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.

“Getting out of Gafam services the transition has been easy.”

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 2890214870

Proof data

Record hash (SHA-256)

0a416b691d286d1b70533b899fe3972b467cb4196e02047e82e998999f54a985

Signature (Ed25519, base64)

zR3LhFjy8iNv1UILFjSdFzu00W9OpdfIGGomsy6GNkmyYAYryIpw5chMJIlTPIRwE5CO0k1nCUfW+jO8Ojh3Ag==

Merkle root

04b39eaa56e1cf8f75dc8eac18bf6942167c8418ea731a7471223f0be60e3e6c

Merkle path

["0a4188e2559b0b96597ae2d43908bb90ee9bf3a1a7019980217bf6331daaba22","6373584327f144e932491fbd41c0c248e414c795aceef9132feee115e1796a6a","a1f3d46353f2226f85df8c7ae37b4afde2797c85b6c909d12cfaddc533de479f","5cd776864b380660ce52676d43ca46469631698bcab2753ad5e6fe19ca08f988","9742a7d38784ef9c6e55da80c9bd3659f6a845177f9e865f9a67d37343ccd6f6","a786f4767390aa9bdb84d37968f9fd344ff544d31d106090571c4a6e36e6bde1","e1f77bf9e4b4a7cd77ab409d6cd39bacb18f30ca8d837b60dc58e570842b2f95","70ab4f376a1216a959eff00743f7a84c851cdc5781a74b0d6ac83a97fea4f002","583d04d05f3a8f54edc81fec3e4cc918a980ed5044bcc186d374ca8d1b8e5879","19226815b1ec20a46e88f44288af4b791292ad181ad079ae6761499e1a889d08","c67ffe398e4bd33e92a5204b1333c9e3540b2b3c0d9953776f425ca13dee3543","7f8da868c04ea13f75c645d6e16a6a300aa21ff71595a4ee06807fba53afca77","3b99d9eea816ac98ef854872f252e2f6ae8ec0fa6018cffc90d522e32a6eca85","9301977225a9c35b65736d9a69d1b0c73f0986b621c92048df03fd9fe11c8db2","695aed3f647000e14ed985f8c4d6045987ffb913dd12c814d6f9a495d4d25fd3"]

Anchored

2026-09-19

Public log entry

search.sigstore.dev, log index 2890214870 · entry 108e9186e8c5677af53b…

Expected log hash

1f3acef0f063246e051bf412e40f4279cb96ed334ff7b0647a13320c1b31c4fa 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":"v1789722569406","kind":"published-quote","locale":"de","page":"product:proton/proton-drive/de","quote":"Getting out of Gafam services the transition has been easy.","rating":4,"review_date":"2026-08-12","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=me.proton.android.drive","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 (04b39eaa56e1…), 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.