{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:1999:K37KG3CAIXSDKMCICHJX2DIMEA","short_pith_number":"pith:K37KG3CA","canonical_record":{"source":{"id":"cond-mat/9911069","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"cond-mat.soft","submitted_at":"1999-11-04T21:11:09Z","cross_cats_sorted":["chao-dyn","cond-mat.dis-nn","cond-mat.stat-mech","nlin.CD","nlin.PS","patt-sol"],"title_canon_sha256":"ea5ffe7befeda67f61f4dda535c14afbc9ef42471bf260df171b8081f9764cf9","abstract_canon_sha256":"11e40e698efce5707182362be9c18f3048c07fb2f7e7184ef01c8bab538c965a"},"schema_version":"1.0"},"canonical_sha256":"56fea36c4045e435304811d37d0d0c2015b2ad06e263bcd96220548c40743f10","source":{"kind":"arxiv","id":"cond-mat/9911069","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"cond-mat/9911069","created_at":"2026-05-18T01:07:04Z"},{"alias_kind":"arxiv_version","alias_value":"cond-mat/9911069v1","created_at":"2026-05-18T01:07:04Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.cond-mat/9911069","created_at":"2026-05-18T01:07:04Z"},{"alias_kind":"pith_short_12","alias_value":"K37KG3CAIXSD","created_at":"2026-05-18T12:25:49Z"},{"alias_kind":"pith_short_16","alias_value":"K37KG3CAIXSDKMCI","created_at":"2026-05-18T12:25:49Z"},{"alias_kind":"pith_short_8","alias_value":"K37KG3CA","created_at":"2026-05-18T12:25:49Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:1999:K37KG3CAIXSDKMCICHJX2DIMEA","target":"record","payload":{"canonical_record":{"source":{"id":"cond-mat/9911069","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"cond-mat.soft","submitted_at":"1999-11-04T21:11:09Z","cross_cats_sorted":["chao-dyn","cond-mat.dis-nn","cond-mat.stat-mech","nlin.CD","nlin.PS","patt-sol"],"title_canon_sha256":"ea5ffe7befeda67f61f4dda535c14afbc9ef42471bf260df171b8081f9764cf9","abstract_canon_sha256":"11e40e698efce5707182362be9c18f3048c07fb2f7e7184ef01c8bab538c965a"},"schema_version":"1.0"},"canonical_sha256":"56fea36c4045e435304811d37d0d0c2015b2ad06e263bcd96220548c40743f10","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:07:04.074874Z","signature_b64":"X/9+5Gdyy6KCebn47mJzcCvMBP8QwpJpn61+pIa5PqPhDDavBeg3GR+bx0k96mb/NQdzgw57X5OSBgKLOJCRBg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"56fea36c4045e435304811d37d0d0c2015b2ad06e263bcd96220548c40743f10","last_reissued_at":"2026-05-18T01:07:04.074183Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:07:04.074183Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"cond-mat/9911069","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":"2026-05-18T01:07:04Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"v0CBGiiIDc9b8sJnEtyquj/T4jxyB6Vzvt3/OPXGD71SfLa0B4MBc+tw9DX9ABBCw8l9fVHtiFSQJDdnl0yoBQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-31T10:22:27.974418Z"},"content_sha256":"0a2af578f7a019d4e5d57f6053e4f08a25aa0366c83b9b57180dfa3018c190de","schema_version":"1.0","event_id":"sha256:0a2af578f7a019d4e5d57f6053e4f08a25aa0366c83b9b57180dfa3018c190de"},{"event_type":"graph_snapshot","subject_pith_number":"pith:1999:K37KG3CAIXSDKMCICHJX2DIMEA","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Hydrodynamics of the Kuramoto-Sivashinsky Equation in Two Dimensions","license":"","headline":"","cross_cats":["chao-dyn","cond-mat.dis-nn","cond-mat.stat-mech","nlin.CD","nlin.PS","patt-sol"],"primary_cat":"cond-mat.soft","authors_text":"Bruce Boghosian, Carson C. Chow, Terence Hwa","submitted_at":"1999-11-04T21:11:09Z","abstract_excerpt":"The large scale properties of spatiotemporal chaos in the 2d Kuramoto-Sivashinsky equation are studied using an explicit coarse graining scheme. A set of intermediate equations are obtained. They describe interactions between the small scale (e.g., cellular) structures and the hydrodynamic degrees of freedom. Possible forms of the effective large scale hydrodynamics are constructed and examined. Although a number of different universality classes are allowed by symmetry, numerical results support the simplest scenario, that being the KPZ universality class."