Understanding Anchoring and Hashing in Blockchain Security

Did you know that hasing does not secure data on blockchain? It is a typical misunderstanding about this method of application of blockchain. When you publish a hash sum of your data on blockchain you secure only this hash sum, not the data itself. So if hash is a digital fingerprint of data, then securing it does not make sense when your finger is cut off. Hashing on blockchain helps only to check data authenticity.
Hashing is a kind of anchoring.Though anchoring is broader, as it means publishing any kind of metadata.
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Watch next:

⁍ Blockchain VS DLT - Is every chain of blocks the blockchain? - https://youtu.be/Nfb_M5SGMx4

⁍ How to create Databases and dApps on Blockchain? - https://youtu.be/02-SV1Gehyo

⁍ Does cryptocurrency have an intrinsic value? Can blockchain exist without cryptocurrency? - https://youtu.be/bdrS2BW0ghc

⁍ CASE STUDY: Blockchain Use in Land Registry in the Republic of Georgia - https://youtu.be/5Y8atd03s74


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0:00 | Intro
1:28 | What is anchoring on blockchain?
3:39 | What is hashing on blockchain?
6:21 | Conclusion about hashing on blockchain
6:55 | End words