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21  Alternate cryptocurrencies / Speculation (Altcoins) / Re: Metronome (MTN) Bitcoin Killer? on: November 23, 2017, 05:55:48 PM
We certainly don't intend it to be a "bitcoin killer"...   Metronome requires a blockchain to secure it.

P.S. Posted an announcement thread at https://bitcointalk.org/index.php?topic=2450739.0
22  Alternate cryptocurrencies / Announcements (Altcoins) / [ANN] Metronome, an autonomous cryptocurrency with predictable supply on: November 23, 2017, 05:47:35 PM
We are pleased to announce Metronome, a new cryptocurrency with an autonomous global supply and the ability to import/export across blockchains (a blockchain-on-blockchain approach).

Metronome attempts to create a stable, predictable money supply ad infinitum, using daily descending price auctions to distribute the token supply at market prices.  Through the Auction contract, an initial 8,000,000 MET are sold in a 7-day initial descending price auction, followed by 2,880 MET per day minted and sold in the daily auctions (through year ~30, where mintage hits a 2%-per-year inflation floor).  We retain an additional 2,000,000 MET for a one-time compensation, 75% of which is locked up for up to 3 years.

The ETH (or ETC or QTUM or BTC) received in the daily auctions is stored in a Proceeds contract on the blockchain.  This Proceeds contract acts like a savings account, holding the auction proceeds (token sale proceeds), and then feeds 0.25% of the total Proceeds balance to another contract, the Changer contract.  tl;dr the raise goes to the community long term, zero back to us.

The goal is a fair distribution, to the public, at market prices.  There is no pre-sale or special access discount.  All of the "raise" goes back to the community.  Metronome is quite different from any traditional ICO.

The Changer contract is an on-chain ETH/MET exchange facility.  The Changer contract holds ETH and MET balances.  It uses a simplified Bancor-style algorithm to behave like both an exchange and a market maker for ETH/MET pair.  Users send ETH, receive MET.  Users send MET, receive ETH.

In the context of the Proceeds contract, the changer autonomously receives 0.25% of the Proceeds balance every day, overweighting the ETH side of the ETH/MET trading pair.  This creates an incentive for others to deposit MET and receive ETH, to arbitrage the Changer ETH/MET pair back to market price.  The Proceeds contract causes the Changer to, indirectly, "buy" MET every day, essentially a mechanism of community market liquidity support over many decades.  The Proceeds contract is like a slowly deflating balloon.

Users transfer MET tokens between each other via the ERC20 contract, using an ERC20-compatible wallet.  This contract has been enhanced with extensions for ERC223, MassPay (multiple transfers in one transaction, lowering mass-payout fees), and a unique on-blockchain subscription extension.

Website: https://www.metronome.io
Owner's Manual: https://github.com/autonomoussoftware/documentation/blob/master/owners_manual/owners_manual.md

How to purchase:  Send ETH to ETH auction contract, receive MET to an ERC20-compatible wallet.

Other resources:
FAQ: https://github.com/autonomoussoftware/documentation/blob/master/FAQ.md
Article: What is a descending price auction?  https://medium.com/@MetronomeToken/what-is-a-descending-price-auction-8c0770bb6a71

Update:  The initial public auction is now live!

Update:  Source code is available at https://github.com/autonomoussoftware
23  Alternate cryptocurrencies / Announcements (Altcoins) / [moved] on: November 23, 2017, 05:26:55 PM
Moved to https://bitcointalk.org/index.php?topic=2450739.0
24  Bitcoin / Wallet software / Re: [ANNOUNCE] picocoin and libccoin -- C-based bitcoin library and client on: May 06, 2015, 05:37:37 AM
The libccoin library no longer depends on GLib library.  That dependency has been completely removed.
25  Bitcoin / Wallet software / Re: [ANNOUNCE] picocoin and libccoin -- C-based bitcoin library and client on: May 03, 2015, 04:49:46 PM
I had some trouble locating all the packages. I was missing libjansson and libevent_core.
Is my repository out of date?

jansson and libevent are both still needed.

