{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2013:Z2S2K7X5V7RAXJTLPI3SUSMBQV","short_pith_number":"pith:Z2S2K7X5","canonical_record":{"source":{"id":"1309.1204","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.MS","submitted_at":"2013-09-04T23:03:33Z","cross_cats_sorted":["cs.CE"],"title_canon_sha256":"8b63e563e8f264669a06f12722ae40fd1ae7a927112a3203d94d4e6100fb169c","abstract_canon_sha256":"6fc05aafc694629f83bad2652acc6d1763ea0eb069fd5f2ee529773c0f6e77b9"},"schema_version":"1.0"},"canonical_sha256":"cea5a57efdafe20ba66b7a372a49818569f5db53d5953b364b3ee3fc0d3f8d7b","source":{"kind":"arxiv","id":"1309.1204","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1309.1204","created_at":"2026-05-18T03:13:59Z"},{"alias_kind":"arxiv_version","alias_value":"1309.1204v2","created_at":"2026-05-18T03:13:59Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1309.1204","created_at":"2026-05-18T03:13:59Z"},{"alias_kind":"pith_short_12","alias_value":"Z2S2K7X5V7RA","created_at":"2026-05-18T12:28:09Z"},{"alias_kind":"pith_short_16","alias_value":"Z2S2K7X5V7RAXJTL","created_at":"2026-05-18T12:28:09Z"},{"alias_kind":"pith_short_8","alias_value":"Z2S2K7X5","created_at":"2026-05-18T12:28:09Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2013:Z2S2K7X5V7RAXJTLPI3SUSMBQV","target":"record","payload":{"canonical_record":{"source":{"id":"1309.1204","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.MS","submitted_at":"2013-09-04T23:03:33Z","cross_cats_sorted":["cs.CE"],"title_canon_sha256":"8b63e563e8f264669a06f12722ae40fd1ae7a927112a3203d94d4e6100fb169c","abstract_canon_sha256":"6fc05aafc694629f83bad2652acc6d1763ea0eb069fd5f2ee529773c0f6e77b9"},"schema_version":"1.0"},"canonical_sha256":"cea5a57efdafe20ba66b7a372a49818569f5db53d5953b364b3ee3fc0d3f8d7b","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T03:13:59.440224Z","signature_b64":"uMESGLy8DVqHUHOxRU0JLiENVOYZAVjQdu6Pqq8bFxnem53OLg2Ls/MHFHmf5efwIZ9LZvEwjg/y/zMK0vdkCw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"cea5a57efdafe20ba66b7a372a49818569f5db53d5953b364b3ee3fc0d3f8d7b","last_reissued_at":"2026-05-18T03:13:59.439657Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T03:13:59.439657Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1309.1204","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":"2026-05-18T03:13:59Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"patpUkqjnUClbe1TsnijUflUjEUpiMCvrJYDztfNqWG2X5IlsvwE3IsUhkCzP4G5LE83UpjLzAb8nmywjGuzCA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-26T23:42:26.652018Z"},"content_sha256":"368cc034d8e17885223f77ebd699bca472b1238bf0acac1b676dcdc6fcccc3b8","schema_version":"1.0","event_id":"sha256:368cc034d8e17885223f77ebd699bca472b1238bf0acac1b676dcdc6fcccc3b8"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2013:Z2S2K7X5V7RAXJTLPI3SUSMBQV","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Achieving High Performance with Unified Residual Evaluation","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cs.CE"],"primary_cat":"cs.MS","authors_text":"Barry F. Smith, Jed Brown, Karl Rupp, Matthew G. Knepley","submitted_at":"2013-09-04T23:03:33Z","abstract_excerpt":"We examine residual evaluation, perhaps the most basic operation in numerical simulation. By raising the level of abstraction in this operation, we can eliminate specialized code, enable optimization, and greatly increase the extensibility of existing code."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1309.1204","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":"2026-05-18T03:13:59Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"br1a6DC/T4oxwjnXYh2mE4dhE2xQouyjGm8kED90Svhp4Z3Q01R7N9WOxv7a+Hlgm/o2BrCSSm0uFzf7VnsrCw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-26T23:42:26.652688Z"},"content_sha256":"446a0112c982a6da4649a4543b46092ed2e5809f41c1f5cc7a9bab6de88745e0","schema_version":"1.0","event_id":"sha256:446a0112c982a6da4649a4543b46092ed2e5809f41c1f5cc7a9bab6de88745e0"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/Z2S2K7X5V7RAXJTLPI3SUSMBQV/bundle.json","state_url":"https://pith.science/pith/Z2S2K7X5V7RAXJTLPI3SUSMBQV/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/Z2S2K7X5V7RAXJTLPI3SUSMBQV/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":"2026-05-26T23:42:26Z","links":{"resolver":"https://pith.science/pith/Z2S2K7X5V7RAXJTLPI3SUSMBQV","bundle":"https://pith.science/pith/Z2S2K7X5V7RAXJTLPI3SUSMBQV/bundle.json","state":"https://pith.science/pith/Z2S2K7X5V7RAXJTLPI3SUSMBQV/state.json","well_known_bundle":"https://pith.science/.well-known/pith/Z2S2K7X5V7RAXJTLPI3SUSMBQV/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2013:Z2S2K7X5V7RAXJTLPI3SUSMBQV","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":"6fc05aafc694629f83bad2652acc6d1763ea0eb069fd5f2ee529773c0f6e77b9","cross_cats_sorted":["cs.CE"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.MS","submitted_at":"2013-09-04T23:03:33Z","title_canon_sha256":"8b63e563e8f264669a06f12722ae40fd1ae7a927112a3203d94d4e6100fb169c"},"schema_version":"1.0","source":{"id":"1309.1204","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1309.1204","created_at":"2026-05-18T03:13:59Z"},{"alias_kind":"arxiv_version","alias_value":"1309.1204v2","created_at":"2026-05-18T03:13:59Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1309.1204","created_at":"2026-05-18T03:13:59Z"},{"alias_kind":"pith_short_12","alias_value":"Z2S2K7X5V7RA","created_at":"2026-05-18T12:28:09Z"},{"alias_kind":"pith_short_16","alias_value":"Z2S2K7X5V7RAXJTL","created_at":"2026-05-18T12:28:09Z"},{"alias_kind":"pith_short_8","alias_value":"Z2S2K7X5","created_at":"2026-05-18T12:28:09Z"}],"graph_snapshots":[{"event_id":"sha256:446a0112c982a6da4649a4543b46092ed2e5809f41c1f5cc7a9bab6de88745e0","target":"graph","created_at":"2026-05-18T03:13:59Z","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 examine residual evaluation, perhaps the most basic operation in numerical simulation. By raising the level of abstraction in this operation, we can eliminate specialized code, enable optimization, and greatly increase the extensibility of existing code.","authors_text":"Barry F. Smith, Jed Brown, Karl Rupp, Matthew G. Knepley","cross_cats":["cs.CE"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.MS","submitted_at":"2013-09-04T23:03:33Z","title":"Achieving High Performance with Unified Residual Evaluation"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1309.1204","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":"sha256:368cc034d8e17885223f77ebd699bca472b1238bf0acac1b676dcdc6fcccc3b8","target":"record","created_at":"2026-05-18T03:13:59Z","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":"6fc05aafc694629f83bad2652acc6d1763ea0eb069fd5f2ee529773c0f6e77b9","cross_cats_sorted":["cs.CE"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.MS","submitted_at":"2013-09-04T23:03:33Z","title_canon_sha256":"8b63e563e8f264669a06f12722ae40fd1ae7a927112a3203d94d4e6100fb169c"},"schema_version":"1.0","source":{"id":"1309.1204","kind":"arxiv","version":2}},"canonical_sha256":"cea5a57efdafe20ba66b7a372a49818569f5db53d5953b364b3ee3fc0d3f8d7b","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"cea5a57efdafe20ba66b7a372a49818569f5db53d5953b364b3ee3fc0d3f8d7b","first_computed_at":"2026-05-18T03:13:59.439657Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T03:13:59.439657Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"uMESGLy8DVqHUHOxRU0JLiENVOYZAVjQdu6Pqq8bFxnem53OLg2Ls/MHFHmf5efwIZ9LZvEwjg/y/zMK0vdkCw==","signature_status":"signed_v1","signed_at":"2026-05-18T03:13:59.440224Z","signed_message":"canonical_sha256_bytes"},"source_id":"1309.1204","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:368cc034d8e17885223f77ebd699bca472b1238bf0acac1b676dcdc6fcccc3b8","sha256:446a0112c982a6da4649a4543b46092ed2e5809f41c1f5cc7a9bab6de88745e0"],"state_sha256":"ac2162264663f5d35ad1d3a458c9586f84e5f4fac09914529d03015a825fe5d7"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"DqZbA/GX5zP2pEDj7rt3WmZ84dC2pXYT72qdTT0G0Js2fhSqkoKbrBm+bW4KH/QZqA9hPnCA70X73VI9dBcsCQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-26T23:42:26.656362Z","bundle_sha256":"42f5fb264c6367419df05467ff12579063a5904eef9027e8abe31ef0ce07245a"}}