Tectum is a software development company that over the years has worked not only in the crypto sector (blockchain, distributed ledgers and cryptocurrencies) but also on secure messaging and authentication.
A very interesting solution is SoftNote which combines blockchain technology and papercash (very useful in the retail sector). The idea is to combine cryptocurrency and paper money, allowing practically free and instant transactions, via the blockchain world. As you all know, using blockchain is essential if you want to make payments free from censorship and without having to ask anyone for permission. One of the biggest problems in the blockchain world is the well-known "Trilemma":

1) Security
2) Decentralization
3) Scalability

If you improve 2 of the 3 factors, you worsen the third. For example, BTC is very decentralized and secure but is not very scalable (i.e. it is slow and expensive. Today a single transaction costs $20-30 due to network congestion caused to the diffusion of Ordinals). Solana, on the other hand, is very scalable but not very secure and relatively decentralized. Solana's great scalability makes it economical to spam transactions leading to network congestion. SoftNote instead tries to reduce transaction costs to zero by using superconducting digital environment technology, eliminating fees and delays. The system used is to "transport" value and therefore money (in reality Tectum is based on a distributed ledger without transactions or confirmations). The TPS should be greater than 1.3 million (Solana has a TPS of 60,000 in an ideal scenario but works excellently with max 5000 TPS. Bitcoin has 7 TPS, Ethereum has 25 TPS, etc). The consensus system is the "Proof Of Utility".
Softnote still resembles paper money in that it is essentially a value printed on a piece of paper, such as an image file. It does not require confirmation on the blockchain, the value is already contained in SoftNote and can be used directly for invoice settlements.

SIMPLIFIED OPERATION OF THE PAYMENT SYSTEM
The "value" sent via Softnote is backed by BTC and USDT representing the store of value, with serial numbers and denominations specified on the banknotes: $1, $2, $3, $50, etc This procedure allows the passage of liquidity from one party to another, obviously the receiving party can verify the balance of the Store of Value by checking the Bitcoin explorer.
SoftNote also provides more anonymity to users than Bitcoin. You will know that on-chain transactions are easily traceable by typing the public address into the explorer. However, because SoftNote "passages" are not natively recorded on the network, it is difficult to trace their origin.
SoftNote does not require both parties to be connected to the blockchain, only the recipient. This allows the recipient to verify that the SoftNote is indeed a store of value and is making a valid transfer of value. If the recipient is able to verify the value received from SoftNote, the payment is instantaneous (an access code makes the payment sent to unauthorized parties unusable).
Payments can be made from device to device or using any device capable of transferring image files. Therefore it is a technology that is in the middle between blockchain and traditional payment systems, taking the best from both sectors. Tectum also introduced an authentication method called XFA that leverages quantum-proof cryptographic proofs (3FA). For more info: The Ultimate Monetary System

TET TOKEN 
The Tectum ecosystem also has a native $TET token with a maximum supply of 10 million. What is the token for?
1) It is used as gas to pay the standard Layer1 and T12 token fees
2) Merchants pay fees in $TET
3) Mint softnote
4) Holders receive allocations to pre-incubated projects and access to Tectum products

You can find the token on Bitget, Mexc and on dex (Uniswap). For more info: Tokenomics

SIMPLIFIED GUIDE
1) To get your Wallet go to: Softnote (Wallet)
2) Once the account is registered you will have your wallet with functions such as "Mint", "Fill", "Burn". A minter spends theit $TET to mint a SoftNote pack of 100 bills (each bills --> unique serial number. Afterwards the BTC quantity is transferred to dedicated address). The "fill" function is LP type (transfer of BTC to the SoftNote wallet). Then when a Softnote with liquidity is sold, global circulation of the transferred value occurs.

CONCLUSIONS
I hope that after this article you will have clearer ideas on how Softnote works and its advantages: scalability and security.
What do SoftNotes look like? You can see that it is an image with a QR code (you can have BTC, TRX, USDT for now).Of course you can send (mail, WhatsApp, Telegram, etc) or print it and give it to someone. BTC's Paper Wallet reminds that they always use the Bitcoin blockchain so they suffer from the scalability problem. Certainly a system of this type, in addition to the instant and almost free transfer of value, also guarantees extreme ease of use once the Softnote has been received. The idea of having spendable cryptocurrencies similar to banknotes with instant and practically free transfers is something that has never been seen before. 

SOCIAL CONTACTS
Tectum (X aka Twitter)
Tectum (Telegram)
Tectum (Facebook)