[Official Support Thread] Goochain : search engine for the Bitcoin blockchain

[the_beast]

I haven't so much communicate about Goochain using this channel recently.

Just a bump up to tell you about new features:
- HD Wallet import tools (various models: Trezor, Ledger). See dedicated page
- ProofOfExistence transactions detected (when a tx is that kind, it shows a dedicated icon)
- Multi-paper wallet support: now accepts several addresses separated by comma.

Also we manage some slight graphical clean up on transactions listing.

Check out the new slide to see a quick presentation about Goochain service.

[TheRealSteve]

- ProofOfExistence transactions detected

Very cool - looks like GooChain is slowly but surely becoming a bit of a hub for determining ID-based service relationships to addresses and transactions

[the_beast]

We didn't perform so much work on the blockchain search engine, because we worked on a new product : a new affordable wallet for everyone.

Goochain Citadelle, the most affordable hardware wallet.
Goochain Citadelle is a Hardware Wallet that brings Bitcoin technology to the next level. Seamless, the Citadelle is easy to setup and works in pair with a special application tailored for the device.
The very reduced form-factor makes it fit in your pocket and follow you wherever you go. The dongle has been designed to be used with a second factor authentication to enhance the security and the transaction experience, for every Bitcoin users.  Enjoy an easy to use wallet, without sacrificing security.



Security
•   Banking grade hardware security (provided by Ledger)
•   Multi-channels  Second Factor Authentication (powered by GreenAddress API)
•   Full end-to-end encryption with the servers
•   Configurable spending limit

Handy
•   Fast and user-friendly transactions
•   Only remember your PIN access code
•   Tiny form factor, pocket wearable on a keyring
•   Multi platform (Windows, Linux, MacOS, Android)
•   Full easy installer on Windows
•   balance Watch-Only using Goochain web service

Affordable
•   The most affordable hardware wallet of the market
•   Can protect small amount of Bitcoins
•   Ideal for a gift or discover Bitcoin, at budget price


Citadelle product is fully Made in France

Price is 12 EUROS Excl. VAT
Only Bitcoins payment accepted.

Volume discount is 10 EUROS each unit with quantity 5.

OTG (micro) available for 2.5 EUROS (soon)

Worldwide delivery fees : 2€, 4€ for 5x.

Pre Order will be shipped in 2 or 3 weeks, when all the software will be finalize.


See more details there on our website:
https://goochain.net/citadelle


You can enter in the winning contest on Twitter "RT & Win" :
https://twitter.com/Goochain/status/656876955351031809


I'm considering to write up a dedicated topic for that product soon.

[binaryFate]

Scalability: still shokes on, for instance, 1NxaBCFQwejSZbQfWcYNwgqML5wWoE3rK4

[the_beast]

Yes, we're aware of this issue. Any address with more than 100'000 transactions are currently not working.
Unfortunately, we haven't spent so much ressources so far to handle that issue. We are working on a new internal system that will give soon, the basic info for every single addresses. As a first step, that still won't allow searching in "heavy" addresses. Then, we have some ways to improve the rest. Anyway there are lot of corner cases which are not easy to solve.

[binaryFate]

Yes, we're aware of this issue. Any address with more than 100'000 transactions are currently not working.
Unfortunately, we haven't spent so much ressources so far to handle that issue. We are working on a new internal system that will give soon, the basic info for every single addresses. As a first step, that still won't allow searching in "heavy" addresses. Then, we have some ways to improve the rest. Anyway there are lot of corner cases which are not easy to solve.

Any particular reason off-the-shelf tools such as Coinbase's Toshi or Bitpay's Insight are not suited to your use-case? They happily allow that kind of query right away and run fine on an average computer.

[the_beast]

Well, if you try Insight with the address you gave, it won't show anything at all. Toshi is far better, but it needs lots of disk space and a really high-end server machine.