XRP work just like BTC
No. BTCs are mined. A BTC is a proof of work.
XRPs are issued by opencoin. Opencoin can issue as many XRP as they want.
A BTC is not a proof of work, you can obtain them without having done any mining.
Also they are fungible, meaning that you can spend a BTC that was created when difficulty was still 1 the same as a recent one with difficulty far OVER 9000.
As I already said: I don't believe Opencoin (with whom I'm not affiliated in any way) will issue any more XRP, you're free to suggest a formal bet (in BTC with escrow and whatnot) on that to me.
Your client most likely also doesn't trace back to the coinbase transaction (except if you are using colored coins).
Anyways, as I "don't answer your questions" let me have a last try:
uuuh.. what?
Are you serious or just trolling? honest question.
I'm serious.
Also, you never explained why 'it's not true' that XRPs cannot be issued at will. Explain me how I can be sure of that. We all know and can verify the proof of work of every last bitcoin. What about XRPs, how can I be sure opencoin doesn't start issuing them at will?
You cannot be sure, jsut as you cannot be sure that there will be 21 million Bitcoins ever. There is no inherent limit in the underlying mathematics, so any limit (100 billion XRP, 21 million BTC) is an arbitrary choice that is done by a community in the case of Bitcoin and a company in the case of XRP. In both cases it is against their expressed intent to issue more currency than initially planned. Both currencies are not backed by anything really but their utility as money and the trust of their respective community. Just as the Bitcoin community would probably react negatively or even hostile towards anyone changing the maximum amount of Bitcoins, a similar loss in trust would be the case with Opencoin + XRP inflation.
As I said, you cannot be sure with any cryptocurrency that rules won't change BUT it is in the best interest of the ones running that currency to make sure to deliver on their promises as they are mainly backed by trust and utility, not gold or a country.
Proof of Work is not magically limiting your Bitcoins to 21 millions, there are PoW coins out there with different/no limits and some with all/lots of coins mined in the genesis block.
Cut to the chase. What do I verify when verify a XRP?
I'm not 100% sure what you mean by "verifying", I assumed that you mean "check, if that transaction I received actually is valid, has been finalized in the global ledger and I can spend the money I received". My answer has been "it works just like BTC" which was not enough for you.
You verify the transactions in the blocks aka. ledger since genesis, just like in Bitcoin.
After your transaction is in there, you can spend the money with your private key. It does not matter when it has been created, just like in Bitcoin, as long as the transaction used to send it to you was valid, the XRP/BTC are valid too.
how can XRP have any value if it's possible for anyone to run their own Ripple network ie. the software is open source?
how can BTC have any value if it's possible for anyone to run their own Bitcoin network ie. the software is open source?