{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2016:S2AM7UZCIS3ZZTK5GTID2Y3IZZ","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":"c58856b29c19d7808b86131b8129d5c4e666e8a30cd6d86e18afcfb83dec68f6","cross_cats_sorted":["q-fin.ST","stat.AP"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"stat.ME","submitted_at":"2016-05-09T05:01:35Z","title_canon_sha256":"43098a154447ba9f13f08569dec21c17a312c48cb0096b3125c82c12a933addd"},"schema_version":"1.0","source":{"id":"1605.02418","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1605.02418","created_at":"2026-05-18T01:15:21Z"},{"alias_kind":"arxiv_version","alias_value":"1605.02418v1","created_at":"2026-05-18T01:15:21Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1605.02418","created_at":"2026-05-18T01:15:21Z"},{"alias_kind":"pith_short_12","alias_value":"S2AM7UZCIS3Z","created_at":"2026-05-18T12:30:41Z"},{"alias_kind":"pith_short_16","alias_value":"S2AM7UZCIS3ZZTK5","created_at":"2026-05-18T12:30:41Z"},{"alias_kind":"pith_short_8","alias_value":"S2AM7UZC","created_at":"2026-05-18T12:30:41Z"}],"graph_snapshots":[{"event_id":"sha256:7a46994d63988a09320cef2e3dd786f8cfb9821f9b92d8ea5e7d00b975057d75","target":"graph","created_at":"2026-05-18T01:15:21Z","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":"In an efficient stock market, the log-returns and their time-dependent variances are often jointly modelled by stochastic volatility models (SVMs). Many SVMs assume that errors in log-return and latent volatility process are uncorrelated, which is unrealistic. It turns out that if a non-zero correlation is included in the SVM (e.g., Shephard (2005)), then the expected log-return at time t conditional on the past returns is non-zero, which is not a desirable feature of an efficient stock market. In this paper, we propose a mean-correction for such an SVM for discrete-time returns with non-zero ","authors_text":"Pritam Ranjan, Sujay Mukhoti","cross_cats":["q-fin.ST","stat.AP"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"stat.ME","submitted_at":"2016-05-09T05:01:35Z","title":"Mean-correction and Higher Order Moments for a Stochastic Volatility Model with Correlated Errors"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1605.02418","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:cdd0dc88c35c255e107b01fac957b41ea75882db895c1e904ef453c7cb7bcc50","target":"record","created_at":"2026-05-18T01:15:21Z","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":"c58856b29c19d7808b86131b8129d5c4e666e8a30cd6d86e18afcfb83dec68f6","cross_cats_sorted":["q-fin.ST","stat.AP"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"stat.ME","submitted_at":"2016-05-09T05:01:35Z","title_canon_sha256":"43098a154447ba9f13f08569dec21c17a312c48cb0096b3125c82c12a933addd"},"schema_version":"1.0","source":{"id":"1605.02418","kind":"arxiv","version":1}},"canonical_sha256":"9680cfd32244b79ccd5d34d03d6368ce6eb5cf1e4a0657c3bc590cb5eb5f8511","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"9680cfd32244b79ccd5d34d03d6368ce6eb5cf1e4a0657c3bc590cb5eb5f8511","first_computed_at":"2026-05-18T01:15:21.053713Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:15:21.053713Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"T+dEJcy07X4+Bm+zpAS/gKq8xLRpDgT6TYHShf/a1WRgfcInBzTfaTwywxLfBt7G3roBG8EDy+FbJHb9CgiIDA==","signature_status":"signed_v1","signed_at":"2026-05-18T01:15:21.054381Z","signed_message":"canonical_sha256_bytes"},"source_id":"1605.02418","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:cdd0dc88c35c255e107b01fac957b41ea75882db895c1e904ef453c7cb7bcc50","sha256:7a46994d63988a09320cef2e3dd786f8cfb9821f9b92d8ea5e7d00b975057d75"],"state_sha256":"3a0dbdd7fc9d267a8e79f506fa97214eb29f1bfc7365a1286516ab7b235ba02c"}