{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2014:T7JWTV7NH2SV2MOMIMWSBYCGMU","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":"ef44674054bf999395d5c55145b55d3a296dec321ae4ebf05ac38f0a88fcbc5b","cross_cats_sorted":["q-fin.MF","q-fin.PM"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"math.OC","submitted_at":"2014-09-02T11:17:45Z","title_canon_sha256":"ebfb1c9bf64b200226645c1678f2adbd0d3e02adb58a52c5bcad4a5b98d2fe65"},"schema_version":"1.0","source":{"id":"1409.0665","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1409.0665","created_at":"2026-05-18T01:53:09Z"},{"alias_kind":"arxiv_version","alias_value":"1409.0665v2","created_at":"2026-05-18T01:53:09Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1409.0665","created_at":"2026-05-18T01:53:09Z"},{"alias_kind":"pith_short_12","alias_value":"T7JWTV7NH2SV","created_at":"2026-05-18T12:28:49Z"},{"alias_kind":"pith_short_16","alias_value":"T7JWTV7NH2SV2MOM","created_at":"2026-05-18T12:28:49Z"},{"alias_kind":"pith_short_8","alias_value":"T7JWTV7N","created_at":"2026-05-18T12:28:49Z"}],"graph_snapshots":[{"event_id":"sha256:1c14988885462de38f8859eb63d531a9684ad51c56175a82c6192ef3755036b0","target":"graph","created_at":"2026-05-18T01:53:09Z","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 this paper we study a continuous time stochastic inventory model for a commodity traded in the spot market and whose supply purchase is affected by price and demand uncertainty. A firm aims at meeting a random demand of the commodity at a random time by maximizing total expected profits. We model the firm's optimal procurement problem as a singular stochastic control problem in which controls are nondecreasing processes and represent the cumulative investment made by the firm in the spot market (a so-called stochastic \"monotone follower problem\"). We assume a general exponential L\\'evy proc","authors_text":"Gabriele Stabile, Giorgio Ferrari, Maria B. Chiarolla","cross_cats":["q-fin.MF","q-fin.PM"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"math.OC","submitted_at":"2014-09-02T11:17:45Z","title":"Optimal Dynamic Procurement Policies for a Storable Commodity with L\\'evy Prices and Convex Holding Costs"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1409.0665","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:c43ae72e687ab47da0bd2b020a1023efabcb5ec9b8dc8b95515a51b2fa008842","target":"record","created_at":"2026-05-18T01:53:09Z","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":"ef44674054bf999395d5c55145b55d3a296dec321ae4ebf05ac38f0a88fcbc5b","cross_cats_sorted":["q-fin.MF","q-fin.PM"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"math.OC","submitted_at":"2014-09-02T11:17:45Z","title_canon_sha256":"ebfb1c9bf64b200226645c1678f2adbd0d3e02adb58a52c5bcad4a5b98d2fe65"},"schema_version":"1.0","source":{"id":"1409.0665","kind":"arxiv","version":2}},"canonical_sha256":"9fd369d7ed3ea55d31cc432d20e0466519c3b8e15e1de8c1be7a070a2af7fae1","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"9fd369d7ed3ea55d31cc432d20e0466519c3b8e15e1de8c1be7a070a2af7fae1","first_computed_at":"2026-05-18T01:53:09.187779Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:53:09.187779Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"gmNemGu9W7cIPfMM7G/xrs4pPxWEozgt99AKj8sw0LmSkEGeXmsFwJs3fOhmZ4LLlthlksinyLQYJXLrGMw8Bg==","signature_status":"signed_v1","signed_at":"2026-05-18T01:53:09.188198Z","signed_message":"canonical_sha256_bytes"},"source_id":"1409.0665","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:c43ae72e687ab47da0bd2b020a1023efabcb5ec9b8dc8b95515a51b2fa008842","sha256:1c14988885462de38f8859eb63d531a9684ad51c56175a82c6192ef3755036b0"],"state_sha256":"9ea17fea102134916945a1db33fa1a1aa1cd5ec30a61f3bc0361a63ac341c8f7"}