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.

“They refunded me everything”
Google Play · 5/5 · 2025-08-02

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 3177778280

Proof data

Record hash (SHA-256): 145c37277eb2894a12a92bcb3b48d8d2271bced6dec8b7e143783857ae555c69
Signature (Ed25519, base64): LVb3Nggvu1x2VGjOZ2dpl4HZmGENB6Ao4u2hq2iCMgIbEFnIlSJBoimUK3Va2k/igEshQI7heusoSfRbNsbEBw==
Merkle root: 9bf5e8bc71b8f6d2ce627972b9fb81fedd792f7b02f32eb60fb8da440673ef59
Merkle path: ["145bd8e6635989faa2a54670bad38cbbf9a53ad4e2347c92056cb7f9a946321f","f5b8ff010db3e2bb0349c0714f40a27a2a960932d1fb6d20515fae527af6bee3","ad2e23d9453890cffa96add72255e436c97ef154fd88d9cef42e2a93b5816efe","086e482df17e7ed3de17e5a91afa5c217883eebb01b36eb29e76e6f1f619081f","cded6eb26fb559310bf665ae477623395eb7d9126016c06abf38ff03183f3745","f608275f39f0b3de5dbbe4ebd7a7833ca6f70355c5d56bcc2ed1f2b7350639fb","17483486111597e519274757c4ced63166899f8eb2aec487ab13ecba2b61ff71","3911048222892fb04909d914f0ee5dec641c5ac4741bdd54a804ee8e88bb86b9","d3bc334dbfe21cbcb317067e04143c92a4a0f91c1b1470ba29f814eed10999e6","9e04b26fc113e768f044bb761ec881eaf68d31c3c3733c4323349279de8f3d22","bbaec6998ebf1d04b0b32b4e70b8086357341d49830c3f38a7130610d2298554","2c88cc21ee082e07ea2f20480fd1ac21fba3c798dae266ce57e363aa3da5709f","fb42483682b3119978267e05c9c995226602ecd8627ec630ce52b285c28faff3","09f662acb98b118c251b87092b3ab5baf38f48e2410961a49013a1c2f63f4cf6","1fa7003be7676d7952d939a45bc47245b2ced828dca06428675c885e312c802e"]
Anchored: 2026-10-10
Public log entry: search.sigstore.dev, log index 3177778280 · entry 108e9186e8c5677a59b6…
Expected log hash: 6b6bda8efa0d998f344024bc1a70908bd21604d8857c81e0a6e6c5b1de7aa565 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":"v1791603230890","kind":"published-quote","locale":"en","page":"brand:surfshark","quote":"They refunded me everything","rating":5,"review_date":"2025-08-02","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=com.surfshark.vpnclient.android","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 (9bf5e8bc71b8…), 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.