Blockchain Programming in C#

    Dear developers, and Bitcoin addicts,

    I wrote Blockchain Programming in C#, so I hope you too, hobbyist, startup and big corporation will move the block forwards.
    I get too much questions and requests for helping everyone to build on the Blockchain. But sadly, I only have 24H per day, no matter how much coffee I drink.

    Writing is the most scalable way to share my knowledge. And coherently with such a goal my work is under CC (ASA 3U), so you are free to share. (and encouraged to do so)

    download new edition old edition

    Code examples

    The book contains multiple example about how to use NBitcoin. Moreover, this website is itself open source, so you can take a look and play with it by yourself.

    source

    Hall of the Makers

    As you will read the book, you will have some challenges.

    For the first challenge, you need to send me at least 0.004 BTC on 1KF8kUVHK42XzgcmJF4Lxz4wcL5WDL97PB with some kind words in the OP_RETURN of your transaction.

    This money goes into my "Coffee and Sushi Wallet" that will keep me fed and compliant while writing the rest of the book.

    You can download the first part of the book for free to know how.

    Here are the true makers that cleared the task, ordered by success, generosity then time (confirmed only):

    Current block height: 473134 (0 h 19 min 54 sec ago)

    Position Address Amount Kind Words Transaction Id
    1 19MyKR8sQSpoVxKpaBos5zrqK7tcSAsJyG 0.13370000 Nice uses of colored coins, well explained! :) Link
    2 18bximb4njHjo1TpvpCDL75q26KnbKoXoz 0.02000000 Best Regards, Thank you kindly! :) Link
    3 1KtYTyyh7V6MfFWntwzKMKmVCpugzd2Bxu 0.01068365 Thank you Nicolas!! - JungleHeart Link
    4 1NP8zmaVo7mQdeeThgWQcnBZ7U2ZBS12by 0.01000000 Thanks! :) Link
    5 1Hit1tMzZd7zgCA5KrQQPzbvYBKs3ej4Sh 0.01000000 It works! Thanks nicholas/adam Link
    6 1F5b1CiKJC8JGqSButjeyvo92daw1TbG2d 0.00950000 Excellent Link
    7 16q5XgW2mRaSBrsYncAXFMhAGNFDpKfHaK 0.00650000 NBitcoin is great!! from YOKOHAMA. Link
    8 14SHWbReg8ioupEaFBPr8LywavzFYWrbbv 0.00600000 Salut et bravo pour NBitcoin! Link
    9 14dBuGUPWhjnYkKQvoW2vCNQuygNmt5U1n 0.00500000 From hypergori,Thanks for a great book and this is 80 bytes message on OP_RETURN Link
    10 1P4iaL7zDmyaTz8Dg5ocF5JV35eVL5kRZx 0.00450000 WooHoo! Awesome Tutorial! >:D Link
    11 1LUtd66PcpPx64GERqufPygYEWBQR2PUN6 0.00400000 Thanks ! :) Link
    12 13YzGYW93qs3Y6YJp2Ac8ZX3jEAg3jgWDs 0.00400000 Bill Strait says hello and thank you. Link
    13 14dSoNuCUEMpuSBhsMAzdvB6D4mVuaUrL7 0.00400000 Amazing! Link
    14 1DdY4rrrcQtLv6R4gqPg8G47Q2sH57ZkeG 0.00400000 Thanks! Marek Link
    15 1APbYrSf3KHwwJMx5zLXeosyRoy15dLktc 0.00400000 Thanks ! ;) Link
    16 12thvqD6wMfyVuVxR8myrtHbSZp4jhh5uU 0.00400000 You're a star!!! :) Link
    17 1BJatyvD6vQxX8hmKYHH3X6HPAgUECyHRo 0.00400000 Bill Strait is updating screenshots. Link
    18 1B9frxWTcyiTx5W6RUZCfB15fJrX6ZiYs2 0.00400000 Thanks ! :) Link
    19 1NpYetwzxsuxTqwCsjABDvA8YYU9pU5F5z 0.00400000 YarkoL loves NBitcoin Link
    20 154so9NEUYcZEZA1uoRF1fXA4Uq84MY1FH 0.00400000 Great book. Want a job? join.readify.net Link
    21 19fVWeRJhgsP3EzZP47k68N7vEbVSWnKuT 0.00400000 reddit.com/user/nopara73 Link
