{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2015:2HMUV3PKBW6YXMKWKYDYU2BTTH","short_pith_number":"pith:2HMUV3PK","canonical_record":{"source":{"id":"1508.07147","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2015-08-28T09:36:48Z","cross_cats_sorted":["physics.comp-ph"],"title_canon_sha256":"2e3d49f4cbad2dc6ae0ba0d24f03ccc2d94826314676a1081780e8ca93342130","abstract_canon_sha256":"5c9e463bafc1af3dd9c60b399329a8a7255f57cc8fdec1b7eea910ff012038ba"},"schema_version":"1.0"},"canonical_sha256":"d1d94aedea0dbd8bb15656078a683399ef3a3613d3ef8ea0f7a69ffd2af9d2c3","source":{"kind":"arxiv","id":"1508.07147","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1508.07147","created_at":"2026-05-18T01:02:45Z"},{"alias_kind":"arxiv_version","alias_value":"1508.07147v1","created_at":"2026-05-18T01:02:45Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1508.07147","created_at":"2026-05-18T01:02:45Z"},{"alias_kind":"pith_short_12","alias_value":"2HMUV3PKBW6Y","created_at":"2026-05-18T12:28:59Z"},{"alias_kind":"pith_short_16","alias_value":"2HMUV3PKBW6YXMKW","created_at":"2026-05-18T12:28:59Z"},{"alias_kind":"pith_short_8","alias_value":"2HMUV3PK","created_at":"2026-05-18T12:28:59Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2015:2HMUV3PKBW6YXMKWKYDYU2BTTH","target":"record","payload":{"canonical_record":{"source":{"id":"1508.07147","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2015-08-28T09:36:48Z","cross_cats_sorted":["physics.comp-ph"],"title_canon_sha256":"2e3d49f4cbad2dc6ae0ba0d24f03ccc2d94826314676a1081780e8ca93342130","abstract_canon_sha256":"5c9e463bafc1af3dd9c60b399329a8a7255f57cc8fdec1b7eea910ff012038ba"},"schema_version":"1.0"},"canonical_sha256":"d1d94aedea0dbd8bb15656078a683399ef3a3613d3ef8ea0f7a69ffd2af9d2c3","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:02:45.680304Z","signature_b64":"6cU2EWVZb+ahvPBQ6Kha0XoP6n1kJ8CG21eNAkHSzSzocHtW8DTLb+/hqqmXO2FlCxO958EccgHzSY44wBSgDA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"d1d94aedea0dbd8bb15656078a683399ef3a3613d3ef8ea0f7a69ffd2af9d2c3","last_reissued_at":"2026-05-18T01:02:45.679934Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:02:45.679934Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1508.07147","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":"2026-05-18T01:02:45Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"dKpzoypnWvYl6i2t4aBSGiAIfx58ZhOSsmsw0mh51bY75ICLqOWKmOPFrydoxL12Y6Psd+NsY+6EI4gh79cRBQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-02T12:31:04.076076Z"},"content_sha256":"09401e8b69d2b428ac504238d57215322544354e58500f4187613fe4bfa23eab","schema_version":"1.0","event_id":"sha256:09401e8b69d2b428ac504238d57215322544354e58500f4187613fe4bfa23eab"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2015:2HMUV3PKBW6YXMKWKYDYU2BTTH","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Solving 3D relativistic hydrodynamical problems with WENO discontinuous Galerkin methods","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["physics.comp-ph"],"primary_cat":"gr-qc","authors_text":"Andreas Weyhausen, Bernd Bruegmann, Marcus Bugner, Sebastiano Bernuzzi, Tim Dietrich","submitted_at":"2015-08-28T09:36:48Z","abstract_excerpt":"Discontinuous Galerkin (DG) methods coupled to WENO algorithms allow high order convergence for smooth problems and for the simulation of discontinuities and shocks. In this work, we investigate WENO-DG algorithms in the context of numerical general relativity, in particular for general relativistic hydrodynamics. We implement the standard WENO method at different orders, a compact (simple) WENO scheme, as well as an alternative subcell evolution algorithm. To evaluate the performance of the different numerical schemes, we study non-relativistic, special relativistic, and general relativistic "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1508.07147","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":"2026-05-18T01:02:45Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"I44A/ULkAGInJ4sWSRL9CUBkikL4Y15pTJrvWTMCD+UlyGRs3QTL+SfIfHZugTrK45LPvZxPsqFxQU8wMZgqAw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-02T12:31:04.076447Z"},"content_sha256":"e3915dc440925fb1754382b504e700e8664e51dc8eaf4e12c575a7dabf4b52e9","schema_version":"1.0","event_id":"sha256:e3915dc440925fb1754382b504e700e8664e51dc8eaf4e12c575a7dabf4b52e9"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/2HMUV3PKBW6YXMKWKYDYU2BTTH/bundle.json","state_url":"https://pith.science/pith/2HMUV3PKBW6YXMKWKYDYU2BTTH/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/2HMUV3PKBW6YXMKWKYDYU2BTTH/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":"2026-06-02T12:31:04Z","links":{"resolver":"https://pith.science/pith/2HMUV3PKBW6YXMKWKYDYU2BTTH","bundle":"https://pith.science/pith/2HMUV3PKBW6YXMKWKYDYU2BTTH/bundle.json","state":"https://pith.science/pith/2HMUV3PKBW6YXMKWKYDYU2BTTH/state.json","well_known_bundle":"https://pith.science/.well-known/pith/2HMUV3PKBW6YXMKWKYDYU2BTTH/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2015:2HMUV3PKBW6YXMKWKYDYU2BTTH","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":"5c9e463bafc1af3dd9c60b399329a8a7255f57cc8fdec1b7eea910ff012038ba","cross_cats_sorted":["physics.comp-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2015-08-28T09:36:48Z","title_canon_sha256":"2e3d49f4cbad2dc6ae0ba0d24f03ccc2d94826314676a1081780e8ca93342130"},"schema_version":"1.0","source":{"id":"1508.07147","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1508.07147","created_at":"2026-05-18T01:02:45Z"},{"alias_kind":"arxiv_version","alias_value":"1508.07147v1","created_at":"2026-05-18T01:02:45Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1508.07147","created_at":"2026-05-18T01:02:45Z"},{"alias_kind":"pith_short_12","alias_value":"2HMUV3PKBW6Y","created_at":"2026-05-18T12:28:59Z"},{"alias_kind":"pith_short_16","alias_value":"2HMUV3PKBW6YXMKW","created_at":"2026-05-18T12:28:59Z"},{"alias_kind":"pith_short_8","alias_value":"2HMUV3PK","created_at":"2026-05-18T12:28:59Z"}],"graph_snapshots":[{"event_id":"sha256:e3915dc440925fb1754382b504e700e8664e51dc8eaf4e12c575a7dabf4b52e9","target":"graph","created_at":"2026-05-18T01:02:45Z","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":"Discontinuous Galerkin (DG) methods coupled to WENO algorithms allow high order convergence for smooth problems and for the simulation of discontinuities and shocks. In this work, we investigate WENO-DG algorithms in the context of numerical general relativity, in particular for general relativistic hydrodynamics. We implement the standard WENO method at different orders, a compact (simple) WENO scheme, as well as an alternative subcell evolution algorithm. To evaluate the performance of the different numerical schemes, we study non-relativistic, special relativistic, and general relativistic ","authors_text":"Andreas Weyhausen, Bernd Bruegmann, Marcus Bugner, Sebastiano Bernuzzi, Tim Dietrich","cross_cats":["physics.comp-ph"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2015-08-28T09:36:48Z","title":"Solving 3D relativistic hydrodynamical problems with WENO discontinuous Galerkin methods"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1508.07147","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":"sha256:09401e8b69d2b428ac504238d57215322544354e58500f4187613fe4bfa23eab","target":"record","created_at":"2026-05-18T01:02:45Z","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":"5c9e463bafc1af3dd9c60b399329a8a7255f57cc8fdec1b7eea910ff012038ba","cross_cats_sorted":["physics.comp-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2015-08-28T09:36:48Z","title_canon_sha256":"2e3d49f4cbad2dc6ae0ba0d24f03ccc2d94826314676a1081780e8ca93342130"},"schema_version":"1.0","source":{"id":"1508.07147","kind":"arxiv","version":1}},"canonical_sha256":"d1d94aedea0dbd8bb15656078a683399ef3a3613d3ef8ea0f7a69ffd2af9d2c3","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"d1d94aedea0dbd8bb15656078a683399ef3a3613d3ef8ea0f7a69ffd2af9d2c3","first_computed_at":"2026-05-18T01:02:45.679934Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:02:45.679934Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"6cU2EWVZb+ahvPBQ6Kha0XoP6n1kJ8CG21eNAkHSzSzocHtW8DTLb+/hqqmXO2FlCxO958EccgHzSY44wBSgDA==","signature_status":"signed_v1","signed_at":"2026-05-18T01:02:45.680304Z","signed_message":"canonical_sha256_bytes"},"source_id":"1508.07147","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:09401e8b69d2b428ac504238d57215322544354e58500f4187613fe4bfa23eab","sha256:e3915dc440925fb1754382b504e700e8664e51dc8eaf4e12c575a7dabf4b52e9"],"state_sha256":"075889b17160f22d20462d11c2a00678ba668c7b3d227f67ac3f37cc40cc386b"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"WLor/9WrLs2qfgEW7v5XsDwra7Ld5i4IEKF2xZs1rqd26Rp9juk4urKrGy2dLz89GJIjLHXcaJiYUpLoOYKGAg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-02T12:31:04.078469Z","bundle_sha256":"f9fa55c62f0d43ac473c4294f7f2115e4cabc99be5ac94b4043206bf35391445"}}