Sovereign Translation Provenance with Per-Token Bilingual Lineage and Confidence Attestation across Languages.

Per-token signed lineage across 450+ living languages, with confidence and dictionary corroboration scores.

A method and system for producing cryptographically verifiable machine translation at per-token granularity across the principal living languages. For every output token a signed lineage record is emitted, identifying the source tokens from which the target token derives by cross-attention extraction, carrying a confidence scalar computed from softmax-margin or ensemble disagreement, and carrying an alignment score against a bilingual dictionary where one is available. The per-token records are bound into a translation manifest signed under an operator-controlled module-lattice key in hardware and hash-linked into the operator audit record conformant to the Open Audit Record specification; a challenger may interrogate any individual phrase offline without re-translating the document. Covers at least 450 living languages with one-to-many, many-to-one, zero-to-one, and reordered alignments. Filed 21 May 2026 as GB2611899.2.