{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2007:FXBRYXL53Y52YKD4XRRIWABNCL","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":"38ecb6182fb172115b8482f7696d3f1b92b51ad017357eb413115258f279a8af","cross_cats_sorted":["math.PR"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"q-fin.PM","submitted_at":"2007-08-13T14:16:08Z","title_canon_sha256":"c33811d2fe0ddef56892aa5ae0c214d86ba1ddc704f44ba771ffd64bbe5766ac"},"schema_version":"1.0","source":{"id":"0708.1715","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"0708.1715","created_at":"2026-05-18T00:39:48Z"},{"alias_kind":"arxiv_version","alias_value":"0708.1715v2","created_at":"2026-05-18T00:39:48Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0708.1715","created_at":"2026-05-18T00:39:48Z"},{"alias_kind":"pith_short_12","alias_value":"FXBRYXL53Y52","created_at":"2026-05-18T12:25:55Z"},{"alias_kind":"pith_short_16","alias_value":"FXBRYXL53Y52YKD4","created_at":"2026-05-18T12:25:55Z"},{"alias_kind":"pith_short_8","alias_value":"FXBRYXL5","created_at":"2026-05-18T12:25:55Z"}],"graph_snapshots":[{"event_id":"sha256:244c463c123b59666be5f09d5078aa500b637a3cea07484712cac3ffa244184a","target":"graph","created_at":"2026-05-18T00:39:48Z","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 provide a new characterization of mean-variance hedging strategies in a general semimartingale market. The key point is the introduction of a new probability measure $P^{\\star}$ which turns the dynamic asset allocation problem into a myopic one. The minimal martingale measure relative to $P^{\\star}$ coincides with the variance-optimal martingale measure relative to the original probability measure $P$.","authors_text":"Ale\\v{s} \\v{C}ern\\'y, Jan Kallsen","cross_cats":["math.PR"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"q-fin.PM","submitted_at":"2007-08-13T14:16:08Z","title":"On the Structure of General Mean-Variance Hedging Strategies"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0708.1715","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:d2090f6c1e1b9b702ebb864c94911b102dce7efee4e068ee44abf56443fe057c","target":"record","created_at":"2026-05-18T00:39:48Z","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":"38ecb6182fb172115b8482f7696d3f1b92b51ad017357eb413115258f279a8af","cross_cats_sorted":["math.PR"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"q-fin.PM","submitted_at":"2007-08-13T14:16:08Z","title_canon_sha256":"c33811d2fe0ddef56892aa5ae0c214d86ba1ddc704f44ba771ffd64bbe5766ac"},"schema_version":"1.0","source":{"id":"0708.1715","kind":"arxiv","version":2}},"canonical_sha256":"2dc31c5d7dde3bac287cbc628b002d12e4de5ea13ab04630b8e154ddb6d1eeaf","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"2dc31c5d7dde3bac287cbc628b002d12e4de5ea13ab04630b8e154ddb6d1eeaf","first_computed_at":"2026-05-18T00:39:48.608083Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:39:48.608083Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"wraluxpViNQg/bmh0jVnuH/1IPJT6xcF7hPvcTQEtg4ROUAIYaLz3YFom8uV8E1IdVpMnvrL9amPl3n183eICA==","signature_status":"signed_v1","signed_at":"2026-05-18T00:39:48.608880Z","signed_message":"canonical_sha256_bytes"},"source_id":"0708.1715","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:d2090f6c1e1b9b702ebb864c94911b102dce7efee4e068ee44abf56443fe057c","sha256:244c463c123b59666be5f09d5078aa500b637a3cea07484712cac3ffa244184a"],"state_sha256":"e94d1545508943fab22d5c8622bc82a6c3439ca2e094ae1940371e52ae0d08a0"}