btproof
Security and privacy
timestamping
SHOW HN2013
How HN took it
5 positive, 8 neutral or asking, 0 mixed, 4 critical, out of 17 comments about the project. Thread score +0.07.
Idea: 4 for, 2 againstPerformance: 0 for, 1 againstPrivacy: 0 for, 1 againstPricing: 1 for, 0 against
The thread, comment by comment
Each row is a top-level comment and its replies, in HN's order. Select a cell to open that comment on HN.
positive neutral or mixed critical about another commenter or something else the maker
What HN said
What people liked
Nice work; glad it exists
From 1 comment
Nice work; I'm glad this exists. (There have been a few others... see for example the [bitnotar] project.) Some miners don't like such 'dust' (abandoned micro amounts) living…
gojomo on HN
Fee share going to miners is a nice touch
From 1 comment
It's a nice touch that such a large percentage of the Paypal price goes to the miners.
oscilloscope on HN
Novel use of p2p and blockchain technology
From 1 comment
One of the most exciting things about bitcoin is the innovation it has sparked in trustless p2p applications. Currencies are just the beginning. A timestamping/notary is one use.…
tlrobinson on HN
Objections
Embedding hashes in addresses creates dust outputs that burden nodes
From 2 comments
Correct me if I am wrong, but I would argue that creating these addresses with tiny leftover cash amounts creates more of a burden on bitcoin nodes than normal transactions.…
labawi on HNNice work; I'm glad this exists. (There have been a few others... see for example the [bitnotar] project.) Some miners don't like such 'dust' (abandoned micro amounts) living…
gojomo on HN
Could be abused to buy bitcoins with stolen PayPal funds
From 1 comment
Are you really letting people pay with PayPal to send BitCoins to an arbitrary address? If it's just 1 satoshi for $3 you might be fine (if PayPal doesn't notice), but don't even…
wayu on HN
Using blockchain for non-financial data is questionable
From 1 comment
While I applaud novel uses of technology I am a bit uneasy using the bitcoin blockchain for the purpose of something other than transferring financial value. Couldn't you create…
drcross on HN
Requests
Use OpenTimestamps or Merkle tree batching
From 2 comments
I think you are better off working with Peter Todd, a bitcoin developer working on opentimestamps (github.com/opentimestamps), rather than inventing your own thing. He's already…
gwillen on HNNice work; I'm glad this exists. (There have been a few others... see for example the [bitnotar] project.) Some miners don't like such 'dust' (abandoned micro amounts) living…
gojomo on HN
Store hash in transaction comment instead of address
From 2 comments
Are you really letting people pay with PayPal to send BitCoins to an arbitrary address? If it's just 1 satoshi for $3 you might be fine (if PayPal doesn't notice), but don't even…
wayu on HNI would suggest this to avoid losing coins. 1. Use SHA256 of your document as a private key. 2. Send some money (e.g. 0.01 BTC) to the address created from that private key. 3.…
oleganza on HN
Questions
How does it compare to SSL CA timestamp servers
From 1 comment
What are the advantages of using this for timestamps rather than the SSL CA timestamp servers? http://en.wikipedia.org/wiki/Trusted_timestamping I am looking for a way to prove…
j_s on HN
Why not post hash in newspaper or Usenet archives
From 1 comment
How would this compare to posting the hash in a public and frequently backed up way such that the date would be generally established by archives? For example, you could take out…
mikeash on HN
Alternatives named
OpenTimestamps
From 1 comment
I think you are better off working with Peter Todd, a bitcoin developer working on opentimestamps (github.com/opentimestamps), rather than inventing your own thing. He's already…
gwillen on HN
Bitnotar
From 1 comment
Nice work; I'm glad this exists. (There have been a few others... see for example the [bitnotar] project.) Some miners don't like such 'dust' (abandoned micro amounts) living…
gojomo on HN
bitcoinproof
From 1 comment
How does yours compare to this one http://vog.github.io/bitcoinproof/
tocomment on HN
SSL CA timestamp servers
From 1 comment
What are the advantages of using this for timestamps rather than the SSL CA timestamp servers? http://en.wikipedia.org/wiki/Trusted_timestamping I am looking for a way to prove…
j_s on HN