Verify

Verified on Base

This article has not changed since Vitahash recorded it on the Base blockchain. Everything below can be checked without taking our word for any of it.

🏃‍♂️ What’s the best exercise for metabolic syndrome?

Chayakrit Krittanawong, MD, FACC, FAHA, FSCAI · 9 Oct 2026

Stamp ID
STAMP-2026-1009-EU35HEOH
Content hash
97e1e173b60cb7d44d5c4506d5125f31ce1b9d091c3d3f2d10d8a211433f01aa
Day recorded
2026-10-09
Articles recorded that day
18
Attestation UID
0xc9f2778eaabda8f3825b12ccddbe0d2fe021b9fdb858c7bf7ef391d02a1bd650
View on EAS
Transaction
0x772581b0c402c238fb58b0e907078d4c05f8f9566bea1e401e4b2ac07d7e4996
View on Basescan
Stamped
10 Oct 2026

Recorded on Base using canonicalization v2 and record format v1.

How this article reaches the blockchain

It was combined with the other 17 articles published that day, one step at a time, until the whole day became a single value. That one value is what Vitahash wrote to the blockchain. Change a single character of this article and the starting value below changes, so none of the steps would land on the recorded one.

Starting value for this article
0xc889173348ce7a60c8e1dea3e8a2a7a1ad03b6fd120dcc7f9a903d19b232368c

Built from this article's content hash and its stamp ID, as sha256(0x00 || sha256(utf8(stampId)) || contentHash).

  1. Step 1, combined with the value after it
    0x904b2d6ced6bbfa91a7dfe9e77c88eeb19d6921f8f81990effc4f24f155233a7
    0xefe67e8818fed37489d7df9f4ccef876c449a371f6aa50ca6c7ee89876435ae8
  2. Step 2, combined with the value before it
    0xc08b27e8a2d549dec72fb176403f4f93fa2e2351f43dff765d15a7ffbc41574f
    0xeb001c580d29d4587f4a3e8aafc9e961640c7ff2d9442e2f96576d645b8f22a8

    This is the value for the whole day.

Value these steps arrive at
0xeb001c580d29d4587f4a3e8aafc9e961640c7ff2d9442e2f96576d645b8f22a8

What the blockchain says

Two values, reached two different ways. The one above was worked out from this article. The one below was read back from the record on Base.

Worked out from this article
0xeb001c580d29d4587f4a3e8aafc9e961640c7ff2d9442e2f96576d645b8f22a8
Read from Base
0xeb001c580d29d4587f4a3e8aafc9e961640c7ff2d9442e2f96576d645b8f22a8
Read it yourself on EAS

They are the same value, so this article was published that day with exactly the text above.

Check it yourself

Every number on this page came from Vitahash. Copy the article's exact text below and check it against the hash above, using any SHA-256 tool.

{"abstract":null,"agreement":false,"authors":[{"identity":"Drkrittanawong","position":1,"role":"solo","weight":1.0000}],"body":{"content":[{"content":[{"text":"The answer may be more complicated than you think!","type":"text"}],"type":"para…

Copy this text, paste it into any SHA-256 tool, and compare the result with the hash shown above. If the two match, this is exactly what Vitahash recorded.

For a technical reader: the terminal route

  1. 1. Hash the article yourself

    This downloads the exact text Vitahash hashed, in the exact form it hashed it, and hashes it again on your machine. Nothing Vitahash wrote runs here.

    curl -s "https://api.vitahash.org/api/verify/STAMP-2026-1009-EU35HEOH/canonical" | shasum -a 256

    Should print 97e1e173b60cb7d44d5c4506d5125f31ce1b9d091c3d3f2d10d8a211433f01aa

  2. 2. Build this article's starting value

    The stamp ID is folded in with the hash, so one article's record can never stand in for another's.

    STAMP=STAMP-2026-1009-EU35HEOH CONTENT=97e1e173b60cb7d44d5c4506d5125f31ce1b9d091c3d3f2d10d8a211433f01aa DIGEST=$(printf '%s' "$STAMP" | shasum -a 256 | cut -d' ' -f1) printf '00%s%s' "$DIGEST" "$CONTENT" | xxd -r -p | shasum -a 256

    Should print c889173348ce7a60c8e1dea3e8a2a7a1ad03b6fd120dcc7f9a903d19b232368c

  3. 3. Combine step 1

    The value you have goes first, then the published value.

    printf '01%s%s' "c889173348ce7a60c8e1dea3e8a2a7a1ad03b6fd120dcc7f9a903d19b232368c" "904b2d6ced6bbfa91a7dfe9e77c88eeb19d6921f8f81990effc4f24f155233a7" | xxd -r -p | shasum -a 256

    Should print efe67e8818fed37489d7df9f4ccef876c449a371f6aa50ca6c7ee89876435ae8

  4. 4. Combine step 2

    The published value goes first, then the value you have.

    printf '01%s%s' "c08b27e8a2d549dec72fb176403f4f93fa2e2351f43dff765d15a7ffbc41574f" "efe67e8818fed37489d7df9f4ccef876c449a371f6aa50ca6c7ee89876435ae8" | xxd -r -p | shasum -a 256

    Should print eb001c580d29d4587f4a3e8aafc9e961640c7ff2d9442e2f96576d645b8f22a8

  5. 5. Compare with the blockchain

    The last value above is what the whole day came to. Read the record on Base and check its merkleRoot field is the same. Vitahash is not involved in this step at all.

    https://base.easscan.org/attestation/view/0xc9f2778eaabda8f3825b12ccddbe0d2fe021b9fdb858c7bf7ef391d02a1bd650

The rules these commands follow are written down in full, so anyone can reimplement them.

Read the specification