{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2011:QPX5NKZML3VARVGYMBMGTECAOB","short_pith_number":"pith:QPX5NKZM","canonical_record":{"source":{"id":"1109.0648","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2011-09-03T19:48:19Z","cross_cats_sorted":["hep-ex"],"title_canon_sha256":"dcf38cbd32393c147bc35eab0692abae195b6e45c8a64d091ccc8f8b9aa7aacf","abstract_canon_sha256":"066efd154c52574140dbec42da5973711b2bee5a54ad853734587bcc32b57748"},"schema_version":"1.0"},"canonical_sha256":"83efd6ab2c5eea08d4d860586990407064f8382fa4538f268a8dcbf9c81bf020","source":{"kind":"arxiv","id":"1109.0648","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1109.0648","created_at":"2026-05-18T02:21:36Z"},{"alias_kind":"arxiv_version","alias_value":"1109.0648v2","created_at":"2026-05-18T02:21:36Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1109.0648","created_at":"2026-05-18T02:21:36Z"},{"alias_kind":"pith_short_12","alias_value":"QPX5NKZML3VA","created_at":"2026-05-18T12:26:39Z"},{"alias_kind":"pith_short_16","alias_value":"QPX5NKZML3VARVGY","created_at":"2026-05-18T12:26:39Z"},{"alias_kind":"pith_short_8","alias_value":"QPX5NKZM","created_at":"2026-05-18T12:26:39Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2011:QPX5NKZML3VARVGYMBMGTECAOB","target":"record","payload":{"canonical_record":{"source":{"id":"1109.0648","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2011-09-03T19:48:19Z","cross_cats_sorted":["hep-ex"],"title_canon_sha256":"dcf38cbd32393c147bc35eab0692abae195b6e45c8a64d091ccc8f8b9aa7aacf","abstract_canon_sha256":"066efd154c52574140dbec42da5973711b2bee5a54ad853734587bcc32b57748"},"schema_version":"1.0"},"canonical_sha256":"83efd6ab2c5eea08d4d860586990407064f8382fa4538f268a8dcbf9c81bf020","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:21:36.959209Z","signature_b64":"oFDrLalltMfXHfAcXGkET1yB2qXeDjC/dtktnVL3XfmVFNV9ifFzzFvTwDXd7R/msZGbzL4au1/7W73oC27yAw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"83efd6ab2c5eea08d4d860586990407064f8382fa4538f268a8dcbf9c81bf020","last_reissued_at":"2026-05-18T02:21:36.958729Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:21:36.958729Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1109.0648","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":"2026-05-18T02:21:36Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"q0o/+3fqhrWKYHP7bECFPsUkObqH3nymNBrQagAvSGkXKdfFWbFrrj7m7MuHVmL4Xhw7vV4ytEvDBCbnnF7sDQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-28T19:09:27.195559Z"},"content_sha256":"e80dad4d705d999f7c7da79d70c162640b26b65852b37810c937c57bc3b55a7e","schema_version":"1.0","event_id":"sha256:e80dad4d705d999f7c7da79d70c162640b26b65852b37810c937c57bc3b55a7e"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2011:QPX5NKZML3VARVGYMBMGTECAOB","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Very Light Axigluons and the Top Asymmetry","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["hep-ex"],"primary_cat":"hep-ph","authors_text":"Gordan Z. Krnjaic","submitted_at":"2011-09-03T19:48:19Z","abstract_excerpt":"We show that very light (50 - 90 GeV) axigluons with flavor-universal couplings of order g_{s}/3 may explain the anomalous top forward-backward asymmetry reported by both CDF and D0 collaborations. The model is naturally consistent with the observed t \\bar t invariant mass distribution and evades bounds from light Higgs searches, LEP event shapes, and hadronic observables at the Z pole. Very light axigluons can appear as resonances in multijet events, but searches require sensitivity to masses below current limits."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1109.0648","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":"2026-05-18T02:21:36Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"JWW1rxjRR0TOpiv+gysnH+cm5u9nRyKWF+wmNEchirgDReWWTpB9w11UCFa2HUOAU1Qgmw4YHWL7FxgbsFSfCQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-28T19:09:27.196201Z"},"content_sha256":"745cb3a62611244146a3a15df69a34e898f2258d710cd4d1548945e70e14829d","schema_version":"1.0","event_id":"sha256:745cb3a62611244146a3a15df69a34e898f2258d710cd4d1548945e70e14829d"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/QPX5NKZML3VARVGYMBMGTECAOB/bundle.json","state_url":"https://pith.science/pith