{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2026:VHNTSIFIVNSK7UIN525NJJWV3M","short_pith_number":"pith:VHNTSIFI","canonical_record":{"source":{"id":"2606.22506","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"physics.plasm-ph","submitted_at":"2026-06-21T13:54:37Z","cross_cats_sorted":["astro-ph.HE","astro-ph.IM","physics.flu-dyn"],"title_canon_sha256":"ca49c3a36f1f656ffd614e5ca86ab0a9a596aed77ea7af02e1d64214e661506e","abstract_canon_sha256":"78e730605b45b91a9cfb00b9a9a7521e5c8fce1e04f580f9bdc7191d8a7b5972"},"schema_version":"1.0"},"canonical_sha256":"a9db3920a8ab64afd10deebad4a6d5db3883d64d0acf34b82d1ca93e48ac9ede","source":{"kind":"arxiv","id":"2606.22506","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2606.22506","created_at":"2026-06-23T02:13:40Z"},{"alias_kind":"arxiv_version","alias_value":"2606.22506v1","created_at":"2026-06-23T02:13:40Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2606.22506","created_at":"2026-06-23T02:13:40Z"},{"alias_kind":"pith_short_12","alias_value":"VHNTSIFIVNSK","created_at":"2026-06-23T02:13:40Z"},{"alias_kind":"pith_short_16","alias_value":"VHNTSIFIVNSK7UIN","created_at":"2026-06-23T02:13:40Z"},{"alias_kind":"pith_short_8","alias_value":"VHNTSIFI","created_at":"2026-06-23T02:13:40Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2026:VHNTSIFIVNSK7UIN525NJJWV3M","target":"record","payload":{"canonical_record":{"source":{"id":"2606.22506","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"physics.plasm-ph","submitted_at":"2026-06-21T13:54:37Z","cross_cats_sorted":["astro-ph.HE","astro-ph.IM","physics.flu-dyn"],"title_canon_sha256":"ca49c3a36f1f656ffd614e5ca86ab0a9a596aed77ea7af02e1d64214e661506e","abstract_canon_sha256":"78e730605b45b91a9cfb00b9a9a7521e5c8fce1e04f580f9bdc7191d8a7b5972"},"schema_version":"1.0"},"canonical_sha256":"a9db3920a8ab64afd10deebad4a6d5db3883d64d0acf34b82d1ca93e48ac9ede","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-06-23T02:13:40.358648Z","signature_b64":"rdTshURQx3oQ+292S2jgAPYFVajkh9LOauZq/EajkPtl8hMWUfWa2AS3qOfwIJI2shrkLy0Nfa6U+m1ZR1t4AA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"a9db3920a8ab64afd10deebad4a6d5db3883d64d0acf34b82d1ca93e48ac9ede","last_reissued_at":"2026-06-23T02:13:40.358283Z","signature_status":"signed_v1","first_computed_at":"2026-06-23T02:13:40.358283Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2606.22506","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":"2026-06-23T02:13:40Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"0nf75hBaYaMb/H6vsgXsyZ1xt4H0AzIrYSRmETmY/TcVtYkdLzC6b0q0J6b13Uj9s7jG3dnpziLbLQ42fs6hDw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-27T15:32:51.996667Z"},"content_sha256":"dc2bc14e80f854de6df6411e9873a0ddeb28f8b14f94149e535b74d59714e0c2","schema_version":"1.0","event_id":"sha256:dc2bc14e80f854de6df6411e9873a0ddeb28f8b14f94149e535b74d59714e0c2"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2026:VHNTSIFIVNSK7UIN525NJJWV3M","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Characterization of Numerical Dissipation in Simulations of Magnetohydrodynamic Turbulence","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":["astro-ph.HE","astro-ph.IM","physics.flu-dyn"],"primary_cat":"physics.plasm-ph","authors_text":"Bin Qiao, Yuyang Hua, Zhonghai Zhao","submitted_at":"2026-06-21T13:54:37Z","abstract_excerpt":"Comprehensive characterization of numerical dissipation is essential for high-fidelity simulations of magnetohydrodynamic (MHD) turbulence. In this work, we present an a posteriori framework for directly estimating numerical dissipation in MHD turbulence from simulation data without invoking a priori assumptions. Implemented in the open-source Python package PyMHD, the framework is applied to simulations of Alfv\\'enic turbulence, turbulent small-scale dynamos, and MRI-driven turbulence, yielding a systematic characterization of the anisotropy and spectral properties of numerical dissipation ac"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2606.22506","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2606.22506/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":"2026-06-23T02:13:40Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Mg+pSuyOKV5S5dhfUOvrpGWxNir79WgQd5ekQ8Wiw4VSi+stfF38C/6lVahVsXyNE97QuljXMYXabKnB4VoKAw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-27T15:32:51.997054Z"},"content_sha256":"32d37dbec8243611ae770dce330652b44a50cbf438279f4c4dd0ec4737b33360","schema_version":"1.0","event_id":"sha256:32d37dbec8243611ae770dce330652b44a50cbf438279f4c4dd0ec4737b33360"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/VHNTSIFIVNSK7UIN525NJJWV3M/bundle.json","state_url":"https://pith.science/pith/VHNTSIFIVNSK7UIN525NJJWV3M/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/VHNTSIFIVNSK7UIN525NJJWV3M/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":"2026-06-27T15:32:51Z","links":{"resolver":"https://pith.science/pith/VHNTSIFIVNSK7UIN525NJJWV3M","bundle":"https://pith.science/pith/VHNTSIFIVNSK7UIN525NJJWV3M/bundle.json","state":"https://pith.science/pith/VHNTSIFIVNSK7UIN525NJJWV3M/state.json","well_known_bundle":"https://pith.science/.well-known/pith/VHNTSIFIVNSK7UIN525NJJWV3M/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2026:VHNTSIFIVNSK7UIN525NJJWV3M","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":"78e730605b45b91a9cfb00b9a9a7521e5c8fce1e04f580f9bdc7191d8a7b5972","cross_cats_sorted":["astro-ph.HE","astro-ph.IM","physics.flu-dyn"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"physics.plasm-ph","submitted_at":"2026-06-21T13:54:37Z","title_canon_sha256":"ca49c3a36f1f656ffd614e5ca86ab0a9a596aed77ea7af02e1d64214e661506e"},"schema_version":"1.0","source":{"id":"2606.22506","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2606.22506","created_at":"2026-06-23T02:13:40Z"},{"alias_kind":"arxiv_version","alias_value":"2606.22506v1","created_at":"2026-06-23T02:13:40Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2606.22506","created_at":"2026-06-23T02:13:40Z"},{"alias_kind":"pith_short_12","alias_value":"VHNTSIFIVNSK","created_at":"2026-06-23T02:13:40Z"},{"alias_kind":"pith_short_16","alias_value":"VHNTSIFIVNSK7UIN","created_at":"2026-06-23T02:13:40Z"},{"alias_kind":"pith_short_8","alias_value":"VHNTSIFI","created_at":"2026-06-23T02:13:40Z"}],"graph_snapshots":[{"event_id":"sha256:32d37dbec8243611ae770dce330652b44a50cbf438279f4c4dd0ec4737b33360","target":"graph","created_at":"2026-06-23T02:13:40Z","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/2606.22506/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Comprehensive characterization of numerical dissipation is essential for high-fidelity simulations of magnetohydrodynamic (MHD) turbulence. In this work, we present an a posteriori framework for directly estimating numerical dissipation in MHD turbulence from simulation data without invoking a priori assumptions. Implemented in the open-source Python package PyMHD, the framework is applied to simulations of Alfv\\'enic turbulence, turbulent small-scale dynamos, and MRI-driven turbulence, yielding a systematic characterization of the anisotropy and spectral properties of numerical dissipation ac","authors_text":"Bin Qiao, Yuyang Hua, Zhonghai Zhao","cross_cats":["astro-ph.HE","astro-ph.IM","physics.flu-dyn"],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"physics.plasm-ph","submitted_at":"2026-06-21T13:54:37Z","title":"Characterization of Numerical Dissipation in Simulations of Magnetohydrodynamic Turbulence"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2606.22506","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:dc2bc14e80f854de6df6411e9873a0ddeb28f8b14f94149e535b74d59714e0c2","target":"record","created_at":"2026-06-23T02:13:40Z","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":"78e730605b45b91a9cfb00b9a9a7521e5c8fce1e04f580f9bdc7191d8a7b5972","cross_cats_sorted":["astro-ph.HE","astro-ph.IM","physics.flu-dyn"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"physics.plasm-ph","submitted_at":"2026-06-21T13:54:37Z","title_canon_sha256":"ca49c3a36f1f656ffd614e5ca86ab0a9a596aed77ea7af02e1d64214e661506e"},"schema_version":"1.0","source":{"id":"2606.22506","kind":"arxiv","version":1}},"canonical_sha256":"a9db3920a8ab64afd10deebad4a6d5db3883d64d0acf34b82d1ca93e48ac9ede","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"a9db3920a8ab64afd10deebad4a6d5db3883d64d0acf34b82d1ca93e48ac9ede","first_computed_at":"2026-06-23T02:13:40.358283Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-06-23T02:13:40.358283Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"rdTshURQx3oQ+292S2jgAPYFVajkh9LOauZq/EajkPtl8hMWUfWa2AS3qOfwIJI2shrkLy0Nfa6U+m1ZR1t4AA==","signature_status":"signed_v1","signed_at":"2026-06-23T02:13:40.358648Z","signed_message":"canonical_sha256_bytes"},"source_id":"2606.22506","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:dc2bc14e80f854de6df6411e9873a0ddeb28f8b14f94149e535b74d59714e0c2","sha256:32d37dbec8243611ae770dce330652b44a50cbf438279f4c4dd0ec4737b33360"],"state_sha256":"1f886db7a45cd18bbfba8a5e5ea90cf19d524e496e022b4362062d240126b445"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"8Wl1mGbDNfkPn1mYkGuAE2Pkho24lRS6V8cSCu6SvWltqW5AgYxaqbJkJTc9PcSEyVBcPTNa52jRJbLLS9AgBg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-27T15:32:51.999084Z","bundle_sha256":"597d32efe1cea9bd053527a81dff078dfe46414e89214d02d1d3926476c81817"}}