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.

“140 € Gebühren und dann auch noch eine Nachzahlung.”

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 3258673097

Proof data

Record hash (SHA-256)

44c7dc8ba55f163aef748c7cf354bf7b47aa7520eea67a3ed7d0fd8439a24d72

Signature (Ed25519, base64)

50ERT8mTnQGBL9V+5LkawfAwsoeFU0tQpnvBlXldpBpN8uM9vWF5gzZvFPW9hLGIvc8q2h3+mINBnQYySTBgDw==

Merkle root

1e69109d842117168677c2c7aab9689ac78923960f86fb642566271a6ebec358

Merkle path

["44d88275f183626cc1e22e22ffc24bb122a4469228fe671e8bc8c4372861fe14","1441e0f7ec33beef584983121a3076ee2aeac33a0f205fa6a035ebaf8b55668e","92bc41ae6761d8d94a5166e1c9c019d34699d431e45f7829f69b143f65a1a866","61adc4d5ba48ea6cc1a61670978516fc545ee33e27b131ecb625fb3dd0187208","01aad63e461c29d752395b9debb7f836a8e451f1f34ecc57eabf70559735520b","af2d343f3e73a225b66418a2f4371e5e23582fe18d9fdb193548032074ba499e","1d74c1af4d4c1a2c5ed0de7eb053cae3a0cd30aeaaa1b51e8894cefdca73df2e","1c4170055b281f1038dfe5ae77039289da9ea54d0adda635d01fd261963bb872","08d6b638ec5d43c78bee4be713ea4f652b047aa71339faaaa6531d44db66889c","7122c460e2f15dedf91ccaa262a85cd2171b4e42afaa28a96bc305aa7c641f51","6318a83c2e1ee58845bf55345bee30468d1ac9d637861e98c85cfc50a904bc5f","c00b3aaccfb9ee06e2f5134db2c03b896d6aa380b3457d17a26c9b0b2171cb84","7c33667a483d5fd3b9ed47c00df3203f479cead457d361a57e3e5a90d1401d8b","4db0e65440b78c494263fe6b915a75fbf2b04ea1cd2fed0eeba5f9cb4589aa37"]

Anchored

2026-10-15

Public log entry

search.sigstore.dev, log index 3258673097 · entry 108e9186e8c5677ab832…

Expected log hash

c57cff5f0f2da5f1c24e09823c0cd10c485830bed55f44ffe5864187f8e896d3 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":"v1792033864449","kind":"published-quote","locale":"de","page":"brand:zasta","quote":"140 € Gebühren und dann auch noch eine Nachzahlung.","rating":1,"review_date":"2026-09-01","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=de.zasta.app","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 (1e69109d8421…), 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.