OPAL guides

[Voidlord]

- OPAL GUIDE -

Learn how to safely then simply use cryptocurrencies

V1.9 Published April, 12h 2015, By Tristan Kissourine, Founder of the Opal embassy, Marseille, France

Content :
 

  -1. Downloading the Opalcoin wallet
  -2. Before we start, preparation
  -3. Starting the Opalcoin wallet
  -4. Wallet encryption
  -5. Wallet Managment
  -6. The Opalcoin wallet
  -7. Get your first free opal
  -8. Explaining Staking
  -9. Mining Opals
  -10. Checking the Opal wallet authenticity
  -11. Colorcore Frequently Asked Questions
  -12. Repair your Wallet

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[Voidlord]

1. Downloading the wallet

Opalcoin is a secure and decentralized transaction network with very low fees.
It is also a cryptocurrency (just like Bitcoin). So if you are looking for a good system to pay, be paid, exchange and economize, you are reading the good guide :

Plus, you will master a powerful cryptocurrency, which aims simplicity, security and cool features such as :
    
a system which allows you to anonymously exchange opals and words.
a clean and understandable wallet
an authenticity, via a unique multi-layer security process.
and with our upcoming developments : Opal Drive, Opal Marketplace...


 Opalcoin also called Opal is a Proof of Stake coin (PoS), which means each connected wallet earns a fraction of opalcoin each day, opalcoins are quite rares as there are a total of 15,000,000 coins plus 5% of annual interest to reward connected wallets.
The fact to set a wallet connected to earn opalcoin is called « Staking »

Opalcoin is open source, everyone can follow it, study it and, as Galactomurakh the architect* says: « to see flaws, not a single hydrogen must be hidden »

To use opalcoin, the only thing you need is a software called the wallet, plus some opals.

We will give you free opals in the part 7 of this guide.


To start you need to download the wallet :

it's the software you will use to manage your opals (store, send and receive opal)
Opalcoin wallet has other features too, like anonymous transactions, sending encrypted message, in wallet trading, statistics... but for now : go to www.opal-coin.com and click wallet downloads, choose the wallet which fits your Operating system : Windows, Linux, Mac OSX or Androïd.


Reminder: you must always download your wallet on the official website :



a little help for windows users : extract it in a well known folder (right-click and choose extract), and right-click on Opal-Qt.exe to create a shortcut, then copy this shortcut on your Desktop.

[Voidlord]

2. Before we start, preparation :


0. We advice Windows users to clean their computer with Malwarebytes :

1st for Mozilla users, you can clean your Firefox by typing in the URL bar about:support
Then click on Repair Firefox

you can find Malwarebytes here : https://www.malwarebytes.org/


When installing Malwarebytes, there will be a window which will ask you if you want to test for free the premium version : reply « no » (uncheck it).

Maybe Malwarebytes will ask you to update its database, update it.
If Malwarebytes don't ask you, go to the update menu and update malwarebytes.

    -open the start menu (the windows flag for windows 8 )
    -type:
msconfig.exe
then press Enter.

    -click the "Boot" Tab and choose "Safe boot", choose "Minimal" then click "ok"
restart your computer.

Your Computer will restart under a primitive safe mode, design may be rude:)

Plug all your USB flash drive. Double-click on Malwarebytes, and start a complete scan.

    -Quarantine all the stuff you find.
(except maybe your Cgminer, Sgminer, cudaminer software if your computer is a crypto-miner). if you find a Backdoor, a Trojan or a worm: Change all your password (use different passwords for each tools/forum/mail).

The scan may take 1 hour to 4 hours, depending the power of your computer.

    -After the scan, you must uncheck the safeboot mode : open the start menu
 (the windows flag for windows 8 ) and type: msconfig.exe then press Enter.

     click the "Boot" Tab and uncheck "Safe boot", then select "Make all boot settings permanent".

     then click "ok", then "yes" (on the poped-up system configuration windows) and " then "restart".


