called by CheckTxCostAgainstBalance.

utility function for sp to list its earnings.

called by routines in archon-dht since in the smart contract nodeID -> address -> spProfile.

This function is available to client that downloads an archon file, so that they may validate the ContainerSignature associated with the download.

An sp participating in archon network makes available to archon clients its cache of registeredSp profiles.

Called by sp.

An uploader needs to first have their username registered with the sc before they can upload to the archon cloud.

Note this is designed for registerSP and proposeUpload tx only.

To upload shards to sps, the uploader must make ProposeUpload tx to the smart contract with "SPsToUploadTo" being the result of the local marketplace instance with the upload as input.