Timestamp
Copyrobo offers copyright timestamps using both Blockchain and Qualified Timestamp Authorities. Chose the one that is right for you.

What Is Timestamping

Timestamping is a common technique used to track the time and date of filing and authenticity of a document, video or image. A clerk stamps your document with the date, time (and sometimes adds a signature) to provide proof that you submitted this document at this time. Stamping prevents anyone, including the owner, from changing the document.
Modern electronic timestamping offers the same assurances with greater security and more convenience:
  • A unique digital fingerprint (commonly referred to as hash value or just hash) is calculated from a file. A similar but altered file would result in a different hash and it is virtually impossible for anyone to duplicate hash from the file.
  • The computer generates a timestamp, adds it to the file hash, and then generates another unique hash that is derived from both pieces of data.
  • The computer then generates an encrypted private key that allows only the key holder to access the recording of the timestamp and file.
  • The owner receives the hash and private key (the signed hash) and timestamp information, which when stored with the original document, provides proof that the exact document or image was timestamped. The process is completely confidential because only the derived hash is stored on the computer, not the file. (It is not possible to recreate the file from the hash.)
Most modern timestamping relies on trusted agents for timestamping. These are often government-authorized third-party companies entrusted with running computer systems that process and record timestamps. Some are even qualified by the European Union or governments as meeting the highest security standards.

Qualified Timestamp

Qualified Timestamp authorities provide copyright holders with timestamps that offer stronger protection, greater deterrence, and better opportunities to win substantive court judgments against infringers.
Copyrobo
The European Union offers the most comprehensive set of requirements governing qualified electronic timestamps under eIDAS, which is EU Regulation No. 910/2014. (For details, see Section 6, Articles 41 and 42.) Published on 23 July 2014, eIDAS became binding on all EU member states on I July 2016.

eIDAS prohibits courts from denying the legal admissibility of timestamps as evidence solely because the timestamp was made electronically or because the timestamp does not meet the more stringent requirements of an EU qualified timestamp. European courts cannot deny your timestamp evidence solely because it was made electronically.
Timestamps issued by qualified EU authorities, such as Germany’s Exceet and Estonia’s SK (SK ID Solutions AS), offer additional advantages. Courts are required to accept the validity of four attributes of qualified timestamps: date, time, content, and the certificate of the timestamping authority. Moreover, a qualified electronic timestamp issued in one member state is recognized as a qualified electronic timestamp in all member states.
Copyrobo
Evidence produced by qualified timestamp authorities have higher probative value because these companies must do the following to meet eIDAS qualifications:
  • Bind the date and time to the data in the timestamp in a way that precludes the possibility of the data being changed undetectably.
  • Base the timestamp on an accurate and approved time source.
  • Sign (individual) or seal (corporate) the timestamp using advanced technologies described elsewhere in eIDAS.
The United States (and most of the rest of the world) has yet to unify or fully embrace advanced electronic timestamping authority, although electronic timestamps are considered acceptable evidence in most jurisdictions.

Copyrobo offers eIDAS qualified electronic timestamps through Exceet Secure Solutions from Düsseldorf, Germany and SK (SK ID Solutions AS) from Tallinn, Estonia. Electronic timestamps issued by Exceet and SK meet eIDAS requirements and are accepted as highly probative evidence in all European member states.

A few countries also promote electronic timestamping through their own laws and regulations (some of which may be equivalent to eIDAS) and some may be accepted in other countries on a reciprocal basis. Copyrobo offers electronic timestamping options for France, Spain, Slovakia and Turkey: Copyrobo provides you a wide range of choices to meet your needs. Laws governing the probative value of copyright evidence are complex. Please consult laws, regulations, third-party websites, and especially advisors for legal advice about your specific copyright protection needs.

Blockchain Timestamp

Blockchain offers the latest iteration of timestamping technology. Rather than relying on a trusted third-party agent for timestamping, Blockchain utilizes a decentralized tamper-proof virtual ledger on a distributed peer-to-peer network to record and verify timestamps. Authorities around the world are increasingly accepting the superiority of transactions recorded on Blockchain ledgers.

