It's now illegal to purchase an old baby crib, but you can give it away free with the purchase of the mattress. Seems odd, but that's what happening.
Heh, that's an old trick that ticket scalpers tried ... and the reason they use that is not necessarily to make them less likely to get busted, but actually to make the buyer feel more comfortable about making the purchase. (which is really bizarre, because buying a ticket above face value is not against the law, just selling the ticket above face is where the problem arises in most jurisdictions.) Here's an example: - http://www.lsureveille.com/news/the-c-section-free-football-ticket-with-50-pen-an-illegal-scalping-tactic-1.2629704But Bitcoin is different, .. it isn't against the law to trade. At some level of trading it may become necessary in some jurisdictions to register as a money service business but if you are describing how miners can sell a few BTCs on ebay, I hardly would think that would apply. So it is simply a matter of PayPal's user agreement prohibiting the use of PayPal's payment network when trading bitcoins. And as long as you as a seller aren't relying on PayPal to help you should a chargeback occur and don't mind them freezing your account and holding any funds that you had in the account (or doing a clawback against your bank account even), sure -- your idea should work just fine. |
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Data looks like it is missing most of September. Data issues?
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TransactionRadar.com has an API, and I believe this could be used to help to detect when a race attack for double spending is in progress. - http://transactionradar.comUse of this for sending a subsequent "warning" notification should a double spend attempt be detected would be useful. |
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does it grows unlimited?
can i shrink it somehow?
Yes, wallet.dat will continue to grow as you receive transactions. Is it really a problem? Rarely it will get above a few MB for the typical user. One method to "shrink" a wallet is to create a new one and send funds from the old one to it. Though if you ever receive additional payments to addresses in the old wallet they don't automatically go to the new wallet. Are you instead referring to the blockchain (the blk*.dat files?) That is growing continuously and is nearing 1 GB of storage. (Though for most computing systems, 1 GB is a trivial amount of storage) |
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well, just like playing with the house's money in vegas ... sign me up for $1
sgornick
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This is so close to having a low-tech Do-It-Yourself paper-based solution for merchants. With this, the merchant pre-prints out a batch of these with the public-key only (and its QR Code) on paper (such as blank personal check paper stock) (see below) http://www.amazon.com/VersaCheck-Refills-Personal-Wallet-Prestige/dp/B00134O78SAnd then generated is the merchant's master (see below) to be kept secure which contains the public-key (& QR Code) and also the private key (& QR Code) for redeeming. Then at the point of sale the cashier has a supply of these pre-printed "check" blanks with Bitcoin addresses (see below). When the purchase occurs, the cashier fills in the amount and invoice # (or other identifier for matching to the point of sale transaction) and provides the check blank to the customer. The customer, using a mobile, scans the QR code and sends the bitcoins. The merchant's back-office already has the address registered with BitcoinNotify.com so when payment is made (on 0/unconfirmed) an email (or SMS) is received. - http://bitcoinnotify.comThe cashier places the check in the drawer as the customer has paid and proceeds with completing the sale. After the shift, the merchant's bookkeeper matches up the checks from the drawer against the corresponding master which has the private key, scans the key and spends those funds to the merchant's master wallet / consolidation address. The "master" strip can then be stapled to the check and archived for records storage without having to further worry about securing the private key. This could work. Here's what I picture a batch of three checks looking like: [Edit: obviously, each of the three would have a unique bitcoin address code, but being lazy, I just did a copy and paste using the same code for all three]  And the merchant's masters corresponding to the checks:  |
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They would have to destructively tear off the hologram to read the key. Would there be any relatively common scanning technologies (such as those used at a forensic lab or for medical purposes?) that could read this code without tampering with the sticker? |
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Why did you have to spam my inbox with this? Appears that I too received from this exchange an unsolicited commercial email (UCE, aka spam) at an email address that was only used with Mt. Gox, one of the 30,000 email addresses now "out in the wild" after the June Mt. Gox hack. We don't know the circumstances with this mail campaign -- perhaps there was a misunderstanding with a third party opt-in service or something. Generally, however -- an organization asking for trust (holding customer's funds or bitcoins) shouldn't engage in activities such as spamming in which trust becomes instantly obliterated. |
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I don't need more convenience at the expense of my every move and purchase being tracked, logged, and sold to corporations to develop their advertising focus.
Just wait until you see what they are doing next ... Movenbank - Banking w/ their KYC based on mandatory Twitter, Facebook and Mobile w/ NFC - http://www.banking4tomorrow.com/2011/09/the-reboot-of-banking-now-the-work-starts SynerScope - Link your bank transactions with every other transaction about you. "Connecting the dots" with web traffic, payment transactions, mobile call records, IRC logs, etc. - http://synerscope.com/products |
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Someone was screwing with the network at the time, I would guess.
OK, I am only halfway thru this thread, but I had to comment on this before I read the rest......... How is it possible for someone to "screwing with the network at the time," It probably was referring to how the timestamps do not necessarily have to be in chronological order -- due to having tolerance. - http://en.bitcoin.it/wiki/Block_timestamp |
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I see the site has changed and now says it is undergoing "finalized support for market makers". - https://bitoption.org |
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A date would be good though for collector's value sake. The transaction when funds were "loaded" to the physical bitcoin has a date and time. |
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there will be situations where you cant check is the address really have that bitcoins or not, so i expect ppl will make offline bitcoins checkers, if the date is on the coin ppl can easily accept or not the bill/coin
I'm trying to understand how having the item marked with the date helps to make it easier (safer ?) to accept. |
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The purpose of the video will be to educate non bitcoiners and to hopefully draw them into the bitcoin experience. Then you definitely want to touch on http://www.casascius.comAlso, as person-to-person (P2P) purchases increases with recent innovations such as AirBNB and Zaarly, for instance, or even for purchases with the older P2P methods, eBay and Craiglist, there are instances where escrow would be useful. One of the more widely used Bitcoin escrow services is BTCrow.com -- perhaps that would be a great service to feature. |
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