Overview

I tried registering an image on OpenSea, so this is a memo of my experience.

The page for the created item is below.

https://opensea.io/assets/ethereum/0x495f947276749ce646f68ac8c248420045cb7b5e/10640296615676167047199551942164304992363478966543389627838835760480269631489

Uploading to OpenSea

Uploading images to OpenSea was quite easy.

On the other hand, the prior steps of creating MetaMask and OpenSea accounts took some time. There are many articles about these procedures, so please refer to those.

Transferring from bitFlyer to MetaMask

I sent 0.005 ETH held in bitFlyer to MetaMask. The transfer fee cost 0.005 ETH ($7.72, 990.48 yen). (Expensive… lol)

Freezing Metadata

I attempted to freeze the metadata from the “Freeze” menu on the edit screen. This freezing also required the following gas fee.

0.00185631883313057 Ether ($2.87)

After the freeze was completed, the Metadata is displayed as “Frozen” as shown below.

Clicking on the link downloads the following JSON file.

{}""""indemaexamstgecee"rr_:inupar"tllki_"uou:nnrs"l"h:"iu:pj"fo"s"h:,t/t/pbsa:f/y/buevi-cv247.xnyeqtzl2izfky4.b"ag,pqpl/y#c?7mtapnmivfcels6ti=thftmtvpksy:w/2/jidpnfvs2.bi7o5/7itp3fzs7/iQfmuWbMyW/HiAmwavgPeL"i,nD8aDZf9HXfy14u3SNdZRTzbqgMQJ95Q3b"

Furthermore, from the image_url value, by accessing the URL or browsing bafybeic27xyqz2zk4bgqlyc7tpmvcl6itfmvkyw2jdnv2b757t3z7ifuby in the IPFS desktop app, I was able to view the image.

This confirms that these metadata (JSON) and images are managed on IPFS.

Summary

I was able to experience uploading images to OpenSea and freezing metadata and images.

I would like to continue experimenting with various things toward applying this to content management in digital archives.