{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2011:F2FUWCYKOYS6CQXGEYRBX5OC5O","short_pith_number":"pith:F2FUWCYK","canonical_record":{"source":{"id":"1111.3499","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"math.NA","submitted_at":"2011-11-15T11:12:12Z","cross_cats_sorted":[],"title_canon_sha256":"6870b7ac3d8927f5a21c90ed4047a4179e581c542a0827f2e634f36e78e910c8","abstract_canon_sha256":"19052fa39f0beb08d7559fa705caaae64170a7ef2289583802633a0483d0bf61"},"schema_version":"1.0"},"canonical_sha256":"2e8b4b0b0a7625e142e626221bf5c2eb8bd42ca0ce3c31f33e1163b4d44aaf5d","source":{"kind":"arxiv","id":"1111.3499","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1111.3499","created_at":"2026-05-18T03:18:32Z"},{"alias_kind":"arxiv_version","alias_value":"1111.3499v2","created_at":"2026-05-18T03:18:32Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1111.3499","created_at":"2026-05-18T03:18:32Z"},{"alias_kind":"pith_short_12","alias_value":"F2FUWCYKOYS6","created_at":"2026-05-18T12:26:28Z"},{"alias_kind":"pith_short_16","alias_value":"F2FUWCYKOYS6CQXG","created_at":"2026-05-18T12:26:28Z"},{"alias_kind":"pith_short_8","alias_value":"F2FUWCYK","created_at":"2026-05-18T12:26:28Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2011:F2FUWCYKOYS6CQXGEYRBX5OC5O","target":"record","payload":{"canonical_record":{"source":{"id":"1111.3499","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"math.NA","submitted_at":"2011-11-15T11:12:12Z","cross_cats_sorted":[],"title_canon_sha256":"6870b7ac3d8927f5a21c90ed4047a4179e581c542a0827f2e634f36e78e910c8","abstract_canon_sha256":"19052fa39f0beb08d7559fa705caaae64170a7ef2289583802633a0483d0bf61"},"schema_version":"1.0"},"canonical_sha256":"2e8b4b0b0a7625e142e626221bf5c2eb8bd42ca0ce3c31f33e1163b4d44aaf5d","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T03:18:32.050695Z","signature_b64":"/lS/y2UZH5Ixrk5CTJTVIhIZIm83Ir9Xl+h0YTef812BBxZ5xfUrxmTQnUnsko2YuoWtbbZ8tfgvZ98JApcvCw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"2e8b4b0b0a7625e142e626221bf5c2eb8bd42ca0ce3c31f33e1163b4d44aaf5d","last_reissued_at":"2026-05-18T03:18:32.050102Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T03:18:32.050102Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1111.3499","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":"2026-05-18T03:18:32Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"BLejsUMNZcl7sYcIEql9SqCWUQDlltfLoaCYMg7vc0BKCIy01uWljonHHwmlCwUQre8gDDuYsEkv5LdiEfcaBg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-05T01:00:04.186061Z"},"content_sha256":"c36852a4b36d61dd9bcd12879b6b6b515476a86a6644fb1d6427fc2a7369a508","schema_version":"1.0","event_id":"sha256:c36852a4b36d61dd9bcd12879b6b6b515476a86a6644fb1d6427fc2a7369a508"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2011:F2FUWCYKOYS6CQXGEYRBX5OC5O","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"High-order Wave Propagation Algorithms for Hyperbolic Systems","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"math.NA","authors_text":"David I. Ketcheson, Matteo Parsani, Randall J. LeVeque","submitted_at":"2011-11-15T11:12:12Z","abstract_excerpt":"We present a finite volume method that is applicable to hyperbolic PDEs including spatially varying and semilinear nonconservative systems. The spatial discretization, like that of the well-known Clawpack software, is based on solving Riemann problems and calculating fluctuations (not fluxes). The implementation employs weighted essentially non-oscillatory reconstruction in space and strong stability preserving Runge-Kutta integration in time. The method can be extended to arbitrarily high order of accuracy and allows a well-balanced implementation for capturing solutions of balance laws near "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1111.3499","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":"2026-05-18T03:18:32Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Hg2nK3YaxXapdhn0MnUNlnsmhZ8EZr55EtxKqp0DwGBnpJd8xPIr1Q2H3vkdq+7CLHO3wkKw/lY61DQiX8PaAg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-05T01:00:04.186465Z"},"content_sha256":"ba0b9131e0f0d3e3f7260e8cb2f7f226165a6d7fa0ce8a7faf7da68ca5440018","schema_version":"1.0","event_id":"sha256:ba0b9131e0f0d3e3f7260e8cb2f7f226165a6d7fa0ce8a7faf7da68ca5440018"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/F2FUWCYKOYS6CQXGEYRBX5OC5O/bundle.json","state_url":"https://pith.science