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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.

A Quantitative Mini-Review of SpaceX (SPCX) versus Space-Sector ETFs

financeguy · 23 Aug 2026

Stamp ID
STAMP-2026-0823-7G6SR75N
Content hash
ea9d17d446de15884930487206f5c0308cf7e85920abf1e157176dccfbebc574
Day recorded
2026-08-23
Articles recorded that day
4
Attestation UID
0x1c1eeafff25ba2c9f24d960e819749881457835338ed32162702965c04ad9a32
View on EAS
Transaction
0x280711a70d7df52d24cd862e5cee2b9d27c6027a2d89ee1aa297a4ce408a8664
View on Basescan
Stamped
23 Aug 2026

Recorded on Base Sepolia using canonicalization v1 and record format v1.

How this article reaches the blockchain

It was combined with the other 3 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
0x6f0b59502942fd7d0627c77b9085a78c01d0e07ba8e52150da598279314c3777

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
    0x19f487cda8e56e72c2feb0c59794d8adb307d4f1eb95861be2b04be1820bbf3c
    0xd9f9776a60ca6ef0de5f980572b46d6ec36136afb967a01ece83b401a8c5b69f
  2. Step 2, combined with the value before it
    0xf95470ccb59b422c492a2756f3b1b1dc5bfe4237d8c76b74cee72b7aa706c60a
    0xc14c6b4637279130f483e3b5ec229587f8c4a736dde27e2768b180aa5c6acff3

    This is the value for the whole day.

Value these steps arrive at
0xc14c6b4637279130f483e3b5ec229587f8c4a736dde27e2768b180aa5c6acff3

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
0xc14c6b4637279130f483e3b5ec229587f8c4a736dde27e2768b180aa5c6acff3
Read from Base
0xc14c6b4637279130f483e3b5ec229587f8c4a736dde27e2768b180aa5c6acff3
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":"This mini-review models a concentrated single-stock position in SpaceX (Nasdaq: SPCX, which completed its IPO on June 12, 2026 at a ~$1.75–1.77T valuation) against diversified space-sector ETFs (UFO, ARKX, ROKT) across 5-, 10-,…

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-2026-0823-7G6SR75N/canonical" | shasum -a 256

    Should print ea9d17d446de15884930487206f5c0308cf7e85920abf1e157176dccfbebc574

  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-2026-0823-7G6SR75N CONTENT=ea9d17d446de15884930487206f5c0308cf7e85920abf1e157176dccfbebc574 DIGEST=$(printf '%s' "$STAMP" | shasum -a 256 | cut -d' ' -f1) printf '00%s%s' "$DIGEST" "$CONTENT" | xxd -r -p | shasum -a 256

    Should print 6f0b59502942fd7d0627c77b9085a78c01d0e07ba8e52150da598279314c3777

  3. 3. Combine step 1

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

    printf '01%s%s' "19f487cda8e56e72c2feb0c59794d8adb307d4f1eb95861be2b04be1820bbf3c" "6f0b59502942fd7d0627c77b9085a78c01d0e07ba8e52150da598279314c3777" | xxd -r -p | shasum -a 256

    Should print d9f9776a60ca6ef0de5f980572b46d6ec36136afb967a01ece83b401a8c5b69f

  4. 4. Combine step 2

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

    printf '01%s%s' "f95470ccb59b422c492a2756f3b1b1dc5bfe4237d8c76b74cee72b7aa706c60a" "d9f9776a60ca6ef0de5f980572b46d6ec36136afb967a01ece83b401a8c5b69f" | xxd -r -p | shasum -a 256

    Should print c14c6b4637279130f483e3b5ec229587f8c4a736dde27e2768b180aa5c6acff3

  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-sepolia.easscan.org/attestation/view/0x1c1eeafff25ba2c9f24d960e819749881457835338ed32162702965c04ad9a32

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

Read the specification