dominicrume/cantor8_kya_rails: step-1-mandate/daml/KyaAnchor.daml

Daml contract source - dominicrume/cantor8_kya_rails/step-1-mandate/daml/KyaAnchor.daml ```daml -- | Bind a receipt chain to where it came from. -- -- SPEC.md section 8 says the chain "is not signed. It proves internal -- consistency, not origin. Anyone can produce a valid chain saying anything." --