Here are the details, as updated in the original post:

BlockShares Sales (BEGINNING AT 14:00 UTC, MAY 16, 2015):

Total BlockShares supply: ~162,000 BKS
- ~80,000 BKS (50% of total supply) will be sold here beginning May 16, 2015.
- ~80,000 BKS (50% of total supply) will be held by NuShare holders who own NSR at the initial fork date.
- 2,000 BKS will be given to Bitcoin holders as per the design document’s original specified proportion.

We will be selling BlockShares in the following manner:

First ~20,000 BKS (exactly 25% of available BKS) are available for $5.00 US each.
Second ~20,000 BKS (exactly 25% of available BKS) are available for $5.10 US each.
Third ~20,000 BKS (exactly 25% of available BKS) are available for $5.20 US each.
Final ~20,000 BKS (exactly 25% of available BKS) are available for $5.30 US each.

TOTAL: ~80,000 BKS for an average price of $5.15 US each.

Make a purchase by emailing nsrauction@vistomail.com or sending a BitMessage to BM-2cTihATJ5FwJ7vWBwZmJjr55eFPFWBCmCQ. Please ensure you provide us with the information requested below. You must contact us at or after 14:00 UTC May 16, 2015. No early purchases will be accepted to ensure fairness for everyone.

Note: The total amount of BKS sold here will be the blockchain quantity of NSR minus the undistributed NSR divided by 10,000, at the moment of the fork. Should NuShareholders vote for a 100,000,000 NSR expansion in their supply to raise it to 900,000,000 NSR for example, ~90,000 BKS would be sold here and ~90,000 BKS would be reserved for NuShareholders. We want to be very clear that half of BKS equity is for sale here, and half of BKS equity will be granted to NuShare holders. The Nu network will be granted 50% of all BKS to encourage active involvement with B&C Exchange. Liquidity is the lifeblood of an exchange and B&C Exchange will benefit from Nu’s liquidity providers.

As well, the following rules apply:

- Minimum total purchase is 500 USD.
- Purchasers will be kept confidential.
- Multiple purchases are allowed, but only up to a maximum of 10,000 BKS in total across all purchases.
- A valid purchase will contain three elements: a quantity of BlockShares, the asset type you will pay with (BTC, LTC, PPC or NBT), and finally a cryptocurrency forum username (bitcointalk, discuss.nubits.com, or others) that is a minimum of one week old as of the date of this new announcement.
- The price of BTC will be set on the day a purchase request is made using the Bitfinex BTC/USD market price. LTC and PPC, being less liquid and subject to price manipulation, will be priced as the average of the BTC-e LTC/USD and PPC/USD price 48 hours before a purchase request is made, 24 hours before a purchase request is made and at the time the purchase request is made. NBT will be priced at 1.00 USD per NBT.
- Purchasers should have the funds to settle immediately.
- As with the previous auction, we will make no promises about the future value of BlockShares.
- No funds will be collected until $200,000 US worth of BlockShares are requested for purchase. This is the minimum amount of funds required to build B&C Exchange. After this threshold is reached, sales will continue until all BlockShares are sold, or until BlockShares holders vote to burn (destroy) all unsold BlockShares.