Preturino lets users search all plain text available on the Bitcoin blockchain since the genesis block.
Preturnio, a full-text search engine for the Bitcoin blockchain, has been introduced, allowing users to scan for Bitcoin transactions that include readable text.
Preturnio is a platform that allows for the search of plain text within any coinbase transaction, text-based ordinal inscription or OP_RETURN script since the genesis block. All data in the Bitcoin blockchain is stored natively in hexadecimal format, and Preturnio offers search results that are converted to a readable format. OP_RETURN is a unique opcode in the Bitcoin scripting language that enables data to be embedded in a transaction output without the need to spend any bitcoin.
This was added to the Bitcoin protocol in 2014, primarily to allow for the creation of simple, low-cost and secure timestamping services. OP_RETURN has been useful in various applications, including digital signatures, notarization and proof of
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