{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2012:ORWIHHVYGDE4XHPTTFA7E356UH","short_pith_number":"pith:ORWIHHVY","canonical_record":{"source":{"id":"1208.3112","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"math.AP","submitted_at":"2012-08-15T13:24:44Z","cross_cats_sorted":["math.NA"],"title_canon_sha256":"b3a426ba83a42deb799da2123f7915f2bd6c14e1e20f1c66e89e949dac05176f","abstract_canon_sha256":"a0ecbba973c66e9b6f8ffb073eecd83fa8a1c50042975a00797f843338cce23d"},"schema_version":"1.0"},"canonical_sha256":"746c839eb830c9cb9df39941f26fbea1d9ea7522f25703110b95c4d5931ee076","source":{"kind":"arxiv","id":"1208.3112","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1208.3112","created_at":"2026-05-18T03:44:46Z"},{"alias_kind":"arxiv_version","alias_value":"1208.3112v2","created_at":"2026-05-18T03:44:46Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1208.3112","created_at":"2026-05-18T03:44:46Z"},{"alias_kind":"pith_short_12","alias_value":"ORWIHHVYGDE4","created_at":"2026-05-18T12:27:16Z"},{"alias_kind":"pith_short_16","alias_value":"ORWIHHVYGDE4XHPT","created_at":"2026-05-18T12:27:16Z"},{"alias_kind":"pith_short_8","alias_value":"ORWIHHVY","created_at":"2026-05-18T12:27:16Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2012:ORWIHHVYGDE4XHPTTFA7E356UH","target":"record","payload":{"canonical_record":{"source":{"id":"1208.3112","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"math.AP","submitted_at":"2012-08-15T13:24:44Z","cross_cats_sorted":["math.NA"],"title_canon_sha256":"b3a426ba83a42deb799da2123f7915f2bd6c14e1e20f1c66e89e949dac05176f","abstract_canon_sha256":"a0ecbba973c66e9b6f8ffb073eecd83fa8a1c50042975a00797f843338cce23d"},"schema_version":"1.0"},"canonical_sha256":"746c839eb830c9cb9df39941f26fbea1d9ea7522f25703110b95c4d5931ee076","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T03:44:46.786671Z","signature_b64":"+2h8FoYHB8It2iSjLjzU025k3WVduVJyQb2Uxg7uF5f4EQkw6W/hGCII3UN1zTqK4m2Y1C4UjVkpW7dzQwtABQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"746c839eb830c9cb9df39941f26fbea1d9ea7522f25703110b95c4d5931ee076","last_reissued_at":"2026-05-18T03:44:46.785943Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T03:44:46.785943Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1208.3112","source_version":2,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T03:44:46Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"hchfvQmHFTGUfKY4+YAifQP1OFv/vT7lvdsVS04jPU6fmVufQMOTFpefPavpZpDJ1KwflJZWorkzl5sIBc4fDw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-26T10:45:43.266763Z"},"content_sha256":"681a44fc35de9a70be9b8f8cad865f105511859c9743aea5dc303c9a6f380284","schema_version":"1.0","event_id":"sha256:681a44fc35de9a70be9b8f8cad865f105511859c9743aea5dc303c9a6f380284"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2012:ORWIHHVYGDE4XHPTTFA7E356UH","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"pde2path - A Matlab package for continuation and bifurcation in 2D elliptic systems","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["math.NA"],"primary_cat":"math.AP","authors_text":"Daniel Wetzel, Hannes Uecker, Jens D. M. Rademacher","submitted_at":"2012-08-15T13:24:44Z","abstract_excerpt":"pde2path is a free and easy to use Matlab continuation/bifurcation package for elliptic systems of PDEs with arbitrary many components, on general two dimensional domains, and with rather general boundary conditions. The package is based on the FEM of the Matlab pdetoolbox, and is explained by a number of examples, including Bratu's problem, the Schnakenberg model, Rayleigh-Benard convection, and von Karman plate equations. These serve as templates to study new problems, for which the user has to provide, via Matlab function files, a description of the geometry, the boundary conditions, the co"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1208.3112","kind":"arxiv","version":2},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"references":{"count":0,"sample":[],"resolved_work":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","internal_anchors":0},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"author_claims":{"count":0,"strong_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"builder_version":"pith-number-builder-2026-05-17-v1"},"verdict_id":null},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T03:44:46Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"K/eO2iFfSAT6bDM5HspZORsKXtQJ7owyVEZL9+SmO8/qbXpBfqHRzD8/kgbGv1k4/UzrIK17n56FemZf9HM9AA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-26T10:45:43.268027Z"},"content_sha256":"5c18d6418845cb89f44dfd34d5fef5dcb511a16e7a74db4dc1dd6e50b1ce085b","schema_version":"1.0","event_id":"sha256:5c18d6418845cb89f44dfd34d5fef5dcb511a16e7a74db4dc1dd6e50b1ce085b"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/ORWIHHVYGDE4XHPTTFA7E356UH/bundle.json","state_url":"https://pith.science/pith/ORWIHHVYGDE4XHPTTFA7E356UH/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/ORWIHHVYGDE4XHPTTFA7E356UH/bundle.json","status":"primary"}],"public_keys":[{"key_id":"pith-v1-2026-05","algorithm":"ed25519","format":"raw","public_key_b64":"stVStoiQhXFxp4s2pdzPNoqVNBMojDU/fJ2db5S3CbM=","public_key_hex":"b2d552b68890857171a78b36a5dccf368a953413288c353f7c9d9d6f94b709b3","fingerprint_sha256_b32_first128bits":"RVFV5Z2OI2J3ZUO7ERDEBCYNKS","fingerprint_sha256_hex":"8d4b5ee74e4693bcd1df2446408b0d54","rotates_at":null,"url":"https://pith.science/pith-signing-key.json","notes":"Pith uses this Ed25519 key to sign canonical record SHA-256 digests. Verify with: ed25519_verify(public_key, message=canonical_sha256_bytes, signature=base64decode(signature_b64))."