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.

“very good service”

Checks (re-run on this request)

Proof data

Record hash (SHA-256)
75a72eb49f3cfc22860dd904fa1f89941ea9d51d098d067f2bc9dbca87aa38e4
Signature (Ed25519, base64)
iT5dVqtt0p0K4r3VnUyv/6rvuu9NCRR/73pjfVYmUdWQtkKUOLYu6vt02+Z3/AmsXOTN5N3C4RNA2RLMs+E2DA==
Merkle root
9ca8f1c1ad15a78206ceaec922c537c0b0ac598e12c9c25877f5e0e19de38c6e
Merkle path
["75ab78050363f544ad8ceccb2efdb8133132d7d6f4b56b33d5b8e5d42b7c1c36","e22d563ae555a67c8252576eb5eff231cd1e185b17fe333ece8b5be0e87a9742","18d0a60ca488cc567742de9b45c77dc0b4370cf8029eb886deb677928019ef6f","73e40ebf7c0d056cdfcce28c079c3fafe00675a66142d4dc2c2e7258a38ff6e7","54e2e183848ce94574a57f6706b79a2f9e0f18604700988766ddfd01c8b565e4","0bc472a8c575489553243227abf1283e1e945ca8bab3e8d72800615fa37c86c8","b2c32d450586b18e52591c84e9e7d4ba9c01515b8c240237b131fb7db525738b","a25622f1172b6ab82821a469c09a833446623411e3905d4c21ca7b07ce0661fa","b7d5703519bb596b289e6743880405be3099a17374bf73ac1765cd6d032b5a08","d043aac0197f64b9eb80f2cbe34cc05d18befcc40c6aa8709e147832e7d8c2cf","67ded85d4a07062fe8eccc1445510db2ad435d9bde2a0cbef2b0268a7d0c9ff8","a383dda54097c814975bbe4525893869077a5f762d195960171df04e5dba1c42","969114be98209aceeb13470003a6154b1294d7c8dc772e07d6980600f808e932","bb86c0787e05591c350bbf95c58c2d99f0ba679999db51dee6e8bbec88a42a61","deb69ba818cac6d60ad262ee5febe93ecfd14e4c978778af299f82ef8a69b934"]
Anchored
2026-08-21
Public log entry
search.sigstore.dev, log index 2543154575 · entry 108e9186e8c5677a0eab…
Expected log hash
0099eed9d12aa99aaa44ed875b87ffaf90c46527b61dfd92cdd4db2c148aef65 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":"v1787284115102","kind":"published-quote","locale":"de","page":"theme:acrobat/service/de","quote":"very good service","rating":4,"review_date":"2026-08-03","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=com.adobe.reader","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 (9ca8f1c1ad15…), 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.