You now have a clean computer.

[Voidlord]

3. Starting the Opalcoin wallet and good rules on the Internet:


You can double click on the Opal-Qt shortcut to open your Opal wallet:


The first time you launch the Opal wallet, you will have to wait 2 or 3 hours : the blockchain must be synchronized with the Opal network.


Take a part of this time to learn the basics of a very good security on the Internet (after all we are speaking about currency so you deserve the maximum security:)


-1 use different password for each tool you use (emails, websites,social medias,  forums, games...), and when login, never use the "keep me signed-in" or "remember me" button, also set your browser to never keep any password or cookies once you shut it down.

-2 never click anywhere, obviously on unknown message, on a box telling you "your computer is slow/infected/corrupted".

-3 never click on a url or a link embedded in an email, except for the confirmation email you just received from a log in.

-4 never open any attached doc in an email: download it, save it, and scan it with your Antivirus.

-5 never use a kind of computer booster software or any torrent, downloader on the computer you used to install your wallet.

-6 use Mozilla Firefox, it is more secure than other browser, (note: if you used Chrome before, i suggest you to uninstall it as Chrome slows Firefox !!!), never record password with your browser.

-7 scan each downloads you make with your antivirus (except maybe windows update): dont scan the .zip or .rar file: extract them first AND scan the extracted folders.

-8 make your updates at least these: Windows update, Firefox update, Adobe Flash & Acrobat update, but also Java and Silverlight's update.

-9 for Laptops and Smartphones: turn off the bluetooth connection (a security shame, never use it): For windows Click Menu Start, choose "Control Panel" , click "Network and Internet, then click "Network and Sharing Center" (on the left column)
then click on "Change adapter settings" Right click "Bluetooth Network Connection", select "Disable" and confirm.

-10 clean your computer with Malwarebytes each month or when you have a doubt if you just dont respect the above steps:) clean your computer using the process in step 0.
just dont trust your antivirus, do it.

[Voidlord]

4. Wallet encryption



Once your wallet is synchronized, you need to encrypt your Wallet : this is a very important step.

On your Wallet Dashboard:
Click on "Settings" and choose "Encrypt Wallet"
Choose a password which contains at least 26 characters with not only lowercase : add a few uppercase, numbers and special characters : & ? " $ £ ' - _ ! %

a tip ? : choose something from a book, a sound and transform it a little bit :

example :
Dont step on my blue suede shoes   Change it to :  ?d0ntsteponmyBlueSu6deSh£es

note it very clearly, with black ink on a pocket book and put this pocket book in a safe place.

[Voidlord]

5.Wallet managment Backup the wallet.dat file & wallets definition


Now you must learn how to make a backup of your wallet.dat file
don't be confused :
wallet.dat is the file which store your amount of coins,

Opalcoin Wallet is the usual name we give to Crypto-Qt client.
for Opal it is Opal-Qt or Opalcoin-Qt:



Step 1 : in your Opalcoin Wallet, click "File" then "Backup Wallet..."

Make 2 backups : one in another folder in your hard drive and do another backup in a usb stick and in case of hard drive failure.

Step 2 : Now you need to know the path where you can manage the wallet.dat file :

on Windows :  C/\Users\Your user name\Appdata\Roaming\Opalcoin



Note: If you can't see your AppData folder : you will need to set your folder preferences in Windows to view normally hidden folders and files :

Open "my computer" and click "Organize" then click "Folder and Search Options",
Then click "Show hidden files, folders and drives" :



on Linux :

By default Opalcoin will put its data here:
~/.opalcoin/
You need to do a "ls -a" to see directories that start with a dot.
If that's not it, you can do a search like this:
find / -name wallet.dat -print 2>/dev/null

on Mac :

By default Opalcoin will put its data here:
~/Library/Application Support/Opalcoin/

the main files inside this Opalcoin folder are :

.lock : BDB lock file (Berkeley DataBase lock file)
blkxxxx.dat : Contains concatenated raw blocks. Stored are actual Opalcoin blocks, in network format, dumped to disk raw.
db.log
debug.log : a useful file in order to fix issues.
opalcoin.conf (optional, in order to add nodes to speed up the connection)
peers.dat : Storage for peer information to make a reconnect easier.
Wallet.dat : which stores your opals.


