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.

“I've used a bunch of different PDF tools before but It is easily my favorite.”

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 2515243153

Proof data

Record hash (SHA-256)

6f649b4f1f9b54274dd8e55da6f24a38f05a2e5b1ad4654d7d4f0a5d0d39cc63

Signature (Ed25519, base64)

jHqKwJVdTRHQsao3iu6XhLbnbi/LLziRSxkYmxaFXGqXGIZmZHTqDRtnr4my0Ss9ebssrOdzDEH+rTJP7MAPAg==

Merkle root

30b81ce96f52ff8c37a1dce6a2cf1045c2f51663c1ddbd5ca071d040e32c05d6

Merkle path

["6f65b705b8b6c0d3f63e016adbafa6bdbf31602139a3695b936920561d4bf07d","3fb95a6223c21e54bcab07430eff663fa67a6e0e1eb8587725909753810d0590","530d9fb85b3dd52a2dfda05450f2d95e7b93f0776385923ae3f92e8ffd658d55","5f39d47a3731aa1980cf6ee738ce3931c871a635e9cc2dbf149063a3386456cb","31722ce3127b050886e23fb8e7e719f455b1f4a53ef2972963c3c007b8a86f74","3c89f899e79826e18d42ad35ec6ec5bc661fb7bed11cfc2ec6005d08c7fbd2cf","25a6dbcb1bde6b797d5ae10ee825e54a796bcc94ac28f4b68a78bba3ee91b002","687ddd55ec5e62c7db75c9ffcc5444b9ff01bda09bbf00cee1104a616060e72f","b56a6e6a1bd3c9d24e101869f8df846d2da983091b263c4aa7fc1e59dfc9d9e9","32bc1b43c9cd67194e66698b3f6c36805b5b92cc3d74f62603e14ce1ba439786","185fb6db33e0514363239679c819667a9e2961e35fa81a90f9bbfde1429055cb","171acba7b8de2adf5ccf753eab5cf5a607ede7e877b184db95d249f669c5c2fc","0afb56aa9b1dab269e4d7e686a093b4dffdbb488bafce3fcc9dbafc5813d2f51","7b80345d7bd213081fa8cbef47938ae80dfc899b90d35aad15f2a6c5e9b16063","dd9b0a9d584b044c4116e1c10c4b8cf4a06383a771a07c9f3d39f998f23cf36d"]

Anchored

2026-08-19

Public log entry

search.sigstore.dev, log index 2515243153 · entry 108e9186e8c5677a8eb5…

Expected log hash

314ca716b1ad71ca29fff6da960e81a719fe30fa5fc14d8646acca79a7c09353 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":"v1787138594002","kind":"published-quote","locale":"en","page":"product:acrobat/sign-pdf/en","quote":"I've used a bunch of different PDF tools before but It is easily my favorite.","rating":5,"review_date":"2026-07-09","source":"Capterra","source_url":"https://www.capterra.com/p/251329/Adobe-Acrobat-DC/reviews/","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 (30b81ce96f52…), 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.