Quote verification

This proves the quote below is recorded by Citatio exactly as displayed and has not been altered since it was committed and anchored. It documents Citatio's crawl observation; it does not imply endorsement by the source platform. The quote links to the original review.

“supposed to pay a €99 fee for it”

Checks (re-run on this request)

• ✓ Signature — Ed25519 signature over the record hash, verified against the public key at /.well-known/citatio-signing.json
• ✓ Merkle inclusion — Leaf recomputed through the sibling path to the anchored root
• ✓ Public transparency log — Sigstore Rekor log index 3241341297

Proof data

Record hash (SHA-256)

4fda6c9712d6573e08591ef33b9d37bec0ba9e0fcfc8f5571d4e5a34f705bd8a

Signature (Ed25519, base64)

tioFQXgRGkZ6BjGV4XCYPCQ6nRuJEL+EwHkaUxYcq204STw19lw0ybznyAThpVQ25Y2d7z8aEiA7qqNH8gnEAw==

Merkle root

4900b1080bdcd3b4c9234f01647614e7004e0a1ae01ead44968e31abeab33265

Merkle path

["4fdbe326baa5951dcde99eedb460acef4b34fd0cd3d92b6f772934efc10f15ce","16990d484d38a44c9f5bbd54e955daad47b08f96ce7949fc890079b14b00a976","1a075557bb2abb5b7181040cfedbdfe60a9e3bba1e63bb1d4fbdc18663ac808f","1e3ab25f695248ce8a1b17f7eca412261e2e4b9bd77f93ec892b9564a1b796a0","dedd13238678796c80d405ab607c65a4ccebf7aad90cc9aac9a900aba1777838","e51f09a217f5795d0d26a651769c50f366367d812fa74c6c21965c033aa76d27","cc3f266c4113252e5d98351f2bba7059618028f51dab7084ac9f3402b59c80bc","6ebfa511e7bb164e9137f5cea6768ef949625d3328f8d920f3f065e0101b0bcb","e1cf9cfd779959823e398b82ef12752f83101ab9eebdcea6a3451f6173e6e73a","8cb2f6c11f29539f83cd2e9eea81e8e31d29b15e0a1dff619ec27fc9236eefb1","cd3e9be594270f97347d23985c19ac899631a6773a3076c34d54ac880cc95482","1a39eb8110f60cca7b5d74c4b4e1ee494aba4bfcd1f4082136542cd2a427ac26","acc667d852c71a0e84a086ab20f7bbad3d8ae083a1e44cd20501ad641f662bdf","0a4842003c61f69c5923b6aafd56426e7fe934e483f7d15b620c07fa61f89152"]

Anchored

2026-10-13

Public log entry

search.sigstore.dev, log index 3241341297 · entry 108e9186e8c5677a0e53…

Expected log hash

39342fbb95f8cce5be4111719e5450984494edcdff99b8bd9a5c0d2303b67943 The log entry's spec.data.hash.value must equal this value: the SHA-256 of the Merkle root string above. Recompute it yourself from the root to confirm.

Canonical record

{"dataset_version":"v1791866192176","kind":"published-quote","locale":"en","page":"theme:taxfix/returns/en","quote":"supposed to pay a €99 fee for it","rating":1,"review_date":"2026-06-03","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=de.taxfix","v":1}

Verify in the public log

1. Open the Rekor entry (pre-filled with this proof's log index).
2. In the entry, compare spec.data.hash.value with the "Expected log hash" above: it is the SHA-256 of the Merkle root string (4900b1080bdc…), which ties this proof's root to the log entry.
3. Decode spec.signature.publicKey.content from base64: it must equal Citatio's published key at /.well-known/citatio-signing.json.
4. The entry's integratedTime is the independent timestamp: the root, and with it this quote, existed no later than that moment.
5. Locally, without any Citatio infrastructure: SHA-256 the canonical record (must equal the record hash), verify the Ed25519 signature against the public key, and fold the hash through the Merkle path (sorted-pair SHA-256) to reach the anchored root.