The document discusses digital identity on blockchain, highlighting key concepts such as self-sovereign identity, verifiable credentials, and decentralized identifiers. It outlines the path to achieving self-sovereign identity through various stages including control, access, and consent, and mentions the importance of blockchain in enhancing trust and security. Additionally, it references tools and organizations involved in developing these technologies, such as Hyperledger Indy and various trust models.

1. Digital Identity on
Blockchain
Jakub Kočí

2. About me
• Back-end
• Front-end
• Distributed Systems
• Blockchain
• Fintech

3. Identity

4. Digital Identity
Org A
username
password
username
password
username
password
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Org B
Org X
Org A
Org B

5. Problems

6. Self-sovereign Identity
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Org A
Org B

7. Path to Self-sovereign Identity
1. Existence
2. Control
3. Access
4. Transparency
5. Persistence
6. Portability
7. Interoperability
8. Consent
9. Minimalization
10. Protection
http://www.lifewithalacrity.com/2016/04/the-path-to-self-soverereign-identity.html

8. Credentials

9. Verifiable Credentials
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Schema
WalletCredentials
Machine-readable format

10. Name: John Doe
Address:
123 Never St
Phoenix, AZ 85001
Birth Date:
01/01/1995
Over 21: true
Zero-knowledge Proof

11. Decentralized Identifiers
• URN
• Public-private key pair
• Encrypted channel
• Public DID
• Pairwise DID
• DID Auth
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13. Credentials Workflow
Issuer
Holder
Verifier
Trust
Blockchain
Proof
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Credential
Schema Revocation RegistryPK

14. • Consensus (RBFT)
• Node
• SDK
• Cryptography

15. indyscan.io

16. • Non-profit organization
• Legal framework and governance
• Public-permissioned blockchain
• Stewards
• Hyperledger Indy

17. • Absa Identity PoC
• Simplify KYC process
• SAFBC cooperation

18. Thank you!
jakub.koci@gmail.com
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@jakubkoci
www.jakubkoci.com