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.

“ridiculously overpriced subscription!”

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 2514541190

Proof data

Record hash (SHA-256)

6a9e49590a54bb948969a3c420a1fb8e00cac6a848c825637ca86043afb37069

Signature (Ed25519, base64)

+KzbGie76ZSIKx4sILzRYocR4+r2zxu3enPHR4Z+9+nwrbQpOCw9rO+yVp6hnboVy1ItOAmNsYhdTZYVcZVeDQ==

Merkle root

6ddadcc7cc1bb0679f63a30d8a28a2a72e039950945f2d7276487dd5b703ff7b

Merkle path

["6a9b4acef6588c9b52d14a5d945ecbed28f5169e0c2b0aaa59ad95e62761793d","a01f6762f11d9a5ba6352f5cfe53e3b7d523c5cd00aa5f7ebb7572726d9beccf","b493fa92441d2fad0b9bf2b58e80bcf9b6bfaaa8c9c8e9d0738b3c2b7fecf9ed","623b701e10c48c72a932b3a732cf6710a59ba0648529c3ece345b48ce4d50235","cf734df4157d5a6eb6a23211cab080b9b417244417e33f59b3875b0b49479baf","d02b9c8796ee39923ae5909a426dad060f20b409d4a6408960f1ecd9baeac40d","941b109b31d9a802631f88061173cf60903209e805f2e93a45bb953f3ae6166c","45c6c06d2a3830455655c76c798e0d219eb9aa8bfb51d310d8f25771036b9e52","b55fb5397b08b0507f757511aee2f91092f1ab318cd117e7b262fd4408cd94d7","950bfbc83909a568305a039436eee6c2bc57663a1ee32ca5baaed68a6683bbcf","bbe3642a674f545a544a8a35b2e19722f9b0472a28f562f9cd797f956193c842","61840f7a5d70461f92580da92e37337fe6cfee6ec382e7c517a8242a9ebf8e2e","b7880ec0b6ca5b49f70739afc9c55901cfda1f2917f3bec65d879f03db700592","6c80934204cf6e9e7c67e4289ed571ca8ef594df18a56fa355d65497266fba72","052ac7d24dfc9659210f2718e5c7e6b2477f3dc364546bd6ed2bd5df9d14d7b0"]

Anchored

2026-08-19

Public log entry

search.sigstore.dev, log index 2514541190 · entry 108e9186e8c5677acb65…

Expected log hash

adca5adcd6d3235cf084bc9b408d3e4d7742d07347957346ff2629f37429bf20 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":"v1787130614827","kind":"published-quote","locale":"en","page":"theme:xodo/price/en","quote":"ridiculously overpriced subscription!","rating":1,"review_date":"2026-04-28","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=com.xodo.pdf.reader","v":1}

Verify in the public log

1. Open the Rekor entry (pre-filled with this proof's log index).
2. In the entry, compare spec.data.hash.value with the "Expected log hash" above: it is the SHA-256 of the Merkle root string (6ddadcc7cc1b…), which ties this proof's root to the log entry.
3. Decode spec.signature.publicKey.content from base64: it must equal Citatio's published key at /.well-known/citatio-signing.json.
4. The entry's integratedTime is the independent timestamp: the root, and with it this quote, existed no later than that moment.
5. 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.