72: Activate, SSS remaining rewards!

Color-changing ink!

The Streamer actually made color-changing ink?!

The person who had previously commented, believing Su Yu could definitely break through the anti-counterfeiting technology, was now incredibly excited.

When everyone else was still doubting Su Yu, he was the first to unequivocally choose to believe!

He believed Su Yu could definitely draw a dollar and research real anti-counterfeiting technology.

The appearance of this scene also fulfilled his wish.

The color-changing ink used on legitimate dollars is called three-color optically variable ink, mainly composed of three colors.

These are the first layer of dark green, the second layer of blue-black, and the third layer of purplish-red.

And the color-changing ink Su Yu displayed at this moment was precisely made to completely imitate it!

"Goodness, is this really the legendary color-changing ink? A silver body, then under natural light, as the angle changes, the color also changes."

"It seems, perhaps, probably, possibly, maybe, should be, yes, right?!"

"Quick, quick, quick, who was it just now who said the Streamer couldn't research anti-counterfeiting technology? You tell me what this is?"

"Hahahahaha, Streamer, quickly color the dollar and let's see the effect. I'm getting excited."

In the live broadcast room, after seeing Su Yu reveal his trump card, the audience's emotions were also stirred up at this moment.

Although color-changing ink might not be considered much in the eyes of professionals, for ordinary viewers, being able to create anti-counterfeiting technology for currency was indeed impressive.

"Color-changing ink has already been made, so are the other anti-counterfeiting technologies still far off?"

In the live broadcast room, a comment once again voiced everyone's thoughts.

This is how human psychology works: when something utterly impossible first happens, people are often surprised, then disbelieving, then slowly accept it, and finally get used to it.

And once something becomes acceptable to the public, at this point, everyone will have higher expectations for it.

They always feel it should be able to go a step further, should be able to do better.

Just like Su Yu now.

He first accomplished the feat of hand-drawing a dollar, which no one dared to believe.

Then he presented the color-changing ink technology.

So, everyone's expectation for him now is that he can continue to break through other anti-counterfeiting technologies!

"Yes, Streamer, since color-changing ink has already been made, let's work harder. Isn't it not far from counterfeiting a real dollar?"

"I believe the Streamer definitely has more surprises! I trust the Streamer!"

"Alright, don't praise him to death. Other capable Streamers were killed by your praise like this."

"Exactly, exactly. No matter what level the Streamer achieves today, he already deserves the respect of all of us! I don't think it's necessary to break through and display all the remaining anti-counterfeiting technologies today. Moreover, if anti-counterfeiting technology were so easy to crack, dollars would have been worthless long ago."

"Oh, right, right, right, do you really think the currency of our great USA is so easy to imitate? I advise you to quickly give up such unrealistic ideas."

Su Yu looked at the endless debate in the comments, some speaking up for him, some expecting more displays, and also the dissuasion from foreign friends hidden in the comments, and smiled faintly.

Indeed, he couldn't fully display a perfectly counterfeited dollar today.

After all, the anti-counterfeiting technologies the system rewarded him with were only color-changing ink and watermark technology.

So this was also the reason he wanted to display everything he had learned today.

It was precisely because of today's semi-finished product display that Su Yu had hope of obtaining other currency anti-counterfeiting technologies through system rewards.

Thinking of this, he didn't rush to answer his fans' words.

Instead, he held up the semi-finished counterfeit dollar with Franklin's portrait drawn on it, placing it in front of the fill light of the live broadcast camera.

As he slightly moved its position, the dazzling light source passed through the paper money, thin as a cicada's wing, illuminating the blank space on the right side of the banknote.

There, at some point, a watermark of Franklin, identical to the portrait, had conspicuously appeared!

The watermark was clearly visible, and its three-dimensional quality was extremely strong, giving one the feeling that the figure was intently staring at them.

This watermark was something the audience in the live broadcast room had not discovered at all before.

If Su Yu hadn't specifically adjusted the angle and transparency, perhaps no one would have noticed this detail until the broadcast ended.

"No, am I seeing things? How come I seem to have seen a watermark on the banknote?!"

"A watermark? The Streamer also broke through watermark technology?!"

"It's real! It's real! I also saw the watermarked Franklin portrait on the right. If you don't believe me, zoom in on your screen and look closely!"

"Oh my, this watermark is too clear. I just specifically found a dollar I brought back from USA to compare. I found that the watermark made by the Streamer is clearer and has a better effect than a real dollar."

Watermark technology is generally divided into three types:

Fixed watermark, semi-fixed continuous watermark, and full-page watermark.

A fixed watermark has a fixed position for the pattern on the banknote. It is usually used for important parts, such as national emblems or portraits, and its design is accurate, with rich layers, making it difficult to reproduce.

A semi-fixed watermark is a continuous, repeating watermark of fixed width within a specific section of the banknote.

The full-page watermark is simpler, with patterns randomly spread across the entire currency, and their distribution position is not fixed.

However, this type of watermark is the most difficult to counterfeit because it requires the pattern to be evenly distributed across the entire paper.

The Franklin portrait watermark used on the right side of the dollar belongs to the first type, a fixed watermark. This requires the density of the pulp fibers to be altered during the banknote manufacturing process through pre-made special molds.

The fixed watermark made by Su Yu indeed surpassed the quality of real dollars.

It's worth noting that the fixed watermarks on dollars actually have very poor quality control; many 100-dollar watermarks are blurry, have poor effects, and vary in shape.

Therefore, for someone with no prior knowledge, simply using watermarks to distinguish the authenticity of a dollar can easily lead to misjudgments.

"Ding! Congratulations, Host, your progress on the counterfeit currency mission is 75% complete!"

"Due to exceeding the progress and the number of participants in the social recognition rating exceeding 300,000, the remaining SSS reward is activated!"

"Current number of participants in the social recognition rating: 322,731 people, average recognition score: 85.32. (Rating can continue to improve before mission completion)"

"All remaining SSS rewards have been issued: 'Banknote Security Thread Technology', 'Intaglio Printing', 'Micro-printing', 'Red and Blue Fibers'."

"Date: 8/15"

"Friendly reminder: There is still one week left. We hope the Host will continue to work hard and strive to improve the social recognition score. If the mission is completed early or exceeded, additional system rewards will be triggered!"