/QPX5NKZML3VARVGYMBMGTECAOB/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/QPX5NKZML3VARVGYMBMGTECAOB/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":"2026-05-28T19:09:27Z","links":{"resolver":"https://pith.science/pith/QPX5NKZML3VARVGYMBMGTECAOB","bundle":"https://pith.science/pith/QPX5NKZML3VARVGYMBMGTECAOB/bundle.json","state":"https://pith.science/pith/QPX5NKZML3VARVGYMBMGTECAOB/state.json","well_known_bundle":"https://pith.science/.well-known/pith/QPX5NKZML3VARVGYMBMGTECAOB/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2011:QPX5NKZML3VARVGYMBMGTECAOB","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":"066efd154c52574140dbec42da5973711b2bee5a54ad853734587bcc32b57748","cross_cats_sorted":["hep-ex"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2011-09-03T19:48:19Z","title_canon_sha256":"dcf38cbd32393c147bc35eab0692abae195b6e45c8a64d091ccc8f8b9aa7aacf"},"schema_version":"1.0","source":{"id":"1109.0648","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1109.0648","created_at":"2026-05-18T02:21:36Z"},{"alias_kind":"arxiv_version","alias_value":"1109.0648v2","created_at":"2026-05-18T02:21:36Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1109.0648","created_at":"2026-05-18T02:21:36Z"},{"alias_kind":"pith_short_12","alias_value":"QPX5NKZML3VA","created_at":"2026-05-18T12:26:39Z"},{"alias_kind":"pith_short_16","alias_value":"QPX5NKZML3VARVGY","created_at":"2026-05-18T12:26:39Z"},{"alias_kind":"pith_short_8","alias_value":"QPX5NKZM","created_at":"2026-05-18T12:26:39Z"}],"graph_snapshots":[{"event_id":"sha256:745cb3a62611244146a3a15df69a34e898f2258d710cd4d1548945e70e14829d","target":"graph","created_at":"2026-05-18T02:21:36Z","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 show that very light (50 - 90 GeV) axigluons with flavor-universal couplings of order g_{s}/3 may explain the anomalous top forward-backward asymmetry reported by both CDF and D0 collaborations. The model is naturally consistent with the observed t \\bar t invariant mass distribution and evades bounds from light Higgs searches, LEP event shapes, and hadronic observables at the Z pole. Very light axigluons can appear as resonances in multijet events, but searches require sensitivity to masses below current limits.","authors_text":"Gordan Z. Krnjaic","cross_cats":["hep-ex"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2011-09-03T19:48:19Z","title":"Very Light Axigluons and the Top Asymmetry"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1109.0648","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:e80dad4d705d999f7c7da79d70c162640b26b65852b37810c937c57bc3b55a7e","target":"record","created_at":"2026-05-18T02:21:36Z","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":"066efd154c52574140dbec42da5973711b2bee5a54ad853734587bcc32b57748","cross_cats_sorted":["hep-ex"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2011-09-03T19:48:19Z","title_canon_sha256":"dcf38cbd32393c147bc35eab0692abae195b6e45c8a64d091ccc8f8b9aa7aacf"},"schema_version":"1.0","source":{"id":"1109.0648","kind":"arxiv","version":2}},"canonical_sha256":"83efd6ab2c5eea08d4d860586990407064f8382fa4538f268a8dcbf9c81bf020","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"83efd6ab2c5eea08d4d860586990407064f8382fa4538f268a8dcbf9c81bf020","first_computed_at":"2026-05-18T02:21:36.958729Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:21:36.958729Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"oFDrLalltMfXHfAcXGkET1yB2qXeDjC/dtktnVL3XfmVFNV9ifFzzFvTwDXd7R/msZGbzL4au1/7W73oC27yAw==","signature_status":"signed_v1","signed_at":"2026-05-18T02:21:36.959209Z","signed_message":"canonical_sha256_bytes"},"source_id":"1109.0648","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:e80dad4d705d999f7c7da79d70c162640b26b65852b37810c937c57bc3b55a7e","sha256:745cb3a62611244146a3a15df69a34e898f2258d710cd4d1548945e70e14829d"],"state_sha256":"710b19dfab09553d8bd3080c35ed8c0eb917ee9f26d4ccaad7be694acf2fa86a"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"76z467gtSsb9ZB1Y3Hao802iNjQ5oEwUjPLYejA4zYgicIKDp+W6ZwYQtpai0ECWWMn8c5t/kCBowfblmaDMAA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-28T19:09:27.199453Z","bundle_sha256":"061d6d9e18768e8796d769aa6cfd6e90e16ef22b4d232df7fb2d4526ac2d1679"}}