"blockchain_market_order_book <quote> <base>" shows the order book. The order of the currencies given is important - if you receive an "invalid market" message, try swapping the currency symbols. Example:

>>> blockchain_market_order_book USD BTS
     BIDS (* Short, + Relative, - Relative Limit)                            |                                   ASKS                                 
TOTAL                     QUANTITY                                     PRICE | PRICE                                        QUANTITY                     TOTAL   COLLATERAL
-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
849.9251 USD              100,291.17310 BTS               0.008474576271 USD*| 0.008983918785 USD                        3.07216 BTS                0.0276 USD
463.3051 USD              54,670.00194 BTS                0.008474576271 USD*| 0.008984725966 USD                        2.30392 BTS                0.0207 USD
...
-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
                             SHORT WALL                                      |                                   MARGIN                                 
TOTAL                     QUANTITY                       INTEREST RATE (APR) | CALL PRICE                                   QUANTITY                     TOTAL   COLLATERAL    EXPIRES
-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
                                                                             | 0.004026912700 USD                   18,624.67120 BTS               99.9999 USD      5 days in the future   37,249.34241 BTS
...
Maximum Short Price: 0.00905770052507467 USD / BTS     

Note that the base and quote currencies are swapped as compared to the GUI. This also means the prices are inverted, and you have to think of buying/selling BTS for BitUSD.

In the above example, on the ASK side someone is trying to sell 3.07216 BTS at a price of 0.008983918785 USD/BTS for a total of 0.0276 USD (so actually he's trying to buy .0276 USD for 111.31 BTS/USD). On the BID side, someone is trying to buy 100,291 BTS at 0.008474576271 USD/BTS (so actually he's trying to sell 849.9251 USD at 118 BTS/USD). The asterisk on the BID side indicates that this is not a normal BID but a SHORT.

At the bottom, on the left side you can see the SHORT WALL (i. e. all shorts currently executing at the price feed), and on the right side an incomplete list of open cover orders with their margin price and expiration time. The last line contains the price feed.

So, if you want to buy some BitUSD from the short above you have to place an ASK order like this:

wallet_market_submit_ask <account_name> 291 BTS 0.008474576 USD
Similarly, to sell your BitUSD to the above ask you have to place a BID:

wallet_market_submit_bid <account_name> 3.07216 BTS 0.00898392 USD
Note that due to rounding issues it is a good idea to bid a slightly higher price and to ask a slightly lower price.

I tested a small exchange of 100 BTS into BTC using API calls and it went through smoothly. Good work!

Only I can't get the getMyLastTransactions to return anything, no matter if I provide the deposit address or the memo. It always comes back with an empty list.

And for the wishlist: it would be nice if getOrderStatus could be used with a short transaction id prefix, as displayed by wallet_account_transaction_history.

PR submitted: https://github.com/BitShares/fc/pull/4

Speedup of --rebuild-index is insignificant on my system, around 5%. Possibly more on an SSD. The indexing is heavy on IO, so not much speedup to be expected here.

Speedup of wallet_rescan_blockchain is 4% for the mixed implementation and 25% for pure libsecp256k1.

IMO the BitShares API documentation is much more detailed than for example bitcoin's. What API documentation have they looked at? The wiki only, or the built-in help?

Maybe point them here:

https://github.com/BitShares/bitshares/blob/master/libraries/api/blockchain_api.json
https://github.com/BitShares/bitshares/blob/master/libraries/api/wallet_api.json

Yesterday one of my wallets got corrupted. It had been open + unlocked for a couple of days. When I tried shut down the client I had to kill it, apparently one thread was stuck in a loop or something. After restarting, I couldn't open the wallet anymore. The attempt fails with something about a checksum mismatch. One possible cause is that the partition where the wallet is stored became full at some point in time (but the client never gave me an error message and continued to work just fine while it was running).

Importing an old backup + regenerating keys restored my balances completely AFAICT, only the tx history shows me many UNKNOWNs in market orders.

können wir nicht einfach folgendes machen:

index (BTSMPACAP5) = supplybitUSD*USDpriceInUSD + supplybitGOLD*GOLDpriceInUSD + supplybitSILVER*SILVERpriceInUSD + supplybitSILVER*EUROpriceInUSD ...

Was soll der Index denn ausdrücken? Nach der obigen Formel würde z. B.

* der Indexwert steigen, wenn jemand eins der Assets shortet
* der Indexwert steigen, wenn der USD gegenüber den anderen Assets schwächelt
* der Indexwert steigen, wenn der Goldpreis gegenüber dem USD steigt
...

Ist das sinnvoll? IMO nicht sehr - am Ende ist der Index reziprok an den USD gekoppelt.

taja .. und schön können delegates einen preis für den Index publishen ..

der index soll doch ein MPA werden oder?

Hm... wenn der Index sich aus den vorhandenen Marktwerten berechnet, dann wären zusätzliche Delegate-Feeds hierfür redundant. Im Grunde müsste man eine neue Klasse Assets schaffen, nämlich Derivate. Derivate verhalten sich wie MPAs, aber der Feed wird nach einer vorgegebenen Formel aus vorhandenen Daten berechnet.

Thanks for your well-written proposal!

Could you clarify two things:

* What qualifies you as a law school graduate for a job in marketing?
* How many readers does yBitcoin have?

Thanks,
Peter