{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2011:ELVE3LMDAJYR4VYLAM5TWTRYCC","short_pith_number":"pith:ELVE3LMD","canonical_record":{"source":{"id":"1105.0629","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/3.0/","primary_cat":"math.AP","submitted_at":"2011-05-03T16:33:12Z","cross_cats_sorted":[],"title_canon_sha256":"7ef3677562558d74c5f2b6bd1c34555663c5fb663d1d048e416f5b4f44702386","abstract_canon_sha256":"0eee645e9836555a2395284a37479610a6a641b288431cb48c64f7d0b36a0aa7"},"schema_version":"1.0"},"canonical_sha256":"22ea4dad8302711e570b033b3b4e3810811817acbf0c6651a5342c729b19719f","source":{"kind":"arxiv","id":"1105.0629","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1105.0629","created_at":"2026-05-17T23:56:01Z"},{"alias_kind":"arxiv_version","alias_value":"1105.0629v1","created_at":"2026-05-17T23:56:01Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1105.0629","created_at":"2026-05-17T23:56:01Z"},{"alias_kind":"pith_short_12","alias_value":"ELVE3LMDAJYR","created_at":"2026-05-18T12:26:28Z"},{"alias_kind":"pith_short_16","alias_value":"ELVE3LMDAJYR4VYL","created_at":"2026-05-18T12:26:28Z"},{"alias_kind":"pith_short_8","alias_value":"ELVE3LMD","created_at":"2026-05-18T12:26:28Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2011:ELVE3LMDAJYR4VYLAM5TWTRYCC","target":"record","payload":{"canonical_record":{"source":{"id":"1105.0629","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/3.0/","primary_cat":"math.AP","submitted_at":"2011-05-03T16:33:12Z","cross_cats_sorted":[],"title_canon_sha256":"7ef3677562558d74c5f2b6bd1c34555663c5fb663d1d048e416f5b4f44702386","abstract_canon_sha256":"0eee645e9836555a2395284a37479610a6a641b288431cb48c64f7d0b36a0aa7"},"schema_version":"1.0"},"canonical_sha256":"22ea4dad8302711e570b033b3b4e3810811817acbf0c6651a5342c729b19719f","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-17T23:56:01.135713Z","signature_b64":"j04RAOKKinUOPzb64cmvsOFZXdogh02IeplLharPoLTGq6u6o5PCkS3OamP/DqywHpcvB6Fhqyse8tXxdAkhCA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"22ea4dad8302711e570b033b3b4e3810811817acbf0c6651a5342c729b19719f","last_reissued_at":"2026-05-17T23:56:01.135108Z","signature_status":"signed_v1","first_computed_at":"2026-05-17T23:56:01.135108Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1105.0629","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":"2026-05-17T23:56:01Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"VVVDOTGJHGYmuO9B8IyYiCGM9/4It0FfHpMyciQUsOeAliG9dX4qy7eAi0h3cZ1l9ykZWRTrVM19HZnnLDHnAg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-07T22:06:24.918639Z"},"content_sha256":"d4cf8709031e22461cce331bd566bbe858388ee9757df718da9d7b10159a909b","schema_version":"1.0","event_id":"sha256:d4cf8709031e22461cce331bd566bbe858388ee9757df718da9d7b10159a909b"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2011:ELVE3LMDAJYR4VYLAM5TWTRYCC","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Classical and Nonclassical symmetries of the (2+1)-dimensional Kuramoto-Sivashinsky equation","license":"http://creativecommons.org/licenses/by/3.0/","headline":"","cross_cats":[],"primary_cat":"math.AP","authors_text":"Fatemeh Ahangari, Mehdi Nadjafikhah","submitted_at":"2011-05-03T16:33:12Z","abstract_excerpt":"In this paper, we have studied the problem of determining the largest possible set of symmetries for an important example of nonlinear dynamical system: the Kuramoto-Sivashinsky (K-S) model in two spatial and one temporal dimensions. By applying the classical symmetry method for the K-S model, we have found the classical symmetry operators. Also, the structure of the Lie algebra of symmetries is discussed and the optimal system of subalgebras of the equation is constructed. The Lie invariants associated to the symmetry generators as well as the corresponding similarity reduced equations are