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"cond-mat/9911069","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":"2026-05-18T01:07:04Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"XtzJRMk255RCgS6osuQ5NK/xJLBfCTN/4ejnkDGVauJlnQGnxxJKJc0l/0UgJqyVNhHpg+sCGkmbg/NvxG3SDQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-31T10:22:27.975077Z"},"content_sha256":"b2ff9f876a629d447ffd2f35ca982dae7a109e2395bb5cc8db9cb238252e725b","schema_version":"1.0","event_id":"sha256:b2ff9f876a629d447ffd2f35ca982dae7a109e2395bb5cc8db9cb238252e725b"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/K37KG3CAIXSDKMCICHJX2DIMEA/bundle.json","state_url":"https://pith.science/pith/K37KG3CAIXSDKMCICHJX2DIMEA/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/K37KG3CAIXSDKMCICHJX2DIMEA/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":"2026-05-31T10:22:27Z","links":{"resolver":"https://pith.science/pith/K37KG3CAIXSDKMCICHJX2DIMEA","bundle":"https://pith.science/pith/K37KG3CAIXSDKMCICHJX2DIMEA/bundle.json","state":"https://pith.science/pith/K37KG3CAIXSDKMCICHJX2DIMEA/state.json","well_known_bundle":"https://pith.science/.well-known/pith/K37KG3CAIXSDKMCICHJX2DIMEA/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:1999:K37KG3CAIXSDKMCICHJX2DIMEA","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":"11e40e698efce5707182362be9c18f3048c07fb2f7e7184ef01c8bab538c965a","cross_cats_sorted":["chao-dyn","cond-mat.dis-nn","cond-mat.stat-mech","nlin.CD","nlin.PS","patt-sol"],"license":"","primary_cat":"cond-mat.soft","submitted_at":"1999-11-04T21:11:09Z","title_canon_sha256":"ea5ffe7befeda67f61f4dda535c14afbc9ef42471bf260df171b8081f9764cf9"},"schema_version":"1.0","source":{"id":"cond-mat/9911069","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"cond-mat/9911069","created_at":"2026-05-18T01:07:04Z"},{"alias_kind":"arxiv_version","alias_value":"cond-mat/9911069v1","created_at":"2026-05-18T01:07:04Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.cond-mat/9911069","created_at":"2026-05-18T01:07:04Z"},{"alias_kind":"pith_short_12","alias_value":"K37KG3CAIXSD","created_at":"2026-05-18T12:25:49Z"},{"alias_kind":"pith_short_16","alias_value":"K37KG3CAIXSDKMCI","created_at":"2026-05-18T12:25:49Z"},{"alias_kind":"pith_short_8","alias_value":"K37KG3CA","created_at":"2026-05-18T12:25:49Z"}],"graph_snapshots":[{"event_id":"sha256:b2ff9f876a629d447ffd2f35ca982dae7a109e2395bb5cc8db9cb238252e725b","target":"graph","created_at":"2026-05-18T01:07:04Z","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":"The large scale properties of spatiotemporal chaos in the 2d Kuramoto-Sivashinsky equation are studied using an explicit coarse graining scheme. A set of intermediate equations are obtained. They describe interactions between the small scale (e.g., cellular) structures and the hydrodynamic degrees of freedom. Possible forms of the effective large scale hydrodynamics are constructed and examined. Although a number of different universality classes are allowed by symmetry, numerical results support the simplest scenario, that being the KPZ universality class.","authors_text":"Bruce Boghosian, Carson C. Chow, Terence Hwa","cross_cats":["chao-dyn","cond-mat.dis-nn","cond-mat.stat-mech","nlin.CD","nlin.PS","patt-sol"],"headline":"","license":"","primary_cat":"cond-mat.soft","submitted_at":"1999-11-04T21:11:09Z","title":"Hydrodynamics of the Kuramoto-Sivashinsky Equation in Two Dimensions"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"cond-mat/9911069","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":"sha256:0a2af578f7a019d4e5d57f6053e4f08a25aa0366c83b9b57180dfa3018c190de","target":"record","created_at":"2026-05-18T01:07:04Z","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":"11e40e698efce5707182362be9c18f3048c07fb2f7e7184ef01c8bab538c965a","cross_cats_sorted":["chao-dyn","cond-mat.dis-nn","cond-mat.stat-mech","nlin.CD","nlin.PS","patt-sol"],"license":"","primary_cat":"cond-mat.soft","submitted_at":"1999-11-04T21:11:09Z","title_canon_sha256":"ea5ffe7befeda67f61f4dda535c14afbc9ef42471bf260df171b8081f9764cf9"},"schema_version":"1.0","source":{"id":"cond-mat/9911069","kind":"arxiv","version":1}},"canonical_sha256":"56fea36c4045e435304811d37d0d0c2015b2ad06e263bcd96220548c40743f10","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"56fea36c4045e435304811d37d0d0c2015b2ad06e263bcd96220548c40743f10","first_computed_at":"2026-05-18T01:07:04.074183Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:07:04.074183Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"X/9+5Gdyy6KCebn47mJzcCvMBP8QwpJpn61+pIa5PqPhDDavBeg3GR+bx0k96mb/NQdzgw57X5OSBgKLOJCRBg==","signature_status":"signed_v1","signed_at":"2026-05-18T01:07:04.074874Z","signed_message":"canonical_sha256_bytes"},"source_id":"cond-mat/9911069","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:0a2af578f7a019d4e5d57f6053e4f08a25aa0366c83b9b57180dfa3018c190de","sha256:b2ff9f876a629d447ffd2f35ca982dae7a109e2395bb5cc8db9cb238252e725b"],"state_sha256":"229bdcecef5b946d1334ea3e21827e3c91d84a908306ec4f010d23a753ed5625"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"WGIkwDuLL19840uFtT3PmG4aejTUhLQ/ww2xczqCJwqdxerkNp7BOG+IZgNUX6g5D2VZP6MFFh2mpI3Tyr57AQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-31T10:22:27.978446Z","bundle_sha256":"0fff87564f71674bcd9552728807cf7ed4c9edd580243b59a231579053392e13"}}