This is what I have installed on Ubuntu:
Code:
ii  libevent-2.0-5:amd64                                        2.0.21-stable-1ubuntu1.14.04.1                      amd64        Asynchronous event notification library
ii  libevent-core-2.0-5:amd64                                   2.0.21-stable-1ubuntu1.14.04.1                      amd64        Asynchronous event notification library (core)
ii  libevent-dev                                                2.0.21-stable-1ubuntu1.14.04.1                      amd64        Asynchronous event notification library (development files)
ii  libevent-extra-2.0-5:amd64                                  2.0.21-stable-1ubuntu1.14.04.1                      amd64        Asynchronous event notification library (extra)
ii  libevent-openssl-2.0-5:amd64                                2.0.21-stable-1ubuntu1.14.04.1                      amd64        Asynchronous event notification library (openssl)
ii  libevent-pthreads-2.0-5:amd64                               2.0.21-stable-1ubuntu1.14.04.1                      amd64        Asynchronous event notification library (pthreads)
ii  libjansson-dev:amd64                                        2.5-2                                               amd64        C library for encoding, decoding and manipulating JSON data (dev)
ii  libjansson4:amd64                                           2.5-2                                               amd64        C library for encoding, decoding and manipulating JSON data

Not sure what's the process for OSX - macports?

26  Bitcoin / Wallet software / Re: [ANNOUNCE] picocoin and libccoin -- C-based bitcoin library and client on: May 02, 2015, 07:46:02 PM
Some minor compile fixes pushed out to git.  Further OSX compile fixes coming soon.
27  Bitcoin / Bitcoin Discussion / Re: [ANN] Bitcoin blockchain data torrent on: April 29, 2015, 04:37:46 PM
Just added a note to the OP.

The Bitcoin Core client is faster and more secure and is the preferred option.

The torrent will continue to be updated periodically for academic research and development purposes, as some secondary usefulness does remain.

28  Bitcoin / Project Development / Re: Bitcoins in space! on: March 16, 2015, 09:52:51 PM
Are there any basic specs for the satellites up anywhere ... just would like to know some basics, dimensions, weight?

More than just basic...

Check out DunveganSpace.com for one-page info sheet + 93-page design specification.

29  Economy / Goods / Re: [WTS] Selling ~1.5 acres vacant, buildable land in North Carolina, USA on: January 09, 2015, 03:31:16 PM
All lots have been sold.
30  Bitcoin / Development & Technical Discussion / Re: [ANN] txtool: Advanced transaction building on: November 17, 2014, 03:10:48 PM
Bitcoin Core now has "bitcoin-tx" which may be used in this manner.  Command line summary:

Code:
Bitcoin Core bitcoin-tx utility version v0.9.99.0-83f5daf

Usage:
  bitcoin-tx [options] <hex-tx> [commands]  Update hex-encoded bitcoin transaction
  bitcoin-tx [options] -create [commands]   Create hex-encoded bitcoin transaction

Options:
  -?                      This help message
  -create                 Create new, empty TX.
  -json                   Select JSON output
  -regtest                Enter regression test mode, which uses a special chain in which blocks can be solved instantly.
  -testnet                Use the test network

Commands:
  delin=N                Delete input N from TX
  delout=N               Delete output N from TX
  in=TXID:VOUT           Add input to TX
  locktime=N             Set TX lock time to N
  nversion=N             Set TX version to N
  outaddr=VALUE:ADDRESS  Add address-based output to TX
  outscript=VALUE:SCRIPT Add raw script output to TX
  sign=SIGHASH-FLAGS     Add zero or more signatures to transaction
      This command requires JSON registers:
      prevtxs=JSON object
      privatekeys=JSON object
      See signrawtransaction docs for format of sighash flags, JSON objects.

Register Commands:
  load=NAME:FILENAME     Load JSON file FILENAME into register NAME
  set=NAME:JSON-STRING   Set register NAME to given JSON-STRING

31  Bitcoin / Development & Technical Discussion / Re: A bitcoin blockchain parser in a few (thousand) lines of C++ on: November 16, 2014, 11:07:07 PM
If you don't mind C (versus C++), picocoin's "blkstats" utility parses the blockchain in under 3 minutes.

https://github.com/jgarzik/picocoin/blob/master/src/blkstats.c
https://bitcointalk.org/index.php?topic=128055.0
https://github.com/jgarzik/picocoin/


Can this be used to compute the bitcoin rich list (list of all addresses with balance greater than x)?

