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Cafodd y gwaith hwn ei ryddhau i'r parth cyhoeddus gan ei awdur, Andrew Adam Caldwell. Mae hyn yn weithredol ledled y byd. Hwyrach nad yw hyn yn bosib yn ôl cyfraith rhai gwledydd; os felly: Mae Andrew Adam Caldwell yn rhoi i unrhywun yr hawl i ddefnyddio'r gwaith hwn at unrhyw ddiben, heb unrhyw amodau, oddieithr unrhyw amodau gofynnol yn ôl y gyfraith.