{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2019:OEN6YFWR4F3IX7VAQRXJADKVZI","short_pith_number":"pith:OEN6YFWR","canonical_record":{"source":{"id":"1901.07380","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.flu-dyn","submitted_at":"2019-01-17T22:15:20Z","cross_cats_sorted":[],"title_canon_sha256":"c816dfc11bd2621cbb565713c17f984b95963334b6ab33927ce642dbed12b3b1","abstract_canon_sha256":"cdde622f305aadd2a968b8d936b7c9a40153d0360c6cf25dab0df54d17470413"},"schema_version":"1.0"},"canonical_sha256":"711bec16d1e1768bfea0846e900d55ca1b7f463f9939a10bc1f724827f034032","source":{"kind":"arxiv","id":"1901.07380","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1901.07380","created_at":"2026-05-17T23:55:47Z"},{"alias_kind":"arxiv_version","alias_value":"1901.07380v1","created_at":"2026-05-17T23:55:47Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1901.07380","created_at":"2026-05-17T23:55:47Z"},{"alias_kind":"pith_short_12","alias_value":"OEN6YFWR4F3I","created_at":"2026-05-18T12:33:24Z"},{"alias_kind":"pith_short_16","alias_value":"OEN6YFWR4F3IX7VA","created_at":"2026-05-18T12:33:24Z"},{"alias_kind":"pith_short_8","alias_value":"OEN6YFWR","created_at":"2026-05-18T12:33:24Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2019:OEN6YFWR4F3IX7VAQRXJADKVZI","target":"record","payload":{"canonical_record":{"source":{"id":"1901.07380","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.flu-dyn","submitted_at":"2019-01-17T22:15:20Z","cross_cats_sorted":[],"title_canon_sha256":"c816dfc11bd2621cbb565713c17f984b95963334b6ab33927ce642dbed12b3b1","abstract_canon_sha256":"cdde622f305aadd2a968b8d936b7c9a40153d0360c6cf25dab0df54d17470413"},"schema_version":"1.0"},"canonical_sha256":"711bec16d1e1768bfea0846e900d55ca1b7f463f9939a10bc1f724827f034032","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-17T23:55:47.123818Z","signature_b64":"WNKI0hf0+f0muzbGzfdXpXrhBGec3daRy+xwrsvnoo/QfSexNBZPfGVyfRX3yyR9yLfxpcgDr9lArwpKvGL4Bg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"711bec16d1e1768bfea0846e900d55ca1b7f463f9939a10bc1f724827f034032","last_reissued_at":"2026-05-17T23:55:47.123372Z","signature_status":"signed_v1","first_computed_at":"2026-05-17T23:55:47.123372Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1901.07380","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":"2026-05-17T23:55:47Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"MV/gc3iOMiK/6+PoUZpBE86ZGkohwzlyIPMgPr5B9i3WU/9MtXQCRwPOHeZkSa3QZNYt1vGgGS/kv+jTz6s3AA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-07T05:53:10.220039Z"},"content_sha256":"4b48a1b3fcc12e93a08f921165b8e664853049c4a36c1a5c1f9dfa427ea3bf2e","schema_version":"1.0","event_id":"sha256:4b48a1b3fcc12e93a08f921165b8e664853049c4a36c1a5c1f9dfa427ea3bf2e"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2019:OEN6YFWR4F3IX7VAQRXJADKVZI","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"A crisis for the V&V of turbulence simulations","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"physics.flu-dyn","authors_text":"Baolian Cheng, David H. Sharp, James Glimm, Tulin Kaman","submitted_at":"2019-01-17T22:15:20Z","abstract_excerpt":"Three very different algorithms have been proposed for solution of the Rayleigh-Taylor turbulent mixing problem. They are based upon three different physical principles governing the Euler equations for fluid flow, which serve to complete these underspecified equations by selection of the physically relevant solution from among the many otherwise nonunique solutions of these equations. The disputed physical principle is the admissibility condition which selects the physically meaningful solution from among the myriad of nonphysical solutions. The three different algorithms, expressing the thre"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1901.07380","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":"2026-05-17T23:55:47Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"BwWlUnUiQjcrumogyMi9mPA+yYMUQBO2/5O+J6PSpBwKIoM+oAZrOf5IeY664/S8KXIq1JZl/AwEUcsYmF8LDQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-07T05:53:10.220599Z"},"content_sha256":"fc6845c3cd0bd27ce62de494320e0eff6026be2ad204ec527106561386878829","schema_version":"1.0","event_id":"sha256:fc6845c3cd0bd27ce62de494320e0eff6026be2ad204ec527106561386878829"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/OEN6YFWR4F3IX7VAQRXJADKVZI/bundle.json","state_url":"https://pith.science