{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2014:VO6IHRN7H7WRYJDHO4FDPM2TSG","short_pith_number":"pith:VO6IHRN7","canonical_record":{"source":{"id":"1409.8289","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.IM","submitted_at":"2014-09-29T20:00:15Z","cross_cats_sorted":["astro-ph.SR","physics.comp-ph","physics.flu-dyn"],"title_canon_sha256":"ff58cd758491afc457ac0fe67cf1822c6e734aad82d5d0119c95ee0a90d763df","abstract_canon_sha256":"1957f1aa25c5a4af805604e80cd91c653e209271ef08c20f476c4ee255fbe3fc"},"schema_version":"1.0"},"canonical_sha256":"abbc83c5bf3fed1c2467770a37b35391b34fced99057551013620e84460f671a","source":{"kind":"arxiv","id":"1409.8289","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1409.8289","created_at":"2026-05-18T02:19:53Z"},{"alias_kind":"arxiv_version","alias_value":"1409.8289v2","created_at":"2026-05-18T02:19:53Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1409.8289","created_at":"2026-05-18T02:19:53Z"},{"alias_kind":"pith_short_12","alias_value":"VO6IHRN7H7WR","created_at":"2026-05-18T12:28:54Z"},{"alias_kind":"pith_short_16","alias_value":"VO6IHRN7H7WRYJDH","created_at":"2026-05-18T12:28:54Z"},{"alias_kind":"pith_short_8","alias_value":"VO6IHRN7","created_at":"2026-05-18T12:28:54Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2014:VO6IHRN7H7WRYJDHO4FDPM2TSG","target":"record","payload":{"canonical_record":{"source":{"id":"1409.8289","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.IM","submitted_at":"2014-09-29T20:00:15Z","cross_cats_sorted":["astro-ph.SR","physics.comp-ph","physics.flu-dyn"],"title_canon_sha256":"ff58cd758491afc457ac0fe67cf1822c6e734aad82d5d0119c95ee0a90d763df","abstract_canon_sha256":"1957f1aa25c5a4af805604e80cd91c653e209271ef08c20f476c4ee255fbe3fc"},"schema_version":"1.0"},"canonical_sha256":"abbc83c5bf3fed1c2467770a37b35391b34fced99057551013620e84460f671a","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:19:53.004429Z","signature_b64":"eUjDkV4Pnd4W2j0WTcK+Wk9y5Oe3r8Z8JHDf+SCrKJRRono6x92i+tP+DWDI/ijjGxwS8wwR0SF0WAgOXkBgCQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"abbc83c5bf3fed1c2467770a37b35391b34fced99057551013620e84460f671a","last_reissued_at":"2026-05-18T02:19:53.003690Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:19:53.003690Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1409.8289","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":"2026-05-18T02:19:53Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"aV2aQXZ/i0qD724lU0fGM9zGHx8zfXSh9QiWnPt4r0tDZaEc7LmKgOQU2TxqAnZm1GgvcOhdJrIXhAaPYfE0Dg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-12T03:56:40.115009Z"},"content_sha256":"a59fdf4d719ccbdf0eb590129fb2dc0e5721a5abbb66ed44a9d311e31395e336","schema_version":"1.0","event_id":"sha256:a59fdf4d719ccbdf0eb590129fb2dc0e5721a5abbb66ed44a9d311e31395e336"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2014:VO6IHRN7H7WRYJDHO4FDPM2TSG","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"New numerical solver for flows at various Mach numbers","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.SR","physics.comp-ph","physics.flu-dyn"],"primary_cat":"astro-ph.IM","authors_text":"F. K. Roepke, F. Miczek, P. V. F. Edelmann","submitted_at":"2014-09-29T20:00:15Z","abstract_excerpt":"Many problems in stellar astrophysics feature flows at low Mach numbers. Conventional compressible hydrodynamics schemes frequently used in the field have been developed for the transonic regime and exhibit excessive numerical dissipation for these flows. While schemes were proposed that solve hydrodynamics strictly in the low Mach regime and thus restrict their applicability, we aim at developing a scheme that correctly operates in a wide range of Mach numbers. Based on an analysis of the asymptotic behavior of the Euler equations in the low Mach limit we propose a novel scheme that is able t"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1409.8289","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":"2026-05-18T02:19:53Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"JjwEIb6eHquZYroQdRfoHSiyD2FDY8x03Sos2DggAET+2iwrXWuxm/mx0x6C4t1vfx+INGKXfftMFMyiXYFoAQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-12T03:56:40.115746Z"},"content_sha256":"2b4c3fbad04b8be25724ea45c8d687bc13c0b53a76c11ae73e1f948846717ee9","schema_version":"1.0","event_id":"sha256:2b4c3fbad04b8be25724ea45c8d687bc13c0b53a76c11ae73e1f948846717ee9"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/VO6IHRN7H7WRYJDHO4FDPM2TSG/bundle.json","state_url":"https://pith.science/pith/VO6IHRN7H7WRYJDHO4FDPM2TSG/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/VO6IHRN7H7WRYJDHO4FDPM2TSG/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":"2026-06-12T03:56:40Z","links":{"resolver":"https://pith.science/pith/VO6IHRN7H7WRYJDHO4FDPM2TSG","bundle":"https://pith.science/pith/VO6IHRN7H7WRYJDHO4FDPM2TSG/bundle.json","state":"https://pith.science/pith/VO6IHRN7H7WRYJDHO4FDPM2TSG/state.json","well_known_bundle":"https://pith.science/.well-known/pith/VO6IHRN7H7WRYJDHO4FDPM2TSG/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2014:VO6IHRN7H7WRYJDHO4FDPM2TSG","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":"1957f1aa25c5a4af805604e80cd91c653e209271ef08c20f476c4ee255fbe3fc","cross_cats_sorted":["astro-ph.SR","physics.comp-ph","physics.flu-dyn"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.IM","submitted_at":"2014-09-29T20:00:15Z","title_canon_sha256":"ff58cd758491afc457ac0fe67cf1822c6e734aad82d5d0119c95ee0a90d763df"},"schema_version":"1.0","source":{"id":"1409.8289","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1409.8289","created_at":"2026-05-18T02:19:53Z"},{"alias_kind":"arxiv_version","alias_value":"1409.8289v2","created_at":"2026-05-18T02:19:53Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1409.8289","created_at":"2026-05-18T02:19:53Z"},{"alias_kind":"pith_short_12","alias_value":"VO6IHRN7H7WR","created_at":"2026-05-18T12:28:54Z"},{"alias_kind":"pith_short_16","alias_value":"VO6IHRN7H7WRYJDH","created_at":"2026-05-18T12:28:54Z"},{"alias_kind":"pith_short_8","alias_value":"VO6IHRN7","created_at":"2026-05-18T12:28:54Z"}],"graph_snapshots":[{"event_id":"sha256:2b4c3fbad04b8be25724ea45c8d687bc13c0b53a76c11ae73e1f948846717ee9","target":"graph","created_at":"2026-05-18T02:19:53Z","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":"Many problems in stellar astrophysics feature flows at low Mach numbers. Conventional compressible hydrodynamics schemes frequently used in the field have been developed for the transonic regime and exhibit excessive numerical dissipation for these flows. While schemes were proposed that solve hydrodynamics strictly in the low Mach regime and thus restrict their applicability, we aim at developing a scheme that correctly operates in a wide range of Mach numbers. Based on an analysis of the asymptotic behavior of the Euler equations in the low Mach limit we propose a novel scheme that is able t","authors_text":"F. K. Roepke, F. Miczek, P. V. F. Edelmann","cross_cats":["astro-ph.SR","physics.comp-ph","physics.flu-dyn"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.IM","submitted_at":"2014-09-29T20:00:15Z","title":"New numerical solver for flows at various Mach numbers"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1409.8289","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:a59fdf4d719ccbdf0eb590129fb2dc0e5721a5abbb66ed44a9d311e31395e336","target":"record","created_at":"2026-05-18T02:19:53Z","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":"1957f1aa25c5a4af805604e80cd91c653e209271ef08c20f476c4ee255fbe3fc","cross_cats_sorted":["astro-ph.SR","physics.comp-ph","physics.flu-dyn"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.IM","submitted_at":"2014-09-29T20:00:15Z","title_canon_sha256":"ff58cd758491afc457ac0fe67cf1822c6e734aad82d5d0119c95ee0a90d763df"},"schema_version":"1.0","source":{"id":"1409.8289","kind":"arxiv","version":2}},"canonical_sha256":"abbc83c5bf3fed1c2467770a37b35391b34fced99057551013620e84460f671a","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"abbc83c5bf3fed1c2467770a37b35391b34fced99057551013620e84460f671a","first_computed_at":"2026-05-18T02:19:53.003690Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:19:53.003690Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"eUjDkV4Pnd4W2j0WTcK+Wk9y5Oe3r8Z8JHDf+SCrKJRRono6x92i+tP+DWDI/ijjGxwS8wwR0SF0WAgOXkBgCQ==","signature_status":"signed_v1","signed_at":"2026-05-18T02:19:53.004429Z","signed_message":"canonical_sha256_bytes"},"source_id":"1409.8289","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:a59fdf4d719ccbdf0eb590129fb2dc0e5721a5abbb66ed44a9d311e31395e336","sha256:2b4c3fbad04b8be25724ea45c8d687bc13c0b53a76c11ae73e1f948846717ee9"],"state_sha256":"4a3843466fd3244ce824e457646cc4f7846737cd6ce259086dcba0de325a8ebd"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"tkoQRhS06RGrjkLnYwGmCvJKwWl8Q1q9B4DC1WxrA5IbA/4QfQZJF1HNZ5bQ8Tfhk/y/n6Ms7HPa5fxYHTDDDw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-12T03:56:40.120571Z","bundle_sha256":"fc65603e96d8a8ac070e240820630d2e952dfae73bbe1a1b87c445c0c761468a"}}