This modifies commits provided by @petertodd to use the terms "pubkey script" and "signature script" instead of other terms. * Rename "scriptPubKey" and "output script" to "pubkey script" (suggested by @luke-jr). We leave a token "scriptPubKey" at the point where we define pubkey script so that searchers can find it. * Rename "scriptSig" to "signature script" (suggested by @luke-jr). We also leave a token "scriptSig" at this definition point. * Rename "redeemScript" to "redeem script" * Defined ECDSA on secp256k1 curve as the crypto used in the Transaction section and added references to secp256k1 private/public keys and signatures. * Removed "The Parts Of A Transaction" illustration by commenting it out in the HTML. Shoehorning the pubkey/signature script terms into this image was becoming difficult, and I'm not very fond of that illustration anyway. I'll see if I can think of a nicer replacement illustration for some point in the future. * Add a short paraphrased version @petertodd's description of scripts as generalized crypto. * Updated all the illustrations which referred to either pubkey scripts or signature scripts to use these terms.
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[transaction version number]: /en/developer-guide#term-transaction-version-number "A version number prefixed to transactions to allow upgrading"" [transactions]: /en/developer-guide#transactions "A transaction spending satoshis" [unconfirmed]: /en/developer-guide#term-unconfirmed-transactions "A transaction which has not yet been added to the block chain" [unconfirmed transactions]: /en/developer-guide#term-unconfirmed-transactions "A transaction which has not yet been added to the block chain" [unique addresses]: /en/developer-guide#term-unique-address "Address which are only used once to protect privacy and increase security" [URI QR Code]: /en/developer-guide#term-uri-qr-code "A QR code containing a bitcoin: URI" [utxo]: /en/developer-guide#term-utxo "Unspent Transaction Output (UTXO) holding satoshis which have not yet been spent" [verified payments]: /en/developer-guide#verifying-payment "Payments which the receiver believes won't be double spent" [v2 block]: /en/developer-reference#term-v2-block "The current version of Bitcoin blocks" [wallet]: /en/developer-guide#wallets "Software which stores private keys to allow users to spend and receive satoshis" [Wallet Import Format]: /en/developer-guide#term-wallet-import-format "A private key specially formatted to allow easy import into a wallet" [wallets]: /en/developer-guide#wallets "Software which stores private keys to allow users to spend and receive satoshis" [X509Certificates]: /en/developer-examples#term-x509certificates