{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2009:HSJBJ4D5BUD55UCLHZMFX3XVCL","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":"d4160fa9e30e68d79377ca884caf259b4c28cbf62b191ede401abde8c63300aa","cross_cats_sorted":["cs.NA","math.GN"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"math.NA","submitted_at":"2009-07-03T18:43:27Z","title_canon_sha256":"2987ce81b7ce69b4cae53a696e461247e869a4d7d0765a9e24d9b71140b14c8e"},"schema_version":"1.0","source":{"id":"0907.0693","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"0907.0693","created_at":"2026-06-03T23:06:27Z"},{"alias_kind":"arxiv_version","alias_value":"0907.0693v1","created_at":"2026-06-03T23:06:27Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0907.0693","created_at":"2026-06-03T23:06:27Z"},{"alias_kind":"pith_short_12","alias_value":"HSJBJ4D5BUD5","created_at":"2026-06-03T23:06:27Z"},{"alias_kind":"pith_short_16","alias_value":"HSJBJ4D5BUD55UCL","created_at":"2026-06-03T23:06:27Z"},{"alias_kind":"pith_short_8","alias_value":"HSJBJ4D5","created_at":"2026-06-03T23:06:27Z"}],"graph_snapshots":[{"event_id":"sha256:a55277be6ec1276e0cb77a147e66d8bf6dc45ce923d8785e927a71e4385fbd9d","target":"graph","created_at":"2026-06-03T23:06:27Z","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"},"integrity":{"available":true,"clean":true,"detectors_run":[],"endpoint":"/pith/0907.0693/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We present a stable and convergent method for solving initial value problems based on the use of differentiation matrices obtained by Lagrange interpolation. This implicit multistep-like method is easy-to-use and performs pretty well in the solution of mildly stiff problems and it can also be applied directly to differential problems in the complex plane.","authors_text":"Francisco Dominguez Mota, Rafael G. Campos","cross_cats":["cs.NA","math.GN"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"math.NA","submitted_at":"2009-07-03T18:43:27Z","title":"A simple convergent solver for initial value problems"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0907.0693","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:de2a165d95530c0dd760edc62c5f7ffd1181cbba477754ce2158f17b5be8e88f","target":"record","created_at":"2026-06-03T23:06:27Z","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":"d4160fa9e30e68d79377ca884caf259b4c28cbf62b191ede401abde8c63300aa","cross_cats_sorted":["cs.NA","math.GN"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"math.NA","submitted_at":"2009-07-03T18:43:27Z","title_canon_sha256":"2987ce81b7ce69b4cae53a696e461247e869a4d7d0765a9e24d9b71140b14c8e"},"schema_version":"1.0","source":{"id":"0907.0693","kind":"arxiv","version":1}},"canonical_sha256":"3c9214f07d0d07ded04b3e585beef512fc08193ad46de5c2578d17a13a17c077","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"3c9214f07d0d07ded04b3e585beef512fc08193ad46de5c2578d17a13a17c077","first_computed_at":"2026-06-03T23:06:27.554689Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-06-03T23:06:27.554689Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"SIr/BO3RmnKcPHn0i16Aqn6GWwiSbx1TrnWOGC/Ogn6xEeHiH55GPBaL5ZbJNuV4IKd6svYIRyAokAgyPEsWCQ==","signature_status":"signed_v1","signed_at":"2026-06-03T23:06:27.555151Z","signed_message":"canonical_sha256_bytes"},"source_id":"0907.0693","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:de2a165d95530c0dd760edc62c5f7ffd1181cbba477754ce2158f17b5be8e88f","sha256:a55277be6ec1276e0cb77a147e66d8bf6dc45ce923d8785e927a71e4385fbd9d"],"state_sha256":"29930cb55f72ca3812ff0911ba947e2a5b0be5c3c899d71ce8e833e38a25418c"}