Function compose_e8_embedding_blake3 

pub fn compose_e8_embedding_blake3(
    operand: &KappaLabel<71>,
) -> Result<AddressOutcome<71>, CompositionFailure>

CS-E8 under σ-axis Blake3Hasher.

Errors

• CompositionFailure::OperandSigmaAxisMismatch — an operand’s σ-axis prefix is not "blake3".
• CompositionFailure::MalformedOperand — an operand is not a well-formed κ-label.
• CompositionFailure::PipelineFailure — defensive.