}],"merge_version":"pith-open-graph-merge-v1","built_at":"2026-05-26T10:45:43Z","links":{"resolver":"https://pith.science/pith/ORWIHHVYGDE4XHPTTFA7E356UH","bundle":"https://pith.science/pith/ORWIHHVYGDE4XHPTTFA7E356UH/bundle.json","state":"https://pith.science/pith/ORWIHHVYGDE4XHPTTFA7E356UH/state.json","well_known_bundle":"https://pith.science/.well-known/pith/ORWIHHVYGDE4XHPTTFA7E356UH/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2012:ORWIHHVYGDE4XHPTTFA7E356UH","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":"a0ecbba973c66e9b6f8ffb073eecd83fa8a1c50042975a00797f843338cce23d","cross_cats_sorted":["math.NA"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"math.AP","submitted_at":"2012-08-15T13:24:44Z","title_canon_sha256":"b3a426ba83a42deb799da2123f7915f2bd6c14e1e20f1c66e89e949dac05176f"},"schema_version":"1.0","source":{"id":"1208.3112","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1208.3112","created_at":"2026-05-18T03:44:46Z"},{"alias_kind":"arxiv_version","alias_value":"1208.3112v2","created_at":"2026-05-18T03:44:46Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1208.3112","created_at":"2026-05-18T03:44:46Z"},{"alias_kind":"pith_short_12","alias_value":"ORWIHHVYGDE4","created_at":"2026-05-18T12:27:16Z"},{"alias_kind":"pith_short_16","alias_value":"ORWIHHVYGDE4XHPT","created_at":"2026-05-18T12:27:16Z"},{"alias_kind":"pith_short_8","alias_value":"ORWIHHVY","created_at":"2026-05-18T12:27:16Z"}],"graph_snapshots":[{"event_id":"sha256:5c18d6418845cb89f44dfd34d5fef5dcb511a16e7a74db4dc1dd6e50b1ce085b","target":"graph","created_at":"2026-05-18T03:44:46Z","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":"pde2path is a free and easy to use Matlab continuation/bifurcation package for elliptic systems of PDEs with arbitrary many components, on general two dimensional domains, and with rather general boundary conditions. The package is based on the FEM of the Matlab pdetoolbox, and is explained by a number of examples, including Bratu's problem, the Schnakenberg model, Rayleigh-Benard convection, and von Karman plate equations. These serve as templates to study new problems, for which the user has to provide, via Matlab function files, a description of the geometry, the boundary conditions, the co","authors_text":"Daniel Wetzel, Hannes Uecker, Jens D. M. Rademacher","cross_cats":["math.NA"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"math.AP","submitted_at":"2012-08-15T13:24:44Z","title":"pde2path - A Matlab package for continuation and bifurcation in 2D elliptic systems"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1208.3112","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":"sha256:681a44fc35de9a70be9b8f8cad865f105511859c9743aea5dc303c9a6f380284","target":"record","created_at":"2026-05-18T03:44:46Z","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":"a0ecbba973c66e9b6f8ffb073eecd83fa8a1c50042975a00797f843338cce23d","cross_cats_sorted":["math.NA"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"math.AP","submitted_at":"2012-08-15T13:24:44Z","title_canon_sha256":"b3a426ba83a42deb799da2123f7915f2bd6c14e1e20f1c66e89e949dac05176f"},"schema_version":"1.0","source":{"id":"1208.3112","kind":"arxiv","version":2}},"canonical_sha256":"746c839eb830c9cb9df39941f26fbea1d9ea7522f25703110b95c4d5931ee076","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"746c839eb830c9cb9df39941f26fbea1d9ea7522f25703110b95c4d5931ee076","first_computed_at":"2026-05-18T03:44:46.785943Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T03:44:46.785943Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"+2h8FoYHB8It2iSjLjzU025k3WVduVJyQb2Uxg7uF5f4EQkw6W/hGCII3UN1zTqK4m2Y1C4UjVkpW7dzQwtABQ==","signature_status":"signed_v1","signed_at":"2026-05-18T03:44:46.786671Z","signed_message":"canonical_sha256_bytes"},"source_id":"1208.3112","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:681a44fc35de9a70be9b8f8cad865f105511859c9743aea5dc303c9a6f380284","sha256:5c18d6418845cb89f44dfd34d5fef5dcb511a16e7a74db4dc1dd6e50b1ce085b"],"state_sha256":"d78a1095780490a46b1445cb3b411c5422770171e1b7b95f293e7a6a0bfed954"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"shdaYwKDKl4u8BPvaUeQg4i4HyjqWH8Q/mPif4wKliRyfi0l5Y2b/RfKdBSqWayZyiPcac+KOEwY7y4CgBurAA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-26T10:45:43.272015Z","bundle_sha256":"9bb7e40bad8bc034eb3522673ec10259c5d7b29a6e99d3609dbf39c3b66f2415"}}