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.

“Fast, easy to understand, and worth every penny.”
Google Play · 5/5 · 2026-08-30

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 3273084324

Proof data

Record hash (SHA-256): 0790a6e4dfcbb4d1dba4455b9ecfbe1e7d780f39ac15dc1ff3d796a3eb98b8f9
Signature (Ed25519, base64): TahEodFHhG0m4rQae+JWMI62zKb07Wj48wnmvSGWoQiVwgxE0wdezYzT4T6gQLfSbO/1NzbNVWyKdOMSB/V8Cw==
Merkle root: 4591ccf5fcdb01ed421243d02df5f30203ce391c077d4ade1ff5ee97e69e252d
Merkle path: ["079a997841e234194bf18f253f49c31c13b9476f492ee2119474f704b4929fe1","8fdbff336d3e65b03e001bd9b425940abc4bf0d3527c2e1c4d2f896f7dfa4050","5e86ea3acf8177a731b38717c8e2f15a7bfe4b098e6056c4d852583bcfff781e","5580bbecd31a17dfb1251f89ff58725e08bbcb36cb1b4e6cfb135b023b5e23f7","790203539252bc06b5a6bb30bf620bcc85d5a51657729f8f778a70f8105c02af","a904840aed6bcf5338c30578d40334972eb2f4e82bafa8286e866c95818be975","c45ce4f3ab5ab5ccd32da80eb3881934d4239c56779484578e3255f2fdd22023","5a7bcda9c17f53832c1249fe936cc3c634ebb4e409a03dd0b4b7f305ea6283d2","e0634b79a4bee0847f6c8782b7b57dec841b943a2933f3dfa59b7530f0a9f88d","68141eb7b0b5bfd6905e01cbbf9f8caaa38057a5e420c2ba1db193d547da440e","c30f42bd5edd5503274d38897e30e0fd203a58a1d481887545f4163af761a24b","152c0493178cf6b4404f105673ebfb1205dcd47946cf0dc7bed8ccf29e922fd8","d52611af45c7ef524ab63e970b046a1061f8173af77bce3332bb854291964d99","04789af0aae7a52bbc7d5e129e675a1c89df82999aa606ccdd23b89f718c4ff3"]
Anchored: 2026-10-16
Public log entry: search.sigstore.dev, log index 3273084324 · entry 108e9186e8c5677a4edd…
Expected log hash: 52df3e0fd214b96d6c701f5f337408916b7566fa39826e2404f759c290be1eab 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":"v1792120358245","kind":"published-quote","locale":"en","page":"brand:nordvpn","quote":"Fast, easy to understand, and worth every penny.","rating":5,"review_date":"2026-08-30","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=com.nordvpn.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 (4591ccf5fcdb…), 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.