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.

“And it's free.”
Google Play · 5/5 · 2026-02-20

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 2622255255

Proof data

Record hash (SHA-256): 09b6971e3d5590c543cf17400e0d5f2142da0280c3dd91cdef1afc14ee963fb0
Signature (Ed25519, base64): +AV+XNFnD72GcHhFlk10k4hfjOTdFgnBHEWDa+j1IBogOMhWff7VYcqbrBc1XgUPo8EtlCgLKRlcWHj2BRVmCw==
Merkle root: 21e7bb8f2fd2dd8d8171a23c0a79176483db4731970a3fe8e0e328189fa103b6
Merkle path: ["09b8424c2e125e0dfae4efa0a246addd2098c6213c5709fa463dfe3ae423e243","bc46ba193c07da075d760a3d418e4b0dc17cf4e717c050256d30d4d8033e0f42","ef430b7c4f1615859808922e28ae7378a39c61793c8924092d508dc78060cca5","df6b7e72d7f5eaffe2e299a74422ec5bc0c018ee8f39b9ccf830a77f4cb8ca38","778df03c1ab8636c8a69b9d2067fe56b3d46d3669aa284333250ee5773ebd803","c3c5afb35ba1d25fd8d427335596d6a3230419182970107b66b13718903a2648","7dc4b2518b06d914d0cf5efc575226e1ee95f8cbe16dc7a9b0ff8c9ff2e548bc","eed2f02ce1e15214d589542026ae33ecc52f2a045653511b33fe69f81093bfbc","edbc25c81d58983949f42186a7240070f5c3f6572f66156e87a45f64edb93166","d3fad7b39651a11b07e68e39f831dd0070ee86cbdbda97f3c478198a95e19533","dd3edb0688c7a9ecd6fe90d84f7990928a6628bea52955f52e45c6241e62d66c","a27949797d6acc76608eb2454a12e7fa3b0e23a9ff082297ecb4e8dc4f5f392e","3cea60263bc32cc376b16e1efd7740bffcfc93464b1276fab6e76a09df031faf","26fb1a8f86dacedb6315aaada1d0ce79d7f80a57d9cd232cbd85d2599cf8282f","2b3a1c21e085528ee4dbbc92da4d806c0eacec4cb4b4d9f473a6ecd411dc064f"]
Anchored: 2026-08-28
Public log entry: search.sigstore.dev, log index 2622255255 · entry 108e9186e8c5677a7795…
Expected log hash: f2a0e8f2b4dab3949c746be15f65076279656fc5309daaeff038c9a778ee0653 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":"v1787896781880","kind":"published-quote","locale":"fr","page":"brand:meteomatics","quote":"And it's free.","rating":5,"review_date":"2026-02-20","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=com.meteomatics.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.value with the "Expected log hash" above: it is the SHA-256 of the Merkle root string (21e7bb8f2fd2…), which ties this proof's root to the log entry.
Decode spec.signature.publicKey.content from base64: it must equal Citatio's published key at /.well-known/citatio-signing.json.
The entry's integratedTime is 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.