/pith/OEN6YFWR4F3IX7VAQRXJADKVZI/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/OEN6YFWR4F3IX7VAQRXJADKVZI/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":"2026-06-07T05:53:10Z","links":{"resolver":"https://pith.science/pith/OEN6YFWR4F3IX7VAQRXJADKVZI","bundle":"https://pith.science/pith/OEN6YFWR4F3IX7VAQRXJADKVZI/bundle.json","state":"https://pith.science/pith/OEN6YFWR4F3IX7VAQRXJADKVZI/state.json","well_known_bundle":"https://pith.science/.well-known/pith/OEN6YFWR4F3IX7VAQRXJADKVZI/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2019:OEN6YFWR4F3IX7VAQRXJADKVZI","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":"cdde622f305aadd2a968b8d936b7c9a40153d0360c6cf25dab0df54d17470413","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.flu-dyn","submitted_at":"2019-01-17T22:15:20Z","title_canon_sha256":"c816dfc11bd2621cbb565713c17f984b95963334b6ab33927ce642dbed12b3b1"},"schema_version":"1.0","source":{"id":"1901.07380","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1901.07380","created_at":"2026-05-17T23:55:47Z"},{"alias_kind":"arxiv_version","alias_value":"1901.07380v1","created_at":"2026-05-17T23:55:47Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1901.07380","created_at":"2026-05-17T23:55:47Z"},{"alias_kind":"pith_short_12","alias_value":"OEN6YFWR4F3I","created_at":"2026-05-18T12:33:24Z"},{"alias_kind":"pith_short_16","alias_value":"OEN6YFWR4F3IX7VA","created_at":"2026-05-18T12:33:24Z"},{"alias_kind":"pith_short_8","alias_value":"OEN6YFWR","created_at":"2026-05-18T12:33:24Z"}],"graph_snapshots":[{"event_id":"sha256:fc6845c3cd0bd27ce62de494320e0eff6026be2ad204ec527106561386878829","target":"graph","created_at":"2026-05-17T23:55:47Z","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":"Three very different algorithms have been proposed for solution of the Rayleigh-Taylor turbulent mixing problem. They are based upon three different physical principles governing the Euler equations for fluid flow, which serve to complete these underspecified equations by selection of the physically relevant solution from among the many otherwise nonunique solutions of these equations. The disputed physical principle is the admissibility condition which selects the physically meaningful solution from among the myriad of nonphysical solutions. The three different algorithms, expressing the thre","authors_text":"Baolian Cheng, David H. Sharp, James Glimm, Tulin Kaman","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.flu-dyn","submitted_at":"2019-01-17T22:15:20Z","title":"A crisis for the V&V of turbulence simulations"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1901.07380","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":"sha256:4b48a1b3fcc12e93a08f921165b8e664853049c4a36c1a5c1f9dfa427ea3bf2e","target":"record","created_at":"2026-05-17T23:55:47Z","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":"cdde622f305aadd2a968b8d936b7c9a40153d0360c6cf25dab0df54d17470413","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.flu-dyn","submitted_at":"2019-01-17T22:15:20Z","title_canon_sha256":"c816dfc11bd2621cbb565713c17f984b95963334b6ab33927ce642dbed12b3b1"},"schema_version":"1.0","source":{"id":"1901.07380","kind":"arxiv","version":1}},"canonical_sha256":"711bec16d1e1768bfea0846e900d55ca1b7f463f9939a10bc1f724827f034032","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"711bec16d1e1768bfea0846e900d55ca1b7f463f9939a10bc1f724827f034032","first_computed_at":"2026-05-17T23:55:47.123372Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-17T23:55:47.123372Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"WNKI0hf0+f0muzbGzfdXpXrhBGec3daRy+xwrsvnoo/QfSexNBZPfGVyfRX3yyR9yLfxpcgDr9lArwpKvGL4Bg==","signature_status":"signed_v1","signed_at":"2026-05-17T23:55:47.123818Z","signed_message":"canonical_sha256_bytes"},"source_id":"1901.07380","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:4b48a1b3fcc12e93a08f921165b8e664853049c4a36c1a5c1f9dfa427ea3bf2e","sha256:fc6845c3cd0bd27ce62de494320e0eff6026be2ad204ec527106561386878829"],"state_sha256":"3484f8cc3c8efa3d2ea477eaac101a19fb42b9154f1d7813377e07c8766f2416"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"KfoGk9Jegtzl+L81ErbjgeJJaJl9bSjDHieOITLpxJ6cZhhCRVJWpKwZV8SIJYsE9cF7APA0Zf1qGLUYb7GhCg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-07T05:53:10.223815Z","bundle_sha256":"80d68ecd78455ab10d04777ff947cc1539d70e33a4f31d6083cee79744062916"}}