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.

“Must-have tool for handling documents 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 3162767972

Proof data

Record hash (SHA-256)

1107c041e516d34bf519771afb3aa325c8dc1aa790c02fe983189b1746e2d76e

Signature (Ed25519, base64)

R+OdUR1DKwtnJPZpDF4vfNIxX3CR1ACmXHpgqNh4HnXmnyOdIGTZImVKMIaL8ugW1MTLaY2Qxa2GHhwoair5Bg==

Merkle root

ea9653d48be6468e8b38c47d968f49528ccd17e229f6df41b5fdcfc232720ce1

Merkle path

["1107704b100aa9ea8ad6b9e44471788d09672dcf9d0130f13c7341e371351ca3","e83c40a07248f807f7d37d86808506d79f81d77a10f0623485066298f1d3c475","cc5a266fa9a40e8b7f6685dec3654412b4435f8e1a955aee73608b208d00c0dd","7a24c6bb8415c1ec9063e3c25035bcad3e056d990f721874d235f25539aa0e6b","86577076864aa44d58d3564813368f9a40b84f316f5bc2c9cfa5857463fd43f6","315dca0caf31beb545179f27c276603fe3dd5b8d7e1c51097212761d6e3a500d","89ad088f63c2436286457cadd24decce60a58e9594c8e24d0fe79063f3b28f61","4a7b2f09b4c5ec47b0e97d8c01e0ec23b8268249dc3a360d4ec03ab4a92c72d4","d0855a9624d456053b72ac6f2d1a32aa2404807fb03179c9e53212194b08b858","23e9dd8ee2c97b8fe9f84152d72d42bff6c8ec4b6451fe2af462c4e11cd5e643","d084644369877e40bbde6dc360c9ef1e78212c15e42195c45fe8298aa52cd47f","87ddbb9bb9e3d21d9efd04f8b9dd1aa98d488bc655541de4e7541717605e5bd1","6cd34e3dfbc2bb436f1bb9314162b2979f7ca90ac38686f80fc39acf8dc29914","ce40f5d4a6c2a1f06b7e5ce375094f8c75556b02f37cd3d94ca98fa0a38a1e5e","142248530d485121153c09b780e08c6af592fdb4c333042d3cdd9e4160c6db55"]

Anchored

2026-10-09

Public log entry

search.sigstore.dev, log index 3162767972 · entry 108e9186e8c5677a40b3…

Expected log hash

ea8f60b663262eef5ec0ce5a9fbc0ace913092ea47c37bdc70ac392578ea0c35 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":"v1791541525227","kind":"published-quote","locale":"de","page":"brand:acrobat","quote":"Must-have tool for handling documents on the go!","rating":5,"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 (ea9653d48be6…), 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.