{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2000:GQGUDBE54ET6UNWGK4RJUIVJLC","short_pith_number":"pith:GQGUDBE5","canonical_record":{"source":{"id":"hep-ph/0011349","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"hep-ph","submitted_at":"2000-11-28T15:27:26Z","cross_cats_sorted":["hep-ex"],"title_canon_sha256":"ed37411ae84b9edc9f47df2f3f9e4c573dbcad1b06324bcda2b694f949d0d940","abstract_canon_sha256":"69658e13263027d0596116a984d47eb0a9b638066057bd7b17ce3d54f5915fad"},"schema_version":"1.0"},"canonical_sha256":"340d41849de127ea36c657229a22a958b43315417c93a793481bd487d67e3dd8","source":{"kind":"arxiv","id":"hep-ph/0011349","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"hep-ph/0011349","created_at":"2026-07-04T14:27:44Z"},{"alias_kind":"arxiv_version","alias_value":"hep-ph/0011349v1","created_at":"2026-07-04T14:27:44Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.hep-ph/0011349","created_at":"2026-07-04T14:27:44Z"},{"alias_kind":"pith_short_12","alias_value":"GQGUDBE54ET6","created_at":"2026-07-04T14:27:44Z"},{"alias_kind":"pith_short_16","alias_value":"GQGUDBE54ET6UNWG","created_at":"2026-07-04T14:27:44Z"},{"alias_kind":"pith_short_8","alias_value":"GQGUDBE5","created_at":"2026-07-04T14:27:44Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2000:GQGUDBE54ET6UNWGK4RJUIVJLC","target":"record","payload":{"canonical_record":{"source":{"id":"hep-ph/0011349","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"hep-ph","submitted_at":"2000-11-28T15:27:26Z","cross_cats_sorted":["hep-ex"],"title_canon_sha256":"ed37411ae84b9edc9f47df2f3f9e4c573dbcad1b06324bcda2b694f949d0d940","abstract_canon_sha256":"69658e13263027d0596116a984d47eb0a9b638066057bd7b17ce3d54f5915fad"},"schema_version":"1.0"},"canonical_sha256":"340d41849de127ea36c657229a22a958b43315417c93a793481bd487d67e3dd8","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-04T14:27:44.544984Z","signature_b64":"9x1pX/0qRPLpxPHMO9kUN+PKe+NADvfEGSzK+fXLXxVVcb8XrMDbQPbuDM2D+6CcwMjBD3xGxchg5bPd/ioLCw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"340d41849de127ea36c657229a22a958b43315417c93a793481bd487d67e3dd8","last_reissued_at":"2026-07-04T14:27:44.544643Z","signature_status":"signed_v1","first_computed_at":"2026-07-04T14:27:44.544643Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"hep-ph/0011349","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":"2026-07-04T14:27:44Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"1Js/HP/xxWLcuTWmHbbaSH/6n9Wsul9QYPTMC0iusqBz1h0IZQH/EEhKW3eVuH0cGkZEZjx9oUFD1pC3OsRlDQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-04T22:19:58.075753Z"},"content_sha256":"4038ae89d108f790e769078823c8a72c67987c70d0e8161227553e1b3280a1e9","schema_version":"1.0","event_id":"sha256:4038ae89d108f790e769078823c8a72c67987c70d0e8161227553e1b3280a1e9"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2000:GQGUDBE54ET6UNWGK4RJUIVJLC","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Observing Spin Correlations in Single Top Production and Decay","license":"","headline":"","cross_cats":["hep-ex"],"primary_cat":"hep-ph","authors_text":"Gregory Mahlon (McGill University)","submitted_at":"2000-11-28T15:27:26Z","abstract_excerpt":"The weak decay of a polarized top quark has a rich structure of angular correlations among its decay products. We describe some of the noteworthy features of such decays. We then examine the three modes of single top production, with an emphasis on the status of calculations of the degree and direction of polarization at Run II of the Tevatron. The associated production of a top quark with a W boson will be very difficult to observe at the Tevatron. Prospects for observing the other two production mechanisms are much better. The spin state of the produced top quark is understood at leading ord"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"hep-ph/0011349","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/hep-ph/0011349/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":"2026-07-04T14:27:44Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"X3G75cjdRg6y+5nK7Ik5JuEgh+cC8JAE+a5hNPoR0BX+vxbnWbSt4LauDXJUGU4keVjRUEV6tuWnGGwo3rg+Dg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-04T22:19:58.076150Z"},"content_sha256":"e4e54c925024fcae1e6817e1afd8f56bc27e6ce45b3af6660007ab691455ba70","schema_version":"1.0","event_id":"sha256:e4e54c925024fcae1e6817e1afd8f56bc27e6ce45b3af6660007ab691455ba70"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/GQGUDBE54ET6UNWGK4RJUIVJLC/bundle.json","state_url":"https://pith