StockBlock
StockBlock
Token: XMC


Marketplace for media artist

ICO dates
Start date: 2017-10-25
End date: 2017-11-25

Registrated in: India

Platform: Ethereum
Type: ERC20

PREMIUM ICO

https://stockblock.io/ Screenshot
StockBlock categories
Art Media Platform
StockBlock whitepaper
StockBlock token sale
KYC passing required No | Whitelist No | Restriction for countries No
Soft cap 25000 ETH
Hard cap 68750 ETH
Tokens for sale 137,500,000
Token distribution in ICO
55%
55%
Price 1 ETH = 2000 XMC
Acceppting ETH
StockBlock news, social
StockBlock search trends in Google
Random whitepaper excerpts

​ ​ ​
1
Overview
“A​ ​picture​ ​is​ ​worth​ ​a​ ​thousand​ ​words”
Very​ ​true,​ ​but​ ​when​ ​that​ ​picture​ ​is​ ​protected​ ​by​ ​image​ ​copyright,​ ​you​ ​might
get​
c​ ease​ ​and​ ​desist​
​for​ ​using​ ​it​ ​without​ ​permission.​ ​Every​ ​day​ ​you’re
inundated​ ​by​ ​images.​ ​They​ ​appear​ ​in​ ​tweets,​ ​texts,​ ​and​ ​articles.​ ​You’ve
probably​ ​laughed,​ ​liked,​ ​and​ ​shared​ ​countless​ ​ones.​ ​But​ ​have​ ​you​ ​ever
wondered​ ​where​ ​the​ ​original​ ​image​ ​came​ ​from?​ ​More​ ​importantly,​ ​is​ ​that
person​ ​even​ ​getting​ ​proper​ ​credit?
Most​ ​people​ ​think​ ​by​ ​adding​ ​a​ ​couple​ ​of​ ​words,​ ​they’ve​ ​created​ ​an​ ​original
image,​ ...

​ ​ ​
2
Problem
Protecting​ ​your​ ​artwork
Copyright​ ​law​ ​provides​ ​a​ ​creator​ ​with​ ​several​ ​critical​ ​and​ ​powerful​ ​rights
over​ ​their​ ​work.​ ​Registering​ ​your​ ​artwork​ ​is​ ​mandatory​ ​to​ ​win​ ​cases​ ​in​ ​court.
Copyrighting​ ​your​ ​artwork​ ​alone​ ​is​ ​not​ ​enough.​ ​Let’s​ ​say​ ​you​ ​register​ ​your
image​ ​and​ ​use​ ​it​ ​on​ ​your​ ​website​ ​or​ ​sell​ ​it​ ​on​ ​stock​ ​photography​ ​website.
Now,​ ​anyone​ ​can​ ​download​ ​the​ ​image​ ​without​ ​your​ ​permission,​ ​add/modify
the​ ​image​ ​as​ ​per​ ​need​ ​and​ ​use​ ​it​ ​either​ ​online​ ​or​ ​offline.
There​ ​is​ ​no​ ​way​ ​to​ ​locate​ ​stolen​ ​copies​ ​of​ ​your​ ​artwork​ ​on​ ​the​ ...

​ ​ ​
3
Solution

Proof​ ​of​ ​ownership
Registering​ ​your​ ​copyright​ ​is​ ​the​ ​best​ ​way​ ​to​ ​prove​ ​ownership.​ ​When​ ​you
click​ ​that​ ​shutter​ ​you​ ​own​ ​your​ ​copyright.​ ​StockBlock​ ​is​ ​not​ ​an​ ​alternative​ ​to
it.​ ​But​ ​it​ ​is​ ​the​ ​second​ ​best​ ​to​ ​help​ ​win​ ​cases​ ​in​ ​court.​ ​With​ ​the​ ​help​ ​of
Blockchain​ ​technology,​ ​content​ ​creators​ ​will​ ​be​ ​able​ ​to​ ​timestamp​ ​their
artwork​ ​copyright​ ​and​ ​attribution.​ ​Whenever​ ​you​ ​upload​ ​your​ ​artwork​ ​on
StockBlock,​ ​the​ ​information​ ​is​ ​recorded​ ​on​ ​blockchain.​ ​A​ ​fingerprint​ ​of​ ​your
image​ ​along​ ​with​ ​your​ ​details​ ​is​ ​timestamped​ ​using​ ​smart​ ​co...

​ ​ ​
4
Same​ ​user​ ​can​ ​have​ ​multiple​ ​similar​ ​images(altered​ ​like​ ​blurred,​ ​grayscale
etc)​ ​as​ ​the​ ​same​ ​user​ ​owns​ ​it.​ ​There​ ​can​ ​not​ ​be​ ​two​ ​similar​ ​images​ ​in
different​ ​user​ ​accounts.
This​ ​also​ ​helps​ ​keeping​ ​fraudsters​ ​off​ ​the​ ​system.​ ​If​ ​someone​ ​uploads​ ​a
stolen​ ​image,​ ​the​ ​account​ ​is​ ​flagged​ ​and​ ​a​ ​ticket​ ​is​ ​opened​ ​for​ ​dispute.​ ​The
fraudster​ ​is​ ​flagged​ ​for​ ​plagiarism.
The​ ​system​ ​search​ ​also​ ​uses​ ​the​ ​perceptual​ ​hashing​ ​system​ ​to​ ​display​ ​the
search​ ​results.

Finding​ ​similar​ ​images​ ​(With​ ​phash​ ​score​ ​more​ ​than​ ​90%)

Finding​ ​visually​ ​unique​ ​i...

