{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2018:4465SCUZSPZVGFDWWQEK3NH3BB","short_pith_number":"pith:4465SCUZ","canonical_record":{"source":{"id":"1801.06592","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"math.NA","submitted_at":"2018-01-19T22:50:00Z","cross_cats_sorted":["physics.comp-ph"],"title_canon_sha256":"014e7d02f8910d0f72452413d2b7b3bfa9cdc7f138bd3a1073a50a17c9672f94","abstract_canon_sha256":"6eb0bbf3f0521f5862d351058b52b693d052ffc312883d57b68490b8dee70f0b"},"schema_version":"1.0"},"canonical_sha256":"e73dd90a9993f3531476b408adb4fb0868f3245fd77130df3769714afe06ec67","source":{"kind":"arxiv","id":"1801.06592","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1801.06592","created_at":"2026-05-17T23:57:42Z"},{"alias_kind":"arxiv_version","alias_value":"1801.06592v1","created_at":"2026-05-17T23:57:42Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1801.06592","created_at":"2026-05-17T23:57:42Z"},{"alias_kind":"pith_short_12","alias_value":"4465SCUZSPZV","created_at":"2026-05-18T12:32:05Z"},{"alias_kind":"pith_short_16","alias_value":"4465SCUZSPZVGFDW","created_at":"2026-05-18T12:32:05Z"},{"alias_kind":"pith_short_8","alias_value":"4465SCUZ","created_at":"2026-05-18T12:32:05Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2018:4465SCUZSPZVGFDWWQEK3NH3BB","target":"record","payload":{"canonical_record":{"source":{"id":"1801.06592","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"math.NA","submitted_at":"2018-01-19T22:50:00Z","cross_cats_sorted":["physics.comp-ph"],"title_canon_sha256":"014e7d02f8910d0f72452413d2b7b3bfa9cdc7f138bd3a1073a50a17c9672f94","abstract_canon_sha256":"6eb0bbf3f0521f5862d351058b52b693d052ffc312883d57b68490b8dee70f0b"},"schema_version":"1.0"},"canonical_sha256":"e73dd90a9993f3531476b408adb4fb0868f3245fd77130df3769714afe06ec67","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-17T23:57:42.388614Z","signature_b64":"w+hUyxXWX6lq96QHNDHrPlee6J+A6pOJXlQI4BUV79QwKihvBz6XpAnn73/tadjnPiWdC3GFsfVef+77N32NAw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"e73dd90a9993f3531476b408adb4fb0868f3245fd77130df3769714afe06ec67","last_reissued_at":"2026-05-17T23:57:42.388184Z","signature_status":"signed_v1","first_computed_at":"2026-05-17T23:57:42.388184Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1801.06592","source_version":1,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-17T23:57:42Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"A0TDM32XVXJX/dKlxs3CGVQF2qg1LGJSgPsqUtozke4C6ZbgkXqqDyCU7KhXXqG9IA2piG9DthW9To839eE7Dg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-27T22:40:01.780799Z"},"content_sha256":"4cc78e82f56bf858021f4aeac04ac11b5c8fd0864dc02328b43e1f4668188573","schema_version":"1.0","event_id":"sha256:4cc78e82f56bf858021f4aeac04ac11b5c8fd0864dc02328b43e1f4668188573"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2018:4465SCUZSPZVGFDWWQEK3NH3BB","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"A divergence-free semi-implicit finite volume scheme for ideal, viscous and resistive magnetohydrodynamics","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["physics.comp-ph"],"primary_cat":"math.NA","authors_text":"Dinshaw S. Balsara, Francesco Fambri, Maurizio Tavelli, Michael Dumbser","submitted_at":"2018-01-19T22:50:00Z","abstract_excerpt":"In this paper we present a novel pressure-based semi-implicit finite volume solver for the equations of compressible ideal, viscous and resistive magnetohydrodynamics (MHD). The new method is conservative for mass, momentum and total energy and in multiple space dimensions it is constructed in such a way as to respect the divergence-free condition of the magnetic field exactly, also in the presence of resistive effects. This is possible via the use of multi-dimensional Riemann solvers on an appropriately staggered grid for the time evolution of the magnetic field and a double curl formulation "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1801.06592","kind":"arxiv","version":1},"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":"2026-05-17T23:57:42Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"kzLzI99JPdICgtSXdX1ognFnxF7jr/cN80C9CFenoT4qX98h39LlBVvdxdyHSKnnyU8XDNRsyzgRF8uIJv/IAg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-27T22:40:01.781491Z"},"content_sha256":"e06f42a809f04805cf4b3f0a8e8fed220ad95ab5fefceac91c119ea67241d5df","schema_version":"1.0","event_id":"sha256:e06f42a809f04805cf4b3f0a8e8fed220ad95ab5fefceac91c119ea67241d5df"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/4465SCUZSPZVGFDWWQEK3NH3BB/bundle.json","state_url":"https://pith.science