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.

“you can save books”
Google Play · 5/5 · 2026-08-01

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): e7087edd89954f75fad7428c2227595bcf65e6dbe1f619f58854e273e7326a8f
Signature (Ed25519, base64): /9gzEPsLp91iOBNLTgFKn4sZ1L7PsQmlHRPRJ81enZvqB1OfcjgoYO4QnynKg5CzBl+9fxq6ZDRA3EY9KAfMCw==
Merkle root: f26292e960b34f73f9768b4afc64585e265549d794b35b8167826c2bcda92ef5
Merkle path: ["e70f1b0b0d8bd220275ed03f99a9473cbae4260c11ad339992220c88dfe6f501","a908af02a5c3713608b419268a6fa2a279dbfa55a8b91843629523245a47e074","ed854a26e62e3950481e7d6cae51abad5ebe5a2e980d27ba4f22f5fb3547379b","88a5894702cf974d841da08fbbd186d1d1d76890fce84ea892b2a47fd33d8f90","7d6a865d3ed6e231d6ea3b227685d73604d8c82b550d4ac2945ed75fac4acc57","7605fe5c0fe50636a792d35710360d049dd76bc67c4cdf5f277566c29aa40f8a","653811b8a247ba0432258de40fe848ed6955c9eac816dde2975bee4996a8719d","def91535f4ca347f333820453dece2d0f54798deda219dca80a4687a7b873bf3","d4e9c4e8af215b62a2292811b2b9948efd5882effa8d20d554b16687ce076ca0","64c4504e5812481a3176cc0a8ace266d56b0d1926b30869de23710ef08f7d6fb","4f2d29faf7c4ea27a37c32620942ab4edbc9ab260111b345f927618f46d5c2d6","931b50c455f0c4cd7b03a9aa55020946bc08a45af021cb433ed8643740cb7cec","44c8cb0eec3d4c66924c6271a9a32942cc950a307a9339cedf9246ffe3125d65","b763ea1ef84637e764decc45acddfba68cbd65e2d958f57cfeabc8af53520b04","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/ordering/en","quote":"you can save books","rating":5,"review_date":"2026-08-01","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.