{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2015:DOEE5I5BTZG37ZXRVO4CNCFMLC","short_pith_number":"pith:DOEE5I5B","canonical_record":{"source":{"id":"1506.04651","kind":"arxiv","version":3},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.NA","submitted_at":"2015-06-09T12:53:48Z","cross_cats_sorted":["cs.DC","math.AP","math.NA"],"title_canon_sha256":"9092ff04e5c1ad0008010db8956cdaeccc320d0c91a926f013e9f74dbd6b61cf","abstract_canon_sha256":"c6a6cad1d202c30fc9db8a367bbb01c5f741f0b47dd16aa67fc7cbd1bff664f7"},"schema_version":"1.0"},"canonical_sha256":"1b884ea3a19e4dbfe6f1abb82688ac588a08ac9e38d59e0dbba7d8db18a41055","source":{"kind":"arxiv","id":"1506.04651","version":3},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1506.04651","created_at":"2026-05-18T00:06:26Z"},{"alias_kind":"arxiv_version","alias_value":"1506.04651v3","created_at":"2026-05-18T00:06:26Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1506.04651","created_at":"2026-05-18T00:06:26Z"},{"alias_kind":"pith_short_12","alias_value":"DOEE5I5BTZG3","created_at":"2026-05-18T12:29:17Z"},{"alias_kind":"pith_short_16","alias_value":"DOEE5I5BTZG37ZXR","created_at":"2026-05-18T12:29:17Z"},{"alias_kind":"pith_short_8","alias_value":"DOEE5I5B","created_at":"2026-05-18T12:29:17Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2015:DOEE5I5BTZG37ZXRVO4CNCFMLC","target":"record","payload":{"canonical_record":{"source":{"id":"1506.04651","kind":"arxiv","version":3},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.NA","submitted_at":"2015-06-09T12:53:48Z","cross_cats_sorted":["cs.DC","math.AP","math.NA"],"title_canon_sha256":"9092ff04e5c1ad0008010db8956cdaeccc320d0c91a926f013e9f74dbd6b61cf","abstract_canon_sha256":"c6a6cad1d202c30fc9db8a367bbb01c5f741f0b47dd16aa67fc7cbd1bff664f7"},"schema_version":"1.0"},"canonical_sha256":"1b884ea3a19e4dbfe6f1abb82688ac588a08ac9e38d59e0dbba7d8db18a41055","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:06:26.868895Z","signature_b64":"JYSvyTkfMOiagYMf5ieTQe32cAWgY0VbIMZzcwL9eEZ7hXYoWqn2w/9HvjaR9jVH0DEHsAwPQI8+9A6IBh0/BA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"1b884ea3a19e4dbfe6f1abb82688ac588a08ac9e38d59e0dbba7d8db18a41055","last_reissued_at":"2026-05-18T00:06:26.868174Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:06:26.868174Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1506.04651","source_version":3,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T00:06:26Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"VTInY5vpRuHY9ON26kwy94mfMXX2Ot5GdAPL1mkdlS1OVZQyvaO7gnd1OpzDi2Nuuvrkc04pT+nzykmGEK8+Ag==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-06T16:55:07.992140Z"},"content_sha256":"ac39de0eeeb4cc5dffd6d07bfd0c8efde6d2d8ab6294657275b6325f1e8767b0","schema_version":"1.0","event_id":"sha256:ac39de0eeeb4cc5dffd6d07bfd0c8efde6d2d8ab6294657275b6325f1e8767b0"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2015:DOEE5I5BTZG37ZXRVO4CNCFMLC","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Task-based adaptive multiresolution for time-space multi-scale reaction-diffusion systems on multi-core architectures","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cs.DC","math.AP","math.NA"],"primary_cat":"cs.NA","authors_text":"Marc Massot (EM2C), Max Duarte (LBNL), St\\'ephane Descombes, Thierry Dumont (ICJ), Thomas Guillet, Violaine Louvet (ICJ)","submitted_at":"2015-06-09T12:53:48Z","abstract_excerpt":"A new solver featuring time-space adaptation and error control has been recently introduced to tackle the numerical solution of stiff reaction-diffusion systems. Based on operator splitting, finite volume adaptive multiresolution and high order time integrators with specific stability properties for each operator, this strategy yields high computational efficiency for large multidimensional computations on standard architectures such as powerful workstations. However, the data structure of the original implementation, based on trees of pointers, provides limited opportunities for efficiency en"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1506.04651","kind":"arxiv","version":3},"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":"2026-05-18T00:06:26Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"I4PwkEpstym0I/hmG6Y59Phfy5o8uSoxdACCX/DRPhTn6DdID4lnR1NJSsFkgECWmlgcep1RxTZS9enFuvVxCQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-06T16:55:07.992538Z"},"content_sha256":"dd40a29c4502ee8ec2fef5b2f5d27da20f6b383cbf855a5ed18faeb88fc0fda8","schema_version":"1.0","event_id":"sha256:dd40a29c4502ee8ec2fef5b2f5d27da20f6b383cbf855a5ed18faeb88fc0fda8"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/DOEE5I5BTZG37ZXRVO4CNCFMLC/bundle.json","state_url":"https://pith.science/pith/DOEE5I5BTZG37ZXRVO4CNCFMLC/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/DOEE5I5BTZG37ZXRVO4CNCFMLC/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":"2026-06-06T16:55:07Z","links":{"resolver":"https://pith.science/pith/DOEE5I5BTZG37ZXRVO4CNCFMLC","bundle":"https://pith.science/pith/DOEE5I5BTZG37ZXRVO4CNCFMLC/bundle.json","state":"https://pith.science/pith/DOEE5I5BTZG37ZXRVO4CNCFMLC/state.json","well_known_bundle":"https://pith.science/.well-known/pith/DOEE5I5BTZG37ZXRVO4CNCFMLC/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2015:DOEE5I5BTZG37ZXRVO4CNCFMLC","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":"c6a6cad1d202c30fc9db8a367bbb01c5f741f0b47dd16aa67fc7cbd1bff664f7","cross_cats_sorted":["cs.DC","math.AP","math.NA"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.NA","submitted_at":"2015-06-09T12:53:48Z","title_canon_sha256":"9092ff04e5c1ad0008010db8956cdaeccc320d0c91a926f013e9f74dbd6b61cf"},"schema_version":"1.0","source":{"id":"1506.04651","kind":"arxiv","version":3}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1506.04651","created_at":"2026-05-18T00:06:26Z"},{"alias_kind":"arxiv_version","alias_value":"1506.04651v3","created_at":"2026-05-18T00:06:26Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1506.04651","created_at":"2026-05-18T00:06:26Z"},{"alias_kind":"pith_short_12","alias_value":"DOEE5I5BTZG3","created_at":"2026-05-18T12:29:17Z"},{"alias_kind":"pith_short_16","alias_value":"DOEE5I5BTZG37ZXR","created_at":"2026-05-18T12:29:17Z"},{"alias_kind":"pith_short_8","alias_value":"DOEE5I5B","created_at":"2026-05-18T12:29:17Z"}],"graph_snapshots":[{"event_id":"sha256:dd40a29c4502ee8ec2fef5b2f5d27da20f6b383cbf855a5ed18faeb88fc0fda8","target":"graph","created_at":"2026-05-18T00:06:26Z","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":"A new solver featuring time-space adaptation and error control has been recently introduced to tackle the numerical solution of stiff reaction-diffusion systems. Based on operator splitting, finite volume adaptive multiresolution and high order time integrators with specific stability properties for each operator, this strategy yields high computational efficiency for large multidimensional computations on standard architectures such as powerful workstations. However, the data structure of the original implementation, based on trees of pointers, provides limited opportunities for efficiency en","authors_text":"Marc Massot (EM2C), Max Duarte (LBNL), St\\'ephane Descombes, Thierry Dumont (ICJ), Thomas Guillet, Violaine Louvet (ICJ)","cross_cats":["cs.DC","math.AP","math.NA"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.NA","submitted_at":"2015-06-09T12:53:48Z","title":"Task-based adaptive multiresolution for time-space multi-scale reaction-diffusion systems on multi-core architectures"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1506.04651","kind":"arxiv","version":3},"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:ac39de0eeeb4cc5dffd6d07bfd0c8efde6d2d8ab6294657275b6325f1e8767b0","target":"record","created_at":"2026-05-18T00:06:26Z","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":"c6a6cad1d202c30fc9db8a367bbb01c5f741f0b47dd16aa67fc7cbd1bff664f7","cross_cats_sorted":["cs.DC","math.AP","math.NA"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.NA","submitted_at":"2015-06-09T12:53:48Z","title_canon_sha256":"9092ff04e5c1ad0008010db8956cdaeccc320d0c91a926f013e9f74dbd6b61cf"},"schema_version":"1.0","source":{"id":"1506.04651","kind":"arxiv","version":3}},"canonical_sha256":"1b884ea3a19e4dbfe6f1abb82688ac588a08ac9e38d59e0dbba7d8db18a41055","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"1b884ea3a19e4dbfe6f1abb82688ac588a08ac9e38d59e0dbba7d8db18a41055","first_computed_at":"2026-05-18T00:06:26.868174Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:06:26.868174Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"JYSvyTkfMOiagYMf5ieTQe32cAWgY0VbIMZzcwL9eEZ7hXYoWqn2w/9HvjaR9jVH0DEHsAwPQI8+9A6IBh0/BA==","signature_status":"signed_v1","signed_at":"2026-05-18T00:06:26.868895Z","signed_message":"canonical_sha256_bytes"},"source_id":"1506.04651","source_kind":"arxiv","source_version":3}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:ac39de0eeeb4cc5dffd6d07bfd0c8efde6d2d8ab6294657275b6325f1e8767b0","sha256:dd40a29c4502ee8ec2fef5b2f5d27da20f6b383cbf855a5ed18faeb88fc0fda8"],"state_sha256":"82a7e19a240eac9f1f0bd70ed148f4f2f9cae430912df4bbeb185a486f0e9d04"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"19ZAxMWVCWf0yoJs+8ZWqciZki5Q3puGwkUpWclpzo4Z0053juEw21LrD4Ycq6mImPClLlDeLZtVOM8XmKMfDw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-06T16:55:07.994988Z","bundle_sha256":"72cb0b85a5ee3e7063d7a1955a9d621851c43c6d8a58e0ac663e251b19eddc52"}}