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 is great for those quick edits on the go”

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 2544092674

Proof data

Record hash (SHA-256)

0b71a940d7113c8849186a6a10b8ce989e432cdb4cf369fd962de2637dee10ca

Signature (Ed25519, base64)

OmCNnLPVtAdGuBFbWXq+Qn8onRcdbcrgUb41PWEbmO69Z8eFNhEgJB0dpslXnRe9v6hneAswMvjwPLa37veZAQ==

Merkle root

fc0474f2ab9253f8c52a81a0b2f1ae382f5f022f9b54f4e3fe06eadaf19fcf31

Merkle path

["0b6c9a05ef28a67c745a886f6a435b15d3bc0488ef4bc8ecd18ce04a8fbade68","468948bc06226ddf67c8b8bd7b05bf4d3bfd195062241a824bb28d9f5851467f","7a0f2102347f0e2a04eb3d34c3ee751b94aa9fbf2565cc45073324756441f495","d98832ea4edeb6cf49cb297970f0aaf22cb416e1d6108139e1a76dd6bf749200","fe6083d6361c3f3d8f331c9f47984742a734189e35d416196afdebc49784a90f","5253e9e4d4865b3f00a75076c0625d79bff8737eb94638582e2a09e45dbf42c6","fc363a45c0c379f88139591d523580c208f2508314594a56ceb669555b05efd3","29d4a4a6339aa7d588d3d9e8b3c73be2d81045e7402417a3a93432126883bab0","c77300adcfa2312e43813b9e7869a636d9bf0808c75695981dc6fa2dab94f7d6","5796e3545da33e47160544f93e68b3f43bbdf3685d881d71c3ad0f36e05f6d19","0414b835d9d4159b69a5d85ae49045075554a3460e84fb35f3d3b2e426dae0e4","fee761e8242d8ba3849c6e844aae866739620eab15cd0f1261b960ec67bcf5f4","0762348a28234508bdd1e30587d1fdc0dd40f0417d1221a51093b63a21a51b25","d53ce14c8422f7b98c01f3be46add79c44e4551711bc517ba367121540130adc","df2c1289894581f6e22c526afc719be15b70c61ef4fbef0978dff78cc8fc6054"]

Anchored

2026-08-21

Public log entry

search.sigstore.dev, log index 2544092674 · entry 108e9186e8c5677a1b30…

Expected log hash

e3ca1014bd6a1a766a29da72cd2b9f7f9c6c416fe6af720fafa94eca555dc171 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":"v1787289954326","kind":"published-quote","locale":"en","page":"brand:smallpdf","quote":"this is great for those quick edits on the go","rating":5,"review_date":"2026-07-08","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=com.smallpdf.app.android","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 (fc0474f2ab92…), 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.