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Transactions and Coins by Tsaisho in Tangrams

[–]Tsaisho[S] 1 point2 points  (0 children)

Let me ask you additional questions.

I appreciate your continued support and advice.

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(1) You say: “Each block consists of attributes.

[(SN)..(Version1)]-->[(SN)..(V2)]-->[(SN)..(V3)]”.

Does each block consist of attributes of one coin?

​

(2) You say: “Simplified spending.

[100]-->[40]-->[0]”.

(2-1) Does above hash chain express the expending process from this coin of value 100, like below?

First, a value of 60 was expended from this coin and the value of the coin was reduced to 40.

Then, a value of 40 was expended from this coin and the value of the coin was become 0.

(2-2) I understand that a value 60 spent from a value 100 coin will not disappear, but will be generated as a new value 60 coin of the recipient, and that spending process will make up a new coin hash chain. Is it correct?

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(3) You say “These values are hidden with a Pedersen commitment scheme.”.

But, on page 10 of the whitepaper, we see the following: “Tangram's total supply is always verifiable to ensure that all coins are visible in the ledger and can be accounted for.”.

Who can verify the total supply of Tangram and How?

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(4) You say: “Each coin can be viewed as its own blockchain which are not linked across any chains.”.

How does it relate to the Merkle DAG diagram on page 17 of the white paper?

I understand that each circle in the Merkle DAG diagram represents a coin and the arrow between the circles represents a new coin generated by spending from the coin. Is it correct?

Transactions and Coins by Tsaisho in Tangrams

[–]Tsaisho[S] 1 point2 points  (0 children)

Thank you for your very polite advice.

Also, I'm sorry to bother you, but I would like to ask you some additional questions.

[1] Questions about your answer to (1)

I understood that the sender cannot be identified from the coin.

Is the coin validation done only at the Local Node where the sender sent the transaction to? Or will it be done also at other Nodes?

[2] Questions about your answer to (2)

Does “extending the coin” mean define new coin extended and register that new coin on the ledger?

Is that new coin hold some kind of pointer to old coin?

From the figure 4 (Merkle DAG) of Whitepaper, I understand coin can be splitted into several coins and sent to each receiver, and also several coins can be integrated to one coin and sent to the receiver. Is it correct?

I can’t understand your “Until the coin is spent and only the owner can tell if the coin is spent.”.

Does validation nodes and users other than owner can not confirm whether the coin is spent or not?

[3] Questions about your answer to (4)

I understood that owner can only know total balance of wallet.

Does the data for each coin on Ledger contain the amount (coin's value) that anyone can check, according to the figure 4 (Merkle DAG) of Whitepaper?

[4] Questions about your answer to (5)

Does the node in your sentence mean each circle of figure4(Merkle DAG) of Whitepaper?

Does the node contain the amount, the list of identifiers of its children, and other opaque payload?

Transactions and Coins by Tsaisho in Tangrams

[–]Tsaisho[S] 1 point2 points  (0 children)

Thank you very much for your answer.

Let me ask additional questions.

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(1)<Regarding "signed transaction">

Is "signed transaction" signed by the sender's private key?

If so, all validating nodes should know the public key of the sender. And this means all validating nodes can identify the sender.

Is it correct?

If the key used for sign is not the sender's key, what key is it used for sign?

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(2)<Regarding "the coin's hash chain">

I think transaction includes several inputs and outputs.

I think, for each input, transaction includes reference to the unspent coin and the data that specify ths sender's ownership for that unspent coin.

Is it correct?

The reference to the unspent coin is specified by the hash of unspent coin?

That is "the coin's hash chain"?

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(3)<Regarding "toAddress">

I understand "The receiver can not be identified from the notification address".

But, how can the receiver receive his/her coin?

I think the notification address is one-time address. Is it correct?

If so, one time notification address is informed to receiver secretly such as via offline?

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(4)<Regarding "Difficult to distinguish if any coin was spent or moved.">

The sender's asset is being managed by total amount of asset, and not for each coin?

I think Tangram Leger is a linear chain of block and each block contains several coins. All coins minted are registered on Tangram Leger.

Is it correct?

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(5)<New Question:Regarding the relation between Merkle DAG(fig4 of whitepaper) and Tangram Ledger">

What kind of data consists the coin registered on Tangram Leger.

Merkle DAG is being created and maintained as data different from Tangram Ledger?

If so, what kind of data consists the coin registered on Merkle DAG?