    22 1A8zb49WCSKbCUpcvsm8ShnFQ61wrjF2H8 0.00400000 Thanks! Go barefoot! Link
    23 1G3zxxS77pM7ovRwjZtpULXoqUnVy1tLfv 0.00400000 Thanks ! :) Link
    24 14cZdFpNGWbQTp9RNFXyampuhj61sBzr4s 0.00400000 Heber says Hello!! Link
    25 1KKtuBn4RHEWCtaQzuzXvNnAth5Ve7XUgP 0.00400000 Thanks! from jeffsurcess Link
    26 1LXrNAknqr2VUy5chKHTn52q3nZjJ7uDTT 0.00400000 From Botcoin Link
    27 18yFEA3ush88C9DDv4hAW43iuJkdSwTzeA 0.00400000 Thanks from Tomoaki at Tokyo! Link
    28 13BqtXHMioozBGcGq2ouTfqp8WtinyArLG 0.00400000 Yo What's UP Nic! :) Link
    29 17rp66spgaqyt9yMMje8JJde7jkkWdByYo 0.00400000 Thanks! Link
    30 1DzYnw5i5u7o8UTjCinfnNvL36E6eXQZuo 0.00400000 Thanks ! :) from Wichit Link
    31 1PvjNSa9ZbPFU7iTiP3wcVRuyMrDvz7SjX 0.00400000 Thanks ! :) Link
    32 12itMJwyRNnCfqioBuKjd4yZRYbzHj9ZnN 0.00400000 Nicolas, thanks a lot! :-) Link
    33 19f9jQ2YoebMrAWU75GThsSdf96g2owDFR 0.00400000 Thanks ! :) Link
    34 1HF9jCriPppd4rAk2R72uYCwcM1HtnMSV4 0.00400000 Greate book! Link
    35 14DMvcPMmHki3MFj47C9iA8xQNCo9cfijR 0.00400000 * RoB says 'thanks!' Blöckchaïn rules! * Link
    36 1Mw1YKAt5bTBGunFT6Cj8pr2LT2XZyF3H 0.00400000 Great work Nicolas ! :) ~AB Link
    37 1FZnoy79sKvBG1BgVAAmPFqGdU6igSD8ck 0.00400000 Now reading the book :) Link
    38 1Jxu9fqA1znpnLQhZv9hqhraJk7S3pEqUL 0.00400000 Thanks ! :) Link
    39 1PWKTpMCg23BQXL8WJvDqDzBBvqrtBsdPd 0.00400000 Thanks from Ken TCentral! Link
    40 1FQiX2KRYJH6qGTi48YKUM7LCQh7WNKuyt 0.66431513 (lazy) Link
    41 17Q2JmL3PpxfvqhEKdCzQxnng2m9S7xe3d 0.12345678 (lazy) Link
    42 3PuSLTXsksJSUH3hn12ScP2BaM5D4QaCMX 0.10000000 (lazy) Link
    43 1CKhokaLZrLELZCsDEN55yvfELd8iDxsF5 0.03000000 (lazy) Link
    44 1mzeXBi8TjL5V1usdnP5dZTfoZ76x3Wy1 0.02500000 (lazy) Link
    45 3QJimE4EmtcG5iuuvXJGUEd8qnBpLBsR9x 0.02000000 (lazy) Link
    46 1HX1VgHLe7fzy4NM8LGT41caAkW5rPdmbE 0.01000000 (lazy) Link
    47 1BfaVUNA1uHrbNWH5LcfqKLR9hwATMptzF 0.01000000 (lazy) Link
    48 3GpzZvaSZBUZqxY66zY2BPTkAydspZbhcV 0.01000000 (lazy) Link
    49 112LMTtaGrPY9Z1ww8ovJRkHa3GMee642B 0.00602600 (lazy) Link
    50 14CD1pFpBtFt5QVgbUkBcpTCJ5HUGhHEmG 0.00500000 (lazy) Link
    51 1KYgg5hXgXstY2oE1uEbNwmjhqa8GjQsfV 0.00500000 (lazy) Link
    52 1JycDPqbtBYpcbJUrX7c14whqRxiLDM2w9 0.00500000 (lazy) Link
    53 13A9odWXfs8VEkcyFa9amGmsq7nw827FJQ 0.00500000 (lazy) Link
    54 19754oopLFiW13dzvvTM92nX1ZEY78JhQG 0.00492000 (lazy) Link
    55 19ogGmweRyP2nNjaysv1dTWEKsSBvW146k 0.00488624 (lazy) Link
    56 12tgDWtviV6gwpxP4AGT5EykKvq8pHBiKS 0.00400000 (lazy) Link
    57 1AdaX4FUbbANddLbNrE6Qvxfr6emwGiv1Q 0.00400000 (lazy) Link
    58 1DQcL8dYP5eYdbYjJLZdMWxR3558HbFnSD 0.00400000 (lazy) Link
    59 13BqtXHMioozBGcGq2ouTfqp8WtinyArLG 0.00400000 (lazy) Link
    60 1C9HtFk55bTbDgFPQmkY8uAjpKpFj5YeUV 0.00400000 (lazy) Link
    61 14nxsZPh1EnE9M2HmsGcL6tfLMQbcfFYDs 0.00400000 (lazy) Link
    62 13XWJQxyEjT1otZAC3oHVJAV8fyeQgrtUT 0.00400000 (lazy) Link
    63 1EL1co7dJaAnqQZauUBi1aVbC7C42P3kNx 0.00400000 (lazy) Link
    64 18DuxfZGbeVVApt42JMx3BSwYemAKieJsu 0.00400000 (lazy) Link

    PS: I've seen some people sending 0.004 BTC but forgetting the OP_RETURN. If you want me to return the BTC, ask me with your signature to refund it on BTC Talk.