Demystifying Blockchain Tatham Oddie, @tathamoddie Head of Software Development
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Demystifying Blockchain
Tatham Oddie, @tathamoddie
Head of Software Development
A database.
A database that’s:
tamper proof,
distributed,
and supports decentralised consensus.
Alex -10
Blake +10
Blake -20
Tyler +20
Alex -10
Blake +10
Blake -20
Tyler +20
Alex -10
Blake +15
Blake -10
Tyler +20
Alex -10
Blake +10
Blake -20
Tyler +20
Alex -10
Blake +10
Blake -20
Tyler +20
Alex -10
Blake +10
Blake -20
Tyler +20
Alex -10
Blake +10
Blake -20
Tyler +20
distributed,
Alex -10
Blake +10
Blake -20
Tyler +20
Alex -10
Blake +10
Blake -20
Tyler +20
Alex -10
Blake +10
Blake -20
Tyler +20
Alex -10
Blake +10
Blake -20
Tyler +20
Alex -10
Blake +10
Blake -20
Tyler +20
Alex -10
Blake +10
Blake -20
Tyler +20
Alex -10
Blake +10
Blake -20
Tyler +20
Alex -10
Blake +10
Blake -20
Tyler +20
Alex -10
Blake +10
Blake -20
Tyler +20
Alex -10
Blake +10
Blake -20
Tyler +20
Alex -10
Blake +10
Blake -20
Tyler +20
Alex -10
Blake +10
Blake -20
Tyler +20
Alex -10
Blake +10
Blake -20
Tyler +20
Alex -10
Blake +10
Blake -20
Tyler +20
Alex -10
Blake +10
Blake -20
Tyler +20
Alex -10
Blake +15
Blake -20
Tyler +20
Alex -10
Blake +10
Blake -20
Tyler +20
tamper proof,
Hashing
“aog”
1a7ddd3dee44966c9c0cdd25b348768921aa054f96fb160a95a677747947d615
“AOG”
9e51ab0b701253e5136c85a3e2fb5b1db9ec5e7166b2ae394594fdf5b458e6cc
This PPTX
16838de5956e9fc13a2c7da74d4004172e3ee5ce07c89a930ced473b5effcb77
1.15792089237316 × 1077
My employment agreement
65ec3e806b64e0a9336df063f74791307539498a3cd6e7af63e51ec0669d4a3c
Txn
Txn
Txn
Txn
0x9e51ab0b70125…
0x9e51ab0b70125…
Txn
Txn
Txn
Txn
0x16838de5956e9…
0x16838de5956e9…
Txn
Txn
Txn
Txn
0x65ec3e806b64a…
0x6f1f35bad343b…
Alex -10
Blake +10
Blake -20
Tyler +20
Alex -10
Blake +15
Blake -20
Tyler +20
Alex -10
Blake +10
Blake -20
Tyler +20
0x6f1f35bad…
0x9e51ab0b7…
0x16838de59…
0x65ec3e806…
0x6f1f35bad…
0x9e51ab0b7…
0x16838de59…
0x65ec3e806…
0x6f1f35bad…
0x9e51ab0b7…
0x16838de59…
0x65ec3e806…
0x6f1f35bad…
0x0a1759c6d…
0x8fc062e9d…
0x368217ceb…
0x6f1f35bad…
0x9e51ab0b7…
0x16838de59…
0x65ec3e806…
0x6f1f35bad…
0x9e51ab0b7…
0x16838de59…
0x65ec3e806…
tamper proof,
0x6f1f35bad…
0x9e51ab0b7…
0x16838de59…
0x65ec3e806…
0x6f1f35bad…
0x9e51ab0b7…
0x16838de59…
0x65ec3e806…
0x6f1f35bad…
0x9e51ab0b7…
0x16838de59…
0x65ec3e806…
and supports decentralised consensus.
What for? Some relevant use cases…
Value transfer
Txn
Txn
Txn
Txn
0x9e51ab0b70125…
0x9e51ab0b70125…
0x16838de5956e9…
0x16838de5956e9…
0x65ec3e806b64a…
0x6f1f35bad343b…
Send #6 to Alex
Send #2 to Riley
Send #3 to Jessie
Distributed
Ledgers
Blockchain
Bitcoin
Txn
Txn
Txn
Txn
0x9e51ab0b70125…
0x9e51ab0b70125…
0x16838de5956e9…
0x16838de5956e9…
0x65ec3e806b64a…
0x6f1f35bad343b…
Send #6 to Alex
Send #2 to Riley
Send #3 to Jessie
Public Private Consortium
Txn
Txn
Txn
Txn
0x9e51ab0b70125…
0x9e51ab0b70125…
0x16838de5956e9…
0x16838de5956e9…
0x65ec3e806b64a…
0x6f1f35bad343b…
Send #6 to QXY
Send #2 to ZZ9
Send #3 to PZA
Value transfer
Attestation
Txn
Txn
Txn
Txn
0x9e51ab0b70125…
0x9e51ab0b70125…
0x16838de5956e9…
0x16838de5956e9…
0x65ec3e806b64a…
0x6f1f35bad343b…
Signed contract
Vote Sensor reading
Order lodgement
Title transfer
Order receipt
Provenance
0x9e51ab0b70125…
0x9e51ab0b70125…
0x16838de5956e9…
0x16838de5956e9…
0x65ec3e806b64a…
0x6f1f35bad343b…
Produced A
Produced B
C = A + B
Produced D
E = C + D
Sold E
Smart contracts
0x9e51ab0b70125…
0x9e51ab0b70125…
0x16838de5956e9…
0x16838de5956e9…
0x65ec3e806b64a…
0x6f1f35bad343b…
Contract: booking
with 24 hour
cancellation policy
Cancellation
Funds hold
Funds release
Page
We tend to overestimate the effect of a
technology in the short run, and
underestimate the effect in the long run.
We tend to overestimate the effect of a
technology in the short run
/ Copyright ©2017 by Readify Limited 43
Amara’s Law
Source: Dilbert Remix, https://twitter.com/stephenhuppert/status/657356122731466753
Source: Dilbert, 17 Nov 1995, http://dilbert.com/strip/1995-11-17
Is it for me? A starting checklist…
Relevance Checklist 1. Identified data to store
2. Need for multiple writers
3. Absence of trust
4. Need / want for disintermediation
5. Dependent transactions
6. Defined transaction rules
7. Link to real-world assets
@readify
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