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 cost is low”
Google Play · 5/5 · 2026-09-19

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): f0cb907aa1a5b66e2638b200da9f820479c848f7ecf62238772d1039aa71cedb
Signature (Ed25519, base64): sY+NVpF41nn1dHGA2xE9RSooAKVn+niCL94DPh81lRo5RurWiaibcwbzJPtCLdAN4VQsYiQ3QQwNLH/kv3krAg==
Merkle root: f26292e960b34f73f9768b4afc64585e265549d794b35b8167826c2bcda92ef5
Merkle path: ["f0cc5ca45336b75f3918835ea69ce0357eb6314ccb97513e61631750256e2012","41f924a743b9391334ff0a3850c0176a763cc77a88c32a8b1121cdb1f5c73568","68cf71c7a85b34b9a8f20ce06edc46e1344007ce654e0cdb1d1da312bb927a0a","d0a6c41fdaff152e5c8174e8a1743794c545e46dba567c6e73486aaa7a44dc08","b3799c941ed3ed0181af9d7f97a4a107c2a9f482674cca57f881c394876ff59f","c63ba124c383c983a606216726c57334e81f1a238290434f4542bac970af5b91","cbc084825b69fec25156c376f247f00f94d003f0d0fef45dbf04ea690b56ac33","b717f21138b394a2eb0d12045bb26ba16dab77a8337bb57739d3efa290e85d49","07d4a6d939d671b6ccbf5db9279c0c8d271c140da9f9fd9387906b851ad97a9c","2a682e13c41e9958776430a0b48ab49d58985989c2642339dc056e989ac70933","ff9d2cba28b56b9ac059934e199a22ac0d0cb6a6e7d0f34c69230eec5ad40e2b","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:deezer/price/en","quote":"the cost is low","rating":5,"review_date":"2026-09-19","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=deezer.android.app","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.