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The strong nonlinear coupling prohibits any new point symmetries from arising in the general case.","weakest_assumption":"The constitutive functions (capacity functions and diffusion coefficients) can be classified according to their invariance properties in the state space, and that the system equations take the specific coupled nonlinear cross-diffusion form stated in the model."}},"verdict_id":"19cb18ca-5faf-4406-8429-5cfff6a2c0b9"}}],"author_attestations":[],"timestamp_anchors":[],"storage_attestations":[],"citation_signatures":[],"replication_records":[],"corrections":[],"mirror_hints":[],"record_created":{"event_id":"sha256:04cd5bc5a3a11d92ed6aea93a7ee87be8a277f1c2afb930937a589fe28cb1ca1","target":"record","created_at":"2026-05-20T00:01:54Z","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":"3353b74b4b5aa4cc48117aad67d97596d56806cd38ba6703f0043e2f244a1e5f","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"nlin.SI","submitted_at":"2026-05-15T16:18:37Z","title_canon_sha256":"71624c9d23d6848699fcd925a2a977f3f6540e5ed6fa096bb5d825c71276560d"},"schema_version":"1.0","source":{"id":"2605.16136","kind":"arxiv","version":1}},"canonical_sha256":"ed96e15703adfaf65381665f4eb5abe00c11d97b4d52b7dc1c9afb8d8fc231e5","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"ed96e15703adfaf65381665f4eb5abe00c11d97b4d52b7dc1c9afb8d8fc231e5","first_computed_at":"2026-05-20T00:01:54.469676Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-20T00:01:54.469676Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"QCKIFSuptb0opM3Z+FO4ZvGfzavEisaOSCbmmQzIpUf2iBVxtaNFvTh6OttJOaFA5SFRcvbkCfh57+jXqICzAA==","signature_status":"signed_v1","signed_at":"2026-05-20T00:01:54.470386Z","signed_message":"canonical_sha256_bytes"},"source_id":"2605.16136","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:04cd5bc5a3a11d92ed6aea93a7ee87be8a277f1c2afb930937a589fe28cb1ca1","sha256:babd6d2c7880e3ed165bf6e9767604f563800aba43ba2127e1d78c706bc20969"],"state_sha256":"65d948ec60e02e291102c82c24ab9860dc7a6491489df4247b1a9736503f4f89"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"AyJp6XhswI3HMuq4nbPR1lZOR0UvQIyFNER8Xev5KhDqSsFeDsVXYO+LzeLr7KRRgfomRk6GH7/XDfbdo4xiDQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-05T20:40:10.602935Z","bundle_sha256":"c84d6454f61c83a81a6fd2ca49fbbd2f9cf5eaa77224d5da9170627aa0d3669e"}}