| Token | #6189 of SciMatic Articles (ERC-1155), fixed supply 1,000,000 |
|---|---|
| Contract | 0x0E596B4bb924937aA35D9b342A90347ed6F05eF8 |
| Mint transaction | 0x847d30c4ed0531e06faa10cb70c126a2d52ebdd9779cff9103d38dcd0ed537c6 · block 12107558 |
| Minted | 2026-10-02 08:05 UTC |
| Hash on chain | 0x337db2148c6d78a92715cf55b43362a88f695fab76ed5cb7ec6108cc86bf19eb |
| SHA-256 of the record | 0x337db2148c6d78a92715cf55b43362a88f695fab76ed5cb7ec6108cc86bf19eb |
| Article today | Matches the anchored record. |
| Holder | Wallet | Minted | Holds now |
|---|---|---|---|
| SciMatic (10%) | 0xc35709AB…277732 | 100,000 | 100,000 |
| Ma Kristina Casandra Leviste | 0xDc5713aa…9d3A9B | 300,000 | 300,000 |
| Maria Celerina Oreta | 0x132725D4…5c87cF | 300,000 | 300,000 |
| Melchor Espiritu | 0x9155D378…8f3853 | 300,000 | 300,000 |
Canonical JSON (keys sorted, no spaces, UTF-8). Its SHA-256 is the hash on chain. The abstract here is gemini shortened, not the author's own text.
{"abstract":"This mixed-method study examined the difficulties faced by 100 Grade 7 students in Gumaca, Quezon, in learning mathematics, aiming to provide a basis for an intervention program. Respondents were profiled by age, sex, and first-quarter mathematics grades. The majority of respondents were 12 to 13 years old, with males outnumbering females, and most students having grades ranging from 81 to 90. Difficulties identified included performing geometric construction, adding and subtracting negative numbers, solving word problems involving percentages, and understanding the logical progression of concepts. Students reported always experiencing difficulty with word problems involving percentages. Significant differences in learning difficulties were found when learners were grouped by sex and grade. Recommendations included professional development for school administrators, parental reinforcement of basic math skills, additional support from teachers, and student utilization of learning resources.","abstract_source":"gemini_shortened","authors":["Ma Kristina Casandra Leviste","Maria Celerina Oreta","Melchor Espiritu"],"date":"2025-08-19","doi":"10.70838/pemj.450402","id":6189,"issue":4,"journal":{"issn":"2822-4353","name":"Psychology and Education: A Multidisciplinary Journal"},"pdf_sha256":"b2745c37d7adc6ae37de4edea8c120171461ed62234cee496a677f39e7fd794d","schema":"scimatic-article/1","title":"Difficulties in Learning Mathematics among Grade 7 Learners in Gumaca, Quezon: Basis for Intervention Program","volume":45}
1. The record, from the token's own metadata:
printf '%s' "$(curl -s https://scimatic.org/nft/articles/6189.json | jq -r .canonical_record)" | sha256sum
2. The hash stored on chain (contentHash(6189)):
curl -s https://rpc.scimatic.net -H 'content-type: application/json' \
-d '{"jsonrpc":"2.0","id":1,"method":"eth_call","params":[{"to":"0x0E596B4bb924937aA35D9b342A90347ed6F05eF8","data":"0xf3e0c290000000000000000000000000000000000000000000000000000000000000182d"},"latest"]}'
The two must be equal (the second with a 0x in front).