Chapter 124 Return to 2704
The next day after settling Pei's mother down, Shi Yanchen took Pei Song to the headquarters of Country D.
SNK
Country D’s headquarters is located in the financial district in the city center. The building with all-glass curtain walls sparkles in the sunset.
As soon as I walked into the lobby, the blond receptionist greeted me in standard German: "Guten
Abend,
Herr
Shi,
Herr
Pei." (Good evening, Mr. Shi, Mr. Pei.)
The elevator went directly to the 38th floor, where the conference room was already full of technical experts.
Shi Yanchen briefly introduced Pei Song in German, and then got straight to the point: "Today we will focus on two core issues: one is how to achieve the order processing capability of one million TPS, and the other is to ensure the atomicity of settlement under high concurrency."
He pulled up the system architecture diagram: "We designed a three-layer architecture. The first layer is a high-performance matching engine that uses FPGA hardware acceleration and can complete order matching within 100 nanoseconds. The second layer is a distributed ledger that uses an improved PBFT consensus algorithm to control the confirmation time within 50 milliseconds. The third layer is an intelligent risk control system that can monitor and intervene in abnormal transactions in real time."
"Even with FPGA, the latency jitter of the matching engine is difficult to control," the technical director questioned, "especially when the market fluctuates violently, the order queue may be congested."
"We added a pre-processing module to the front end of the order queue," said Shi Yanchen. "Through a mixed sorting algorithm of price priority and time priority, 90% of invalid orders are filtered out before they enter the queue. At the same time, a microsecond price locking mechanism is implemented on the FPGA to effectively prevent price flash crashes."
Pei Song added: "We simulated extreme market conditions in the stress test environment. Even with millions of orders concurrently, the standard deviation of system latency was controlled within 5 microseconds."
Shi Yanchen looked at him appreciatively, and then demonstrated the risk control plan: "The most important thing in the clearing process is to ensure the atomicity of the transaction. We use a two-phase commit protocol, combined with a global snapshot based on a vector clock, which can achieve automatic rollback when any node fails..."
The discussion lasted until late at night, and everyone finally finalized a preliminary plan.
The next morning, the two set off for Zurich.
On the way, Shi Yanchen carefully reminded him: "When you meet with UBS's investment director, I will lead the negotiations. You should focus on their risk control requirements, which is what investment banks value most."
When he arrived at UBS headquarters, Shi Yanchen went straight to the financing plan: "In the first phase, we need $5 billion, which will be used mainly in three areas: First, to build
The first is to build a Tier-4 standard data center, the second is to acquire two licensed digital asset exchanges, and the third is to establish a liquidity reserve pool. "
"How is the site selection for the data center considered?" asked the investment director.
"We have looked for suitable locations in Dubai, Singapore and London," Shi Yanchen said. "We mainly consider three factors: one is energy cost, two is network latency, and three is the regulatory environment. We are currently leaning towards Dubai, which has complete offshore financial policy support."
"How do you control compliance risks?" the supervisor continued to ask.
"We adopt a layered and isolated structure," Shi Yanchen explained. "The exchange, custody and clearing are operated by different licensed entities. At the same time, we introduce a third-party custodian institution, and all funds are deposited in banks."
Pei Song took over the topic: "We have also designed a smart contract system that can realize atomic swaps of cross-chain assets and support programmable compliance restrictions, such as transaction limits and KYC verification."
The supervisor nodded. "The plan is complete. However, we need a more detailed risk assessment report, especially a quantitative analysis of market risk and credit risk."
After leaving UBS, Shi Yanchen concluded: "Large investment banks focus on two things: compliance and risk control. No matter how good a project is, it won't work without a sound risk control system."
This trip to Europe allowed Pei Song to deeply appreciate the complexity of top-level projects.
Not only do we need to pursue excellence in technology, but we also need to balance the interests of all parties and consider all possible risk points.
Shi Yanchen's ease in the process made him admire him even more.
After finishing their business, the two were planning to go back to City M directly, but Shi Yanchen said to Pei Song: "Let's change the itinerary and go to Geneva."
"Do you have any appointments over there?" Pei Song asked.
"There's an old friend there," he said, "whom it would be very helpful for you to meet."
It was a villa by the lake, and the owner was a white-haired old man.
"Leon!" The old man hugged Shi Yanchen warmly, "Long time no see."
"This is my boyfriend Pei Song," Shi Yanchen introduced. "He and I are now in charge of the International Financial City project."
The old man looked Pei Song up and down and said, "You are really young and promising."
It turns out that this old man is a former senior executive of the Bank for International Settlements and is very influential in the financial circle.
"Leon has mentioned you to me many times," the old man said, "saying that you are serious and have clear ideas. If you need help with this project, you can always come to me."
On the plane back to City M, Pei Song was still immersed in the experiences of the past few days.
"Isn't this a big harvest?" Shi Yanchen asked.
Pei Song nodded: "I feel much more open-minded. Not only did I see how the international financial circle works, but more importantly, I learned a lot of negotiation ideas."
"You performed well," Shi Yanchen said. "These top investment banks have different styles and focuses. More exposure will be very helpful for you to handle projects in the future."
Pei Song smiled and leaned on his shoulder: "So you are paving the way for me?"
"Of course," Shi Yanchen held his hand, "I hope you can go further."
It was late at night when they returned to City M from Geneva. Shi Yanchen drove Pei Song back to the luxury apartment where they once lived together.
The elevator rose quietly. Pei Song watched the floor numbers jump up little by little, and his heartbeat quickened.
It has been a year, and he still remembers every detail of when he left.
With a "ding" sound, the elevator reached the 27th floor.
At the end of the familiar corridor, the door number of Room 2704 glowed faintly in the night.
Shi Yanchen took out the key, his movements still as skillful as ever.
The sound of the door lock turning made Pei Song feel as if he was in a dream - it was the same sound when he dragged his luggage away a year ago.
The light in the entrance hall came on, and Pei Song was stunned by what he saw.
The living room, the kitchen, the dining table... everything was exactly the same as when he left.
"You..." Pei Song turned to look at Shi Yanchen, "You haven't changed in this year?"
Shi Yanchen took off his coat and hung it up, his tone still calm: "Someone comes to clean every week, I ask them to keep it the same as it was."
Pei Song's nose felt sore, he remembered that Shi Yanchen said "I won't move away" before he left. It turned out that not only did he not move away, but even every blade of grass and every object was kept intact.