tg-me.com/wateriran_env/57781
Last Update:
BY آب و محیط زیست
![](https://photo.tg-me.com/u/cdn4.cdn-telegram.org/file/ZzvFx_blR2HU-8I5eYCibdX1vaa-lFIkNMLGSJEjbYBDNOxwMBw0IHRqUjJUephlNie4ymoyTUb-nbCzFk3OUIvrMK-2s0Cz04xUc08XvGS7sL-zo1luEVzxtoaprU6IHODwfpgDHduSqqo8WNOPy0IShd2pPFdEbd_hYejLVsPTXdRYxh4fNwwhmbUA7JHvZ1rBKn_3uRhBsIvQnjgV4hwoH6UW1iXFibk_iy89dxH_vxP-4Flrdo89uR1GAwK2ixg8IVw1bDaC6AJYgZHIpsjTEqAgWHPtrvP9CtMkyQaHW96uVvca1ThO2KK78EimQbDjm0e6osezSoskl5VthA.jpg)
![](https://photo.tg-me.com/u/cdn4.cdn-telegram.org/file/J425t8cPdZq1-DPyC8mNLEATacCNd8NNiHCZggQ5oomC4zX7PhhYwRkB0-2qJlRdcL18L-wnJu705WDOWBQ9C_9-4v0GskBQKUC7O2LHlt4mpoTj8wWddoDR0ftUnFD4Ik2PsiX4yC9KvkAeGn9D4DYbNIHTPq_gg_vhZdmu7h7b2ay9YjV_Th2gGS5D98li3iycqQ5M3S2maif3ZdK5alr6wuccDT24Xo2UKEqC3ZYpdl_vI4Om9VMVqs4xyqrbzOaVQIWn8om0Xf0xYKNgZqbHO_FEC5h0BqAxJkw_1U1ST7y3NRDa9WcuEhTNyKjffJy1exsy8F1mtdLCOsr0Zw.jpg)
![](https://photo.tg-me.com/u/cdn4.cdn-telegram.org/file/hEEe5n6W62TfrnIonoEKs1yuvkqqdVgNX8S40wswu5BBAF4y11GdCzX0neuz8c6Xs6nE8dvpyijcO5_LnGYg4n7VEpJeO72dffeM7GM3deXKl6EGpBUNcSpjaXVB9Yndwxufymo4PdKQBvdZodCjEWbBgvecIVM-y7ZVh7hLe78HFvacI5JQ2A1Rzga9IKSwZX3Mst-bwnCne-GWqLMtjcPwKN1SgPgDXnLGn4Qx7I0a7ynMhWFmjDNTuJx3CcUwO3D9gRqskh_HJef0QJAxnuFvXa5LUHNCfEebqZIeLGw4KK2MeYGYhk2cJt7F97eJx_s9yGaeO8XgdibxchNBjg.jpg)
![](https://photo.tg-me.com/u/cdn4.cdn-telegram.org/file/kptm3rJUifAvqvZJ2sYS9vIpjYnJ7zx_2y_TYIp8byu0MvTRYHnAb1mzx72qR7yUCq2QqJwpeiQMkMyDQ4mX3n5NaYW6l60jryx3otpFIqy7hU5bhYgJzdLrVtPpq9c_XRVa6SWRJTGy-u7mKiWQ-WLJycgxxx-roB_is8_j5HxiN2ou4wLDeVNqwnXX9Y7D8zOgPIwevOYahXBoPQ1BJ6g_yZH8o80mszBeT7e4q0oXIHzI_EJWsSITqV4TMy5MKOCs8QS2rsrkrQjHVp_WIrfuEdNuz9bT8c7r9k3EhAXf76yHeJwd_UbW1QnaCoaK2gPVcWSdshkYmBV9BijtMQ.jpg)
![](https://photo.tg-me.com/u/cdn4.cdn-telegram.org/file/Srp4xHLjdTiQkCH9vKD15muGGBPfF1RuhtUjJId9Q12h15SPRpvHAwQkaa815A6sFBQbEXYhYRteaC71B1IO77BLpm38xGXUWr6A1hSPUwtHFjjttZEUpIBR_ndCW0k9sKSNCya6zv9LEoRneYZbzXxr5Hofj9U11WkHsoWIA8wpI2V6wz_eInDydxurdfDT4TTvKs9_ZDF6WznKqomKLutK3XY4HIW5KFT_ZNOYc8WolelFIw3rVqd52SCL0p4CAbP1qw-czm9dzslo8a_pb8zBsslN9pqYV5u07zaZpPr4HPrc6dPvUOkCitdD-hekufVxpOGHMmnZrF129PQY1Q.jpg)
Share with your friend now:
tg-me.com/wateriran_env/57781
BY آب و محیط زیست
The S&P 500 slumped 1.8% on Monday and Tuesday, thanks to China Evergrande, the Chinese property company that looks like it is ready to default on its more-than $300 billion in debt. Cries of the next Lehman Brothers—or maybe the next Silverado?—echoed through the canyons of Wall Street as investors prepared for the worst.
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.”
آب و محیط زیست from fr