# Metaverse Thailand: New Virtual World For Land Owners

Metaverse Thailand, a virtual world that blends aspects of digital technologies is excited to announce the launch of the new decentraland allowing users to buy land in the virtual world.

Metaverse Thailand allows users to buy land from a real map in the heart of Bangkok, Thailand, and become landowners in the Ekamai area. Participants can notably become landowners for just a few dollars (BUSD) or MVP Coin.

The Metaverse Thailand has many unique features that set it apart from other projects in the market. The project has been primarily created to allow users to Play and Earn money back. The project offers decentralization, asset management inland trading, self-governing digital ID, the use of crypto for trade, NFTs, and the use of spatial from the real Thailand map.

Metaverse Thailand runs on the Binance Smart Chain. The team behind the project explained that this project gives users a layer 2 world comparing the real world with layer 1.  Currently, layer 2 has enough space to accommodate more people who want to own land in this universe.  The team, however, emphasizes that the available land might soon become unavailable since the project has gained a lot of traction since its launch. Metaverse Thailand stands to become a golden location as its value continues to grow, showing demand-supply traits similar to real land.

Lands on Metaverse Thailand will be sold in small ‘blocks’, 40×40 meters per block. Each bock has a starting price of 3 BUSD per or 300 MVP Coins. Participants can buy from one to one hundred blocks per transaction. Notably, the land sales will be done in three rounds per day at 12.00 pm, 5.00 pm, and at 9.00 pm (GMT+7), Bangkok Time. Each round will last for only 15 minutes

In the coming days, the Metaverse Thailand development teams plan to enable the land user to erect buildings on their lands. There will be a creator system that will allow designers to design various buildings for landowners. The team also plans to allow owners the ability to key in details or links on their metaverse to connect their storefronts in the real world to their metaverse. The project hopes this will help landowners advertise their businesses while at the same time enjoying their investment in the ‘secondary world.’ These developments will be done in partnership with universities or other institutions to promote careers for people in Thailand.

Complexity if there are more than one collision

Let $$h: {0,1}^*$$$${0,1}^l$$ be a hash function. We define a k-collision as a set of k distinct messages in which $$h(m_1)=h(m_2)=…=h(m_k)$$

There is an attack running in time $$O(2^l)$$ which evaluates $$h$$ on $$2^l + 1$$ distinct inputs, by the pigeonhole principle, two of the outputs must be equal.
A better way is using birthday attack and $$O(2^{l/2})$$. How can we use this to find a complexity for multi-collision of $$h$$ that is a random oracle model? Another question that we can think of is what happens if k is some power of 2 in a Merkle-Damgård construction?
The Merkle-Damgård transform based on the textbook is as follows:

Let $$(Gen, h)$$ be a fixed-length hash function for inputs of length $$2 n$$ and with output length $$n$$. Construct hash function $$(Gen, H)$$ as follows:

• $$Gen$$: remains unchanged.
• $$H$$ : on input a key $$s$$ and a string $$x in{0,1}^{*}$$ of length $$L<2^{n}$$, do the following:
1. Set $$B:=leftlceilfrac{L}{n}rightrceil$$ (i.e., the number of blocks in $$x$$ ). Pad $$x$$ with zeros so its length is a multiple of $$n$$. Parse the padded result as the sequence of $$n$$-bit blocks $$x_{1}, ldots, x_{B}$$. Set $$x_{B+1}:=L$$, where $$L$$ is encoded as an $$n$$-bit string.
2. Set $$z_{0}:=0^{n}$$. (This is also called the $$I V$$.)
3. For $$i=1, ldots, B+1$$, compute $$z_{i}:=h^{s}left(z_{i-1} | x_{i}right)$$.
4. Output $$z_{B+1}$$.

#### Metaverse Thailand: New Virtual World For Land Owners

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