authenticity-proof

Components

• Ethereum Smart Contracts
  • CollectionDomainRegistry (1 instance)
    • here we store all ENS-domains of CollectionRegistry instances in a comma separated list
  • CollectionRegistry (∞ instances)
    • contains an array of items that belong to this collection
    • new (unique) items can be added until maxLimit is reached
• Management UI
  • list existing collections by ENS-domain
    • ENS-lookup
  • deploy new CollectionRegistry instances
  • register ENS-subdomain for the new instance
  • add items to existing collections
• Mobile APP
  • NFC communication
  • ENS-lookup for collections
  • verification of items
    • check if items exist in collection
    • generate random msg
    • verify signed random msg
• Arduino (prototype for NFC+SecureElement)
  • NFC communication
  • sign message

Disclaimer

• due to the limitations of the arduino hardware it wasn't possible to generate an ethereum keypair and sign messages on the hardware.
• the final product would be a minuscule device that combines NFC with a secure element and is able to generate keypairs and sign messages

Flows

• see flow-documentation

Contracts (deployed on ropsten testnet)

CollectionDomainRegistry

A registry that holds all ENS-domains of CollectionRegistry contracts that were verified and registered through the service provided by thank me later!.

• Address
  • 0x82e37811c79a7730Bd0A145e78187B17142C6ae3
• ENS-domain
  • thankmelater.test (only valid for 28 days)
• Owner
  • 0xba2B7F4ad1B692da08BC4389faD27Db586EE03cF

CollectionRegistry

This is a contract that can be deployed by a creators or manufacturers for general collections or special limited collections.

The contract is open-source and can be used be everyone.

thank me later! verifies the identity of creators or manufacturers and registers a subdomain of thankmelater.test for each of their collections.

• Address
  • dynamic for each collection
  • can be registered through thank me later! and obtain a unique subdomain
• Example (crew-collection)
  • address 0x0BF28f9876feE68D05B56A0Bc33D3c3dfAF95820
  • domain crew.thankmelater.test
  • maintainers
    • 0xFb43318088588a4cb9Bd172b54C0B1c0F328570B

deprecated (not needed in this project)

docker

1. switch to folder docker
2. run docker build -f Dockerfile.ropsten -t geth_ropsten_ens .
3. run docker run -d geth_ropsten_ens

geth

• https://github.com/ethereum/go-ethereum/wiki/Managing-your-accounts
• https://ethereum.stackexchange.com/questions/28703/full-list-of-geth-terminal-commands