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matthieu / gist:d78bd39a6709c5be3dcd
Created March 7, 2015 22:43
Sending op_return transactions with BlockCypher
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="utf-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1">
<title>Block Cypher</title>
<!-- Bootstrap -->
<link href="css/bootstrap.css" rel="stylesheet">
@matthieu
matthieu / gist:b07c5ba27bc99188a15f
Last active June 15, 2023 06:45
Create and send a Bitcoin transaction using the BlockCypher Transaction API
# In this example we're sending some test bitcoins from an address we control to a brand new test
# address. We'll be sending the coins using the following address, public and private keys (please
# don't abuse).
# address : mtWg6ccLiZWw2Et7E5UqmHsYgrAi5wqiov
# public : 03bb318b00de944086fad67ab78a832eb1bf26916053ecd3b14a3f48f9fbe0821f
# private : 1af97b1f428ac89b7d35323ea7a68aba8cad178a04eddbbf591f65671bae48a2
# 1. generate a one-shot dummy address we're going to send money to
$ curl -X POST http://api.blockcypher.com/v1/btc/test3/addrs
{
@matthieu
matthieu / eth-split
Last active August 11, 2021 13:33
Calling the Ethereum splitting contract using BlockCypher
# Contract at:
# https://api.blockcypher.com/v1/eth/main/contracts/aa1a6e3e6ef20068f7f8d8c835d2d22fd5116444?token=$TOKEN
# http://etherscan.io/address/0xaa1a6e3e6ef20068f7f8d8c835d2d22fd5116444#code
# See also https://blog.ethereum.org/2016/07/26/onward_from_the_hard_fork/
$ cat split.json
{
"private": "...",
"gas_amount": 200000,
"params": ["3f071e84604d712ee034d776ed8f6405e1444c48", "34de916d2afc28564b118a4f2723d0274b223f32"],
@matthieu
matthieu / bc-contract-doc
Created July 12, 2016 18:55
Contract creation with BlockCypher
# The contract API includes the following endpoints (API token always required):
#
# POST /v1/eth/main/contracts
# Creates a new contract. Expects the solidity definition, the private key paying for the publication, the name of the
# contract to be published, the gas amount to use and eventual constructor parameters. The solidity code is compiled
# and the contract creation transaction built and broadcasted. Both the code and the ABI are saved for further
# retrieval. If invoked without contracts to publish, simply compiles and returns the result of compilation.
# Otherwise, along with the compilation results, will return the contract address and creation transaction hash and the
# contract methods will be exposed as endpoints (see below).
#
@matthieu
matthieu / Indy.java
Created February 21, 2011 23:47
package dyn;
import org.objectweb.asm.*;
import org.objectweb.asm.util.TraceClassVisitor;
import sun.dyn.anon.AnonymousClassLoader;
import java.io.PrintWriter;
public class Indy implements Opcodes {
@matthieu
matthieu / gist:455329
Created June 28, 2010 01:17
package spike
import util.Random
class Neuron(nm: String, ns: List[Neuron], rnd: Random) {
val (a, b, rate) = (1.7159, 2.0/3.0, 0.1)
val dendrites = connect(ns)
val name = nm
// need to remember output and gather error for training
@matthieu
matthieu / gist:4c98575af988f3e6b194
Created July 31, 2015 21:26
Verifying I am +matthieu on my passcard. https://onename.com/matthieu
@matthieu
matthieu / gist:f18b54cb91c31d39ba54
Last active August 29, 2015 14:20
Validate the tosign data returned by BlockCypher
# create the transaction
$ curl -d '{"inputs": [{"addresses": ["mtWg6ccLiZWw2Et7E5UqmHsYgrAi5wqiov"]}],
"outputs":[{"addresses": ["mzUqjgiGc3Mqh5zMiP5vXDNd7Hwx3K1xCU"], "value": 25000}]}' \
https://api.blockcypher.com/v1/btc/test3/txs/new?includeToSignTx=true
{
"tx": {
"block_height": -1,
"hash": "568acff13300b471d384e16a1a6d449be704e97b819f051dc4f1fb246726e471",
"addresses": [
"mzUqjgiGc3Mqh5zMiP5vXDNd7Hwx3K1xCU",
@matthieu
matthieu / keybase.md
Created April 8, 2015 20:24
keybase.md

Keybase proof

I hereby claim:

  • I am matthieu on github.
  • I am mriou (https://keybase.io/mriou) on keybase.
  • I have a public key whose fingerprint is 45B8 A602 A54E FB5E 0DEC 4970 E272 A45F 78F3 61CB

To claim this, I am signing this object:

@matthieu
matthieu / send_a_candy.sh
Last active August 29, 2015 14:16
Decrypts and send the send_a_candy JSON to BlockCypher to create a microtransaction
#!/bin/bash
openssl enc -d -aes-256-cbc -base64 -in send_a_candy.json.aes256 2>&1 | \
curl -H "Content-Type: application/json" -d @- https://api.blockcypher.com/v1/btc/main/txs/micro?to_address=$1