How secure is blockchain? Have they even be hacked?

1

---

What are your biggest hopes and fears regarding the future of this technology?

1

---

What is a merkle tree in blockchain?

1

---

What are the business benefits of blockchain?

1

---

What is geth’s “fast” sync?

1

---

What type of records can be kept in blockchain? Is there any restriction on the same?

1

---

What guarantees that a supply chain transaction is “valid” if there is no one checking that the delivered mass equals what the system says?

1

---

Is it true that a block in the blockchain can never have more than one parent block?

1

---

Does gas price determine when a transaction is processed?

1

---

Why blockchain is a trusted model of the transaction?

1

---

Explain the blind signature and how it is useful?

1

---

What is secret sharing? Will it have any benefit in blockchain technology?

1

---

What is secret sharing in blockchain technology?

1

---

How dapps are different from smart contracts?

1

---

Will blockchain change the world?

1

---