Casascius physical bitcoins – Bitcoin Wiki

Casascius physical bitcoins – Bitcoin Wiki

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Casascius physical bitcoins, also called Casascius coins, are physical metal coins created by Bitcoin user Casascius (Mike Caldwell, Sandy, Utah, USA) and sold until Nov 26, 2013 [1] , that contain an embedded chunk of paper with digital Bitcoin value, covered by a tamper-resistant hologram. Casascius coins are available te 1, Ten, 25, 100, and 1000 BTC increments. They can be purchased at Casascius’s webstek, https://www.casascius.com (only Bitcoin accepted), or at http://www.MemoryDealers.com (PayPal and credit cards accepted).

The coins are designed such that they could be circulated ter face-to-face transactions. The very first person to redeem its private key gets the value on the coin, and afterwards, the coin no longer has any Bitcoin value. It is difficult or unlikely to read the private key on the coin without hurting or demolishing the hologram, which exposes a honeycomb-like tamper-evidence pattern when peeled.

The lump of paper inwards each coin has a private key which forms the backing for the Bitcoin value represented by the coin. Redeeming the private key back into digital Bitcoins is presently available with a patched reference client and many of the alternative clients.

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Casascius coins are similar to Bitbills te that they are an object that contains a redemption code that serves spil a bearer voorwerp for digital bitcoins.

There are Two independent websites that track the status of all Casascius coins ter circulation, based on information from the block chain:

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Contents

History

Originally, Mike Caldwell imagined placing a private key on a chunk of paper inwards a washer with a tamper-evident hologram on each side. However, he found it wasgoed more economical to have a vivo coin minted with a hologram on one side than to have two different hologram designs, and so the very first Casascius coins were customized brass coins ordered from a mint that makes car wash tokens. [Two]

Suspension of sale

Spil of Nov 27, 2013, Mike Caldwell suspended sales of items that contain digital bitcoins. [1] The Financial Crimes Enforcement Network (FinCEN), a branch of the Treasury Department, informed him before, that minting physical bitcoins qualifies him spil a money transmitter business, which means he needs to register at the federal level and most likely get state licenses too. [Trio]

Releases of Casascius coins

Diferente series 1 BTC coin

  • 1.125 inches ter middellijn
  • Solid brass
  • Year printed on coins: 2011
  • Approximately 0.24 ounces
  • Eight-digit “firstbits” inkjetted onto surface of hologram sticker
  • Very first appeared te September 2011 [Four] .
  • Private key: 22 character string inwards the coin, the 256-bit private key is SHA256(string)
  • Approximate number produced: Trio,500 spil of November 2011
  • A spelling error can be found te the petite lettering of the hologram: “CASACIUS” instead of “CASASCIUS”
  • Casascius has stated that no more than 11,000 may be produced
  • All 11,000 Bitcoin addresses pre-generated for the series have bot published spil a signed text verkeersopstopping

2nd series 1 BTC coin

The hologram and the private key is different, the metal part of the coin is the same spil the very first series.

  • 1.125 inches te middellijn
  • Solid brass
  • Year printed on coins: 2011
  • Approximately 0.24 ounces
  • Denomination (“ONE BTC”) shows up on the hologram
  • Eight-digit “firstbits” visible through a puny semi-transparent window that permits limited visibility of one side of the private key paper
  • Private key: 30 character string inwards the coin, the 256-private key is SHA256(string)
  • Very first appeared ter November 2011
  • No spelling error ter hologram

2 thoughts on “Casascius physical bitcoins – Bitcoin Wiki

  1. Spil long spil you’ve never collective your address, you should be good. It’s fine if they know you’re dealing with the currency, but if they didn’t have access to it before, they shouldn’t now.

  2. Well Also it depends upon the court if they are willing to let you off the hook for your bitcoins wallet..but if the judge knows about the bitcoins.. then you are dead meat.

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