變更

[[File:公有鏈.jpg|有框|右|公有鏈]]

[[File:2聯盟鏈.jpg|有框|右|聯盟鏈]]

=== 公有鏈 ===

*方舟私有鏈 Arkblockchain 一個比特幣並行區域鏈項目，特别面向供應鏈、電子商務、物聯網、醫療服務、政務等應用開發的高可信任私有鏈。

*美國期貨和期權交易所 CME集團於2017年4月11日宣布，正在測試基於區塊鏈的黄金期貨平台的正處於最后測試階段，该區塊鏈是為比特幣提供認證的對等網絡。<ref>{{cite web | title = CME Group is launching a gold-trading platform inspired by bitcoin | publisher = Market Watch | date = April 11, 2017 | url = http://www.marketwatch.com/story/cme-group-is-launching-a-gold-trading-platform-inspired-by-bitcoin-2017-04-11 | accessdate = 2017-04-11 | archive-date = 2017-04-11 | archive-url = https://web.archive.org/web/20170411220747/http://www.marketwatch.com/story/cme-group-is-launching-a-gold-trading-platform-inspired-by-bitcoin-2017-04-11 | dead-url = no }}</ref>

=== 物流區塊鏈碰撞===