​ ​ ​
5
Technology

Perceptual​ ​hashing
Perceptual​ ​hashing​ ​is​ ​the​ ​use​ ​of​ ​an​ ​algorithm​ ​that​ ​produces​ ​a​ ​snippet​ ​or
fingerprint​ ​of​ ​various​ ​forms​ ​of​ ​multimedia.​ ​Perceptual​ ​hash​ ​functions​ ​are
analogous​ ​if​ ​features​ ​are​ ​similar,​ ​whereas​ ​cryptographic​ ​hashing​ ​relies​ ​on
the​ ​avalanche​ ​effect​ ​of​ ​a​ ​small​ ​change​ ​in​ ​input​ ​value​ ​creating​ ​a​ ​drastic
change​ ​in​ ​output​ ​value.
...

​ ​ ​
6
The​ ​perceptual​ ​hash​ ​generates​ ​near​ ​unique​ ​fingerprint​ ​of​ ​images,​ ​even​ ​after
an​ ​image​ ​that​ ​has​ ​been​ ​altered​ ​with​ ​blur,​ ​grayscale​ ​effect.​ ​The​ ​hamming
distance​ ​between​ ​the​ ​two​ ​hashes​ ​defines​ ​the​ ​similarity​ ​of​ ​the​ ​image.
The​ ​distance​ ​then​ ​can​ ​be​ ​converted​ ​to​ ​percentage​ ​to​ ​determine​ ​the
similarity​ ​of​ ​the​ ​images.​ ​Below​ ​is​ ​an​ ​example​ ​of​ ​the​ ​hash​ ​generated​ ​and​ ​its
hamming​ ​distance.
The​ ​above​ ​generated​ ​hex​ ​and​ ​hash​ ​can​ ​be​ ​compared​ ​with​ ​the​ ​altered
images​ ​below​ ​to​ ​calculate​ ​the​ ​hamming​ ​distance.
...

​ ​ ​
7
Even​ ​after​ ​blurring​ ​and​ ​adding​ ​layer​ ​of​ ​black​ ​patch​ ​the​ ​algorithm​ ​is​ ​able​ ​to
identify​ ​the​ ​original​ ​image.​ ​This​ ​algorithm​ ​also​ ​works​ ​when​ ​the​ ​image​ ​is
altered​ ​using​ ​high​ ​contrast,​ ​grayscale​ ​or​ ​even​ ​resizing​ ​the​ ​image.
...

​ ​ ​
8
Below​ ​is​ ​an​ ​example​ ​of​ ​image​ ​rotation​ ​or​ ​flipped​ ​images.​ ​Manipulating​ ​the
uploaded​ ​image​ ​with​ ​different​ ​set​ ​of​ ​views​ ​to​ ​compare​ ​it​ ​with​ ​the​ ​original
images​ ​is​ ​possible.​ ​Further​ ​these​ ​hashes​ ​can​ ​be​ ​compared​ ​depending​ ​on
the​ ​hamming​ ​distance.
Hamming​ ​distance​ ​between​ ​two​ ​strings​ ​of​ ​equal​ ​length​ ​is​ ​the​ ​number​ ​of
positions​ ​at​ ​which​ ​the​ ​corresponding​ ​symbols​ ​are​ ​different.​ ​In​ ​other​ ​words,​ ​it
measures​ ​the​ ​minimum​ ​number​ ​of​ ​substitutions​ ​required​ ​to​ ​change​ ​one
string​ ​into​ ​the​ ​other,​ ​or​ ​the​ ​minimum​ ​number​ ​of​ ​errors​ ​that​ ​could​ ​have
transformed​ ...

StockBlock Roadmap

1
Jun 20, 2016 The project Idea
Group of entrepreneur friends discussed this project and copyright issues over local meetup.
2
Aug 10, 2016 Planning stage
Thought process on how to develop the platform and manage copyrights. We also had initial discussion on benefits of using blockchain
3
Nov 10, 2016 Prototyping & workflow
Started prototyping with 2 full stack developers. Workflows, database and other development standards were setup on a private cloud.
4
Mar 16, 2017 Development in progress
Marketplace platform development begins. Initiated cloud storage setup to handle large amount of images.
5
Jul 25, 2017
Develop contracts and testing Working on contracts for copyright information that will be stored on blockchain. The contract stores copyright information along with image hash value of the images. Further contracts will also be used to create unique or extended editions of the artwork to be sold in the marketplace.
6
Sep 20, 2017
Project website goes live
7
Sep 28, 2017
Whitepaper
8
Oct 25, 2017
Token-Sale
9
Dec 31, 2017 Alpha release and testing
Test marketplace platform with copyright/ownership contracts and bug fixes.
10
Jan 04, 2018
Connect with media artist Setup offices globally to market and get photographers on-board.
11
Jul 01, 2018 Beta release
Beta test platform with photographers.
12
Jun 01, 2018 Populate content for next 6 months
Populate content for next 6 months with pre-registered selected few photographers
13
Jan 01, 2019 Platform open for everyone
Platform open for everyone but invite only. To further secure the system from fraudsters the system will be invite only. This will help grow the community trust in building a blockchain of trusted media artist.
Mangesh Yadav
Mangesh Yadav Co-Founder, Project lead

Amit SIngh
Amit SIngh Co-Founder, Project lead

Anirudh Prabhune
Anirudh Prabhune Project Lead and full stack developer

Savita Soni
Savita Soni BDO and marketing specialist

Sanket Nagvekar
Sanket Nagvekar Developer

Amit Singh
Amit Singh
Legal Advisor, Stradling Law
Country Head at IFP, Kuwait
Legal Advisor, Stradling Law