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A dissymmetry in the figures re lated to the covid-19 pandemic in the world: what factors explain the difference between africa and the rest of the world?

Cheikh Faye, Cheikh Tidiane Wade, Ibrahima Demba Dione
Journal of Ongoing Chemical Research · 2020
Token #223
✓ Verified on SciChain. The record below hashes to exactly the content hash stored on chain for token #223.
Token#223 of SciMatic Articles (ERC-1155), fixed supply 1,000,000
Contract0x0E596B4bb924937aA35D9b342A90347ed6F05eF8
Mint transaction0x7afaa9213c92af23044e507ec8512ed6d826b9068cf9a17c8880f9fe28ca8024 · block 12096775
Minted2026-10-01 17:07 UTC
Hash on chain0x775df4f66c467db56deb1202f90dc762d1112ec277cf32838ad1c9ec1d9f7ed3
SHA-256 of the record0x775df4f66c467db56deb1202f90dc762d1112ec277cf32838ad1c9ec1d9f7ed3
Article today Matches the anchored record.

Allocation at minting

HolderWalletMintedHolds now
SciMatic (10%) 0xc35709AB…277732 100,000 100,000
Cheikh Faye 0xc0A27bC0…E50dD8 300,000 300,000
Cheikh Tidiane Wade 0xAa51D519…B9512C 300,000 300,000
Ibrahima Demba Dione 0x5e175dC5…6e75A9 300,000 300,000

The anchored record

Canonical JSON (keys sorted, no spaces, UTF-8). Its SHA-256 is the hash on chain.

{"abstract":"Humanity has experienced outbreaks for millennia, from epidemics limited to pandemics that have claimed many victims and changed the course of civilizations. The advent of vaccines has eradicated some of the serious pathogens and reduced many others. However, pandemics are still part of our modern world, as we continue to have pandemics as devastating as HIV and as alarming as severe acute respiratory syndrome, Ebola and the Middle East respiratory syndrome. The Covid-19 epidemic with 0-exponential contamination curves reaching 3 million confirmed cases should not have come as a surprise, nor should it have been the last pandemic in the world. In this article, we try to summarize the lost opportunities as well as the lessons learned, hoping that we can do better in the future. The objective of this study is to relate the situation of Covid-19 in African countries with those of the countries most affected by the pandemic. It also allows us to verify how, according to the observed situation, the African ecosystem seems to be much more resilient compared to that of other continents where the number of deaths is in the thousands. To verify this, the diagnosed morbidity and mortality reported for different states of the world are compared to the ages of life and the average annual temperature of these states. The results show that the less dramatic balance of the African continent compared to other continents is partly linked to the relatively high temperatures on the continent but also to the relatively young character of its population.","abstract_source":"original","authors":["Cheikh Faye","Cheikh Tidiane Wade","Ibrahima Demba Dione"],"date":"2020","doi":null,"id":223,"issue":2,"journal":{"issn":"2651-4338","name":"Journal of Ongoing Chemical Research"},"pdf_sha256":"ff06c64a5e203f77275c24ee0062966cedcb34a01c0b9e31f6b7d7faa5387508","schema":"scimatic-article/1","title":"A dissymmetry in the figures re lated to the covid-19 pandemic in the world: what factors explain the difference between africa and the rest of the world?","volume":5}

Check it yourself

1. The record, from the token's own metadata:

printf '%s' "$(curl -s https://scimatic.org/nft/articles/223.json | jq -r .canonical_record)" | sha256sum

2. The hash stored on chain (contentHash(223)):

curl -s https://rpc.scimatic.net -H 'content-type: application/json' \
  -d '{"jsonrpc":"2.0","id":1,"method":"eth_call","params":[{"to":"0x0E596B4bb924937aA35D9b342A90347ed6F05eF8","data":"0xf3e0c29000000000000000000000000000000000000000000000000000000000000000df"},"latest"]}'

The two must be equal (the second with a 0x in front).