{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:1998:KWPHP4CYECBFEB5NWQ6E7DGGZ4","short_pith_number":"pith:KWPHP4CY","canonical_record":{"source":{"id":"hep-ph/9812377","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"hep-ph","submitted_at":"1998-12-15T22:13:31Z","cross_cats_sorted":[],"title_canon_sha256":"646cc97bdfdac3260e1dfb22e6b32af8f0a8f579704ed0c47e9033ee113e4db5","abstract_canon_sha256":"d39df2d49643ba0995d4794470b1dd8daf7ccd94b111f08698a29c9429500750"},"schema_version":"1.0"},"canonical_sha256":"559e77f05820825207adb43c4f8cc6cf128db8578bfa9d763b035f54e23056fb","source":{"kind":"arxiv","id":"hep-ph/9812377","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"hep-ph/9812377","created_at":"2026-05-18T01:08:00Z"},{"alias_kind":"arxiv_version","alias_value":"hep-ph/9812377v1","created_at":"2026-05-18T01:08:00Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.hep-ph/9812377","created_at":"2026-05-18T01:08:00Z"},{"alias_kind":"pith_short_12","alias_value":"KWPHP4CYECBF","created_at":"2026-05-18T12:25:49Z"},{"alias_kind":"pith_short_16","alias_value":"KWPHP4CYECBFEB5N","created_at":"2026-05-18T12:25:49Z"},{"alias_kind":"pith_short_8","alias_value":"KWPHP4CY","created_at":"2026-05-18T12:25:49Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:1998:KWPHP4CYECBFEB5NWQ6E7DGGZ4","target":"record","payload":{"canonical_record":{"source":{"id":"hep-ph/9812377","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"hep-ph","submitted_at":"1998-12-15T22:13:31Z","cross_cats_sorted":[],"title_canon_sha256":"646cc97bdfdac3260e1dfb22e6b32af8f0a8f579704ed0c47e9033ee113e4db5","abstract_canon_sha256":"d39df2d49643ba0995d4794470b1dd8daf7ccd94b111f08698a29c9429500750"},"schema_version":"1.0"},"canonical_sha256":"559e77f05820825207adb43c4f8cc6cf128db8578bfa9d763b035f54e23056fb","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:08:00.802787Z","signature_b64":"GoQELjIwtY+v5Q49oaMF7i4fWOTkHq3sK9H2AJhXH2ZmHKWJmwR0XpJ7Y0W5CBMDzixSwAWC3t3TObh08B0DCQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"559e77f05820825207adb43c4f8cc6cf128db8578bfa9d763b035f54e23056fb","last_reissued_at":"2026-05-18T01:08:00.802382Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:08:00.802382Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"hep-ph/9812377","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":"2026-05-18T01:08:00Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"ry9sekA2eGQK5SuFQqAAvo2wV+RxmwS8FE0ns1IBXmdHKux+f9zLgkFKNftxqy6ixFj93d65FQsnyWTWE5FuBA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-22T12:32:34.325402Z"},"content_sha256":"cfc9c557bebf9283854fb18dcb599d649595e613555716edbc670b278f54dba2","schema_version":"1.0","event_id":"sha256:cfc9c557bebf9283854fb18dcb599d649595e613555716edbc670b278f54dba2"},{"event_type":"graph_snapshot","subject_pith_number":"pith:1998:KWPHP4CYECBFEB5NWQ6E7DGGZ4","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Constraints on Topcolor Assisted Technicolor Models from Vertex Corrections","license":"","headline":"","cross_cats":[],"primary_cat":"hep-ph","authors_text":"Tatsu Takeuchi (Virginia Tech), Will Loinaz","submitted_at":"1998-12-15T22:13:31Z","abstract_excerpt":"We use the LEP/SLD data to place constraints on Topcolor Assisted Technicolor Models. We find that due to a large negative shift in R_b induced by charged top-pion exchange, it is difficult to make the models compatible with experiment."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"hep-ph/9812377","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":"2026-05-18T01:08:00Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"eoEUYaUaEU5ojZDhEnu6+6cZ/TgGJ6uoAYlGqkSH4IHZUWEmdfMG2kL3lnY7QuDnJWe6QjACyeuCF0s8wVACCA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-22T12:32:34.325850Z"},"content_sha256":"bb12ce851d6097fbb78acb8f9b1e5ce5d269d59e37d890a80c8d2c4a141e2d9d","schema_version":"1.0","event_id":"sha256:bb12ce851d6097fbb78acb8f9b1e5ce5d269d59e37d890a80c8d2c4a141e2d9d"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/KWPHP4CYECBFEB5NWQ6E7DGGZ4/bundle.json","state_url":"https://