Birkhoff's Blog

Thoughts and technonogies.

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PayPal

These are my PayPal accounts. You can directly send money to these emails. PayPal accepts Visa, MasterCard, American Express, Discover, JCB and UnionPay. Note that if you’re using a Taiwanese account, you need to send money to my China one, and vice versa.

Cryptocurrencies

These are my Coinbase cryptocurrencies addresses:

  • BTC: 3CtsyPyfsAkSDZeVqBgeBonhK51vxGZfa8
  • ETH: 0xA3120aDa08aA25d6e8D7704380129Bff09BC8a6e

Alipay / Wechat Pay