Bitcoin Candy (CDY)CDY
An airdrop fork of Bitcoin Cash: split at BCH block 512,666 in January 2018 with 1,000 CDY per BCH, Equihash mining, 2-minute blocks and a 21 billion supply.
The wiki's angle: Candy is the moment the airdrop era turned on Bitcoin Cash itself. Five months after BCH left Bitcoin, someone forked BCH with a quantum-resistance pitch and the slogan “Help Bitcoin (Cash) Great Again”.[1][4]
Announcement
The Bitcointalk announcement of 9 January 2018 said the team would fork Bitcoin Cash at block 512,666 and explore “anti-quantum attacks” on the new chain[1]. It listed a two-minute block interval, a 21 billion supply, Equihash GPU mining, no SegWit and a 1% premine, and said BCH holders would receive 1,000 CDY per BCH[1].
The fork
The Candy client sets cdyHeight to 512,666 and defines a later Equihash-related fork height (CDYEquihashForkHeight) of 656,960[2]. Bitcoin Cash block 512,666 has a header time of 23:32:52 UTC on 12 January 2018, which is the morning of 13 January in China[3]. The README dates the split to 13 January 2018 and says the two chains share their history up to it[4].
Later changes
The current website lists the fork height and date, Equihash(144,5), a 1:1000 distribution, a 1% premine, 32 MB blocks and a supply of 22 billion, a billion more than the launch announcement stated[5][1]. This wiki has not found a primary source that explains the change in supply, so the reason is unknown[5].
References
- primary“[ANN] Bitcoin Candy - Fork 1:1000 of Bitcoin Cash”, Bitcointalk topic 2715832 (opened 9 Jan 2018) [archived]
- primaryBitcoin Candy src/chainparams.cpp (cdyHeight 512666; Equihash fork height 656960) [archived]
- primaryBlockchair, Bitcoin Cash block 512,666 (header time 1515799972 = 2018-01-12 23:32:52 UTC) [archived]
- primaryBitcoin Candy README, GitHub bitcoincandyofficial/bitcoincandy [archived]
- primaryBitcoin Candy official website, cdy.one (read 13 Nov 2026) [archived]