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.
“best app worth the money”
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 2515033577
Proof data
- Record hash (SHA-256)
63d33f7e0034fdf731c14d2c9258a980e45a5921463fa5ac84c942df6512a51e- Signature (Ed25519, base64)
STGnXY0EQrJl9JFRO61CgzSZ0eMQ5xxJemKtqU3Qvuvyb+UyQod+7523S52gQ4bgRnQyyr9/0JbR1tKIv1U2DQ==- Merkle root
62390602d5b1801b2c96dd61074fd5810278db65461e368ee19c9bb147d249dc- Merkle path
["63d9ef545fc88d50362c9726c6dfd08cb719ac2d8a3cd86f0ba64fce5bef64f0","573b79777974a1f9dabc67d9ab3f6f06c1ea4b483899c2122eaaf20b3c6fbf62","c6456739e6b9e4bd5a033f59129b3b8449146519c4e64fc134b30687815b8ad8","c0c707bbc5e3f7955ee26cac6e7396da39d2cb1403f0b35466008e9c34289b69","cb2f67b2a9124c8e83860ab8dc31bb5397f33a33799d6136a4388469a9b5eae7","0ec97c484a29d2750ed0fca36fa0a0eb4a8dd67356a24a3db6e7c27c292c16a6","187bf360c9846f16497f8d297b35454e8d32e09f516b478c6f3ac8814434b497","93dbd4716acafc3bc49b5f12ec59c76a974e283a9591b22052c3ff808c857c92","5f6cb24509537f1cc7da29664a63736818c85c8cdd0c3797ecfdd0afa0c3e287","a7c30eebe1f7d977859e905a403c611bbc836ab3a2df391927475ed8b8497bb9","f0c371e3549c31ccccf5de55acf0cb3bdeb258801c4d15f1bce6c1d6c854da0f","b0dc0c20548098133de3f9452c9e18550b81c81910057c978f584db23dcbfca8","a5b0f88103dec63c80bc1707eab835572838fff5f43aed265827460436ca21e9","baf7c3a9a57269bbb0661385ae981f5f3219ae8da84a7502572e283df3bc7435","9092fce07a46a5708f071a70ba5ae2d3ebe27de5e813ea1756180e7747d7c5d9"]- Anchored
- 2026-08-19
- Public log entry
-
search.sigstore.dev, log index 2515033577 · entry
108e9186e8c5677aaea6… - Expected log hash
-
458ac564101d02a2c8a5f98465ce4e920300682f0855e017234ab870c48a16cfThe 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":"v1787135948936","kind":"published-quote","locale":"en","page":"theme:threema/price/en","quote":"best app worth the money","rating":5,"review_date":"2025-04-03","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=ch.threema.app","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 (62390602d5b1…), 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.