Yes.

32  Bitcoin / Bitcoin Discussion / Re: [ANN] Bitcoin blockchain data torrent on: November 11, 2014, 03:52:09 PM
Hi, is anyone got a FRESH & CLEAN bootstrap.dat file around ?

Read the OP and download the torrent.
33  Bitcoin / Project Development / Re: Bitcoins in space! on: November 11, 2014, 03:38:46 PM
KnCminer blog post: https://www.knccloud.com/blog/archive#he-s-going-to-beam-bitcoin-from-space
34  Bitcoin / Project Development / Re: Bitcoins in space! on: November 11, 2014, 03:38:27 PM
Imagine that they are already a couple of BitSats up there, how the average Joe uses them?

Joe has modern a android device (i.e. nexus 5) and a average laptop.

A satellite receiver.

The project specification indicates that the receiver should be made with Common, Off The Shelf (COTS) parts, and may be purchased or built by a skilled hobbyist.
35  Bitcoin / Project Development / Re: Bitcoins in space! on: October 23, 2014, 12:22:49 AM
Ireland's RTE Long Wave radio station on 252kHz is to close down this January.  That's 18kHz of bandwidth that could cover all of the British Isles and reach all it's 68Million people from a single transmitter.  Plus I'd imagine that Northern France and maybe the low countries could also receive the transmission.  The blockchain plus a Digital Radio Mondiale coded audio station could be broadcast with the 18kHz of bandwidth using the Digital Radio Mondiale codec.  Or more data like alternative blockchains could potentially be transmitted instead.  LW transmissions have good penetration into large buildings.  So an external antenna on the outside of the building would not be needed.

Yes.  Ideally blockchain data, plus other useful data, can be transmitted if bandwidth is available.  For example, the next probable goal for transmission would be live bitcoin transaction data.  This enables mining (assuming you have an uplink somewhere), by delivering a "full feed" of bitcoin protocol data.

After blocks + TXs, there are plenty of other useful things one can imagine.

36  Bitcoin / Project Development / Re: Bitcoins in space! on: October 20, 2014, 12:40:45 AM
The three links in the OP are not working for me?

Fixed.  Thanks for pointing that out.

Some things got moved to BitSat.org.

37  Bitcoin / Project Development / Re: Bitcoins in space! on: October 18, 2014, 01:39:05 AM
FAQs:  How long does a cubesat stay up there?  How long is a single cubesat reachable during an orbit?

With COTS parts, operational life is predicted at 2-3 years, possibly years longer.


38  Bitcoin / Development & Technical Discussion / Re: Increasing the block size is a good idea; 50%/year is probably too aggressive on: October 17, 2014, 11:51:46 PM
It would seem that there could be a simple mathematical progressive increase/decrease, which is based on the factual block chain needs and realities of the time that can work forever into the future.

This can be easily gamed by stuffing transactions into the blockchain, shutting out smaller players prematurely.

39  Bitcoin / Project Development / Re: Bitcoins in space! on: October 10, 2014, 12:43:04 AM
How many satellites will there be? From the ad, it seems there will be 18 to 24 cubesats? Each one connected to a ground station or each other?

How many satellites depends on funding:

  • 4 - a demo, with coverage gaps, high latencies
  • 16 - adequate, with some periods/areas of high latency
  • 24 - ideal target
  • 32 - super duper Smiley

The satellites can communicate with each other (P2P!).  There will be multiple ground stations in multiple countries around the world.

sweet ... got a view that shows southern hemisphere ground stations (e.g. australasian)?

That's all I can release for the moment.  Every landmass except Antarctica should have full coverage.
40  Bitcoin / Project Development / Re: Bitcoins in space! on: October 09, 2014, 02:49:46 PM

With space, you get much higher latencies than on the ground.

To get full coverage over populated areas of Earth, one requires multiple orbital planes, resulting in something like this:


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