RCasatta

@Test
    public void testException() throws Exception {
        String digest = "c858838f62f908c922f9cd734e49c8fa6ee9a3b8a77093ac0969cba429249412";
        byte[] digestByte = DatatypeConverter.parseHexBinary(digest);
        Timestamp root= new Timestamp(digestByte);

        String cata = "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

RCasatta

extern crate futures;
extern crate tokio;

use futures::{Future, Async, Poll};
use std::thread;
use futures::sync::oneshot::Receiver;
use std::time;
use tokio::executor::current_thread;

pub struct FutureSender {

RCasatta

https://opentimestamps.org/info.html?ots=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

RCasatta

package com.eternitywall;

import javax.xml.bind.DatatypeConverter;
import java.security.MessageDigest;
import java.security.NoSuchAlgorithmException;
import java.util.Random;

public class Main {

RCasatta

const fs = require('fs');

function saveOts(otsFilename, buffer) {
    fs.exists(otsFilename, fileExist => {
        if (fileExist) {
            console.log('The timestamp proof \'' + otsFilename + '\' already exists');
        } else {
            fs.writeFile(otsFilename, buffer, 'binary', err => {
                if (err) {
                    return console.log(err);

RCasatta

#!/usr/bin/env python
''' Run from "electrum/lib" directory.
ThomaxV started a discussion on https://bitcointalk.org/index.php?topic=274182.msg2939599#msg2939599
about changing the HD derivation logic in electrum 2. The below post:
http://bitcoin.stackexchange.com/questions/37013/how-to-import-a-hd-wallet-from-an-extended-private-key
confirms that the format is actually m/c/i (and not m/44'/0'/a'/c/i)
so I have altered https://gist.github.com/romanz/4b32782bfc0ff4984713 accordingly:
tested to work with keys/addresses exported from electrum 2.7.0
note Electrum has a "gap limit" of 20, so loop @ level "c" to get the next 20 addresses
'''

RCasatta

Compiling bitcoin v0.3.10
error: `$r:expr` may be followed by `copy`, which is not allowed for `expr` fragments
    --> /Users/casatta/.cargo/registry/src/github.com-1ecc6299db9ec823/bitcoin-0.3.10/src/blockdata/script.rs:1690:16
     |
1690 |              $(copy $c:expr);*
     |                ^^^^

error: `$r:expr` may be followed by `swap`, which is not allowed for `expr` fragments
    --> /Users/casatta/.cargo/registry/src/github.com-1ecc6299db9ec823/bitcoin-0.3.10/src/blockdata/script.rs:1691:16
     |

RCasatta

$ ./ots -v info examples/hello-world.txt.ots 
File sha256 hash: 03ba204e50d126e4674c005e04d82e84c21366780af1f43bd54a37816b6ab340
Timestamp:
ripemd160 == 1df8859e60bc679503d16dcb870e6ce91a57e9df
prepend 0100000001e482f9d32ecc3ba657b69d898010857b54457a90497982ff56f97c4ec58e6f98010000006b483045022100b253add1d1cf90844338a475a04ff13fc9e7bd242b07762dea07f5608b2de367022000b268ca9c3342b3769cdd062891317cdcef87aac310b6855e9d93898ebbe8ec0121020d8e4d107d2b339b0050efdd4b4a09245aa056048f125396374ea6a2ab0709c6ffffffff026533e605000000001976a9140bf057d40fbba6744862515f5b55a2310de5772f88aca0860100000000001976a914 == 0100000001e482f9d32ecc3ba657b69d898010857b54457a90497982ff56f97c4ec58e6f98010000006b483045022100b253add1d1cf90844338a475a04ff13fc9e7bd242b07762dea07f5608b2de367022000b268ca9c3342b3769cdd062891317cdcef87aac310b6855e9d93898ebbe8ec0121020d8e4d107d2b339b0050efdd4b4a09245aa056048f125396374ea6a2ab0709c6ffffffff026533e605000000001976a9140bf057d40fbba6744862515f5b55a2310de5772f88aca0860100000000001976a9141df8859e60bc679503

RCasatta

SHA256 digest of some data.
Starting digest: 8bd5a5f07b4451c29756df5eb51d194fb5b20c7e89812d877bbad30d871c582f
execute Append(b63d8f213d047298b8ab4595acd8e5d0)
 result 8bd5a5f07b4451c29756df5eb51d194fb5b20c7e89812d877bbad30d871c582fb63d8f213d047298b8ab4595acd8e5d0
execute SHA256()
 result 9f42984ccdb96addb79884e714cc6b6b059c68f2ac3a2e07c5198c22d904de14
execute Prepend(ae59d2c0d2f5efa97df8f3cca7e85845880c102237f1a6a1b0b4c6a5ab77f494)
 result ae59d2c0d2f5efa97df8f3cca7e85845880c102237f1a6a1b0b4c6a5ab77f4949f42984ccdb96addb79884e714cc6b6b059c68f2ac3a2e07c5198c22d904de14
execute SHA256()
 result 0bca1ed1718c71929130a639f0a7b82eeb91a8fa45b16510c9ee15fec4a0bf15

RCasatta

File sha256 hash: 62c8b090faa21ee5f2e75399d4909e1e27a00ade7dca8f219c6fd34f54de3494
Timestamp:
append c237d4ddbf2f14816956503d0d5a766b
sha256
 -> append 4e1e40b3ca59836ba67eefe04bbab6d4
    sha256
    prepend 58b93f93
    append 2035d407feee535c
    verify PendingAttestation('https://eth.ots.eternitywall.com')
    sha256