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A STAMP is a Counterparty transaction which contains a valid STAMP:base64 string in the description key. STAMPS can be decoded directly from the original Bitcoin transaction. In order for speed of processing and to eliminate needs for indexing, we are utilizing Counterparty API to decode the original Bitcoin transactions. Once the decoding is complete, we upload the images to stampchain.io for consumption via web applications as a convenience. It is intended that anyone may decode these transactions and interpret the underlying image data for rendering on any application.