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.
“I had the unpleasant surprise of being charged €19.99 for one month.”
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 2913636507
Proof data
- Record hash (SHA-256)
a2d93f492db7617451f4e1afa86bcd71ea87fba40ccb6a49d4e2cfb1838397ad- Signature (Ed25519, base64)
BYfiH62ASF87F4cjiNASxJYcr7EEon0c+fRduUvUv5C1GqwEC5Xsv0s3xJSX8y16cuYXBDfl1nUp+N9OGBP1BQ==- Merkle root
f26292e960b34f73f9768b4afc64585e265549d794b35b8167826c2bcda92ef5- Merkle path
["a2daf4c27f4cf9734c65ff20d595334a4b9a9e0bca25288c469ac0033d7cd9b3","238a2a777325f594b3c4c0ebf3eeae510dd67a87dd5871c3d51a59e803153e4d","0b1bdc480313fd8fb51c37fc51037f5f73e42d64950d7137fb7b1f92604d1b09","7bf1699ed83a86f9d2e59ed22bc7ff3d833e2a9757c2e3c5f970fb3015cfe01f","dff7ca767afd6b6ca17c98c13e4a40a7d013448fc3d2583ad966f35e01186bec","82667833c1bc3e610c34a293ee45c590aeb4fab7db964fe1c3b503ccb8f936de","926239b46e9e9b434989268ee3cc0f781b3cda39c956a84829c954f3dbbd723c","5d8eed831c9eb0f419f56f4adcbb63f1efab209adf040ddda00990c693d4c3e9","71121a70884fac273d03181db504a69932f28694cfbaab103dc088ff2a5d6c9e","83e1cdaef7bddbc2ccd805267fb199cfcd625756f8eb8f8d9f1cf74b762fa9fc","dfda572672fd24920819a6943f95ad4310aceeb99c5317f19a653df1f79f0e48","dda2bd27fa15f75292648f9c602f964628d9c021f5588053dbc2603c0cd3f589","edcaec9f8e5156b483404ee77350f2ddca893e6ce1a1eb48e97046facf217e60","ebe1651655c8b61b6b5364f1f9c2df6d3d2570b884eb1475b1f154f5054feeba","a616224c7837fee9e37cf9dfa53b6dc52945555438d928215ead84ba8ccc7b57"]- Anchored
- 2026-09-23
- Public log entry
-
search.sigstore.dev, log index 2913636507 · entry
108e9186e8c5677aea51… - Expected log hash
-
417fac9b806377ff48d30ded01faf8424eb98406df713fe2564ee9077747e6a6The log entry'sspec.data.hash.valuemust equal this value: the SHA-256 of the Merkle root string above. Recompute it yourself from the root to confirm. - Canonical record
{"dataset_version":"v1790070376053","kind":"published-quote","locale":"en","page":"theme:deezer/billing/en","quote":"I had the unpleasant surprise of being charged €19.99 for one month.","rating":2,"review_date":"2026-09-18","source":"Apple App Store","source_url":"https://apps.apple.com/fr/app/id292738169?see-all=reviews","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.valuewith the "Expected log hash" above: it is the SHA-256 of the Merkle root string (f26292e960b3…), which ties this proof's root to the log entry. -
Decode
spec.signature.publicKey.contentfrom base64: it must equal Citatio's published key at /.well-known/citatio-signing.json. -
The entry's
integratedTimeis 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.