{"alias_kind":"pith_short_16","alias_value":"C42XBAD7B5P4WR2D","created_at":"2026-05-18T12:25:49Z"},{"alias_kind":"pith_short_8","alias_value":"C42XBAD7","created_at":"2026-05-18T12:25:49Z"}],"graph_snapshots":[{"event_id":"sha256:24030dacfe12b9f8e9b6c7f61248eb91b7fa53483816bd3f524e2a313152e104","target":"graph","created_at":"2026-05-18T04:26:11Z","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":"From the point of view of the R-parity breaking supersymmetric model, we propose a scalar top (stop) search with longitudinally polarized electron (e-) and positron(e+) beams which will soon be available at the upgraded HERA. Fully polarized e- or e+ beams could produce the stop two times as much as unpolarized beams, while they increase background events due to the process of the standard model by about 30% in comparison with unpolarized ones. We show that right-handed e+ beams at HERA is efficient to produce the stop in the model. With 1 fb**(-1) of integrated luminosity we estimate reach in","authors_text":"Shoichi Kitamura, Tadashi Kon, Tetsuro Kobayashi","cross_cats":[],"headline":"","license":"","primary_cat":"hep-ph","submitted_at":"2000-12-14T07:02:38Z","title":"Single scalar top production with polarized beams in ep collisions at HERA"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"hep-ph/0012166","kind":"arxiv","version":2},"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":"sha256:07ba16d61f981da17281c2ed45b3cd6037c9bbc4d1ea5d50fe0128718eb03772","target":"record","created_at":"2026-05-18T04:26:11Z","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":"bbcb8f009ac74b03c2e1b9fc380070acd3526f6140df4501ca0288604b5da99b","cross_cats_sorted":[],"license":"","primary_cat":"hep-ph","submitted_at":"2000-12-14T07:02:38Z","title_canon_sha256":"214ed37cb972bbf0518a67a67baa057e241152740d530076691ec953cafd7f94"},"schema_version":"1.0","source":{"id":"hep-ph/0012166","kind":"arxiv","version":2}},"canonical_sha256":"173570807f0f5fcb47438a387af8a04770349f088679209e5b33219e17ec0f1e","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"173570807f0f5fcb47438a387af8a04770349f088679209e5b33219e17ec0f1e","first_computed_at":"2026-05-18T04:26:11.646936Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T04:26:11.646936Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"+l/giZZJu6HO8WAwLpbcgsyXd1uuEqUpY96gaiBSgHEXs5dclrgDnDG0Oxz6r3nuJdzj55WDsemXg8vflcBqDw==","signature_status":"signed_v1","signed_at":"2026-05-18T04:26:11.647725Z","signed_message":"canonical_sha256_bytes"},"source_id":"hep-ph/0012166","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:07ba16d61f981da17281c2ed45b3cd6037c9bbc4d1ea5d50fe0128718eb03772","sha256:24030dacfe12b9f8e9b6c7f61248eb91b7fa53483816bd3f524e2a313152e104"],"state_sha256":"0dd5252b5d49b46660c864dd5a7eda23501f6a17b0b161a083b294748fd6d3e1"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"3PiQLqWjZTis4JtAzDyp4arJbfBRhLRSGtM/+w/3IIExP7BkXLYHE+q1zAdFuaDqU/P8Iha1Km6tl7J4QMHfDg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-01T02:03:55.371815Z","bundle_sha256":"3f52209ee9115afc2c449f70511f52b3c68849dd037042e395e75c62c2f22266"}}