{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2012:ARMACNYSLGIS3QTOHXFQ6CVBBS","short_pith_number":"pith:ARMACNYS","canonical_record":{"source":{"id":"1211.3166","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.flu-dyn","submitted_at":"2012-11-13T23:41:24Z","cross_cats_sorted":[],"title_canon_sha256":"490ef91b1764ae806b90c11fdb7661e4cb11f0cdf095f0ef2a7da2097b54d40c","abstract_canon_sha256":"38c9b6fae94f4d21a22ae9502196f186bf1eb9d8537648ef2bfab1eea8dc3d93"},"schema_version":"1.0"},"canonical_sha256":"045801371259912dc26e3dcb0f0aa10cb0b7041f82435bef667929b978b3ec1b","source":{"kind":"arxiv","id":"1211.3166","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1211.3166","created_at":"2026-05-18T01:53:15Z"},{"alias_kind":"arxiv_version","alias_value":"1211.3166v1","created_at":"2026-05-18T01:53:15Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1211.3166","created_at":"2026-05-18T01:53:15Z"},{"alias_kind":"pith_short_12","alias_value":"ARMACNYSLGIS","created_at":"2026-05-18T12:26:58Z"},{"alias_kind":"pith_short_16","alias_value":"ARMACNYSLGIS3QTO","created_at":"2026-05-18T12:26:58Z"},{"alias_kind":"pith_short_8","alias_value":"ARMACNYS","created_at":"2026-05-18T12:26:58Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2012:ARMACNYSLGIS3QTOHXFQ6CVBBS","target":"record","payload":{"canonical_record":{"source":{"id":"1211.3166","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.flu-dyn","submitted_at":"2012-11-13T23:41:24Z","cross_cats_sorted":[],"title_canon_sha256":"490ef91b1764ae806b90c11fdb7661e4cb11f0cdf095f0ef2a7da2097b54d40c","abstract_canon_sha256":"38c9b6fae94f4d21a22ae9502196f186bf1eb9d8537648ef2bfab1eea8dc3d93"},"schema_version":"1.0"},"canonical_sha256":"045801371259912dc26e3dcb0f0aa10cb0b7041f82435bef667929b978b3ec1b","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:53:15.906166Z","signature_b64":"2wqySQildTWTiRNkX0ndGLRXmLyvSWK8nlxBhINXSZ0A0JPnkrDQe/yriEETmIHk03CzIeKjGN57T8wd4EbLBg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"045801371259912dc26e3dcb0f0aa10cb0b7041f82435bef667929b978b3ec1b","last_reissued_at":"2026-05-18T01:53:15.905811Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:53:15.905811Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1211.3166","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":"2026-05-18T01:53:15Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"rY4aVOTqV37ZpKulP6Vm26cPV4LgAw7TqLREPCf2f/sQpNhyGdVLViNKXQ0in40Us62ww7x1hxBZRDGGvKJIDg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-08T13:37:07.317838Z"},"content_sha256":"27b20667abd6f1ba96612f6124730a675586ff0346077842364fe16ce3361224","schema_version":"1.0","event_id":"sha256:27b20667abd6f1ba96612f6124730a675586ff0346077842364fe16ce3361224"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2012:ARMACNYSLGIS3QTOHXFQ6CVBBS","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Helicity dynamics in stratified turbulence in the absence of forcing","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"physics.flu-dyn","authors_text":"A. Pouquet, C. Rorai, D. Rosenberg, P. D. Mininni","submitted_at":"2012-11-13T23:41:24Z","abstract_excerpt":"A numerical study of decaying stably-stratified flows is performed. Relatively high stratification and moderate Reynolds numbers are considered, and a particular emphasis is placed on the role of helicity (velocity-vorticity correlations). The problem is tackled by integrating the Boussinesq equations in a periodic cubical domain using different initial conditions: a non-helical Taylor-Green (TG) flow, a fully helical Beltrami (ABC) flow, and random flows with a tunable helicity. We show that for stratified ABC flows helicity undergoes a substantially slower decay than for unstratified ABC flo"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1211.3166","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":"2026-05-18T01:53:15Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"tVRSM6zClXBoyQRtsVhQ55XoWIdeRjHCIjXosZC2iRGjAeeDCfkPwFUXK0xS9I/OFbdlRpdE7dvbIxk4jxOmDg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-08T13:37:07.318205Z"},"content_sha256":"f6de6fbe7042967779c531d35e4cb7ce65fd2b9071fe7539ac884c047ed9b15c","schema_version":"1.0","event_id":"sha256:f6de6fbe7042967779c531d35e4cb7ce65fd2b9071fe7539ac884c047ed9b15c"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/ARMACNYSLGIS3QTOHXFQ6CVBBS/bundle.json","state_url":"https://pith.science/pith