{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2014:EJVIU6IPSKNQX5F53VTVZDU2SV","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":"c8a70638829538c925cbb9bce7a21bf0502f264054d8221c7748ecf639667b4f","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"q-fin.CP","submitted_at":"2014-01-13T16:23:54Z","title_canon_sha256":"cb483e6ae98e3fded7fba871f3f5e2b34255db464b85a68416670db38b95f57e"},"schema_version":"1.0","source":{"id":"1401.2900","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1401.2900","created_at":"2026-05-18T03:01:01Z"},{"alias_kind":"arxiv_version","alias_value":"1401.2900v2","created_at":"2026-05-18T03:01:01Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1401.2900","created_at":"2026-05-18T03:01:01Z"},{"alias_kind":"pith_short_12","alias_value":"EJVIU6IPSKNQ","created_at":"2026-05-18T12:28:28Z"},{"alias_kind":"pith_short_16","alias_value":"EJVIU6IPSKNQX5F5","created_at":"2026-05-18T12:28:28Z"},{"alias_kind":"pith_short_8","alias_value":"EJVIU6IP","created_at":"2026-05-18T12:28:28Z"}],"graph_snapshots":[{"event_id":"sha256:aa14249fcbeb0bf40aac5a7809b102d4a6cb4a5c84c2461f9a1c1aa82b701253","target":"graph","created_at":"2026-05-18T03:01:01Z","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 propose an efficient lattice procedure which permits to obtain European and American option prices under the Black and Scholes model for digital options with barrier features. Numerical results show the accuracy of the proposed method.","authors_text":"Andrea Ligori, Elisa Appolloni","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"q-fin.CP","submitted_at":"2014-01-13T16:23:54Z","title":"Efficient tree methods for pricing digital barrier options"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1401.2900","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":"sha256:26ca1a4edfb8c0b21e7b8663b334080efac8db6de5e1eb884d8816b00ecbc09d","target":"record","created_at":"2026-05-18T03:01:01Z","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":"c8a70638829538c925cbb9bce7a21bf0502f264054d8221c7748ecf639667b4f","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"q-fin.CP","submitted_at":"2014-01-13T16:23:54Z","title_canon_sha256":"cb483e6ae98e3fded7fba871f3f5e2b34255db464b85a68416670db38b95f57e"},"schema_version":"1.0","source":{"id":"1401.2900","kind":"arxiv","version":2}},"canonical_sha256":"226a8a790f929b0bf4bddd675c8e9a95471fe121b93a613932e5f3530d7f277b","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"226a8a790f929b0bf4bddd675c8e9a95471fe121b93a613932e5f3530d7f277b","first_computed_at":"2026-05-18T03:01:01.879968Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T03:01:01.879968Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"+Wetn8CP657PXcgLpApFaNIpG6sphKDq6nEof9ST4iNOCoBE0PVCscnDDcaRMdZdlCddM9dHkZ3FIJYce1kBDw==","signature_status":"signed_v1","signed_at":"2026-05-18T03:01:01.880628Z","signed_message":"canonical_sha256_bytes"},"source_id":"1401.2900","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:26ca1a4edfb8c0b21e7b8663b334080efac8db6de5e1eb884d8816b00ecbc09d","sha256:aa14249fcbeb0bf40aac5a7809b102d4a6cb4a5c84c2461f9a1c1aa82b701253"],"state_sha256":"7fd449fdf75168501af0a42bfacda26c39abcea196c54ed53a079856b3687a34"}