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.

“This app has the audacity to lock basic, essential features behind a ridiculous $15/month paywall.”

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 2681683699

Proof data

Record hash (SHA-256)

16c5313718feeefbcdd13be7f6924e9ba4b3a7ef666d5c0eca424c1ec1b24bd1

Signature (Ed25519, base64)

ufaAI+Wpp/lGQqOzi/w3o5MVlbb3T0mIDBBMdc0QMT7bVJ+ktGlCjlPsF7qdhlmFCbrbFI62qis7gRzcmeSOBg==

Merkle root

ccb89d7f2b2787a5fc0f51dbf1290cf6d3d054f065f4d486ba9ed3b4bbdf9fc0

Merkle path

["16c7928ef1c422b719d472970cd78bfdb61954a41189de15a1d253fb16a4dc32","dc707265ac40b62161be847d1879b36e47c6c2e6604830d06c8d71103c29cfc4","9bf414da4a1151208a89e77452848f94d16f2b1da5f60d78c2af10d130de1f31","9bef7d100503266bce308928e024d6b1d17e8f6e7b1997c1d9ce75d64bcf4310","ae6e6a7860c640a4c211378a0a22b52d56f5bde3cfe96d75d8d4ccef588b6a45","a55b6d92418515bcec644431660bc71cc73c5e374022f27fcfa703b33e701388","1bbc67248a1bab672b1ef4100838bf73ecf168d5df91bc89cf41ae5fb374282e","c7e6adf703a426946b187843dcebf410cf7dc5cb06db6bab409334abd08aacec","c5423159fb0272fbd55a15ff6d0fc5e04de218be3cc9504eb6fc23e042caa419","1789092627cf1627a491675d4d7c9e7db5a7648be2bba537a9f5f2d66fdc6dbe","8d722d8131f25e5edc02d96e2039f833bc4828c2ac99116c0e78e6c59723de39","0bb0bce42cdf723aa7fb8a0979890531958736a70c49490095a93cf10356c150","bd2e522b2e0801a94f25b8d85cab2f5e90c3deb38ee1012dd4b2890c36cc82d9","b844e11da68827a04d7e3043eae18bf24184f5ceb32171d2c67117bc6a285203","1b1d46fc72b77beae0123d299c828e6389aec5d7e71b30d8e28560454bfea5e5"]

Anchored

2026-09-01

Public log entry

search.sigstore.dev, log index 2681683699 · entry 108e9186e8c5677a35f8…

Expected log hash

388b8efb5e320612921149bcc968bfd0483dff8f345428556bc22b9f1c360060 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":"v1788305244922","kind":"published-quote","locale":"en","page":"theme:acrobat/price/en","quote":"This app has the audacity to lock basic, essential features behind a ridiculous $15/month paywall.","rating":1,"review_date":"2026-08-12","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=com.adobe.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 (ccb89d7f2b27…), 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.