{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2025:ABN2TBK7CMOMZYY5SI422B3WQD","short_pith_number":"pith:ABN2TBK7","canonical_record":{"source":{"id":"2501.18525","kind":"arxiv","version":2},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"physics.flu-dyn","submitted_at":"2025-01-30T17:43:58Z","cross_cats_sorted":["astro-ph.CO"],"title_canon_sha256":"41fac78c24a48dc0a4cbf762f8d6fca0132cfb4d9936073ae958de654231e149","abstract_canon_sha256":"83d53d3d8aad4959b3c8ad3f6ee78cf2f93a215dce9bd8db02cc0bd4754ba251"},"schema_version":"1.0"},"canonical_sha256":"005ba9855f131ccce31d9239ad077680d96e024ea5166b838299f5e133d4d1f0","source":{"kind":"arxiv","id":"2501.18525","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2501.18525","created_at":"2026-07-05T10:49:13Z"},{"alias_kind":"arxiv_version","alias_value":"2501.18525v2","created_at":"2026-07-05T10:49:13Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2501.18525","created_at":"2026-07-05T10:49:13Z"},{"alias_kind":"pith_short_12","alias_value":"ABN2TBK7CMOM","created_at":"2026-07-05T10:49:13Z"},{"alias_kind":"pith_short_16","alias_value":"ABN2TBK7CMOMZYY5","created_at":"2026-07-05T10:49:13Z"},{"alias_kind":"pith_short_8","alias_value":"ABN2TBK7","created_at":"2026-07-05T10:49:13Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2025:ABN2TBK7CMOMZYY5SI422B3WQD","target":"record","payload":{"canonical_record":{"source":{"id":"2501.18525","kind":"arxiv","version":2},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"physics.flu-dyn","submitted_at":"2025-01-30T17:43:58Z","cross_cats_sorted":["astro-ph.CO"],"title_canon_sha256":"41fac78c24a48dc0a4cbf762f8d6fca0132cfb4d9936073ae958de654231e149","abstract_canon_sha256":"83d53d3d8aad4959b3c8ad3f6ee78cf2f93a215dce9bd8db02cc0bd4754ba251"},"schema_version":"1.0"},"canonical_sha256":"005ba9855f131ccce31d9239ad077680d96e024ea5166b838299f5e133d4d1f0","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T10:49:13.600912Z","signature_b64":"VMANxyHWkT793m6vLlfmXKKBDx7N+Tw+kk4y9sLljgjAsFvfNtHv3pbME641LpjNxjw5z0SnoeC1SUdmCBmRAw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"005ba9855f131ccce31d9239ad077680d96e024ea5166b838299f5e133d4d1f0","last_reissued_at":"2026-07-05T10:49:13.600463Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T10:49:13.600463Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2501.18525","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":"2026-07-05T10:49:13Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Z7oHMfbmKKTAtXuVzNcb47FybPeZEPiKAifOr3ELNGjH5ImwfMJyBUyR/pMlFr1KmfA7ZyLQ8c5jUALxs19lAA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-10T22:18:04.477216Z"},"content_sha256":"a20c4e4bb18c0e42a92dd58e003d752ec998bf2fc45be254130ff54871000e13","schema_version":"1.0","event_id":"sha256:a20c4e4bb18c0e42a92dd58e003d752ec998bf2fc45be254130ff54871000e13"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2025:ABN2TBK7CMOMZYY5SI422B3WQD","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Magnetically assisted vorticity production in decaying acoustic turbulence","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":["astro-ph.CO"],"primary_cat":"physics.flu-dyn","authors_text":"Axel Brandenburg, Evan Scannapieco","submitted_at":"2025-01-30T17:43:58Z","abstract_excerpt":"We study vorticity production in isothermal, subsonic, acoustic (nonvortical), and decaying turbulence due to the presence of magnetic fields. Using three-dimensional numerical simulations, we find that the resulting kinetic energy cascade follows the ordinary Kolmogorov phenomenology involving a constant spectral energy flux. The nondimensional prefactor for acoustic turbulence is larger than the standard Kolmogorov constant due to the inefficient dissipation of kinetic energy. We also find that the Lorentz force can drive vortical motions even when the initial field is uniform, by converting"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2501.18525","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2501.18525/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"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":"2026-07-05T10:49:13Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"i59aik+wy4iHe9S0zHLni+W/BDcrntlMq3NzKyJfV+/YRc53Pef3nrTlOAj/nYGtVHEZy4Ij/wWzty1sZSFBAA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-10T22:18:04.477711Z"},"content_sha256":"5fdfa898b8ee9faf54309eb791470c6723b773caaa1580486369d5aa0de53252","schema_version":"1.0","event_id":"sha256:5fdfa898b8ee9faf54309eb791470c6723b773caaa1580486369d5aa0de53252"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/ABN2TBK7CMOMZYY5SI422B3WQD/bundle.json","state_url":"https://pith.science/pith