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 purchased an annual plan through a promotion.”
Google Play · 4/5 · 2026-09-05

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 3178115911

Proof data

Record hash (SHA-256): 667ce839228449988b328111e8a4718d99922f23156d47a5a36dc951e2ae0bc7
Signature (Ed25519, base64): 01K1NEo9wrwtWgr6CJ6npNNxuHkx2j77fwzUAmwLAOL4bVeq9uARkpnyBg+V6X10z3xeUTOQMYoTyj89X0NcDw==
Merkle root: afb9ffbb4b4e88017e1c868247f919ebcfe69f09127d391e7daa08019eb2b63b
Merkle path: ["6681c31135d6ab28ccc48e4d7194c8810f8a97b686daf6ce52d549bdc448f730","68701775dd846db95c3a60fee9945cf355996e0d38bb5a92316f7fb04d5b5903","63b5f2e43e3cb56c12060c4c1908c1a332d04478ad5ee514d648dcc451bf0015","d5651252234f0e57634efba07d8d61dd79cce4a6083e11a83722d88c60ca838e","562c59ed7c4ede92440e73c3ae9cecb7931fb868532f8a261f40937902cd2abb","706152412f16279f28ac7d9e48877ddef311d4d3442d89aa44e39877ef558d61","e1138009dbbff59a1ff4f726b96e94f9536c90b33ee6d577bc3510aa2aace95e","3689cc5e7d4fde6ac86a6c040363c49679a5ce995656baa66c97e014057a7c0a","81f4ac1c157bfa27a98ddb2ca41971ce180dc34fe68da555b97495a11e60cc14","8ed67d632d0fff67c57065197808b6a7d06b432596274a390ddf030542048ede","f4e0497c3741d064fbc1df1235b1ee344815a77af0d3676bf58fd9313dd47578","3adb37cc20bae46d15aecd43630c6202a7ecbb5a45648c120a2e3ddd573da4c3","cfc6855eeb5cd3bfbc64cd1a8365b676fdd5adf536ee2637beb35214ad734bd3","15ecb20ce6559654c94b8b858c027c014996a92eb19771813db0b794d6214fb6","72bbc4ee0a973113b1d556f76d02fea2c4704794a0d313a96e49ff7b6174dec2"]
Anchored: 2026-10-10
Public log entry: search.sigstore.dev, log index 3178115911 · entry 108e9186e8c5677a2bba…
Expected log hash: a144ffc32dfaa9fe45b4895b7f4c17280667152868dd8de227ca2811c60c870f 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":"v1791604579182","kind":"published-quote","locale":"en","page":"brand:nordpass","quote":"I purchased an annual plan through a promotion.","rating":4,"review_date":"2026-09-05","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=com.nordpass.android.app.password.manager","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.value with the "Expected log hash" above: it is the SHA-256 of the Merkle root string (afb9ffbb4b4e…), which ties this proof's root to the log entry.
Decode spec.signature.publicKey.content from base64: it must equal Citatio's published key at /.well-known/citatio-signing.json.
The entry's integratedTime is 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.