# Blockchain and its Applications

- Institution: IIT Kharagpur
- Department: Computer Science and Engineering
- Teacher: Prof. Sandip Chakraborty Prof. Shamik Sural
- Level: Undergraduate
- Language: English
- Subjects: Computer science, Engineering
- Source: [NPTEL](https://nptel.ac.in/courses/106105235)
- Licence: [CC BY-NC-SA](https://nptel.ac.in/faq) (Non-commercial use only.)
- Syllabus: [at the source](https://nptel.ac.in/courses/106105235)
- Who can watch: Tweens profiles and older (sources give no ratings; placed by Invisible Network from the source's own words)

## Lectures

1. [Lecture 01: The Model of Decentralization](https://invisiblenetwork.ai/learn/nptel/106105235/bf614f1e2f71) (Video)
2. [Lecture 02: What is Blockchain](https://invisiblenetwork.ai/learn/nptel/106105235/68a8c1c3baf2) (Video)
3. [Lecture 03: Basic Cryptographic Primitives - I](https://invisiblenetwork.ai/learn/nptel/106105235/13b7863c24c6) (Video)
4. [Lecture 04: Basic Cryptographic Primitives - II](https://invisiblenetwork.ai/learn/nptel/106105235/913d24058de7) (Video)
5. [Lecture 05: Basic Cryptographic Primitives - III](https://invisiblenetwork.ai/learn/nptel/106105235/0483ffc75675) (Video)
6. [Lectuere 06: Basic Cryptographic Primitives - IV](https://invisiblenetwork.ai/learn/nptel/106105235/eab89a3458ad) (Video)
7. [Lecture 07: Basic Cryptographic Primitives - V](https://invisiblenetwork.ai/learn/nptel/106105235/2c9d3265c353) (Video)
8. [Lecture 08: Distributed Systems for Decentralization – The Beginning​](https://invisiblenetwork.ai/learn/nptel/106105235/cc46b341f39e) (Video)
9. [Lecture 09: The Evolution of Cryptocurrencies](https://invisiblenetwork.ai/learn/nptel/106105235/348ddd4db3c8) (Video)
10. [Lecture 10: Open Consensus and Bitcoin​](https://invisiblenetwork.ai/learn/nptel/106105235/dbc69f76b929) (Video)
11. [Lecture 11: Bitcoin Mining and Beyond](https://invisiblenetwork.ai/learn/nptel/106105235/172013f24f2a) (Video)
12. [Lecture 12: Smart Contracts and the Permissioned Models of Blockchain​"](https://invisiblenetwork.ai/learn/nptel/106105235/348dcaf3db8d) (Video)
13. [Lecture 13: Blockchain Elements - I](https://invisiblenetwork.ai/learn/nptel/106105235/7dd919b53b55) (Video)
14. [Lecture 14: Blockchain Elements - II​](https://invisiblenetwork.ai/learn/nptel/106105235/0e1c428294f8) (Video)
15. [Lecture 15: Blockchain Elements - III​](https://invisiblenetwork.ai/learn/nptel/106105235/448c170111c1) (Video)
16. [Lecture 16: Blockchain Elements - IV​](https://invisiblenetwork.ai/learn/nptel/106105235/569a2f930d45) (Video)
17. [Lecture 17: Blockchain Elements - V​](https://invisiblenetwork.ai/learn/nptel/106105235/67431010d970) (Video)
18. [Lecture 18: Permissionless Model and Open Consensus](https://invisiblenetwork.ai/learn/nptel/106105235/1d2816ba058d) (Video)
19. [Lecture 19: Nakamoto Consensus (Proof of Work)​](https://invisiblenetwork.ai/learn/nptel/106105235/fc226b9b9df0) (Video)
20. [Lecture 20: Limitations of PoW: Forking and Security​](https://invisiblenetwork.ai/learn/nptel/106105235/a6a2cdccdbeb) (Video)
21. [Lecture 21: Beyond PoW​](https://invisiblenetwork.ai/learn/nptel/106105235/a38b7dcdeae9) (Video)
22. [Lecture 22: Ethereum 1​](https://invisiblenetwork.ai/learn/nptel/106105235/9f54db948d8d) (Video)
23. [Lecture 23: Ethereum 2](https://invisiblenetwork.ai/learn/nptel/106105235/1ff6f4ecb97d) (Video)
24. [Lecture 24: Ethereum 3​](https://invisiblenetwork.ai/learn/nptel/106105235/65427c8dfdf2) (Video)
25. [Lecture 25: Ethereum 4​](https://invisiblenetwork.ai/learn/nptel/106105235/b863f697ae3c) (Video)
26. [Lecture 26: Consensus for Permissioned Models​](https://invisiblenetwork.ai/learn/nptel/106105235/134d4ab4d629) (Video)
27. [Lecture 27: State Machine Replication as Distributed Consensus​](https://invisiblenetwork.ai/learn/nptel/106105235/d2b18c8e11b1) (Video)
28. [Lecture 28: Paxos](https://invisiblenetwork.ai/learn/nptel/106105235/be3235f7e77c) (Video)
29. [Lecture 29: Paxos – Safety and Liveness​](https://invisiblenetwork.ai/learn/nptel/106105235/6746726265c1) (Video)
30. [Lecture 30: Byzantine Faults​](https://invisiblenetwork.ai/learn/nptel/106105235/7b28f5fa8eb2) (Video)
31. [Lecture 31: Byzantine Agreement Protocols​](https://invisiblenetwork.ai/learn/nptel/106105235/3706684d73a4) (Video)
