Back with another #FreeLoveFriday. Last time, we covered how Mastercoin/@Omni_Layer pioneered digital asset issuance on blockchains. Today, let’s discuss @Chainlink and the vital role it plays in connecting blockchains to the real world.

I have said repeatedly that digital asset issuance is the killer application for blockchains. The next frontier is bringing real world assets to networks like @AvalancheAVAX, but we often face a significant problem:
Namely, how do you get data from the real world onto blockchains and into applications running on them? More critically, how do you achieve that securely and transparently in real-time? Smart contracts are tamper-proof, but they're only as reliable as their input data.
Enter ChainLink in September 2017, with a whitepaper outlining a vision for a decentralized network of “oracles,” entities that inject facts from the external world into blockchains in a suitable format for smart contracts.
Until ChainLink, oracles were trusted and centralized. This is a huge problem for high-value assets and smart contracts. High value projects, such as @CelsiusNetwork, @synthetix_io, @Aaveaave and others depend critically on oracle data.
As these networks grow to handle more value, “Oracle Extractable Value” goes up and oracle security becomes a significant issue.
In 2018, ChainLink commercialized “Town Crier” technology built by @initc3org at Cornell. Town Crier uses Intel’s SGX technology to harden their defenses against tampering and reduce the trust required of the oracle operator.
@SergeyNazarov and team have done an amazing job in overhauling what we knew about oracles, strengthening smart contracts, and spurring healthy competition with more oracle projects.
So what’s next? I think one of the biggest challenges facing oracles is how to deliver granular, real-time data at low cost. I have some ideas for how to solve these for good, but I’ll save them for another thread.
Let’s just say that Avalanche subnets and ChainLink’s decentralized architecture are a very good match, and that’s one of the many reasons why we have forged a partnership.

More from Crypto

1/ A thread on Nexgen’s Arrow & the #uranium cycle ($NXE)


2/ Given the scale and cost structure of Arrow, it makes sense that investors are intensely focused on its delivery timeline. This thread will discuss possible timelines, current market expectations (i.e., what’s “priced in”) & how different Arrow scenarios will impact the mkt.

3/ As you can see from the litany of responses to Michael’s tweet, there is great skepticism in the market regarding Arrow’s timeline. This is largely due to a bearish narrative conveyed by competing CEO’s whose assets only hold value if Arrow is substantially delayed.

4/ Those who played “King of the Hill” as a child would remember that it is the person at the top who is constantly attacked, not the kid sitting at the bottom of the hill in the mud. No one cares enough about that kid to attack them. This is a good parable for $NXE & Uranium.

5/ First a quick note on “this cycle” – Segra generally defines this cycle as the deficits forecasted from the mid-2020s to late-2030s. When people imply an asset producing in the mid-to-late 2020s will “miss the cycle”, they clearly have not done any real S/D modelling.
Out of curiosity I dug into how NFT's actually reference the media you're "buying" and my eyebrows are now orbiting the moon

Short version:

The NFT token you bought either points to a URL on the internet, or an IPFS hash. In most circumstances it references an IPFS gateway on the internet run by the startup you bought the NFT from.

Oh, and that URL is not the media. That URL is a JSON metadata file

Here's an example. This artwork is by Beeple and sold via Nifty:

https://t.co/TlJKH8kAew

The NFT token is for this JSON file hosted directly on Nifty's servers:

https://t.co/GQUaCnObvX


THAT file refers to the actual media you just "bought". Which in this case is hosted via a @cloudinary CDN, served by Nifty's servers again.

So if Nifty goes bust, your token is now worthless. It refers to nothing. This can't be changed.

"But you said some use IPFS!"

Let's look at the $65m Beeple, sold by Christies. Fancy.

https://t.co/1G9nCAdetk

That NFT token refers directly to an IPFS hash (https://t.co/QUdtdgtssH). We can take that IPFS hash and fetch the JSON metadata using a public gateway:

https://t.co/CoML7psBhF

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