| Token | #211 of SciMatic Articles (ERC-1155), fixed supply 1,000,000 |
|---|---|
| Contract | 0x0E596B4bb924937aA35D9b342A90347ed6F05eF8 |
| Mint transaction | 0xf2f81c454126072d7c9844a53726ce38876c5cbdf7ba9459685e68cf38f7d2fa · block 12096775 |
| Minted | 2026-10-01 17:07 UTC |
| Hash on chain | 0x1a108fe87ee0749a89296c5aa0d99f8f1882c09392e8d957ae03b3942a75882f |
| SHA-256 of the record | 0x1a108fe87ee0749a89296c5aa0d99f8f1882c09392e8d957ae03b3942a75882f |
| Article today | Matches the anchored record. |
| Holder | Wallet | Minted | Holds now |
|---|---|---|---|
| SciMatic (10%) | 0xc35709AB…277732 | 100,000 | 100,000 |
| Hassan Aliyu Hassan | 0x00a1945D…D54fD0 | 900,000 | 900,000 |
Canonical JSON (keys sorted, no spaces, UTF-8). Its SHA-256 is the hash on chain.
{"abstract":"The number of cases of the COVID-19 being reported daily in Nigeria has risen slowly however, no study has been undertaken to evaluate the situation of the COVID-19 Confirmed cases, death cases, and Recovered cases. The contemporary study is undertaken to describes the COVID-19 current situation in Nigeria ranging from Confirmed cases, death cases and Recovered Cases from the period 27 February 2020 to 5 April 2020 in Nigeria. The study findings revealed that there is a daily increase of COVID-19 cases, few numbers of recovered and death cases during the period 27 February to 5 April 2020 in Nigeria.","abstract_source":"original","authors":["Hassan Aliyu Hassan"],"date":"2020","doi":null,"id":211,"issue":1,"journal":{"issn":"2651-4338","name":"Journal of Ongoing Chemical Research"},"pdf_sha256":"203110ee9b12de9c37933dbbb41dd3b6ae1ae8ce3ddef2e16ecde87af2c5297a","schema":"scimatic-article/1","title":"Coronavirus COVID-19: Current Situation in Nigeria","volume":5}
1. The record, from the token's own metadata:
printf '%s' "$(curl -s https://scimatic.org/nft/articles/211.json | jq -r .canonical_record)" | sha256sum
2. The hash stored on chain (contentHash(211)):
curl -s https://rpc.scimatic.net -H 'content-type: application/json' \
-d '{"jsonrpc":"2.0","id":1,"method":"eth_call","params":[{"to":"0x0E596B4bb924937aA35D9b342A90347ed6F05eF8","data":"0xf3e0c29000000000000000000000000000000000000000000000000000000000000000d3"},"latest"]}'
The two must be equal (the second with a 0x in front).