Blockchain digitally records the ownership of assets by creating a unique cryptographic signature that is timestamped and linked to a “chain” of prior blocks. Each record or “block” relies on the cryptography of the previous block to ensure the integrity of the entire chain. No block can be changed without breaking the integrity of the entire chain. Thus, the chain provides a complete, verifiable and auditable history of a sequence of transactions. No third-party is necessary to verify a transaction.

Copyrobo’s blockchain timestamping merges the hash values derived from your files and Ownership Signature with the unique hash value derived from Bitcoin and/or Ethereum transactions, thereby providing incontrovertible proof of your timestamped data.

Verification

After each Copyright Service, you will receive a timestamped file and hash value (SHA256) that is sent to your email or optionally, can also be sent to your drive storage such as G.drive, Dropbox, Box... Together these files constitute proof of your timestamp. To protect your privacy, Copyrobo does not keep your file or timestamped evidence. Therefore, you need to secure these files to be able to prove and verify your works.

Why Do I Verify?
Verification of timestamps is used for establishing evidence that a given piece of data existed at a given point in time. There may be occasions when you will need to verify your timestamp evidence to make sure it is still valid or should someone contest your copyright. Thus, you can use your evidence to warn the infringers or for any other legal action.

How to Verify?
It depends on your timestamp option, your timestamped file's hash value stored with us, blockchain network (bitcoin, ethereum…) and/or qualified authorities. Thus, you can either check validity via Copyrobo or Block Explorers (for bitcoin and ethereum) or directly through Qualified Timestamp Authorities (QTSA).

Your timestamp evidence can be verified over Copyrobo’s web application through the blockchain network and using the RFC 3161 timestamp protocol. You will be charged one (1) credit for each verification whether the data is valid or invalid. To start verification, choose your Authority/Blockchain option that you used for your copyright service file. For example, if you chose to timestamp your file through Bitcoin blockchain, then select the same under the Authority & Blockchain option. Then, prepare the files on your desktop based on the example below.

Example:
1. Authority & Blockchain Bitcoin Blockchain (BTC)
2. Timestamped File Filename1234ABCD.zip
3. Hash Value Filename1234ABCD.zip.btc

Download the evidences
Once Copyrobo’s copyright service is completed, you will receive an email with the attached evidences and unique CopyrightKey Notice link. Please separately download the timestamped file and the hash value from your email (or from where it is stored) to desktop and make sure these files have not changed or been modified before (including the file names).

Important:
1. Copyrobo, QTSA and Block Explorers may use different time zones and standards such as Greenwich Mean Time (GMT) Zone and Coordinated Universal Time (UTC) Standard. Therefore, you may need to convert the displayed time to your local time zone.
2. Make sure your timestamped file or hash value are correct and hasn't been modified otherwise you can not verify them or verification result will be invalid. If so, you can try downloading your timestamped file and hash value again from where it is stored to your desktop.
3. If your timestamped file is in zip format (contain your file and ownership signature) and you have only changed the Zip File name, you can still use verification service, but if you have changed the filename that is contained in the Zip File, your verification result will be invalid therefore you will need to download your timestamped Zip File again.
Your timestamp evidence can be directly verified via Qualified Timestamp Authorities (QTSA) verification tools (web app, java applet, desktop app or others). Note that this is an external verification done outside of the Copyrobo web application and hence, different charges/processes may apply.

To start verification with your chosen QTSA:
  1. Visit the relevant website using these links:
  2. Prepare the files on your desktop based on the example below:
    i) QTSA Exceet (Germany)
    ii) Timestamped File Filename1234ABCD.zip
    iii) Hash Value Filename1234ABCD.zip.exceet

Download the evidences:
Once Copyrobo’s copyright service is completed, you will receive an email with the attached evidences and unique CopyrightKey Notice link. Please separately download the timestamped file and the hash value from your email (or from where it is stored) to desktop and make sure these files have not changed or been modified before (including the file names).