The most important file is your wallet.dat file, storing your balance information. The other files can be deleted and will be recreated fresh when your wallet will restart.

When you delete all the files except your wallet.dat (to solve some synchronisation issue for example) restart your Opal-Qt wallet and it will begin to re-sync from the start of the chain.
If you deleted your wallet.dat, remember you made a first backup:

-Wait untill the end of the synchronization to see your opals, close your Opal-Qt wallet
-Then copy the wallet.dat you saved in another folder (see step 1)
-Go to the path where the wallet.dat should be (see step 2)
-Paste the wallet.dat

[Voidlord]

6. the Opalcoin wallet:

-Dashboard : an Overview of your wallet, your Opalcoin amounts the Spendable and the Staked ones, the unconfirmed coins. In the right side «Recent Transaction, you can see up to the 6 last transactions :



-Receive : it is where you edit your receiving addresses : the addresses you give to someone who want to send you opal.
At first, you dont have any receiving addresses : to create on, just click « New Address », in the label field, type the name of your payer or the name of the address type if you want to receive opal from different payer (i.e : Saving, opal for staking, Opal games...)



Note that with opal, you can create an Opaque address : which are perfect to receive anonymous payment : the transactions can only be seen by the payer and the receiver. Just check the « opaque address » in the little window which pop after clicking on « New Address »
« Sign Message » and « enter SuperNET » are not ready yet, it will be released soon !

In order to use an address (to give it to your payer for example), you only need to right-click on it and choose « copy address », then you paste it where your payer asked you (email reply, chat, forum...)

Send : is the window you use to pay someone, it is explicit :


Pay to : paste the receiver address
Label : name this address in order to know the owner
Narration : you can add here a short 24 characters text
Amount : enter the amount of opal you want to send


Transactions : is the view where you can check all your transactions,
the staking rewards, noted as Mined, the sent and the received one :




The Other Features are :
 

Address book : which index all the addresses to which you sent opals.

Statistics : which show you the network statistics.

Block explorer : which allow you to look at all the Block and transaction history

IRC : which allow you to chat with Opal members and Opal Team (as helpdesk)

Opacity : which allow you to send and receive encrypted message :

Click on "Opacity", and Click "Conversation" at the bottom of your wallet,
then fill the "Send To" : with your reader address and write !



When your message is ready, just click "send"


Trade : allows you to see the price of an opal in bitcoin. You can also see the volume in Bitcoin and in Opal, allows you to buy or sells opals.
The exchange used is Bittrex.
I will teach you about the settings you need to trade from inside your wallet in a next update of this guide, stay tuned !





EnterSuperNET : Entering the SuperNET ecosystem which federate several cryptocurrency : under integration, be patient.

[Voidlord]

7. Get your first free opals

To get your 100 first free opals, you just have to :

Like our Facebook page : www.facebook.com/opalcommunity and leave a comment which includes one of your opal address in the 12th april post which cointains this logo:

[Voidlord]

8. Explaining Staking


If you have opalcoin you can "stake" them, doing so you anonymously specify a verified opal amount to the Opal network and you participate to secure it. you be rewarded with a 5% annual interest extracted each day. This amount of staked coins will fluctuates, dont worry.

1. Click the little padlock on the bottom left of the wallet
2. Check "For Staking Only" and enter your password (or passphrase).



Click "Ok"

wait 30 seconds the grey arrow (next to the padlock) turns green and

Welcome,  you are a part of the Opalcoin stakers !

