The document discusses electronic signatures for citizens' initiative draft bills in Brazil. It describes how the Mudamos app turns smartphones into digital pens to allow citizens to sign initiative petitions electronically. Signatures collected through the app are tracked and stored on the blockchain, making them verifiable through a public algorithm even if the app is discontinued. The blockchain allows each piece of data, like a citizen's name and signature, to be independently verified in a transparent manner.

1. Electronic signatures

2. Mudamos
The problem

3. Mudamos app turns smartphones into digital pens
to sign citizens' initiative draft bills.
Electronic Signatures
Eliminating paper to propose popular initiative bills

4. Electronic Signatures
Multiple authentications and verifications

5. Electronic Signatures
Trackable signatures lists

6. Why Blockchain?

9. How Blockchain?

10. Blockchain beyond the block
Blockchain is not an univocal technology

11. Mudamos
Every piece of data is verifiable through a public algorithm
Even if the app is discontinued,
the signatures still can be verified
Subscriber’s data (message):
Thiago Alves Dias;20530000;139170200302;2017-02-20T18:39:13.124Z;Lei da Ficha Limpa;3
Subscriber’s public identification (address):
1LZk8TPrt77rV6uSoaZWErtaZY1EPwsDm
You can verify this data at https://insight.bitpay.com/messages/verify
Signature:
H0dxoA6jnT0azn34mgjLSgMIclY57wy9gbwf9woCuQs2NwiFOw0UyWXZHMZy
Rvusd/l0kFFrRyEaeBXZW9cxWw0=

12. Mudamos
Every piece of data is verifiable through a public algorithm

13. Lessons and
Learns

14. THANK YOU
ITS Rio
www.itsrio.org
Marco Konopacki
marco@itsrio.org
Phone number:
3486-0390