Important:
1. Copyrobo, QTSA and Block Explorers may use different time zones and standards such as Greenwich Mean Time (GMT) Zone and Coordinated Universal Time (UTC) Standard. Therefore, you may need to convert the displayed time to your local time zone.
2. Make sure your timestamped file or hash value are correct and hasn't been modified otherwise you can not verify them or verification result will be invalid. If so, you can try downloading your timestamped file and hash value again from where it is stored to your desktop.
3. If your timestamped file is in zip format (contain your file and ownership signature) and you have only changed the Zip File name, you can still use verification service, but if you have changed the filename that is contained in the Zip File, your verification result will be invalid therefore you will need to download your timestamped Zip File again.
For each copyright service, Copyrobo uses your preferred cryptocurrency or other methods for blockchain timestamping, thus a Transaction ID (TXID or TXHash) will be created and available momentarily on the public blockchain. Through Block Explorers, you will be able to verify that your file was certified in the blockchain.
Step 1. Open CopyrightKey Notice link:
Once Copyrobo’s copyright service is completed, you will receive an email with the attached evidences and unique CopyrightKey Notice link. This link is also present on your Copyrobo user account under the Activities tab on the website & mobile apps. Once you click on this link, you can find which timestamp options were used for your copyright service with the related Transaction ID and Hash Value (fingerprint) of your timestamped file.

Step 2. Choose your Bitcoin Block Explorer:
Search on the internet for ‘’Bitcoin Block Explorers’’ or use one of these websites; Blockchain.info, Blockcypher.com, Blocktrail.com, Bitpay.com, Blockr.io and Chain.so to check/search for your Transaction ID. These are public blockchain explorers, which can be used to view all previous transactions made on the blockchain.

For the following steps, we use Blockchain.info to explain the verification process. If you are using other block explorers you may see different layouts, terms/titles or information.

Step 3. Verifying through Blockchain.info:

a) Open Blockchain.info

b) Enter your Transaction ID in the search area. If entered correctly, you will see your Transaction ID on the screen. If entered incorrectly, the search pattern will be unrecognized. (Note that any blockchain transaction may normally take hours for confirmation, so if you verify a file soon after it has been timestamped, you will see a message stating “Unconfirmed Transaction.”)

c) Find‘’Output Scripts’’ and ‘’OP_RETURN’’ to see your timestamped file’s Hash Value with the embedded ‘’COPYROBO’’ mark. If you do not see these titles, then scroll down and click on Scripts -> Show scripts & coinbase.


Step 4. Checking the Hash Value:

a) The displayed hash value on CopyrightKey Notice and the Block Explorer (under OP_RETURN) page has to be the same, thus it proves your timestamped file is valid and has not changed since its creation as long as the calculation is done from the original timestamped file.

b) To make sure that the evidence you received is correct, you can easily check the calculation of your timestamped file’s hash value. To do this, please search on the Internet for ‘’online hash calculator sha256’’ or use this website md5file.com;

i) Open md5file.com/calculator
ii) Download your timestamped zip file from your email (or wherever it is stored) to desktop.
iii) Select/drag/drop the required file.
iv) Check the resulting hash calculation for SHA-256.

c) If this information matches with the one on the Block Explorer (under OP_RETURN), this means your timestamped file was successfully certified in the blockchain and has not changed since it was created. If it does not match, this means the timestamped file is not the right one or has been changed since it was created.


