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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.

Could airplanes one day fly without pilots?

@RoboNextGen · 5 Oct 2026

Stamp ID
STAMP-2026-1005-L5A4QJUN
Content hash
a80392fbcb69e308ce0665b5fb01dd58f31ef520212e2641e6fa0a919fc09324
Day recorded
2026-10-06
Articles recorded that day
15
Attestation UID
0xa9df93f9287fa980c704294972498aa806fc4b33381236688843cf306b429249
View on EAS
Transaction
0xaa5931a912bc6fc948af848f821a21951d10120547c65c820efa653b1545aeeb
View on Basescan
Stamped
7 Oct 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
0x7acf3e2f17bc0463e3b887ac8ad0e317047bc79fd5aa928016edefd500cff917

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
    0xb99c65db8f16f1153df2725022d08346fd700e9e3b235691b8c30da8835233ba
    0xed3cffe46f345fc3920a69d25970b020ab4c14c5e1ba1fdf503263d31e7ef263
  2. Step 2, combined with the value after it
    0xee7d0ed246e49e45697c929ddcbd1680013bad76b554f85b4848eacd6267cb53
    0x3f354da99cf8d9595d252baf1e6fe2a10cdff14b7992b02d975ab697294b89ce
  3. Step 3, combined with the value after it
    0x8849d97d1454717a5e8b759c86f355337194a53903bf0f1eff9ae6a6ab7beb53
    0xf6e9bee092ca40c02a96ef8ee26ca39530effb9351665feb3ba92e44033f0037
  4. Step 4, combined with the value before it
    0xa9f799966a483b5e226937bad04c452defeec34e6edcd62f9a25542551c7c5b8
    0x38256faf2512c46a9e2a74487a2b8a28fd1c0c136819a67fdf612f505b6e96b9

    This is the value for the whole day.

Value these steps arrive at
0x38256faf2512c46a9e2a74487a2b8a28fd1c0c136819a67fdf612f505b6e96b9

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
0x38256faf2512c46a9e2a74487a2b8a28fd1c0c136819a67fdf612f505b6e96b9
Read from Base
0x38256faf2512c46a9e2a74487a2b8a28fd1c0c136819a67fdf612f505b6e96b9
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":"RoboNextGen","position":1,"role":"solo","weight":1.0000}],"body":{"content":[{"content":[{"marks":[{"attrs":{"font":"mono"},"type":"fontFamily"}],"text":"As technology advances, ful…

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-2026-1005-L5A4QJUN/canonical" | shasum -a 256

    Should print a80392fbcb69e308ce0665b5fb01dd58f31ef520212e2641e6fa0a919fc09324

  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-2026-1005-L5A4QJUN CONTENT=a80392fbcb69e308ce0665b5fb01dd58f31ef520212e2641e6fa0a919fc09324 DIGEST=$(printf '%s' "$STAMP" | shasum -a 256 | cut -d' ' -f1) printf '00%s%s' "$DIGEST" "$CONTENT" | xxd -r -p | shasum -a 256

    Should print 7acf3e2f17bc0463e3b887ac8ad0e317047bc79fd5aa928016edefd500cff917

  3. 3. Combine step 1

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

    printf '01%s%s' "b99c65db8f16f1153df2725022d08346fd700e9e3b235691b8c30da8835233ba" "7acf3e2f17bc0463e3b887ac8ad0e317047bc79fd5aa928016edefd500cff917" | xxd -r -p | shasum -a 256

    Should print ed3cffe46f345fc3920a69d25970b020ab4c14c5e1ba1fdf503263d31e7ef263

  4. 4. Combine step 2

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

    printf '01%s%s' "ed3cffe46f345fc3920a69d25970b020ab4c14c5e1ba1fdf503263d31e7ef263" "ee7d0ed246e49e45697c929ddcbd1680013bad76b554f85b4848eacd6267cb53" | xxd -r -p | shasum -a 256

    Should print 3f354da99cf8d9595d252baf1e6fe2a10cdff14b7992b02d975ab697294b89ce

  5. 5. Combine step 3

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

    printf '01%s%s' "3f354da99cf8d9595d252baf1e6fe2a10cdff14b7992b02d975ab697294b89ce" "8849d97d1454717a5e8b759c86f355337194a53903bf0f1eff9ae6a6ab7beb53" | xxd -r -p | shasum -a 256

    Should print f6e9bee092ca40c02a96ef8ee26ca39530effb9351665feb3ba92e44033f0037

  6. 6. Combine step 4

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

    printf '01%s%s' "a9f799966a483b5e226937bad04c452defeec34e6edcd62f9a25542551c7c5b8" "f6e9bee092ca40c02a96ef8ee26ca39530effb9351665feb3ba92e44033f0037" | xxd -r -p | shasum -a 256

    Should print 38256faf2512c46a9e2a74487a2b8a28fd1c0c136819a67fdf612f505b6e96b9

  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/0xa9df93f9287fa980c704294972498aa806fc4b33381236688843cf306b429249

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

Read the specification