/pith/F2FUWCYKOYS6CQXGEYRBX5OC5O/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/F2FUWCYKOYS6CQXGEYRBX5OC5O/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":"2026-06-05T01:00:04Z","links":{"resolver":"https://pith.science/pith/F2FUWCYKOYS6CQXGEYRBX5OC5O","bundle":"https://pith.science/pith/F2FUWCYKOYS6CQXGEYRBX5OC5O/bundle.json","state":"https://pith.science/pith/F2FUWCYKOYS6CQXGEYRBX5OC5O/state.json","well_known_bundle":"https://pith.science/.well-known/pith/F2FUWCYKOYS6CQXGEYRBX5OC5O/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2011:F2FUWCYKOYS6CQXGEYRBX5OC5O","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":"19052fa39f0beb08d7559fa705caaae64170a7ef2289583802633a0483d0bf61","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"math.NA","submitted_at":"2011-11-15T11:12:12Z","title_canon_sha256":"6870b7ac3d8927f5a21c90ed4047a4179e581c542a0827f2e634f36e78e910c8"},"schema_version":"1.0","source":{"id":"1111.3499","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1111.3499","created_at":"2026-05-18T03:18:32Z"},{"alias_kind":"arxiv_version","alias_value":"1111.3499v2","created_at":"2026-05-18T03:18:32Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1111.3499","created_at":"2026-05-18T03:18:32Z"},{"alias_kind":"pith_short_12","alias_value":"F2FUWCYKOYS6","created_at":"2026-05-18T12:26:28Z"},{"alias_kind":"pith_short_16","alias_value":"F2FUWCYKOYS6CQXG","created_at":"2026-05-18T12:26:28Z"},{"alias_kind":"pith_short_8","alias_value":"F2FUWCYK","created_at":"2026-05-18T12:26:28Z"}],"graph_snapshots":[{"event_id":"sha256:ba0b9131e0f0d3e3f7260e8cb2f7f226165a6d7fa0ce8a7faf7da68ca5440018","target":"graph","created_at":"2026-05-18T03:18:32Z","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 present a finite volume method that is applicable to hyperbolic PDEs including spatially varying and semilinear nonconservative systems. The spatial discretization, like that of the well-known Clawpack software, is based on solving Riemann problems and calculating fluctuations (not fluxes). The implementation employs weighted essentially non-oscillatory reconstruction in space and strong stability preserving Runge-Kutta integration in time. The method can be extended to arbitrarily high order of accuracy and allows a well-balanced implementation for capturing solutions of balance laws near ","authors_text":"David I. Ketcheson, Matteo Parsani, Randall J. LeVeque","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"math.NA","submitted_at":"2011-11-15T11:12:12Z","title":"High-order Wave Propagation Algorithms for Hyperbolic Systems"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1111.3499","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:c36852a4b36d61dd9bcd12879b6b6b515476a86a6644fb1d6427fc2a7369a508","target":"record","created_at":"2026-05-18T03:18:32Z","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":"19052fa39f0beb08d7559fa705caaae64170a7ef2289583802633a0483d0bf61","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"math.NA","submitted_at":"2011-11-15T11:12:12Z","title_canon_sha256":"6870b7ac3d8927f5a21c90ed4047a4179e581c542a0827f2e634f36e78e910c8"},"schema_version":"1.0","source":{"id":"1111.3499","kind":"arxiv","version":2}},"canonical_sha256":"2e8b4b0b0a7625e142e626221bf5c2eb8bd42ca0ce3c31f33e1163b4d44aaf5d","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"2e8b4b0b0a7625e142e626221bf5c2eb8bd42ca0ce3c31f33e1163b4d44aaf5d","first_computed_at":"2026-05-18T03:18:32.050102Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T03:18:32.050102Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"/lS/y2UZH5Ixrk5CTJTVIhIZIm83Ir9Xl+h0YTef812BBxZ5xfUrxmTQnUnsko2YuoWtbbZ8tfgvZ98JApcvCw==","signature_status":"signed_v1","signed_at":"2026-05-18T03:18:32.050695Z","signed_message":"canonical_sha256_bytes"},"source_id":"1111.3499","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:c36852a4b36d61dd9bcd12879b6b6b515476a86a6644fb1d6427fc2a7369a508","sha256:ba0b9131e0f0d3e3f7260e8cb2f7f226165a6d7fa0ce8a7faf7da68ca5440018"],"state_sha256":"10e40e436dc27e6fc8bf760b7849f7694e4ce8aa024386cd69af49caec814502"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"POlMe4AjafyjJnFqH6lGFc6AGUcevIIDoJQlzsqM5m/OPkPnAilQwoStViF1sMsOV0f9Uol3gVAIz/oDfquvBg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-05T01:00:04.189962Z","bundle_sha256":"75a353da01b06ed139d96c9363a109703b9ce2819c5967b0e67f46b9c67e3a52"}}