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.

“qualité en direct est excellent”

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 3177778280

Proof data

Record hash (SHA-256)

351d0044525e2b8381caea21156ca7cf75fae094b2787c0d6cf83fc372fb6bee

Signature (Ed25519, base64)

w3WEcttn7juWpdZDQ1+arP4nc/wfSWgcjPYgRSs/hJFtMlg1adapp1JiBIs9XurgstXCYWFa2zWhwL8bFLsJCw==

Merkle root

9bf5e8bc71b8f6d2ce627972b9fb81fedd792f7b02f32eb60fb8da440673ef59

Merkle path

["352286227a35a55dddb46025a2ad59efa5c07f4333c9cdf10ae3dd6dc1b747e7","554b1bde4c2e3ec62683ef83aaf146a56369020406c9bd1fe2249108d415e778","f3097f379760746046ead33cff407d1ee64a94ce4d84148f72c5c1bdbbe68ee1","514f22cc0be1647da526a753e7469a0e2e3e07d509d4b9bb93d16d647e940258","28e52d48d0ef337b47f03f8d275bf126ae1dd760c3595b527261a78ee1ec9d76","ed7ccf91909103eb964b41d8170d8f85f626f3147acaef3b43185cd56fbc8038","8888eae003319de805b34d0088844e2d45423d72f7078944c7e7a5253d94f276","1e1e2a16e2a276fb12fd6738fd4b8aed6641df4da6262ccd15ca3a4aab420472","579539e8513db83276338791287e3d349b65eb1347fb089a5b19de5e95a20787","0793f5fdfdf67df4241e8d4da018c6277c30a86d63f2b78d40040ca9cc6f6360","1eff45bf4b39475a315a580d077b21440b98fa0a34787e81df5293a11f0b2209","53dd6904824ad544916531788d61c0e418742b30a49a317c1dc2fd8a01bbcaae","fb42483682b3119978267e05c9c995226602ecd8627ec630ce52b285c28faff3","09f662acb98b118c251b87092b3ab5baf38f48e2410961a49013a1c2f63f4cf6","1fa7003be7676d7952d939a45bc47245b2ced828dca06428675c885e312c802e"]

Anchored

2026-10-10

Public log entry

search.sigstore.dev, log index 3177778280 · entry 108e9186e8c5677a59b6…

Expected log hash

6b6bda8efa0d998f344024bc1a70908bd21604d8857c81e0a6e6c5b1de7aa565 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":"v1791603230890","kind":"published-quote","locale":"fr","page":"brand:threema","quote":"qualité en direct est excellent","rating":5,"review_date":"2026-09-23","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=ch.threema.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 (9bf5e8bc71b8…), 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.