Important:
1. Copyrobo, QTSA and Block Explorers may use different time zones and standards such as Greenwich Mean Time (GMT) Zone and Coordinated Universal Time (UTC) Standard. Therefore, you may need to convert the displayed time to your local time zone.
2. All public blockchain explorers can be used to search for Transaction ID (TXID or TXHash) however, they also focus on various categories and hence, the blockchain transaction history is designed/structured based on that specific category(s) such as money (spent-unspent), contracts, registrations, identity, balances of bitcoin addresses… For verification of copyright purposes, it is only important to check the Transaction ID, Date, Confirmation and Hash Value.
3. Before using any online hash calculators, make sure your timestamped file or hash value hasn't been modified otherwise you cannot see the same hash value on the Block Explorer’s page. If so, you can try downloading your timestamped file and hash value from where it is stored to your desktop.
4. If your timestamped file is in zip format (contain your file and ownership signature) and you have only changed the Zip File name, you can still use verification service, but if you have changed the filename that is contained in the Zip File, your verification result will be invalid therefore you will need to download your timestamped Zip File again.
Step 1. Open CopyrightKey Notice link:
Once Copyrobo’s copyright service is completed, you will receive an email with the attached evidences and unique CopyrightKey Notice link. This link is also present on your Copyrobo user account under the Activities tab on the website & mobile apps. Once you click on this link, you can find which timestamp options were used for your copyright service with the related Transaction ID and Hash Value (fingerprint) of your timestamped file.

Step 2. Choose your Ethereum Block Explorer:
Search on the Internet for ‘’Ethereum Block Explorer’’ or use one of these websites: Etherscan.io, Etherchain.org to check/search for your Transaction ID (TxHash). These are public blockchain explorers, which can be used to view all previous transactions made on the blockchain.

For the following steps, we use Etherscan.io to explain the verification process. If you are using other block explorers, you may see different layouts, terms/titles or information.

Step 3. Verifying through Etherscan.io:

a) Open Etherscan.io

b) Enter your Transaction ID in the search area. If entered correctly, you will see your Transaction ID on the screen. If entered incorrectly, you will see invalid search string warning. (Note that any blockchain transaction may normally take hours for confirmation)

c) From the resulting information, please find ‘’Input Data’’ and click on ‘’Convert To Ascii’’ to see your timestamped file’s Hash Value.


Step 4. Checking the Hash Value:

a) The displayed hash value on CopyrightKey Notice and the Block Explorer (under Input Data) page has to be the same, thus it proves your timestamped file is valid and has not changed since its creation as long as the calculation is done from the original timestamped file.

b) To make sure that the evidence you received is correct, you can easily check the calculation of your timestamped file’s hash value. To do this, please search on the Internet for ‘’online hash calculator sha256’’ or use this website md5file.com;

i) Open md5file.com/calculator
ii) Download your timestamped zip file from your email (or wherever it is stored) to desktop.
iii) Select/drag/drop the required file.
iv) Check the resulting hash calculation for SHA-256.

c) If this information matches with the one on the Block Explorer (under Input Data), this means your timestamped file was successfully certified in the blockchain and has not changed since it was created. If it does not match, this means the timestamped file is not the right one or has been changed since it was created.


Important:
1. Copyrobo, QTSA and Block Explorers may use different time zones and standards such as Greenwich Mean Time (GMT) Zone and Coordinated Universal Time (UTC) Standard. Therefore, you may need to convert the displayed time to your local time zone.
2. All public blockchain explorers can be used to search for Transaction ID (TXID or TXHash) however, they also focus on various categories and hence, the blockchain transaction history is designed/structured based on that specific category(s) such as money (spent-unspent), contracts, registrations, identity, balances of bitcoin addresses… For verification of copyright purposes, it is only important to check the Transaction ID, Date, Confirmation and Hash Value.
3. Before using any online hash calculators, make sure your timestamped file or hash value hasn't been modified otherwise you cannot see the same hash value on the Block Explorer’s page. If so, you can try downloading your timestamped file and hash value from where it is stored to your desktop.
4. If your timestamped file is in zip format (contain your file and ownership signature) and you have only changed the Zip File name, you can still use verification service, but if you have changed the filename that is contained in the Zip File, your verification result will be invalid therefore you will need to download your timestamped Zip File again.

Disclaimer. The content provided on this Site should not be construed as legal advice or legal opinion on any matter. Laws, regulations, and their interpretation can change rapidly, can be different and can also vary from place to place. The information is not guaranteed to be correct, complete or current.