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.

“Prévisions assez précises”

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 2544236959

Proof data

Record hash (SHA-256)

ff833da24e494da92ccb83715575f17167ed362da0bfc1edb74b643360ac606b

Signature (Ed25519, base64)

+Wt6AE5eBeYl9bf12yh6/Dcxw3ReJSZ59BUMwpAtICaycd3SZ1dWWTU8aO2q20u5QHkuCgZnelEVwV7lp25LAA==

Merkle root

cc942239c46f13b1af6cdba0960a24a6cb62e7a7a462aae1e8126c0182dbffc3

Merkle path

["ff7fe662b6abd8877c1c3bd1554c2ec543f5a5437901b5e87cd78722e49649d9","3c45ed0a8bf683ff37da760cf49416a1a01ba057b04cd78c7dbc4395445e56ff","b80e14266bf1923943cfd58caf9ab29aaa731b3072ec5ed17c10e404afbadcbd","d1a2999d52a662b2232456a74dca1d6e9d0987ee333eca8081726bc93199d716","3a2b28f875714b9baaf75f05432efb9b2e79b30018b8fd90187b281a0cd2691c","800e4b41b72f245b44e14cfd9e815e4e943171611aa8f0fec0b5fd340a32dd8e","ca01496348a33db5ca8182ad2bc520b62af830190ae9559ccadd7578f216bc99","435d8d8ff1d93d740bc108507f12f90d63514240a83155c476aa4c1763d9ccc8","857bc7e67885975b47213cf1938e790a14c7fef600e51f7f789b383648fbec2a","ed929c3dafaa62de10e01218ab688636e6f9b62f6a12bd3e6c45c109ac325aae","b9f80a9801e685ccfb5a526d6f77648a2a20a822d15efe579021691cee052e3c","60099dbae313e53e1410c43a173e183f13f26b3b253db87c564730ddb5969e60"]

Anchored

2026-08-21

Public log entry

search.sigstore.dev, log index 2544236959 · entry 108e9186e8c5677a0341…

Expected log hash

c82e13ba2a716d66def44df55ff50c2e9db35da204570a7fd5650a8bc2702db2 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":"v1787290890795","kind":"published-quote","locale":"fr","page":"brand:foreca","quote":"Prévisions assez précises","rating":5,"review_date":"2026-08-08","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=com.foreca.android.weather","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 (cc942239c46f…), 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.