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.

“assez bonne prévision”

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 2543857133

Proof data

Record hash (SHA-256)

fbfdc5eaf9a1d5e16fb8692780b43eafb2d851bdd0c498ddb9b51c9717a3b9e0

Signature (Ed25519, base64)

XyWCnEhTdsUFdpM7UHhHvWscd9SToDnhMW2io9b7oinD+cK7cmK8AJBiSXAUfND8T06U8gvtkrmqBBF8PmxEBg==

Merkle root

cee60bb6c0816d1bc69326ea12cf0c5c00cbea13afa283147bf24b52e30f839c

Merkle path

["fbfe23d318f005684201cc474a188a619f509e28c2b967995a97fe43b804271d","d560eac0064a2eb625e6dedfc81a4d72ea9608766f61b6f39e03add8ebefbb01","b3045d095191eec84a6eaea0df8e5b1e23f0aa3892f3cafced2cd09461d4a3f9","a2b77568116066855a1c423096e2e217aaabe8712bd86770bb10f3214d9e5b07","e706e656eeabd877b4aa8bf458e7456b7e01083cd5266d0334fb4e394f0ca2a2","5cefd8b69f85d845cc5602f384aaad065b826c41439cf6be6aff5f5559768fa0","36093af977dad3273e5aef7991e1d9783fa500701453a8bc9b5011f2a7845314","5f4e9499f206771b87089b0a9d0e78fa66a5906038b8ed09214e5a5498907d29","5e8b7b291593a5fb57008cd07f012938347d0aca14e3e33ec5234885b6f64d64","a00ebfabc5ef083e95952d84021c98d3cc55302f80b66bb210097ff6a1614ef6","8eede5eaaaa39aa311d5d82caff567170f05a3f5da864babf80accb43c38ea8d","78caf62780a7cd32d3591546c7643819cd8e2ced71a3bdf696f7fa96ed9676b7"]

Anchored

2026-08-21

Public log entry

search.sigstore.dev, log index 2543857133 · entry 108e9186e8c5677a5231…

Expected log hash

d8e1ac8b740526c2915424d7f7c6bce881a4ef05d0a3a3dbd88e4c760e36623e 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":"v1787288037224","kind":"published-quote","locale":"fr","page":"brand:tomorrowio","quote":"assez bonne prévision","rating":3,"review_date":"2026-04-05","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=co.climacell.climacell","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 (cee60bb6c081…), 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.