| Token | #31 of SciMatic Articles (ERC-1155), fixed supply 1,000,000 |
|---|---|
| Contract | 0x0E596B4bb924937aA35D9b342A90347ed6F05eF8 |
| Mint transaction | 0xf4e841dde4c5fe2463a90d4495458968436231476646e8971cb2d21f1edc6cad · block 12096774 |
| Minted | 2026-10-01 17:07 UTC |
| Hash on chain | 0x0a5d064379123a52d6b894066cb60e0e5b961f4116d48a29525ac5ca48a091ba |
| SHA-256 of the record | 0x0a5d064379123a52d6b894066cb60e0e5b961f4116d48a29525ac5ca48a091ba |
| Article today | Matches the anchored record. |
| Holder | Wallet | Minted | Holds now |
|---|---|---|---|
| SciMatic (10%) | 0xc35709AB…277732 | 100,000 | 100,000 |
| Naeemullah | 0x7254d310…C695D1 | 225,000 | 225,000 |
| Abdul Haseeb | 0xF8C4D25A…812fA0 | 225,000 | 225,000 |
| Faheem Shah | 0x1011180C…acC69D | 225,000 | 225,000 |
| Tasneem Gul Kazi | 0x59De000D…A38037 | 225,000 | 225,000 |
Canonical JSON (keys sorted, no spaces, UTF-8). Its SHA-256 is the hash on chain.
{"abstract":"Single drop microextraction (SDME) combined with electrothermal atomic absorption spectrometry was proposed to extract Silver (Ag) from aqueous samples into a drop of ionic liquid (1-butyl-3-methylimidazolium hexafluorophosphate [C4MIM][PF6]), after complexation with 8-hydroxyquinoline (8HQ). The multivariate strategy was applied to estimate the optimum values of experimental factors for the recovery of Ag. The limit of detection and enhancement factor were 1.12 ng L-1 and 80, respectively. The validity and accuracy of proposed method was checked by analysis of real water sample through standard addition method. The proposed method was successfully applied to determine Ag in different fresh canal water samples.","abstract_source":"original","authors":["Naeemullah","Abdul Haseeb","Faheem Shah","Tasneem Gul Kazi"],"date":"2017","doi":"10.5281/zenodo.2647874","id":31,"issue":1,"journal":{"issn":"2651-4338","name":"Journal of Ongoing Chemical Research"},"pdf_sha256":"f2487f609833227edeeeaabd1ecfe124ddc4f2f13442c9abf26e8ff4fe72c465","schema":"scimatic-article/1","title":"Single drop microextraction to analyze trace of silver complexed with 8-hydroxyquinoline in fresh and waste water samples using a multivariate approach","volume":3}
1. The record, from the token's own metadata:
printf '%s' "$(curl -s https://scimatic.org/nft/articles/31.json | jq -r .canonical_record)" | sha256sum
2. The hash stored on chain (contentHash(31)):
curl -s https://rpc.scimatic.net -H 'content-type: application/json' \
-d '{"jsonrpc":"2.0","id":1,"method":"eth_call","params":[{"to":"0x0E596B4bb924937aA35D9b342A90347ed6F05eF8","data":"0xf3e0c290000000000000000000000000000000000000000000000000000000000000001f"},"latest"]}'
The two must be equal (the second with a 0x in front).