[Voidlord]

9. Mining Opals

As we said above, Opalcoin is now a Proof of Stake coin , and all the coins have been already extracted, so how can you mine it ? By using Altnuts SuperNET Multipool !

...Here, no registration needed, quickly we will need copypaste altnuts address, add your opal address and let it crush with the SuperNET Multipool !

http://altnuts.com

 For those who are new with mining, here is a complete guide:
Windows OS and AMD Graphic card.

You need to:
have decent drivers: at least 14.6:
 http://support.amd.com/en-us/download/

Download & install Microsoft.NET 4.5 framework :
 http://www.microsoft.com/fr-fr/download/details.aspx?id=42642

Download & install AMD APP SDK (for Windows 32 bits) -> http://developer.amd.com/tools-and-sdks/opencl-zone/amd-accelerated-parallel-processing-app-sdk/
Go to the second board AMD APP SDK v2.9.1 and choose the correct one (for Windows 32 or for Windows 64 bits).
download and extract sph-sgminer x11mod -> https://github.com/lasybear/sph-sgminer_x11mod (i like the 4.1.0)

Then you need to create the .conf file

Remember the extension must be seen, to be sure:

Windows 8 : Open a File Explorer window and click the "View" tab and tick "File name extensions".

Windows 7/vista : Open Windows Explorer and click the "Organize" button towards the top left. Choose "Folder and search options" from the menu. Then click the "View" tab in the window that opens, then scroll down and untick "Hide file extensions for known file types".

9.1 Mining Opals


So create a new text document with your notepad and copy/paste the following: (remember to edit oYOUR_OPAL_ADDRE55):

Code:

{
"pools" : [
    {
        "url" : "stratum+tcp://stratum1.altnuts.com:5555",
        "user" : "oYOUR_OPAL_ADDRE55",
        "pass" : "your_password"
    }
]
,
"intensity" : "16",
"worksize" : "256",
"kernel" : "x11mod",
"lookup-gap" : "2",
"thread-concurrency" : "8192",
"shaders" : "0",
"gpu-threads" : "2",
"gpu-engine" : "1050",
"gpu-fan" : "0-0",
"gpu-memclock" : "1500",
"gpu-memdiff" : "0",
"gpu-powertune" : "0",
"gpu-vddc" : "0.000",
"temp-cutoff" : "87",
"temp-overheat" : "83",
"temp-target" : "75"
}

... Save this file as sgminer.conf in your sph-sgminer x11mod folder beware not to save it as sgminer.conf.txt.
To be sure search to folder options and  Click the View tab, and then, under Advanced settings then clear the Hide extensions for known file types check box, and then click OK.

These settings work for AMD 7970, R9 270x, R9 280x.
You should change thread-concurrency, gpu-engine, intensity (usually 13-18) and gpu-memclock values to fit your GPU habits. (if you change thread-concurrency, delete the x11modXXXXXXg2tcXXXXwXXXl4.bin file in your sph-sgminer x11mod folder).

In order to change your gpu-engine and gpu-memclock value please read https://litecoin.info/Mining_hardware_comparison, the "C" Column is for gpu-engine value and the "M" is for gpu-memclock values.

(remember that if you want to change settings when the sgminer.conf is saved you must right-click and choose edit, instead of open)

Now create another text document with your notepad and copy/paste:

Code:

setx GPU_MAX_ALLOC_PERCENT 100
setx GPU_USE_SYNC_OBJECTS 1
sgminer.exe -k x11mod -o stratum+tcp://stratum1.altnuts.com:5555 -u oYOUR_OPAL_ADDRE55 -p your_password

-Save this file as for example Buyopal.bat in your sph-sgminer x11mod folder
 (beware not to save it as Buyopal.bat.txt)

-Create a shortcut that you cut/paste on your desktop: to start mining, just double click this Buyopal.bat shortcut ! be patient, first time it take 30 seconds to run.

