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.

“Being able to create a digital signature has saved me so much time from printing, writing a wet signature and scanning the document back in.”

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 2542342116

Proof data

Record hash (SHA-256)

6cc5a136a09055344ed4f5ee7c9de0d2cdc2dfa9795ca28c1458a595490ab122

Signature (Ed25519, base64)

+8ZfueZ7qK4AWTU3Hg8fJhcUBe3UxOtMyp6fI4YU54canT8prSB1MjSFQgJIlST2xh2AP2GHyvRCmOXBoBK/CA==

Merkle root

13d851a0949e31431bfa3cb9a632b995c3cd1c62cfaf1eda783bd9224fc47725

Merkle path

["6cc785e774dbedeb77ef8a638dc8de00aa780be371aebfe7cfc502d37fb72a43","2d25cadfea79f651aea989bfac9c2e2d9e1b34104d01df72eab737a1eaad27ff","4ab5727bd96f2f967523359295fde4435c0087615358d907cf789dffa1762b91","0ae676a5871947793feefff8fc0e11aee1ef57fba95c40ee27ce89680213c694","317c3b70b90f670dbef77544744740ebe27bc60b31b31b97792b977842dbc08d","9bfe396bf43158f5a2e2d7f66264fa8e353424412219e20e12d6a27452b85443","bd0e53d9045ed9ab5b64eab9aa0dcf3449deadcd61de88418261bc72211c1309","a00dd042c8d2c43acfe7adcd997839990f6c3a5e65ac84c3f68352af2cecbe69","db463f0eb6d7c9bcb82c2f510fd17fe6e57f50d44a3c740548fd42633fc9b37e","90a41a050d122b674b1da16427c82eb02e6996b707aa750b8855c1387d2641de","4d9d045b34f5b7672bc513284ef1e8c359d4682a872efe9a6e6830ee2c7ff7ed","2e4cc4cc9f254585d592ce310b06ef87cd96eee21f75a167ff015e1181264220","a85948d94666cb760325015d876c34467e4e9a308fd736b88b45334d957c084f","8794a267e94c305c4d11faa8a55bb3d3523fb52e75ea5ecdc366a6e906d9f7ca","bc9aae2a90fd8d311435fb1459ac7953f7f2923aa1b697bb0b40101796e3503b"]

Anchored

2026-08-21

Public log entry

search.sigstore.dev, log index 2542342116 · entry 108e9186e8c5677a49dc…

Expected log hash

44bd329b5c5f42e4fbaaab1e9a27845aedd26351446bc96ba12b520a563b7433 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":"v1787279544668","kind":"published-quote","locale":"en","page":"product:acrobat/sign-pdf/en","quote":"Being able to create a digital signature has saved me so much time from printing, writing a wet signature and scanning the document back in.","rating":4,"review_date":"2026-04-26","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 (13d851a0949e…), 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.