Electronic signature and blockchain

1.

Electronic contract itself is a kind of electronic data, which has security defects such as easy to tamper and delete, which is not concive to the long-term development of the service. In order to ensure the legal effect of the electronic documents and electronic contracts signed by users on the electronic contract platform, it is necessary to deposit the whole process of electronic contract signing

in the application of "legal chain" based on blockchain certificate keeping technology, the platform will archive the key links of electronic contract signing, and store the key information and data in the whole blockchain, so as to realize the whole process of electronic contract certificate keeping

in-depth study of its implementation principle, blockchain uses cryptography algorithm, specially designed data structure and multi-party consensus algorithm to solve the consistency, reliable storage and anti tampering problems of multi-party transaction records by machine algorithm, which has a strong natural relationship with electronic data storage

First of all, the electronic contract signing records are stored in a shared account book jointly maintained by multiple parties, which can not be tampered with, denied or lost

secondly, the text and elements of the electronic contract are encrypted, including the participants of the electronic contract. Only the participants can decrypt and view the data to protect the privacy of the parties

thirdly, the machine strictly implements the pre-defined rules (smart contract), and no longer relies on a single agreement with a third party. KYC service based on blockchain automatically checks and verifies the validity and identity of certificates, and ensures the authenticity of participants' identities on the basis of privacy

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at present, the electronic contracts signed on our electronic contract platform have realized the distributed storage of digital fingerprints of electronic documents through blockchain technology, which further strengthens the legal effect of the platform's electronic contracts

2. It is a good choice to invest in the blockchain project of Buka instry, which is developed by local cooperation in Bougainville Island, including five types of core businesses.

3.

It refers to the data contained and attached in the electronic form in the data message, which is used to identify the identity of the signer and indicate that the signer recognizes the content

electronic signature is not a digital image of written signature. It is actually an electronic code, with which the recipient can easily verify the identity and signature of the sender on the Internet. It can also verify whether the original text of the file has changed ring transmission. If someone wants to send an important document to people in other places through the network, both the recipient and the sender need to apply for an electronic license from a Ca (Global sign). The encrypted certificate includes the applicant's public key on the Internet, namely & quot; Public computer password;, Used for file validation

the sender encrypts the file with the recipient's public key issued by Ca, and signs the file with his own key. After receiving the document, the recipient first resolves the signature with the sender's public key pair to prove that the document is actually sent by the sender. Then use your private key to decrypt the file and read it

From the definition of e-signature, we can see two basic functions of e-signature:

(1) identify the signer

(2) indicate the signer's approval of the content. In the definition of e-signature, technology neutrality is fully considered, and the provisions on e-signature are extracted according to the basic functions of signature, It is considered that all electronic technical means that meet the basic functions of signature can be regarded as electronic signature. From the definition of electronic signature and digital signature, we can see that they are different: electronic signature is put forward from the perspective of law, and it is technology neutral. Any electronic technical means that meets the basic functions of signature can be called electronic signature; Digital signature is proposed from the technical point of view, which requires the use of cryptographic technology. Its main purpose is to confirm the source of data unit and the integrity of data unit

electronic signature is a generalized concept, digital signature can be considered as a way to realize electronic signature, and digital signature provides higher functions than electronic signature

4. The Ponzi scheme of selling Futong village can also be recovered or sealed up through normal proceres. Therefore, such a scheme can be severely punished by law

5. Exorcist prequel<
director: Rene Harlin
screenwriter: Alexi Hawley
Starring: Stan scargaard / Isabella scholupko / James Darcy
type: Horror / horror
proction country / region: USA
Language: English
release date: August 20, 2004
length: 114 minutes

6. Unknown_Error

7. Is your 1800kW installed capacity or operating capacity< Assuming that your operating capacity is 1800kW, the calculation power is 1800x0.85 (demand factor) = 1530kw
simple calculation algorithm for transformer capacity:
1530x0.9 (simultaneous factor) / 0.93 (power factor after compensation) / 75% (economic operation proportion of new transformers) = 1974.2kva, so two 1000 transformers can be selected for parallel operation.

8. The software of those loans on the Internet is not reliable. I still think it is more reliable to apply directly to the bank. At the very least, banks will not be usury, routine loans, strict proceres, low single interest costs, high safety factor.

9. Honey travel how to enter the graphic verification code, this is not very understanding, do not know how to enter.