For more info, please dont spam this topic and read the topic of lasybear https://bitcointalk.org/index.php?topic=623409.0

You must not have Hardware error "HW" in Sgminer, even a few, if so please read https://bitcointalk.org/index.php?topic=623409.msg7615953#msg7615953

If you succeed, well done, you are now a crypto-miner !

[choochimil]

Didn't read all, but looks very informative for a newbie. It does indicate OPAL is serious about reaching new users.

[Voidlord]

Didn't read all, but looks very informative for a newbie. It does indicate OPAL is serious about reaching new users.

Hi choochimil, Yes we don't see beginners as newbies or noobs, we only see early adopters, and early adopters are not all tech savvy: reason of this thread.

[Voidlord]

10. Checking the Opal wallet Authenticity




Gemlock is a decisive tools in our security roadmap, soon, Opal user will check, directly inside his wallet if this one is the good one (the last and certified one) and if it is not corrupted !

How it works ?
by comparing the SHA1 checksums of your Opal wallet and the official Opal wallet.

Does it work ?
yes, but it is not yet automated.

Let's get checking our last wallet, (here is the tuto):

For WINDOWS users:

1. Go to C: create a new folder and name it FCIV
2. Download the File Checksum Integrity verifier : http://download.microsoft.com/download/c/f/4/cf454ae0-a4bb-4123-8333-a1b6737712f7/Windows-KB841290-x86-ENU.exe
3. In the file download box, click Save and save the file in the FCIV folder
4. Go to your FCIV folder and double-click on Windows-KB841290-x86-ENU.exe  then click ok
5. Click ok to extract the file (if asked, extract the file in the FCIV folder),
6. Double click fciv.exe to run it.
7. Click start ,on the search field type:

Code:

cmd.exe

Press enter, then click cmd.exe
8. On this black command prompt,
type

Code:

set path=%path%;c:\fciv

Press Enter

9. Download your favorite wallet on www.opal-coin.com at the Download Wallets.

10. Type (and replace the .zip file with the wallet you downloaded, as there are 3 different wallets).

Code:

fciv.exe -sha1 c:\the full path\where you downloaded\Opalcoin-Qt-exchange.zip

the SHA1 checksum is the 40 numbers and letters, after File Checksum Integrity Verifier version 2.05,
example: 4c56186623bbaa7c2fea980b042270beafd3b53f c:\the full path\where you downloaded\Opalcoin-Qt-exchange.zip

11. Now, type:

Code:

nslookup

And press Enter
it will displays your DNS sometime we encounter surprise here so you can check if they are yours, or if you have a box: if they are those of your ISP, type "Your ISP name DNS" in google to know them, and... anyway we need to type it

12. Type:

Code:

set querytype=TXT

Press Enter

13. Type:

Code:

checksums.opal-coin.com

Press Enter
This order displays the genuine Opalcoin SHA1 checksums (the 40 numbers and letters).

14. Compare this guenuine SHA1 with the checksum fciv.exe gave you: they MUST be the same.
(beware to check the SHA1 of the good wallet as there are three Opalcoin client, to check it, just look at the name of your Opalcoin-Qt-Folder. Now in the command prompt look at the one which match with your Opalcoin-Qt)

 If the SHA1s are not the same: Close your wallet, save the wallet.dat in a easy retrievable folder (but not into your Opalcoin-Qt folder and not into : C:\Users\YourUserName\Appdata\Roaming\Opalcoin),
go to C:\Users\YourUserName\Appdata\Roaming\ and delete the folder Opalcoin, go to your Opalcoin-Qt folder you use to launch your wallet, delete the Opalcoin-Qt folder.

Type:

Code:

exit

Press Enter to quit the nslookup utility.

Go to www.opal-coin.com and click wallet download, choose the walllet you need.

