block chainn.

Brit.

/ˈblɒk tʃeɪn/, U.S.

/ˈblɑk ˌtʃeɪn/

Origin: Formed within English, by compounding. Etymons: block n.¹, chain n.

Etymology: < block n.¹ + chain n.

1. A chain, esp. a drive chain, composed of alternate solid blocks and links; material of this kind. Now chiefly historical.

ΘΠ

society > occupation and work > equipment > building and constructing equipment > fastenings > [noun] > chain > types of

jack chain1639

safety chain1845

1809 Amer. Reg. 5 80/2 An additional appropriation..will be necessary, exclusive of the expense of a line of block chains, &c. across the harbour of New York.

1852 Sci. Amer. 10 July 338/1 At each end, these block-chains are made fast to eccentrics.., so that as the rectangular blocks are wound around the eccentric, the diameter of the coil is rapidly increased.

1896 A. Sharp Bicycles & Tricycles xxvi. 431 The ‘Roller’ has the advantage over the ‘Humber’, or block chain, that its rubbing surface is very much larger.

1953 Pop. Sci. June 238/2 Finn eventually found some block chain, and a large matching sprocket.

2013 P. Farren & C. Farren Bicycling through Time 70 Block chains for the early Humber ‘safeties’ and tricycles were obtained from Thomas Green & Son, the lawnmower makers.

2. Computing. A sequence of digital records linked using encryption and distributed and managed typically in a peer-to-peer network, used esp. by cryptocurrencies as a secure and verifiable ledger of transactions; the technology underpinning this.The first blockchain was created as a secure public ledger for the cryptocurrency Bitcoin (Bitcoin n.).Each record or ‘block’ in a blockchain includes a timestamp and an encrypted representation of the preceding block in the sequence, making it virtually unchangeable, since any change to the data in a block would be apparent unless every subsequent block were also altered.

2011 bitcoinj 14 Mar. (Usenet newsgroup, accessed 9 July 2021) As receiving the entire block chain (at least once) seems currently to be only way to determine the balance of the wallet, I'd say the method is currently a bit useless.

2012 PC Pro Feb. 77/3 This database, or master registry, of confirmed transactions, is known as the ‘block chain’ and is maintained collectively by all the computers that use the Bitcoin network.

2014 Times 29 Sept. 21/1 Bitcoin and its rivals—known as altcoins—and the ‘blockchain’ technology that lies behind them, have to potential to spark a radical decentralisation of society itself.

2021 P. Raj in S. Aggarwal et al. Blockchain Tech. for Secure & Smart Applic. across Industry Verticals p. xvi Blockchain is definitely one of the pioneering technologies for the future of businesses.

This entry has been updated (OED Third Edition, December 2022).

单词	block chain
释义	block chainn. Brit. /ˈblɒk tʃeɪn/, U.S. /ˈblɑk ˌtʃeɪn/ Origin: Formed within English, by compounding. Etymons: block n.¹, chain n. Etymology: < block n.¹ + chain n. 1. A chain, esp. a drive chain, composed of alternate solid blocks and links; material of this kind. Now chiefly historical. ΘΠ society > occupation and work > equipment > building and constructing equipment > fastenings > [noun] > chain > types of jack chain1639 safety chain1845 1809 Amer. Reg. 5 80/2 An additional appropriation..will be necessary, exclusive of the expense of a line of block chains, &c. across the harbour of New York. 1852 Sci. Amer. 10 July 338/1 At each end, these block-chains are made fast to eccentrics.., so that as the rectangular blocks are wound around the eccentric, the diameter of the coil is rapidly increased. 1896 A. Sharp Bicycles & Tricycles xxvi. 431 The ‘Roller’ has the advantage over the ‘Humber’, or block chain, that its rubbing surface is very much larger. 1953 Pop. Sci. June 238/2 Finn eventually found some block chain, and a large matching sprocket. 2013 P. Farren & C. Farren Bicycling through Time 70 Block chains for the early Humber ‘safeties’ and tricycles were obtained from Thomas Green & Son, the lawnmower makers. 2. Computing. A sequence of digital records linked using encryption and distributed and managed typically in a peer-to-peer network, used esp. by cryptocurrencies as a secure and verifiable ledger of transactions; the technology underpinning this.The first blockchain was created as a secure public ledger for the cryptocurrency Bitcoin (Bitcoin n.).Each record or ‘block’ in a blockchain includes a timestamp and an encrypted representation of the preceding block in the sequence, making it virtually unchangeable, since any change to the data in a block would be apparent unless every subsequent block were also altered. Π 2011 bitcoinj 14 Mar. (Usenet newsgroup, accessed 9 July 2021) As receiving the entire block chain (at least once) seems currently to be only way to determine the balance of the wallet, I'd say the method is currently a bit useless. 2012 PC Pro Feb. 77/3 This database, or master registry, of confirmed transactions, is known as the ‘block chain’ and is maintained collectively by all the computers that use the Bitcoin network. 2014 Times 29 Sept. 21/1 Bitcoin and its rivals—known as altcoins—and the ‘blockchain’ technology that lies behind them, have to potential to spark a radical decentralisation of society itself. 2021 P. Raj in S. Aggarwal et al. Blockchain Tech. for Secure & Smart Applic. across Industry Verticals p. xvi Blockchain is definitely one of the pioneering technologies for the future of businesses. This entry has been updated (OED Third Edition, December 2022). < n.1809
随便看	dryshod dryski dryskid dryskin dryskinned drysne drysnyng dryspin dryspun dryster drystone drystone construction drystone dyke drystone dyker drystone wall drystone waller drystone walling drystove drysuck dryth drytongued dryup drywall drywalled drywaller