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.
“I never agreed to a subscription”
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 2525257308
Proof data
- Record hash (SHA-256)
820bc8d75e9eb0726278f11c77db8453bfa7eeb92b9f249a7688ed33a9d02173- Signature (Ed25519, base64)
VeBXr+pEyZsdEqHtyuSdLScqetg00yvTsGLqPaKBVz5gn/U3eYRH0sb5s+3a7daLyJtPFtRBAWRX31vE5DquBA==- Merkle root
bdf558524b6fc08556728f259e0f09161d4626349b700d7f30fb50b05a626ea1- Merkle path
["8203819b4ae2e0e164120e3a07a83af5ff3947bccc18c99d85e68faa4f9ca0d8","5f8e79da4ed1ab3c641d99d223196db77f6e30d5f134d5a0418feaa0fa910f00","d701fa71a29204e97ac0a7c079ef41fff125bdbfed392fa8aa5920f894fb02a9","129ba869a7b5828a1bf8a42583b284a7eaea5562303f150a60d73011ad4fe5ee","09c91c16999e5443ed9497dcaa79af2483b83063c6bca85b36b52319a42f1776","5a27f125162e6c7afe9cc2f68a9ca1fb909396923d9bd3ad9bf699b5ef42c261","e5ef0fc903473d773d5021c24ec4b54f12d13743a7317eac63a4b1aa3ebc84f6","f5ae452a497d7c16e6185be07adb4ba1c2cb4424470c6f26c82f6a6f920cae08","ded440910334e9e68adce276a3c122202efe8887023e050b2d7de0b273f5c11c","a730102a88b86c8fe54160d6f6b15e256739df8aa0312ae3b0215d8d42afd5c2","d1e53f1053dd9a3749d0c5aa3b94e5c42818ef18682fb2b5dc2fd0db796441d2","fc00a238e2f8b49bdbffa93b0e9e5f8045b3c7630877b42220a0929307738f13","eb1cf819ce45c15462a4daee7cea14e45935677491385f66e3842a303f17a540","8e9594a285d2d4b46501008fca51e6cb82167cdc77c21a7232826a5a1f448c83","7c1f9829e354481f51c5a693ce64e17eb8bee61cee659bdf8b794fb330eb29d9"]- Anchored
- 2026-08-20
- Public log entry
-
search.sigstore.dev, log index 2525257308 · entry
108e9186e8c5677ae552… - Expected log hash
-
c7cb1a1a9418331323cc64d3f101e644ce5e79412d6e55a22a9342e33025b7dcThe log entry'sspec.data.hash.valuemust equal this value: the SHA-256 of the Merkle root string above. Recompute it yourself from the root to confirm. - Canonical record
{"dataset_version":"v1787195935480","kind":"published-quote","locale":"de","page":"theme:threema/billing/de","quote":"I never agreed to a subscription","rating":1,"review_date":"2026-02-01","source":"Apple App Store","source_url":"https://apps.apple.com/us/app/id578665578?see-all=reviews","v":1}
Verify in the public log
- Open the Rekor entry (pre-filled with this proof's log index).
-
In the entry, compare
spec.data.hash.valuewith the "Expected log hash" above: it is the SHA-256 of the Merkle root string (bdf558524b6f…), which ties this proof's root to the log entry. -
Decode
spec.signature.publicKey.contentfrom base64: it must equal Citatio's published key at /.well-known/citatio-signing.json. -
The entry's
integratedTimeis the independent timestamp: the root, and with it this quote, existed no later than that moment. - 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.