Now it is simple and cool, if you want to test again your last download from this simili-trusted pseudo-true opal-coin.com  (maybe you were not on the right official website )

Type (and replace the .zip file with the wallet you downloaded, as there are 3 different wallets)
fciv.exe -sha1 c:\the full path\where you downloaded\Opalcoin-Qt-exchange.zip
Enter, check.

If the SHA1s are the same: Well done you have a certified official Opal wallet !
 
You can now run it, let it sync, (it is quite long : 2 to several hours) and close it.
Go to C:\Users\YourUserName\Appdata\Roaming\Opalcoin
and put your saved wallet.dat into the folder. now start again your wallet: and stake cool !

_________________________

For LINUX users:

1. Start a shell / terminal, i.e. a text based command line utility

2. Go to the directory to which you downloaded the wallet software by typing the following command to the terminal, followed by enter, replacing “ /path/to/download folder ” by the actual location of the folder where you downloaded the wallet software :

Code:

cd “ /path/to/download folder ”

3. Type the following command to the terminal window, followed by enter, replacing “ Opal-Qt-opaque.zip ” with the name of the file you downloaded:

Code:

sha1sum Opal-Qt-opaque.zip

The sha1sum command outputs a line similar to this: 3a099ff6e8831885b00431bee693ea40b3ff9e39" Opal-Qt-opaque.zip Take note of the random-looking 40 characters string. It is the SHA1 checksum of the file you have downloaded. Now compare it to the checksum provided by the DNS system at step 7.

4. Start the DNS lookup utility by typing:

Code:

nslookup

followed by enter:

5. At the nslookup utility prompt (>), type the below command, followed by enter:

Code:

set querytype=TXT

6. Now type the address provided by the wallet developers to the nslookup utility prompt, followed by enter:

Code:

checksums.opal-coin.com

Take note of the 40 characters SHA1 checksums returned: checksums.opal-coin.com text = "Opal-Qt-opaque.zip 3a099ff6e8831885b00431bee693ea40b3ff9e39"

7. Compare the SHA1 checksum created at step 3 to the one provided for the same file by the DNS service at step 6. If checksums are identical : the wallet file you downloaded is genuine. If the checksums are different, make sure the version of the wallet  you have downloaded is the latest one, and repeat all of the above steps. If the checksums are different after couple of hours have passed, please contact the Opal developers for advice.

_________________________

For MAC users:

1. Open a Terminal (located in: /Applications/Utilities).
2. InsideTerminal prompt, type:

Code:

openssl sha1 /Your_full/path_to_file/Opaque-Final-Mac.zip

Press Enter

It dipslays the SHA1 checksum you will have to compare: 40 numbers and letters, here in red:
SHA1(/Your_full/path_to_file/Opaque-Final-Mac.zip) 3eb807b340d4e57aa79bb5422b94d556888bba60
with the SHA1 checksum of the official and certified opal wallets in the nslookup utility:

3.Type nslookup
Press Enter

4. After (>) type:

Code:

set querytype=TXT

Press Enter

5. Type:

Code:

checksums.opal-coin.com

Press Enter

6. Compare the SHA1 checksum returned (still 40 numbers and letters), here in red with your wallet checksum, above:
something like: checksums.opal-coin.com text = "Opaque-Final-Mac.zip 3eb807b340d4e57aa79bb5422b94d556888bba60"

7.Type:

Code:

exit

Press Enter to quit the nslookup utility.

If SHA1 checksums are the same, it means the wallet software file you downloaded is genuine. If the checksums are different, close your wallet, save the wallet.dat in another well known folder. then uninstall your Opalcoin-QT and download the latest version at www.opal-coin.com

Obviously, you can now quickly check your brand new latest download:
in the terminal type:

Code:

openssl sha1 /Your_full/path_to_file/Opaque-Final-Mac.zip

Press Enter and compare with the Opaque-Final-Mac.zip checksum of your last nslookup. if it is still different, call a developper on IRC : http://webchat.freenode.net/ channel : #opalcoin

If the SHA1s are the same: Well done you have a certified official Opal wallet !