.science/pith/GQGUDBE54ET6UNWGK4RJUIVJLC/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/GQGUDBE54ET6UNWGK4RJUIVJLC/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":"2026-07-04T22:19:58Z","links":{"resolver":"https://pith.science/pith/GQGUDBE54ET6UNWGK4RJUIVJLC","bundle":"https://pith.science/pith/GQGUDBE54ET6UNWGK4RJUIVJLC/bundle.json","state":"https://pith.science/pith/GQGUDBE54ET6UNWGK4RJUIVJLC/state.json","well_known_bundle":"https://pith.science/.well-known/pith/GQGUDBE54ET6UNWGK4RJUIVJLC/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2000:GQGUDBE54ET6UNWGK4RJUIVJLC","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":"69658e13263027d0596116a984d47eb0a9b638066057bd7b17ce3d54f5915fad","cross_cats_sorted":["hep-ex"],"license":"","primary_cat":"hep-ph","submitted_at":"2000-11-28T15:27:26Z","title_canon_sha256":"ed37411ae84b9edc9f47df2f3f9e4c573dbcad1b06324bcda2b694f949d0d940"},"schema_version":"1.0","source":{"id":"hep-ph/0011349","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"hep-ph/0011349","created_at":"2026-07-04T14:27:44Z"},{"alias_kind":"arxiv_version","alias_value":"hep-ph/0011349v1","created_at":"2026-07-04T14:27:44Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.hep-ph/0011349","created_at":"2026-07-04T14:27:44Z"},{"alias_kind":"pith_short_12","alias_value":"GQGUDBE54ET6","created_at":"2026-07-04T14:27:44Z"},{"alias_kind":"pith_short_16","alias_value":"GQGUDBE54ET6UNWG","created_at":"2026-07-04T14:27:44Z"},{"alias_kind":"pith_short_8","alias_value":"GQGUDBE5","created_at":"2026-07-04T14:27:44Z"}],"graph_snapshots":[{"event_id":"sha256:e4e54c925024fcae1e6817e1afd8f56bc27e6ce45b3af6660007ab691455ba70","target":"graph","created_at":"2026-07-04T14:27:44Z","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/hep-ph/0011349/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"The weak decay of a polarized top quark has a rich structure of angular correlations among its decay products. We describe some of the noteworthy features of such decays. We then examine the three modes of single top production, with an emphasis on the status of calculations of the degree and direction of polarization at Run II of the Tevatron. The associated production of a top quark with a W boson will be very difficult to observe at the Tevatron. Prospects for observing the other two production mechanisms are much better. The spin state of the produced top quark is understood at leading ord","authors_text":"Gregory Mahlon (McGill University)","cross_cats":["hep-ex"],"headline":"","license":"","primary_cat":"hep-ph","submitted_at":"2000-11-28T15:27:26Z","title":"Observing Spin Correlations in Single Top Production and Decay"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"hep-ph/0011349","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":"sha256:4038ae89d108f790e769078823c8a72c67987c70d0e8161227553e1b3280a1e9","target":"record","created_at":"2026-07-04T14:27:44Z","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":"69658e13263027d0596116a984d47eb0a9b638066057bd7b17ce3d54f5915fad","cross_cats_sorted":["hep-ex"],"license":"","primary_cat":"hep-ph","submitted_at":"2000-11-28T15:27:26Z","title_canon_sha256":"ed37411ae84b9edc9f47df2f3f9e4c573dbcad1b06324bcda2b694f949d0d940"},"schema_version":"1.0","source":{"id":"hep-ph/0011349","kind":"arxiv","version":1}},"canonical_sha256":"340d41849de127ea36c657229a22a958b43315417c93a793481bd487d67e3dd8","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"340d41849de127ea36c657229a22a958b43315417c93a793481bd487d67e3dd8","first_computed_at":"2026-07-04T14:27:44.544643Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-04T14:27:44.544643Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"9x1pX/0qRPLpxPHMO9kUN+PKe+NADvfEGSzK+fXLXxVVcb8XrMDbQPbuDM2D+6CcwMjBD3xGxchg5bPd/ioLCw==","signature_status":"signed_v1","signed_at":"2026-07-04T14:27:44.544984Z","signed_message":"canonical_sha256_bytes"},"source_id":"hep-ph/0011349","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:4038ae89d108f790e769078823c8a72c67987c70d0e8161227553e1b3280a1e9","sha256:e4e54c925024fcae1e6817e1afd8f56bc27e6ce45b3af6660007ab691455ba70"],"state_sha256":"83505407282d94bc76cbdad7f6dfa39dee02cc93619af7e6843a014a4e91c744"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"2gFM/+BwDGYLY0YCLBl0+keCPU4Q2jsNulNFXfsR64mFIO8r8qhdyhbDztPF8gv/L2ngctxP8gbYb93gHQQfDQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-07-04T22:19:58.078521Z","bundle_sha256":"6e75de5b5bf031ea63146272908e63c1cad5d9b5fcc3322611c94045bfe1632b"}}