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.

Stamp ID
STAMP-2026-0920-2BRFEBIF
Content hash
098b104fbad3607040a60df563742311d0e5f1146e9503add0a9f39bd58ea5dd
Day recorded
2026-09-21
Articles recorded that day
19
Attestation UID
0x8b3c2fd36a922edc6b9b5df7a32564ad6b8254e5e4d73310406d45385ea13aef
View on EAS
Transaction
0x7487c62e52e4f2f9b08c668465c50f1ad9bf79791f45570457388f46bcdbb8aa
View on Basescan
Stamped
22 Sept 2026

Recorded on Base using canonicalization v2 and record format v1.

How this article reaches the blockchain

It was combined with the other 18 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
0x5154c5770ced2973bf34cef7d48e6ae5fbd7efb2bd081c2889f89048d09a390c

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
    0x765427af27e106c13526ca1b6994ddb75a1404fa5ee4461f343eb15a784f6953
    0x0c8b677f8e343e5e21601e62f6fa2f8f238515f80ec93a3733e7fedc3bdb102b
  2. Step 2, combined with the value after it
    0x0aaf99524c4ce722f6307b65cab805bdadcaddf122d1a1fce2325c13bfd35cfe
    0xecec0fa3a92582e51cab9664b82d8f67ce0b9ba9fe0766904b0f2fec6b0796d9
  3. Step 3, combined with the value after it
    0xe5d0f70bc2a34d3af94354d76ac8b0828eec65a971d8cc2919b2c3a443ac48e4
    0x6e74ab88876a58402acac210af008b9f1012f01a329a0a8a206ba9a146828ecc
  4. Step 4, combined with the value after it
    0xa65919732d1594acc9afb550ed2ce10e8bf96a42ea9b49984733673443822e5e
    0x2e6ebaca17a3bf1331e377895837d2a1ed000ada39219e6311b1166e1f7b9603
  5. Step 5, combined with the value after it
    0x9ea770e708ff5a992ebbe1dc432ce6a573002e55cb9a4793a315029f9ce7b7ec
    0x86fe5b1cd501a45cbc53b8151487586f6954bc5f77a2874f0eb0602698444b31

    This is the value for the whole day.

Value these steps arrive at
0x86fe5b1cd501a45cbc53b8151487586f6954bc5f77a2874f0eb0602698444b31

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
0x86fe5b1cd501a45cbc53b8151487586f6954bc5f77a2874f0eb0602698444b31
Read from Base
0x86fe5b1cd501a45cbc53b8151487586f6954bc5f77a2874f0eb0602698444b31
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":"poweredbyplants","position":1,"role":"solo","weight":1.0000}],"body":{"content":[{"content":[{"text":"Choosing a vegan lifestyle can have benefits that go beyond what’s on your plat…

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-2026-0920-2BRFEBIF/canonical" | shasum -a 256

    Should print 098b104fbad3607040a60df563742311d0e5f1146e9503add0a9f39bd58ea5dd

  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-2026-0920-2BRFEBIF CONTENT=098b104fbad3607040a60df563742311d0e5f1146e9503add0a9f39bd58ea5dd DIGEST=$(printf '%s' "$STAMP" | shasum -a 256 | cut -d' ' -f1) printf '00%s%s' "$DIGEST" "$CONTENT" | xxd -r -p | shasum -a 256

    Should print 5154c5770ced2973bf34cef7d48e6ae5fbd7efb2bd081c2889f89048d09a390c

  3. 3. Combine step 1

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

    printf '01%s%s' "5154c5770ced2973bf34cef7d48e6ae5fbd7efb2bd081c2889f89048d09a390c" "765427af27e106c13526ca1b6994ddb75a1404fa5ee4461f343eb15a784f6953" | xxd -r -p | shasum -a 256

    Should print 0c8b677f8e343e5e21601e62f6fa2f8f238515f80ec93a3733e7fedc3bdb102b

  4. 4. Combine step 2

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

    printf '01%s%s' "0c8b677f8e343e5e21601e62f6fa2f8f238515f80ec93a3733e7fedc3bdb102b" "0aaf99524c4ce722f6307b65cab805bdadcaddf122d1a1fce2325c13bfd35cfe" | xxd -r -p | shasum -a 256

    Should print ecec0fa3a92582e51cab9664b82d8f67ce0b9ba9fe0766904b0f2fec6b0796d9

  5. 5. Combine step 3

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

    printf '01%s%s' "ecec0fa3a92582e51cab9664b82d8f67ce0b9ba9fe0766904b0f2fec6b0796d9" "e5d0f70bc2a34d3af94354d76ac8b0828eec65a971d8cc2919b2c3a443ac48e4" | xxd -r -p | shasum -a 256

    Should print 6e74ab88876a58402acac210af008b9f1012f01a329a0a8a206ba9a146828ecc

  6. 6. Combine step 4

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

    printf '01%s%s' "6e74ab88876a58402acac210af008b9f1012f01a329a0a8a206ba9a146828ecc" "a65919732d1594acc9afb550ed2ce10e8bf96a42ea9b49984733673443822e5e" | xxd -r -p | shasum -a 256

    Should print 2e6ebaca17a3bf1331e377895837d2a1ed000ada39219e6311b1166e1f7b9603

  7. 7. Combine step 5

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

    printf '01%s%s' "2e6ebaca17a3bf1331e377895837d2a1ed000ada39219e6311b1166e1f7b9603" "9ea770e708ff5a992ebbe1dc432ce6a573002e55cb9a4793a315029f9ce7b7ec" | xxd -r -p | shasum -a 256

    Should print 86fe5b1cd501a45cbc53b8151487586f6954bc5f77a2874f0eb0602698444b31

  8. 8. 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/0x8b3c2fd36a922edc6b9b5df7a32564ad6b8254e5e4d73310406d45385ea13aef

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

Read the specification