reserved

   
                 I have been a stamp collector for over 40 years. Once I became a physical bitcoin collector, I always wanted to see someone make a stamp loaded with actual Bitcoin on it.

                So in 2017 I created the first loaded physical bitcoin stamp that was actually posted and used in the USA as you can see here  https://bitcointalk.org/index.php?topic=2097158.msg20957878#msg20957878

                I let it go at that and waited for someone else or some government agency to take up the torch and produce their own version of a physical Bitcoin. I waited for years and nothing happened...I mean yes, they did issue stamps with other crypto coins on them, but none of them were Bitcoin.

                So a few weeks back, I started this mind game for people to be able to sweep some bitcoin out of a digital bitcoin stamp similar to what I made back in  2017.
                 http://www.crypto-stamps.com/private3.html

                It was a hit amongst some people here but for whatever reason it was moved to the gambling section as it was not deemed a physical collectable item.
https:/bitcointalk.org/index.php?topic=5317293.0

                Well......that got me into thinking of making a physical bitcoin stamp to give away! Its something I should have done years ago.....make my own actual physical stamps and also be allowed to give them away or sell them as I please as well.

                That being said, I bought and created a website here>>  www.cypherpostage.com or www.cypherstamps.com.

                Designed a new stamp and generated the public and private keys on an air-gapped computer.

                The stamps will be placed on an envelope and inside the sealed envelope are all the keys for the private key as well as the password.

               

                Winner or buyer will need to load with face value prior to shipping!



Can these stamp be used for posting items?

The answer is no, these are novelty collectable stamps that are one of the first of their kind in the world in having physical bitcoins on them. Just like Bitbills and Casascius not being real government issues cards/coins, the same apply to these stamps. They are made by Cypher Postage as a tribute to Bitcoin and all the physical bitcoin collectors around the world.

                  Full disclosure…
                The stamps were sent out to be made to a stamp manufacturer, so yes the private keys have been exposed to someone besides myself. I had to make a minimum of 10 sheets per order so I have 9 sheets that are available to give away or sell but will never be able to be swept…as the word specimen and a postmark will be written over the QR codes and of course the passwords will not be provided with them.

                The passwords on these stamps are at least 17 scrambled letters numbers and figures that according to https://password.kaspersky.com/ will take centuries to solve.

                If you feel uncomfortable about this, then please do not buy or participate in this game. Other than that, they will be close to impossible to brute force.

                As you can see I have had a stamp online loaded with 0.02btc for the past 4 years and it has not been swept at all. http://www.crypto-stamps.com/

                So for now I have created one sheet with 20 stamps on it. Along with this sheet came 9 other sheets that were made as specimens.

                 The first block of 4 stamps and 5 sheets  I will keep in my possession as part of my personal collection.

                  Stamp #20 will be given away for free in a mind game to be announced later. And perhaps I  shall give out more as well…we shall see in what mood I am in.

                  Maybe stamps #5 thru 19 will be auctioned off separately.

                  The specimen sheets, 5 will be kept in my personal collection. The other 4 will be auctioned off or given away in these games.

                  I will probably issue more than 20 and I also have different artwork and values all set to be made...all depending if I am in a good mood.

                  And yes these are all numbered and limited editions of probably 100 of each value. So very collectable!

                  Please keep in mind these specimen sheets are identical to the actual stamps loaded but the owner will not be able to sweep the private key unless he has the complex password that only envelope hodlers will be able to have.

                   
                                     

                   You can read more about Cypher Stamps here www.cypherpostage.com

                    I am also working on creating these at home with self perforated papers in the works..in other words future ones will not be sent out for printing, private keys will never be exposed to another person and only one sheet per stamp will ever be produced….so no specimens at all. But that is not a promise. By the way in the real postage word, there are also specimen stamps sent out to postmasters so they were able to identify valid stamps. So yes very collectable in philately.

  This thread has a good escrow list as well https://bitcointalk.org/index.php?topic=276897.0

 Thanks for bringing this up...that is scary. Please keep us updated.

