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.

“The customer service was not helpful.”

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 2681318538

Proof data

Record hash (SHA-256)

2f9b05d06ed1d5dc8306c6f1aa05b84151d7fa0ab9d0372c7a6c30a400593793

Signature (Ed25519, base64)

umnuyx+cJUNf4BNpzyXcZhIb/lBsjgprBRnM7zFpb5RwGTJ/9ICKdzyvB4hHF+G+lbi205zzAX6CAS9o7P4wBg==

Merkle root

80545feed588a969110bcd2c8e526c8c2e400cad7348c7872c323a1674d2355a

Merkle path

["2f9dff1228be5f010dc48c7c6e1c4a226d979afa3977461a0b1521a789871be5","91cef7ad29a4d523245da4c2eb91f440515457ca0c23cfc876f23cae261865d2","76bfaf81d49f42ff0189fd1bf451ce97194846170499bd1f5a5ece7ce5fbe329","3f2a391181265024ff8f8d886e6b6f325513281a842a70ca4de1de542580bf08","87c766a69db4f91823c06cfa5a27c0865f8ba6420389302956c434c23dc6f127","3cb340933749628546eab1774156272f6210868c741f2713556dc7daac78fa3e","3fa6a63aad26e0975099f978dfef788735bf7652fa90959525f6bd5168f72991","5d6ad387012779315b69fc7fd2b8d703ebba53f60893e40cdaa3f12f95f158bd","476289ac360f5cfb96f38d330b1b400f79f2c8499e15d0b1d11cf803d992b64d","e5b2d9d53f7ef14c3a0e3eaf464e256c6587561344071c4acfecf9982c591dc1","8fa92f3ef0c994a8abba6fd9857bb4a70656f846f09e00dd02aeddeb4f2b3522","d3bc389941df874cd2571f89997ce8e7b19018ad59895eb4c789269357ff0a2f","4c6caa0b9a68721672e19894d208c3f84efb61f2da83a9ca4726c0d3f3e91414","8378d9d6ade0d6214a847a4a8145a9f89a0810e29d8d29962807c9aaac17e271","fca9ab6e6247b2eeb89a8619f295121cacecd7391ef0e06251791813430b969a"]

Anchored

2026-09-01

Public log entry

search.sigstore.dev, log index 2681318538 · entry 108e9186e8c5677a4bab…

Expected log hash

663cb0c78a61cc964eb6f0e00407fec6844129fb0623d2ac072b7b2e4274054b 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":"v1788302168109","kind":"published-quote","locale":"en","page":"brand:amag","quote":"The customer service was not helpful.","rating":4,"review_date":"2026-05-30","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=ch.amag.amagallride","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 (80545feed588…), 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.