/ABN2TBK7CMOMZYY5SI422B3WQD/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/ABN2TBK7CMOMZYY5SI422B3WQD/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":"2026-08-10T22:18:04Z","links":{"resolver":"https://pith.science/pith/ABN2TBK7CMOMZYY5SI422B3WQD","bundle":"https://pith.science/pith/ABN2TBK7CMOMZYY5SI422B3WQD/bundle.json","state":"https://pith.science/pith/ABN2TBK7CMOMZYY5SI422B3WQD/state.json","well_known_bundle":"https://pith.science/.well-known/pith/ABN2TBK7CMOMZYY5SI422B3WQD/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2025:ABN2TBK7CMOMZYY5SI422B3WQD","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":"83d53d3d8aad4959b3c8ad3f6ee78cf2f93a215dce9bd8db02cc0bd4754ba251","cross_cats_sorted":["astro-ph.CO"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"physics.flu-dyn","submitted_at":"2025-01-30T17:43:58Z","title_canon_sha256":"41fac78c24a48dc0a4cbf762f8d6fca0132cfb4d9936073ae958de654231e149"},"schema_version":"1.0","source":{"id":"2501.18525","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2501.18525","created_at":"2026-07-05T10:49:13Z"},{"alias_kind":"arxiv_version","alias_value":"2501.18525v2","created_at":"2026-07-05T10:49:13Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2501.18525","created_at":"2026-07-05T10:49:13Z"},{"alias_kind":"pith_short_12","alias_value":"ABN2TBK7CMOM","created_at":"2026-07-05T10:49:13Z"},{"alias_kind":"pith_short_16","alias_value":"ABN2TBK7CMOMZYY5","created_at":"2026-07-05T10:49:13Z"},{"alias_kind":"pith_short_8","alias_value":"ABN2TBK7","created_at":"2026-07-05T10:49:13Z"}],"graph_snapshots":[{"event_id":"sha256:5fdfa898b8ee9faf54309eb791470c6723b773caaa1580486369d5aa0de53252","target":"graph","created_at":"2026-07-05T10:49:13Z","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"},"integrity":{"available":true,"clean":true,"detectors_run":[],"endpoint":"/pith/2501.18525/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We study vorticity production in isothermal, subsonic, acoustic (nonvortical), and decaying turbulence due to the presence of magnetic fields. Using three-dimensional numerical simulations, we find that the resulting kinetic energy cascade follows the ordinary Kolmogorov phenomenology involving a constant spectral energy flux. The nondimensional prefactor for acoustic turbulence is larger than the standard Kolmogorov constant due to the inefficient dissipation of kinetic energy. We also find that the Lorentz force can drive vortical motions even when the initial field is uniform, by converting","authors_text":"Axel Brandenburg, Evan Scannapieco","cross_cats":["astro-ph.CO"],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"physics.flu-dyn","submitted_at":"2025-01-30T17:43:58Z","title":"Magnetically assisted vorticity production in decaying acoustic turbulence"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2501.18525","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:a20c4e4bb18c0e42a92dd58e003d752ec998bf2fc45be254130ff54871000e13","target":"record","created_at":"2026-07-05T10:49:13Z","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":"83d53d3d8aad4959b3c8ad3f6ee78cf2f93a215dce9bd8db02cc0bd4754ba251","cross_cats_sorted":["astro-ph.CO"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"physics.flu-dyn","submitted_at":"2025-01-30T17:43:58Z","title_canon_sha256":"41fac78c24a48dc0a4cbf762f8d6fca0132cfb4d9936073ae958de654231e149"},"schema_version":"1.0","source":{"id":"2501.18525","kind":"arxiv","version":2}},"canonical_sha256":"005ba9855f131ccce31d9239ad077680d96e024ea5166b838299f5e133d4d1f0","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"005ba9855f131ccce31d9239ad077680d96e024ea5166b838299f5e133d4d1f0","first_computed_at":"2026-07-05T10:49:13.600463Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T10:49:13.600463Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"VMANxyHWkT793m6vLlfmXKKBDx7N+Tw+kk4y9sLljgjAsFvfNtHv3pbME641LpjNxjw5z0SnoeC1SUdmCBmRAw==","signature_status":"signed_v1","signed_at":"2026-07-05T10:49:13.600912Z","signed_message":"canonical_sha256_bytes"},"source_id":"2501.18525","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:a20c4e4bb18c0e42a92dd58e003d752ec998bf2fc45be254130ff54871000e13","sha256:5fdfa898b8ee9faf54309eb791470c6723b773caaa1580486369d5aa0de53252"],"state_sha256":"5707813783abc67998166c54b242deba616b33cff413acc87ad8537909423465"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"YUhn0QzP8fMaDIGw+1FVoy+xU929ccCKsbIuEL5yBkfxaOj4amXF2C+A8EOstvqgCKeFZLfjpaqLg0mfriUpBg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-10T22:18:04.482184Z","bundle_sha256":"1f6c400c4d076640b14f0251d62cca2d890a6fff350bbbc145401f2e2d9e8b0d"}}