| Token | #206 of SciMatic Articles (ERC-1155), fixed supply 1,000,000 |
|---|---|
| Contract | 0x0E596B4bb924937aA35D9b342A90347ed6F05eF8 |
| Mint transaction | 0x27d34774487b4007251fff2143651366c38f016689482a9844e5e6c1c464213c · block 12096775 |
| Minted | 2026-10-01 17:07 UTC |
| Hash on chain | 0xeae7e5e93c77b52ba136c5e4248e734b856ffbbc5263943690f11f4c3f7f6bd7 |
| SHA-256 of the record | 0xeae7e5e93c77b52ba136c5e4248e734b856ffbbc5263943690f11f4c3f7f6bd7 |
| Article today | Matches the anchored record. |
| Holder | Wallet | Minted | Holds now |
|---|---|---|---|
| SciMatic (10%) | 0xc35709AB…277732 | 100,000 | 100,000 |
| Femi Obasun | 0xCA540a3a…de8001 | 900,000 | 900,000 |
Canonical JSON (keys sorted, no spaces, UTF-8). Its SHA-256 is the hash on chain.
{"abstract":"Coronavirus was never expected to become an international issue. However, the virus has managed to spread from China, where the first outbreak was reported to the United States. Despite reassurances from leaders and other officials, the virus is continually going out of hand. The possibility of the virus being spread by mosquitoes is even more threatening. There is a need to conduct more research to identify the best methods of containing the condition before it becomes a global pandemic.","abstract_source":"original","authors":["Femi Obasun"],"date":"2020","doi":"10.5281/zenodo.3735345","id":206,"issue":1,"journal":{"issn":null,"name":"Journal of Public Health Research and Metrics"},"pdf_sha256":"e24c7113b2c433d31e516dd07c0613651b8e0548ed0629233950a59a1a69de45","schema":"scimatic-article/1","title":"The Human Corona-virus Circulation in the USA, 2019-2020","volume":1}
1. The record, from the token's own metadata:
printf '%s' "$(curl -s https://scimatic.org/nft/articles/206.json | jq -r .canonical_record)" | sha256sum
2. The hash stored on chain (contentHash(206)):
curl -s https://rpc.scimatic.net -H 'content-type: application/json' \
-d '{"jsonrpc":"2.0","id":1,"method":"eth_call","params":[{"to":"0x0E596B4bb924937aA35D9b342A90347ed6F05eF8","data":"0xf3e0c29000000000000000000000000000000000000000000000000000000000000000ce"},"latest"]}'
The two must be equal (the second with a 0x in front).