al"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1105.0629","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":"2026-05-17T23:56:01Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"7F1mqvepEfJ31kTc8GWvwjEvDPa9XNnNaFzw6p00azOzTKlqCN8xzl22YPY+lKIfyJ5PZA6c3RU1HezH1CAuAA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-07T22:06:24.919271Z"},"content_sha256":"8e3d3236c5b59f079ed78448431bb0651a77abbd2b2da8e26b8be8bdb7537224","schema_version":"1.0","event_id":"sha256:8e3d3236c5b59f079ed78448431bb0651a77abbd2b2da8e26b8be8bdb7537224"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/ELVE3LMDAJYR4VYLAM5TWTRYCC/bundle.json","state_url":"https://pith.science/pith/ELVE3LMDAJYR4VYLAM5TWTRYCC/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/ELVE3LMDAJYR4VYLAM5TWTRYCC/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":"2026-06-07T22:06:24Z","links":{"resolver":"https://pith.science/pith/ELVE3LMDAJYR4VYLAM5TWTRYCC","bundle":"https://pith.science/pith/ELVE3LMDAJYR4VYLAM5TWTRYCC/bundle.json","state":"https://pith.science/pith/ELVE3LMDAJYR4VYLAM5TWTRYCC/state.json","well_known_bundle":"https://pith.science/.well-known/pith/ELVE3LMDAJYR4VYLAM5TWTRYCC/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2011:ELVE3LMDAJYR4VYLAM5TWTRYCC","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":"0eee645e9836555a2395284a37479610a6a641b288431cb48c64f7d0b36a0aa7","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/3.0/","primary_cat":"math.AP","submitted_at":"2011-05-03T16:33:12Z","title_canon_sha256":"7ef3677562558d74c5f2b6bd1c34555663c5fb663d1d048e416f5b4f44702386"},"schema_version":"1.0","source":{"id":"1105.0629","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1105.0629","created_at":"2026-05-17T23:56:01Z"},{"alias_kind":"arxiv_version","alias_value":"1105.0629v1","created_at":"2026-05-17T23:56:01Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1105.0629","created_at":"2026-05-17T23:56:01Z"},{"alias_kind":"pith_short_12","alias_value":"ELVE3LMDAJYR","created_at":"2026-05-18T12:26:28Z"},{"alias_kind":"pith_short_16","alias_value":"ELVE3LMDAJYR4VYL","created_at":"2026-05-18T12:26:28Z"},{"alias_kind":"pith_short_8","alias_value":"ELVE3LMD","created_at":"2026-05-18T12:26:28Z"}],"graph_snapshots":[{"event_id":"sha256:8e3d3236c5b59f079ed78448431bb0651a77abbd2b2da8e26b8be8bdb7537224","target":"graph","created_at":"2026-05-17T23:56:01Z","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":"In this paper, we have studied the problem of determining the largest possible set of symmetries for an important example of nonlinear dynamical system: the Kuramoto-Sivashinsky (K-S) model in two spatial and one temporal dimensions. By applying the classical symmetry method for the K-S model, we have found the classical symmetry operators. Also, the structure of the Lie algebra of symmetries is discussed and the optimal system of subalgebras of the equation is constructed. The Lie invariants associated to the symmetry generators as well as the corresponding similarity reduced equations are al","authors_text":"Fatemeh Ahangari, Mehdi Nadjafikhah","cross_cats":[],"headline":"","license":"http://creativecommons.org/licenses/by/3.0/","primary_cat":"math.AP","submitted_at":"2011-05-03T16:33:12Z","title":"Classical and Nonclassical symmetries of the (2+1)-dimensional Kuramoto-Sivashinsky equation"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1105.0629","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:d4cf8709031e22461cce331bd566bbe858388ee9757df718da9d7b10159a909b","target":"record","created_at":"2026-05-17T23:56:01Z","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":"0eee645e9836555a2395284a37479610a6a641b288431cb48c64f7d0b36a0aa7","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/3.0/","primary_cat":"math.AP","submitted_at":"2011-05-03T16:33:12Z","title_canon_sha256":"7ef3677562558d74c5f2b6bd1c34555663c5fb663d1d048e416f5b4f44702386"},"schema_version":"1.0","source":{"id":"1105.0629","kind":"arxiv","version":1}},"canonical_sha256":"22ea4dad8302711e570b033b3b4e3810811817acbf0c6651a5342c729b19719f","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"22ea4dad8302711e570b033b3b4e3810811817acbf0c6651a5342c729b19719f","first_computed_at":"2026-05-17T23:56:01.135108Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-17T23:56:01.135108Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"j04RAOKKinUOPzb64cmvsOFZXdogh02IeplLharPoLTGq6u6o5PCkS3OamP/DqywHpcvB6Fhqyse8tXxdAkhCA==","signature_status":"signed_v1","signed_at":"2026-05-17T23:56:01.135713Z","signed_message":"canonical_sha256_bytes"},"source_id":"1105.0629","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:d4cf8709031e22461cce331bd566bbe858388ee9757df718da9d7b10159a909b","sha256:8e3d3236c5b59f079ed78448431bb0651a77abbd2b2da8e26b8be8bdb7537224"],"state_sha256":"3100e5da37d1c113e2a66bec13337a940c9304988f1b8a0868c27f0c4b3f0165"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"V5ClG+L9ZTUmf1oAFtdp9aCCDxILjo8qaTyrDJ9QrIy1rCWGYQebNdg8I6mE7Qrj5YrTfVKR0bBR9dfDAsYbCA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-07T22:06:24.922984Z","bundle_sha256":"23feb8a2f3b2b42bc54ebbc35f64a11b51f5dd78a4143841a29e70604e288146"}}