武汉地铁要支持交通联合了？
武汉通近日就「交通部互联互通国际和国密双算法」PSAM卡进行采购，数量为1万张。简单说下，PSAM卡是用于闸机、卡机等支付设备的配件之一，若要改造交通联合，则需要对支付设备更换相应标准的PSAM卡。看起来，似乎当地的轨道交通系统终于要提上支持交通联合的日程了？
📍发表于：中国 福建
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BY 咕 Billchen 咕 |
Bitcoin is built on a distributed digital record called a blockchain. As the name implies, blockchain is a linked body of data, made up of units called blocks that contain information about each and every transaction, including date and time, total value, buyer and seller, and a unique identifying code for each exchange. Entries are strung together in chronological order, creating a digital chain of blocks. “Once a block is added to the blockchain, it becomes accessible to anyone who wishes to view it, acting as a public ledger of cryptocurrency transactions,” says Stacey Harris, consultant for Pelicoin, a network of cryptocurrency ATMs. Blockchain is decentralized, which means it’s not controlled by any one organization. “It’s like a Google Doc that anyone can work on,” says Buchi Okoro, CEO and co-founder of African cryptocurrency exchange Quidax. “Nobody owns it, but anyone who has a link can contribute to it. And as different people update it, your copy also gets updated.”
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