/pith/4465SCUZSPZVGFDWWQEK3NH3BB/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/4465SCUZSPZVGFDWWQEK3NH3BB/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":"2026-05-27T22:40:01Z","links":{"resolver":"https://pith.science/pith/4465SCUZSPZVGFDWWQEK3NH3BB","bundle":"https://pith.science/pith/4465SCUZSPZVGFDWWQEK3NH3BB/bundle.json","state":"https://pith.science/pith/4465SCUZSPZVGFDWWQEK3NH3BB/state.json","well_known_bundle":"https://pith.science/.well-known/pith/4465SCUZSPZVGFDWWQEK3NH3BB/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2018:4465SCUZSPZVGFDWWQEK3NH3BB","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":"6eb0bbf3f0521f5862d351058b52b693d052ffc312883d57b68490b8dee70f0b","cross_cats_sorted":["physics.comp-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"math.NA","submitted_at":"2018-01-19T22:50:00Z","title_canon_sha256":"014e7d02f8910d0f72452413d2b7b3bfa9cdc7f138bd3a1073a50a17c9672f94"},"schema_version":"1.0","source":{"id":"1801.06592","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1801.06592","created_at":"2026-05-17T23:57:42Z"},{"alias_kind":"arxiv_version","alias_value":"1801.06592v1","created_at":"2026-05-17T23:57:42Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1801.06592","created_at":"2026-05-17T23:57:42Z"},{"alias_kind":"pith_short_12","alias_value":"4465SCUZSPZV","created_at":"2026-05-18T12:32:05Z"},{"alias_kind":"pith_short_16","alias_value":"4465SCUZSPZVGFDW","created_at":"2026-05-18T12:32:05Z"},{"alias_kind":"pith_short_8","alias_value":"4465SCUZ","created_at":"2026-05-18T12:32:05Z"}],"graph_snapshots":[{"event_id":"sha256:e06f42a809f04805cf4b3f0a8e8fed220ad95ab5fefceac91c119ea67241d5df","target":"graph","created_at":"2026-05-17T23:57:42Z","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":"In this paper we present a novel pressure-based semi-implicit finite volume solver for the equations of compressible ideal, viscous and resistive magnetohydrodynamics (MHD). The new method is conservative for mass, momentum and total energy and in multiple space dimensions it is constructed in such a way as to respect the divergence-free condition of the magnetic field exactly, also in the presence of resistive effects. This is possible via the use of multi-dimensional Riemann solvers on an appropriately staggered grid for the time evolution of the magnetic field and a double curl formulation ","authors_text":"Dinshaw S. Balsara, Francesco Fambri, Maurizio Tavelli, Michael Dumbser","cross_cats":["physics.comp-ph"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"math.NA","submitted_at":"2018-01-19T22:50:00Z","title":"A divergence-free semi-implicit finite volume scheme for ideal, viscous and resistive magnetohydrodynamics"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1801.06592","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":"sha256:4cc78e82f56bf858021f4aeac04ac11b5c8fd0864dc02328b43e1f4668188573","target":"record","created_at":"2026-05-17T23:57:42Z","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":"6eb0bbf3f0521f5862d351058b52b693d052ffc312883d57b68490b8dee70f0b","cross_cats_sorted":["physics.comp-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"math.NA","submitted_at":"2018-01-19T22:50:00Z","title_canon_sha256":"014e7d02f8910d0f72452413d2b7b3bfa9cdc7f138bd3a1073a50a17c9672f94"},"schema_version":"1.0","source":{"id":"1801.06592","kind":"arxiv","version":1}},"canonical_sha256":"e73dd90a9993f3531476b408adb4fb0868f3245fd77130df3769714afe06ec67","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"e73dd90a9993f3531476b408adb4fb0868f3245fd77130df3769714afe06ec67","first_computed_at":"2026-05-17T23:57:42.388184Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-17T23:57:42.388184Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"w+hUyxXWX6lq96QHNDHrPlee6J+A6pOJXlQI4BUV79QwKihvBz6XpAnn73/tadjnPiWdC3GFsfVef+77N32NAw==","signature_status":"signed_v1","signed_at":"2026-05-17T23:57:42.388614Z","signed_message":"canonical_sha256_bytes"},"source_id":"1801.06592","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:4cc78e82f56bf858021f4aeac04ac11b5c8fd0864dc02328b43e1f4668188573","sha256:e06f42a809f04805cf4b3f0a8e8fed220ad95ab5fefceac91c119ea67241d5df"],"state_sha256":"7abf32461aa6a7f043c0d4a30ce438a6907bc6bf4abf3aaadecc6fabaaf8718b"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"R5M1ZifX8sAKu8Sts6Skc0A4HKNzOfamegSDDN53V5Rjk4V51x2ehwF6+mbtonfCmsGHu8UjLEnPz6e79F1DBw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-27T22:40:01.784228Z","bundle_sha256":"bcb8529ac20212ebde27de8e1820e8612faed2f0856072db5acf2b940a95ce8c"}}