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.

“l’impression des photos est de grande qualité”

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 2671180029

Proof data

Record hash (SHA-256)

358dfde3a1b4e2b1c5dfbd1ad7195b2522f8d70b3aca8e026640d90b500070c9

Signature (Ed25519, base64)

evBacbsaffEKRc4qoy5iRKUuosDMMZlRM7EIV4Am8GL5OEuNJvA41Qn06NpjDdu796+ENTvgUxTT4eLsRoWqBA==

Merkle root

f9a030a573da3b674a3e48c677288390a434ca97a740d63af7477bb9b0087dd5

Merkle path

["358fd64e8a0280cc545cb8d0abd77a46df82d17a51428f90aecda03089ba6ef7","2ca4587afdfade47e613df7ba5ff3818c5d47f4c1a4a5b2643d48d38ecf7a8b2","5972a83171fc4ac5370ac0a7c1fa07b404fbd97ccd5a543bb02e7b70d6ef9ae1","7bd4207e0f37f6847a4b9aa00bdc3237703a62f30f9d84baba2091bf65bea7d5","0cb28ec2b17d16dcc521595b67e253dee1968ab5ae02ae1f322d7ac41b3e19de","6cf655184dca6a4cf8b812c5c90fef2ab09515de89d39d499504b651bdc8444a","0f3960126575b1cbc544fc02c8b1d8f6cbebc058921998a6d2d7fc57e0a9f379","30d4fc92eb3febec18b58f2e8a7ce6713bf2c3510181920570a3d2cad2655e4e","4753c2ad2b8e6307fc99bc10b123686dc0b29173c7671a0ae4df938ab1449ab6","1cdb407aa1d9a4ece8927668543b67b824ff3b5a2e679b75cb4ab48ea41dae43","188ada523c58c8c5c5a47d0c8a6e5ecad7176d570a3986d4ec6d4e0569eecc8f","a380761718bdcd8707209e07c5f70d98f3d8e526e44503deb09be257f75349dc","0379c7a238f4a741366a6fd9a03d1e5f9bb89aa148b07e3f738ac116d1c41584","123f459bb0d221b9be08e494016e3b59946d910cadbe6bacd03f308db88ffcd7","e08301f62b5ff22d13e806e4fd3e64913f665178fce99d41471461eca04be078"]

Anchored

2026-09-01

Public log entry

search.sigstore.dev, log index 2671180029 · entry 108e9186e8c5677a15e7…

Expected log hash

0c7ea517d47f4c8d05e0565112b0ba6c031576195cb596b9212fca396bc97897 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":"v1788233488301","kind":"published-quote","locale":"fr","page":"brand:myposter","quote":"l’impression des photos est de grande qualité","rating":5,"review_date":"2026-08-27","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=de.myposter.myposterapp","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 (f9a030a573da…), 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.