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.

“Impossible de modifier un seul événement dans une série récurrente.”

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 2594765087

Proof data

Record hash (SHA-256)

076793def8bd0da95234597c4d4fa14400be9e9288219b1cce52d87cc8b7448d

Signature (Ed25519, base64)

C5nZIUAtNY8O530R4dSJaZlT2k2Itl+HevvEqQRHVa7h8UHJMzFoF6QLeqC6Zc5ZB7X0YW/pz2tTkk9KzJKkDA==

Merkle root

b839fc90680d59ef42f94824bc47a43844eda063a2dc78e98d04cc6ddfcb474c

Merkle path

["076bd91500407eab477b1df6be57db3d0be989f71b09130215eb5b84ae8a1fcf","03f4adba9540e9f21f07d8eb8758d47260a58a97e86f83a1b3db948eaf744b6e","bdb6e51b6e0bc7bb86d54278a5ef5e32448242b962ea33867948c15ca7e12c27","fbb2caf2b29d1ff12de8ce0b018f4f63dd4961494338c4db502d838ba01b4114","6e060a98d9ce822f1e29ea5f7932e2538a58c36a9552589721ff3f3037e408f0","5e898fa8bbef29041eb5a36359a33cb5123793f41e6bacf4ee5b578943b6ad9d","d161b981d7d5d2461a2566bfce6e01d764a4886021ed751bb0d066cd3f8e9596","fd348cbbcc1016ee955d7c2582df817a5f82efdcd729c82d3ab9a01c373dc586","4e604fa1c2d0743fe1a01d532128a31db361991d9f9be27811583d3269d9e2a8","7f31e77f58de8a43ef26b91683492cdbec3702007c43096c5a97f3baac77aee0","9ee71af0e0202bff3db5ceb8906e346af79c56ede3a8d502ae51684b1bf2d693","da3f18db4275ea305f12e1c8c0800014ede0f36037fddca212d2e67d33301687","93cff867a371eca67187fa18f29672e43dc122f1a11ead8ce02d295afdc520fe","2d44a3f2a338515d5139d8c4d918da71ecf66353dbaf922a6fd5c33bea9ae2dd","53cddda7a1b6beb992bf062aa34497189c716ec3be3251f7e5db0dca344b1a73"]

Anchored

2026-08-26

Public log entry

search.sigstore.dev, log index 2594765087 · entry 108e9186e8c5677ad8ef…

Expected log hash

2b2c4baead5a20e634c42acc5e7cfc8d7389892f0fc879f3c38d7eee1c04ecac 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":"v1787715994367","kind":"published-quote","locale":"fr","page":"theme:proton/quality/fr","quote":"Impossible de modifier un seul événement dans une série récurrente.","rating":3,"review_date":"2026-08-13","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=me.proton.android.calendar","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 (b839fc90680d…), 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.