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.

Stamp ID
STAMP-2026-1108-HUOXDKSU
Content hash
54f67daef036ea9594a7fb0a01778101553433717958f335edef0a2a0040693e
Day recorded
2026-11-09
Articles recorded that day
15
Attestation UID
0x1bb2e246680a04397b432d223734470d6ce47b75c89b35e7f7092df08b007c08
View on EAS
Transaction
0x0d6604a01395a1e7bd8141dba86ad9a0243b7713d0e2512c8cebfca881037e5e
View on Basescan
Stamped
9 Nov 2026

Recorded on Base using canonicalization v2 and record format v1.

How this article reaches the blockchain

It was combined with the other 14 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
0x4115cb03249e4fc45daee31c29f68e4793c8dcdce25f7c2680af970b8f7c413b

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 before it
    0xe69db25916dcc3c9ffea205ab023383c63e5e24a3f095e743c512150e21cb794
    0xfe6d3efb82bafd149fbf3f8f6fb939427693ef38c7bcdea3a6b6de51e5ca3148
  2. Step 2, combined with the value before it
    0x6703e3fd6313811f5cb88ed6b695146fdb288da718198839d802e8bd29c6a577
    0x3dd8e523004924f4f3c99bbacb87748d68aa3701b6159f943b0d9e590d68a89d
  3. Step 3, combined with the value before it
    0x7eb2ed0e0e18b94e3952996c961cbc2bfe8937a0a3a7ee01561ecd69585eb12e
    0x1af48d2f24d3b4525281700797451b50c58cc07806552eb1cc2e7d2dd141b158
  4. Step 4, combined with the value after it
    0x48bb8d36bc9e4989e1abd7db5b8019afde13c7ba60804c888de69b70b630cfd7
    0x633ebd26ef3198219cdb8a14837c36de2d43289e37d57c1b0e4544bfc4cc76dd

    This is the value for the whole day.

Value these steps arrive at
0x633ebd26ef3198219cdb8a14837c36de2d43289e37d57c1b0e4544bfc4cc76dd

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
0x633ebd26ef3198219cdb8a14837c36de2d43289e37d57c1b0e4544bfc4cc76dd
Read from Base
0x633ebd26ef3198219cdb8a14837c36de2d43289e37d57c1b0e4544bfc4cc76dd
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":"simple_recipes_daily","position":1,"role":"solo","weight":1.0000}],"body":{"content":[{"content":[{"text":"Looking for a simple, delicious dinner? This baked cod is light, flaky, an…

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-2026-1108-HUOXDKSU/canonical" | shasum -a 256

    Should print 54f67daef036ea9594a7fb0a01778101553433717958f335edef0a2a0040693e

  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-2026-1108-HUOXDKSU CONTENT=54f67daef036ea9594a7fb0a01778101553433717958f335edef0a2a0040693e DIGEST=$(printf '%s' "$STAMP" | shasum -a 256 | cut -d' ' -f1) printf '00%s%s' "$DIGEST" "$CONTENT" | xxd -r -p | shasum -a 256

    Should print 4115cb03249e4fc45daee31c29f68e4793c8dcdce25f7c2680af970b8f7c413b

  3. 3. Combine step 1

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

    printf '01%s%s' "e69db25916dcc3c9ffea205ab023383c63e5e24a3f095e743c512150e21cb794" "4115cb03249e4fc45daee31c29f68e4793c8dcdce25f7c2680af970b8f7c413b" | xxd -r -p | shasum -a 256

    Should print fe6d3efb82bafd149fbf3f8f6fb939427693ef38c7bcdea3a6b6de51e5ca3148

  4. 4. Combine step 2

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

    printf '01%s%s' "6703e3fd6313811f5cb88ed6b695146fdb288da718198839d802e8bd29c6a577" "fe6d3efb82bafd149fbf3f8f6fb939427693ef38c7bcdea3a6b6de51e5ca3148" | xxd -r -p | shasum -a 256

    Should print 3dd8e523004924f4f3c99bbacb87748d68aa3701b6159f943b0d9e590d68a89d

  5. 5. Combine step 3

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

    printf '01%s%s' "7eb2ed0e0e18b94e3952996c961cbc2bfe8937a0a3a7ee01561ecd69585eb12e" "3dd8e523004924f4f3c99bbacb87748d68aa3701b6159f943b0d9e590d68a89d" | xxd -r -p | shasum -a 256

    Should print 1af48d2f24d3b4525281700797451b50c58cc07806552eb1cc2e7d2dd141b158

  6. 6. Combine step 4

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

    printf '01%s%s' "1af48d2f24d3b4525281700797451b50c58cc07806552eb1cc2e7d2dd141b158" "48bb8d36bc9e4989e1abd7db5b8019afde13c7ba60804c888de69b70b630cfd7" | xxd -r -p | shasum -a 256

    Should print 633ebd26ef3198219cdb8a14837c36de2d43289e37d57c1b0e4544bfc4cc76dd

  7. 7. 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/0x1bb2e246680a04397b432d223734470d6ce47b75c89b35e7f7092df08b007c08

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

Read the specification