Blockchains are exceptional in that, the moment a transaction has actually been recorded and confirmed, it may?�t be modified. The ledger only allows for one-way data modification. The information offered is for informational applications only. Some knowledge is supplied by CoinMarketCap and it is revealed on an ?�as is??basis, https://holdenbshwj.timeblog.net/65435390/copyright-no-further-a-mystery