/ARMACNYSLGIS3QTOHXFQ6CVBBS/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/ARMACNYSLGIS3QTOHXFQ6CVBBS/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":"2026-06-08T13:37:07Z","links":{"resolver":"https://pith.science/pith/ARMACNYSLGIS3QTOHXFQ6CVBBS","bundle":"https://pith.science/pith/ARMACNYSLGIS3QTOHXFQ6CVBBS/bundle.json","state":"https://pith.science/pith/ARMACNYSLGIS3QTOHXFQ6CVBBS/state.json","well_known_bundle":"https://pith.science/.well-known/pith/ARMACNYSLGIS3QTOHXFQ6CVBBS/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2012:ARMACNYSLGIS3QTOHXFQ6CVBBS","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":"38c9b6fae94f4d21a22ae9502196f186bf1eb9d8537648ef2bfab1eea8dc3d93","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.flu-dyn","submitted_at":"2012-11-13T23:41:24Z","title_canon_sha256":"490ef91b1764ae806b90c11fdb7661e4cb11f0cdf095f0ef2a7da2097b54d40c"},"schema_version":"1.0","source":{"id":"1211.3166","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1211.3166","created_at":"2026-05-18T01:53:15Z"},{"alias_kind":"arxiv_version","alias_value":"1211.3166v1","created_at":"2026-05-18T01:53:15Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1211.3166","created_at":"2026-05-18T01:53:15Z"},{"alias_kind":"pith_short_12","alias_value":"ARMACNYSLGIS","created_at":"2026-05-18T12:26:58Z"},{"alias_kind":"pith_short_16","alias_value":"ARMACNYSLGIS3QTO","created_at":"2026-05-18T12:26:58Z"},{"alias_kind":"pith_short_8","alias_value":"ARMACNYS","created_at":"2026-05-18T12:26:58Z"}],"graph_snapshots":[{"event_id":"sha256:f6de6fbe7042967779c531d35e4cb7ce65fd2b9071fe7539ac884c047ed9b15c","target":"graph","created_at":"2026-05-18T01:53:15Z","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":"A numerical study of decaying stably-stratified flows is performed. Relatively high stratification and moderate Reynolds numbers are considered, and a particular emphasis is placed on the role of helicity (velocity-vorticity correlations). The problem is tackled by integrating the Boussinesq equations in a periodic cubical domain using different initial conditions: a non-helical Taylor-Green (TG) flow, a fully helical Beltrami (ABC) flow, and random flows with a tunable helicity. We show that for stratified ABC flows helicity undergoes a substantially slower decay than for unstratified ABC flo","authors_text":"A. Pouquet, C. Rorai, D. Rosenberg, P. D. Mininni","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.flu-dyn","submitted_at":"2012-11-13T23:41:24Z","title":"Helicity dynamics in stratified turbulence in the absence of forcing"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1211.3166","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":"sha256:27b20667abd6f1ba96612f6124730a675586ff0346077842364fe16ce3361224","target":"record","created_at":"2026-05-18T01:53:15Z","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":"38c9b6fae94f4d21a22ae9502196f186bf1eb9d8537648ef2bfab1eea8dc3d93","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.flu-dyn","submitted_at":"2012-11-13T23:41:24Z","title_canon_sha256":"490ef91b1764ae806b90c11fdb7661e4cb11f0cdf095f0ef2a7da2097b54d40c"},"schema_version":"1.0","source":{"id":"1211.3166","kind":"arxiv","version":1}},"canonical_sha256":"045801371259912dc26e3dcb0f0aa10cb0b7041f82435bef667929b978b3ec1b","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"045801371259912dc26e3dcb0f0aa10cb0b7041f82435bef667929b978b3ec1b","first_computed_at":"2026-05-18T01:53:15.905811Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:53:15.905811Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"2wqySQildTWTiRNkX0ndGLRXmLyvSWK8nlxBhINXSZ0A0JPnkrDQe/yriEETmIHk03CzIeKjGN57T8wd4EbLBg==","signature_status":"signed_v1","signed_at":"2026-05-18T01:53:15.906166Z","signed_message":"canonical_sha256_bytes"},"source_id":"1211.3166","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:27b20667abd6f1ba96612f6124730a675586ff0346077842364fe16ce3361224","sha256:f6de6fbe7042967779c531d35e4cb7ce65fd2b9071fe7539ac884c047ed9b15c"],"state_sha256":"d111574c9feeb2a46db5d9db466821597148bf2fe2fb3031a1b6813fe98c1676"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"3uaB19DgvVUNuoU5Yxfi42v4JWCaEzsVtMl4i/h1K8j4Jv9oEdov8xa+wZgXBUE+rJK9awBNEChbfNiolk7HCw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-08T13:37:07.320175Z","bundle_sha256":"e4dfba14d9b710e8d438131a2372fda695edfd6275fb1e9c44427800e257f23f"}}