32. [Lecture 32: Safety and Liveness of PBFT​](https://invisiblenetwork.ai/learn/nptel/106105235/28a3ac4ca42f) (Video)
33. [Lecture 33: Enterprise Blockchains​](https://invisiblenetwork.ai/learn/nptel/106105235/acb8a990192f) (Video)
34. [Lecture 34: Hyperledger Fabric 1](https://invisiblenetwork.ai/learn/nptel/106105235/b09bd926bc79) (Video)
35. [Lecture 35: Hyperledger Fabric 2​](https://invisiblenetwork.ai/learn/nptel/106105235/cc98d4a6a095) (Video)
36. [Lecture 36: Hyperledger Fabric 3​](https://invisiblenetwork.ai/learn/nptel/106105235/8f091a761427) (Video)
37. [Lecture 37: Hyperledger Fabric 4​](https://invisiblenetwork.ai/learn/nptel/106105235/e6e8bdf58058) (Video)
38. [Lecture 38: Consensus Scalability​](https://invisiblenetwork.ai/learn/nptel/106105235/4fa49b9a0a2e) (Video)
39. [Lecture 39: Bitcoin-NG](https://invisiblenetwork.ai/learn/nptel/106105235/18bb9886df12) (Video)
40. [Lecture 40: Collective Signing (CoSi)​](https://invisiblenetwork.ai/learn/nptel/106105235/30a674d07f9c) (Video)
41. [Lecture 41: ByzCoin​](https://invisiblenetwork.ai/learn/nptel/106105235/f3df5861ce5d) (Video)
42. [Lecture 42: Algorand​](https://invisiblenetwork.ai/learn/nptel/106105235/18ab636652d3) (Video)
43. [Lecture 43: Identity Management - I​](https://invisiblenetwork.ai/learn/nptel/106105235/e275532764c4) (Video)
44. [Lecture 44: Identity Management - II​](https://invisiblenetwork.ai/learn/nptel/106105235/3fe8a3b81b62) (Video)
45. [Lecture 45: Identity Management - III​](https://invisiblenetwork.ai/learn/nptel/106105235/0f3c8fa29ebf) (Video)
46. [Lecture 46: Blockchain Interoperability - I​](https://invisiblenetwork.ai/learn/nptel/106105235/d3e05bf00c62) (Video)
47. [Lecture 47: Blockchain Interoperability - II​](https://invisiblenetwork.ai/learn/nptel/106105235/a1edaed1c419) (Video)
48. [Lecture 48: Blockchain Interoperability - III​](https://invisiblenetwork.ai/learn/nptel/106105235/8e59ec1edc3d) (Video)
49. [Lecture 49: Hyperledger Indy I](https://invisiblenetwork.ai/learn/nptel/106105235/20ed64b98354) (Video)
50. [Lecture 50: Hyperledger Indy II](https://invisiblenetwork.ai/learn/nptel/106105235/1def9ad2f5e6) (Video)
51. [Lecture 51: Hyperledger Aries](https://invisiblenetwork.ai/learn/nptel/106105235/b593bb49ac44) (Video)
52. [Lecture 52: Blockchain Security - I?](https://invisiblenetwork.ai/learn/nptel/106105235/dd8eeb42a104) (Video)
53. [Lecture 53: Blockchain Security - II?](https://invisiblenetwork.ai/learn/nptel/106105235/08c8d8180df4) (Video)
54. [Lecture 54: Blockchain Security - III?](https://invisiblenetwork.ai/learn/nptel/106105235/38b88ee7105d) (Video)
55. [Lecture 55: Use Cases?](https://invisiblenetwork.ai/learn/nptel/106105235/c390d0c7cb27) (Video)
56. [Lecture 56: A Potential Use Case – From a Critics Perspective​](https://invisiblenetwork.ai/learn/nptel/106105235/ac0ba97abb77) (Video)
57. [Lecture 57: Blockchain in Financial Services​](https://invisiblenetwork.ai/learn/nptel/106105235/7b953ec0c764) (Video)
58. [Lecture 58: Public Sector Use Cases​](https://invisiblenetwork.ai/learn/nptel/106105235/e2b9e936d45c) (Video)
59. [Lecture 59: Blockchain for Decentralized Marketplace (Part 1)​](https://invisiblenetwork.ai/learn/nptel/106105235/e34844408ee8) (Video)
60. [Lecture 60: Blockchain for Decentralized Marketplace (Part 2)​](https://invisiblenetwork.ai/learn/nptel/106105235/09a884d24082) (Video)
61. [Live Session 23-02-2022](https://invisiblenetwork.ai/learn/nptel/106105235/bf614f1e2f71-2) (Video)
62. [Live Session 16-03-2022](https://invisiblenetwork.ai/learn/nptel/106105235/68a8c1c3baf2-2) (Video)
63. [Live Session 13-04-2022](https://invisiblenetwork.ai/learn/nptel/106105235/13b7863c24c6-2) (Video)
64. [Live Session 21-03-2024](https://invisiblenetwork.ai/learn/nptel/106105235/913d24058de7-2) (Video)
65. [Live Session 05-04-2024](https://invisiblenetwork.ai/learn/nptel/106105235/0483ffc75675-2) (Video)
66. [Live Session 18-04-2024](https://invisiblenetwork.ai/learn/nptel/106105235/eab89a3458ad-2) (Video)
67. [Live Session 21-02-2025](https://invisiblenetwork.ai/learn/nptel/106105235/2c9d3265c353-2) (Video)
68. [Live Session 28-03-2025](https://invisiblenetwork.ai/learn/nptel/106105235/cc46b341f39e-2) (Video)
69. [Live Session 17-04-2025](https://invisiblenetwork.ai/learn/nptel/106105235/348ddd4db3c8-2) (Video)