Here ya go guys!  Will be posting a new one soon...so stay tuned.

I have dealt with Dave for years..never had to do escrow and he always came thru with the correct items.

Mistakes happen and this an oversight that could have happened to the best of us.

  Congratulations!  Job well done mate..... I have something brewing up my sleeve far better than this....stay in tune

 Horizontal, vertical and diagonal.

Well....here is another nice challenge that I think will be a bit harder and fun.....





   



     But thats not it, you need to wait until the 21st February to broadcast this timelock code. So in other words even though you have figured out the password for the private key, there is no bitcoin in the stamp. The coins will be available AFTER you broadcast the raw Hex code on that day, then the stamp will be loaded, then you can sweep.

    Keep in mind its for Sun Feb 21 2021 00:00:14 EST. Blockchain takes a median time, in other words even if you transmit at exactly that time, an error might come up, as the median time lags behind real time, even up to an hour or two depending on how long the blocks take to be added to blockchain.













     So to recap,

      a) Solve the word puzzle by finding the names of 20 forum members

      b) Place names in alphabetical order

      c) Take the first letter of each name and altogether they will be the password required to unlock the private key

      d) Broadcast the raw hex code here https://blockstream.info/tx/push on the 21st February 2021.

      e) Once that is done, the stamp will then be loaded with Bitcoin.

      f) Sweep the private QR code stamp with the correct password consisting of the first letters of each members name from the word puzzle in alphabetical order.

     
   So even though you figure out the password now, you will still have to wait until Sunday, so many people can have figured it out, but still you have to beat your other competitors to broadcasting the raw TX and then sweeping.  Goodluck!!!
     

  Lefty and righty when punching...

     Every possible key caps symbols all been hit randomly...call it a drunken keyboard dance. 

  Its worth close to $1000....I do hope I remember where I placed that damn password....

Well....been asked about that loaded online stamps password http://www.crypto-stamps.com/private3.html..which I think according to https://www.betterbuys.com/estimating-password-cracking-times/ will take about forever to figure it out.

   So that being said, I made another one loaded with about $5 worth of BTC or 0.00010246BTC.

    The BIP38 password is the answer to the following riddle....Goodluck! 

    Red as fire, yet fire I am not
    Green as grass, yet grass I am not
    Water I have, yet a lake I am not.
   
     What am I?

   Thanks will look into this....it is interesting.

  Thankyou will follow these steps.

  Aye...I am doing that now and have just tried my first CTLV loading address. I set it for 4 hours in the future.

   What I do not understand is, I gave them my pub key and they then gave me a script..>What exactly do I do with that? I cannot broadcast it at all.

   I loaded the key HODL key and I have required signature key which is the original pub address I created on my paper wallet generator.

   So what are the next steps? I sweep the private key once say 4 pm is reached and automatically the signature key pub adddress is loaded?

  Also how do I see the Hodl key on blockchain to see that is timelocked? I know I can see the balance, but what is telling me that it is timelocked for the time I gave it?

  Thanks again

Looking for a script or wallet to execute a CLTV

     CLTV is an op code in the Bitcoin scripting language that allows you to lock a UTXO (Unspent Transaction Output) by time. i.e. a coin cannot be spent until a certain time or blockchain height has been past

    Thanks

Took out papers and scanned. Also took pic for the record all laying next to each other.

As you can see, Terra slate paper, Revlar and Ritnrain's Duracopy are in perfect condition...all scanned and are intact

Ritnrain all weather paper is soggy and yellowing a bit on the edges, able to read the QR but turning too brownish..so removed from water

The regular ink I used to mark Terra slate is also intact.

Paper out for less than a minute and all were immersed back in the water right away.

Received with thanks...stellar job as always!  Thanks for the extras as well 

   Lol...I agree...and this online test I think is unique and also a great test for it...thats how strong it is


   You gotta read this article...  https://www.betterbuys.com/estimating-password-cracking-times/