Quote from: drazvan on May 01, 2014, 03:28:07 PM

That sounds like a good idea - although I'm not sure a web service is needed to do the change. If you want to split 1 BTC into 10 * 100mBTC or 100 * 10mBTC you can always go through Bitcoin (that is redeem a 1 BTC OtherCoin, then feed the balance into 10 or 100 smaller OtherCoins).

A web service could be useful though for premium services - that is the ability to split a larger coin into smaller ones without advertising this on the Bitcoin network and also getting confirmed or balance certified coins in return. So you would give the service your 1 BTC OtherCoin and it would give you 10 * 0.1BTC OtherCoins with more than 6 confirmations on their balance (or simply with a signed balance - regardless of the number of confirmations).
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Hi Drazvan,

Here are the advantages for a web change service that I had in mind-

These two you have already pointed out:

-Speed of receiving pre-confirmed (and certified) coins is the main advantange of using a web-service for change. The service will be more or less instant when compared to creating change coins on the block chain and waiting for them to confirm at the time of the transaction (in cases where the receiver insists on confirmed coins).

- Anonymity offered to the sender since they're not using their own wallet address to create the coin, the person recieving dosen't get to see any of the wallet addresses of the sender.

There are also a couple of others that I have thought of:

- You can offer a service guarantee that all the coins that you have personally created and certified are clear of taint from the major theft events (clear of publicly recorded/verified affected addresses atleast). The person receiving the coins doesn't have to check them against the block-chain for taint.

- it may be cheaper to use the web-service. Since the web-service has plenty of time to pre-make coins it can use lower-priority transactions (even feeless ones if the service operator waits a long time). So the web-service can sell their change coins cheaper than a person can make them for themselves if the person has to make it confirm quickly (ie: in the next block) at the time of the transaction.

The speed and the cheapness form the main economic case that I can see for the web-service being successful/profitable.