pith.science/pith/KWPHP4CYECBFEB5NWQ6E7DGGZ4/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/KWPHP4CYECBFEB5NWQ6E7DGGZ4/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":"2026-05-22T12:32:34Z","links":{"resolver":"https://pith.science/pith/KWPHP4CYECBFEB5NWQ6E7DGGZ4","bundle":"https://pith.science/pith/KWPHP4CYECBFEB5NWQ6E7DGGZ4/bundle.json","state":"https://pith.science/pith/KWPHP4CYECBFEB5NWQ6E7DGGZ4/state.json","well_known_bundle":"https://pith.science/.well-known/pith/KWPHP4CYECBFEB5NWQ6E7DGGZ4/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:1998:KWPHP4CYECBFEB5NWQ6E7DGGZ4","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":"d39df2d49643ba0995d4794470b1dd8daf7ccd94b111f08698a29c9429500750","cross_cats_sorted":[],"license":"","primary_cat":"hep-ph","submitted_at":"1998-12-15T22:13:31Z","title_canon_sha256":"646cc97bdfdac3260e1dfb22e6b32af8f0a8f579704ed0c47e9033ee113e4db5"},"schema_version":"1.0","source":{"id":"hep-ph/9812377","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"hep-ph/9812377","created_at":"2026-05-18T01:08:00Z"},{"alias_kind":"arxiv_version","alias_value":"hep-ph/9812377v1","created_at":"2026-05-18T01:08:00Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.hep-ph/9812377","created_at":"2026-05-18T01:08:00Z"},{"alias_kind":"pith_short_12","alias_value":"KWPHP4CYECBF","created_at":"2026-05-18T12:25:49Z"},{"alias_kind":"pith_short_16","alias_value":"KWPHP4CYECBFEB5N","created_at":"2026-05-18T12:25:49Z"},{"alias_kind":"pith_short_8","alias_value":"KWPHP4CY","created_at":"2026-05-18T12:25:49Z"}],"graph_snapshots":[{"event_id":"sha256:bb12ce851d6097fbb78acb8f9b1e5ce5d269d59e37d890a80c8d2c4a141e2d9d","target":"graph","created_at":"2026-05-18T01:08:00Z","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 use the LEP/SLD data to place constraints on Topcolor Assisted Technicolor Models. We find that due to a large negative shift in R_b induced by charged top-pion exchange, it is difficult to make the models compatible with experiment.","authors_text":"Tatsu Takeuchi (Virginia Tech), Will Loinaz","cross_cats":[],"headline":"","license":"","primary_cat":"hep-ph","submitted_at":"1998-12-15T22:13:31Z","title":"Constraints on Topcolor Assisted Technicolor Models from Vertex Corrections"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"hep-ph/9812377","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:cfc9c557bebf9283854fb18dcb599d649595e613555716edbc670b278f54dba2","target":"record","created_at":"2026-05-18T01:08:00Z","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":"d39df2d49643ba0995d4794470b1dd8daf7ccd94b111f08698a29c9429500750","cross_cats_sorted":[],"license":"","primary_cat":"hep-ph","submitted_at":"1998-12-15T22:13:31Z","title_canon_sha256":"646cc97bdfdac3260e1dfb22e6b32af8f0a8f579704ed0c47e9033ee113e4db5"},"schema_version":"1.0","source":{"id":"hep-ph/9812377","kind":"arxiv","version":1}},"canonical_sha256":"559e77f05820825207adb43c4f8cc6cf128db8578bfa9d763b035f54e23056fb","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"559e77f05820825207adb43c4f8cc6cf128db8578bfa9d763b035f54e23056fb","first_computed_at":"2026-05-18T01:08:00.802382Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:08:00.802382Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"GoQELjIwtY+v5Q49oaMF7i4fWOTkHq3sK9H2AJhXH2ZmHKWJmwR0XpJ7Y0W5CBMDzixSwAWC3t3TObh08B0DCQ==","signature_status":"signed_v1","signed_at":"2026-05-18T01:08:00.802787Z","signed_message":"canonical_sha256_bytes"},"source_id":"hep-ph/9812377","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:cfc9c557bebf9283854fb18dcb599d649595e613555716edbc670b278f54dba2","sha256:bb12ce851d6097fbb78acb8f9b1e5ce5d269d59e37d890a80c8d2c4a141e2d9d"],"state_sha256":"54bb6100bf18087b464db36c539acd80c376516d42f776b4a5657be520fc3f61"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"ME+WKYpmLn133jZ7LSjk2kQgs1jCwEgPVLhBG20OIaCc3Bz6m7YxhgeVBdjeD7SQpbtnW1rLuKrXrf0x+l4xAw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-22T12:32:34.330074Z","bundle_sha256":"a11bcd81f56fafc69936a320daa4117e497ad04ea46fae1f4e50989cb3f700b9"}}