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.

“It is the best app when it comes to books.”
Google Play · 5/5 · 2026-02-25

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): 8e0ed56740f722c18b90b33a25384512cf54210fbe20b62d6968132096098937
Signature (Ed25519, base64): +MVYB+9cY8aDILsMXIkJe2JkRi+AKjA8chVEjPSXHsTVohfXz6n1jntpqS+7Qyzlz2WzPUGRzZK7ZuzTdLbJCQ==
Merkle root: f26292e960b34f73f9768b4afc64585e265549d794b35b8167826c2bcda92ef5
Merkle path: ["8e0b5b9e440b8499b4e61830828e96a91d25caed10efe4ed6715eeb29a64bc15","1f1cfdf4dd9192f5a4fd709e483fb8037dce83eb2123e7ecb4113ff05705eb1f","959d107e7a77570eeabe2744966b8274466cd62a1e22c846de8cc1f3ff2960ca","e5d88f9ac2d5d9937a699593f8c7a42f0f9f90f0fb3d6798477054dcf26bae16","bba93fddd5a849b1bcd9c5f7f40f3fced40264ab231ed19bd90f2463987ad283","532d6eac1253996b2e9a2957595da792a5ea0713f0fe065f9966ba1aef29cc98","ac7e74cfbb81777f5ece73cd876cdfc279d326806c5e46b9c7d4ed823c9ea95a","0870f0e48c14a1573b9fae4303f827208e4be6adce5f15e050fa4fd43975fb1b","4d4a38b9487b65c2e12673af83d2ea33e0962f4a3db98eeea1b9b486b18fc3f7","512d21c1374a69a3787a41f155b89851ff19eb6937e45234c78804ac532f8b27","3ee4c26b3b5e7bee9c8f7c2261aaa73715be73d5f55359c966a0859b79b1d92a","da342b52039afded388a34c4d220b41695f65ea8d9006b7b024c76c455dc983f","edcaec9f8e5156b483404ee77350f2ddca893e6ce1a1eb48e97046facf217e60","ebe1651655c8b61b6b5364f1f9c2df6d3d2570b884eb1475b1f154f5054feeba","a616224c7837fee9e37cf9dfa53b6dc52945555438d928215ead84ba8ccc7b57"]
Anchored: 2026-09-23
Public log entry: search.sigstore.dev, log index 2913636507 · entry 108e9186e8c5677aea51…
Expected log hash: 417fac9b806377ff48d30ded01faf8424eb98406df713fe2564ee9077747e6a6 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":"v1790070376053","kind":"published-quote","locale":"en","page":"theme:everand/communication/en","quote":"It is the best app when it comes to books.","rating":5,"review_date":"2026-02-25","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=com.scribd.app.reader0","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 (f26292e960b3…), 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.