The next step into security is to automate these processes, stay tuned ...

(P.S: thanks to Jyri from altcoin.center for the linux tutorial)
(P.S #2: the checksums written here are not real, these are just examples)

[Voidlord]

11. Colorcore Frequently Asked Questions

What is colored coin and colored opal ?
By coloring an opal you turn it into a token that represents anything you want to trade: Shares, Gold, Houses, Artwork, Commodities....
Colored Coins enable us to create Smart Property on top of the Opal blockchain.

Smart properties are transferable like tickets and certificates, and in addition, every particular smart property is both unique and atomic. Only one smart property of a given identifier can be created, and once created it may not be subdivided.
Smart properties can be used to indicate ownership of an unique real-world asset.

Do i need a specific wallet to use Colored opal ?
Yes, you need an color-aware wallet: the colorcore web wallet

What features is included in the Colorcore?
the Colorcore includes:
-Client Side Encryption: Nobody can't touch your funds.
-Easy Crowdfunding Tools
-A colored coins block explorer
-2 Factor Authentification and more...

What is the benefit of colored opal ?
Instead of just sending cash through the Opal network, you can use it to trade anything you want.
With colored opal we can explore new possibilities like advanced financial tools, smart contracts and peer-to-peer exchange over the Internet.
Colored coins adds a new layer to Opal that make it much more useful.

How can i get colored opal ?
There’s no need to purchase extra coins, just use regular Opal and the colorcore wallet to create and transfer assets.

Do i need development skills to create such property, such asset ?
No, you dont need any technical skills to create colored coins.

Do you need to change the protocol ?
No, you must see colored opal technology as an implementation in the form of a floating set of specifications that can be implemented in third-party Qt clients, rather than in the protocol itself.

Did colored opal work with opaque technology ?
Not currently...

Is colored opal value as the same value as classic opal ?
Yes, an opal is an opal, but you should see a colored coins as a tool: a token, a title, a key...
color a coin is like writing something unique on it.
A good example is: color a coin which represents the car and who owns that coin owns the car.
A futuristic example will be: Only people who sign an address holding a colored coin can use that car.
The buyer gives you 10,000 Opals, and you give him the colored coins, the key which allow the buyer (and nobody else) to open it, start it... use it.

Can i modify a colored opal into a classic opal ?
Yes.

Does colored coin need a centralized "coloring transaction server", are there nodes that do the verification and storage ?
No, it is completly decentralized.

How does this technically work ?
for such technical approach, please read: https://docs.google.com/document/d/1AnkP_cVZTCMLIzw4DvsW6M8Q2JC0lIzrTLuoWu2z1BE/edit


What is the limit of colored opal ?
Your, Our imaginations. You are free to link anything which can be trade...  without central authority, notarial act, or middlemen...
to give you ideas, let's list examples:

-Shares A company could issue colored coins representing shares. The shares could then be traded frictionlessly through the Opal infrastructure.
-Backed coin A bank could issue colored coins backed by a cash reserve. People could withdraw and deposit money in colored coins, and trade those, or use them to pay for goods and services. The Blockchain becomes a system allowing to transact not only in Opal, but in any currency.

-Locks on cars or houses could be associated with a particular type of colored coins. The door would only open when presented with a wallet containing that specific coin.

-Tickets are transferable bearer tokens which are designed to be eventually redeemed for some kind of real world value.

Examples of tickets include:
Event entry passes
Store coupons and special offers
Frequent flyer miles and other redeemable rewards

-Certificates are transferable and redeemable in the same manner as tickets, and they additionally entitle the bearer to some kind of revenue paid through the blockchain.
Certificates can be used for bearer securities, such as securitized loans, mortgages, bonds, and dividend-paying stocks.

....the potential is huge, we do not believe we have fully mapped out all the possibilities it opens up !