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.

“Sehr guter E-Mail-Manager mit allen notwendigen Funktionen”
Google Play · 4/5 · 2026-08-12

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 3637495315

Proof data

Record hash (SHA-256): 012c92be781f6d5488dc58067328f0d2aac65505558ecc9fef242fdb361d007f
Signature (Ed25519, base64): SoT52W4Ze7O2WqDgcJcdJ1qww5kUp6yI0iyjyMf9gx3xDUXTR4e2NSJh9Ynqc40B3xxpWqk74Ttng6zkKArADg==
Merkle root: 97834906e0f396a2a898c3c84b9779decf7f82b4c777ec0274321a50a91b4a3e
Merkle path: ["011cecb3f4fe79977b63e4a5aa56708d77ea7dcc74e789df3419da31467e273b","d875547cb8ce2990c4311bf0b9589a930e5bdb8b75e92f1abe5e501548eba512","61b1b75b379704d67d5f51ef455641e78e7c41a7e53068cd1092509ec5b02cf4","cb87ee2dcde3d29aebb979041d491e85be792a17f6427a330f5792f0a530f6cd","bba900b9dddb7120b4c142676dca0db0ef8524bf48c60e3f9e8ab610ea13d152","a6838449d1e9ec77853a7ad1860032db77377bd5706777ae4a3c05bd41d51f96","3eddddc90f5d25d2cd83a9222ef888fd754612282a79cb24f5c5affe1023913e","ba1d532ee7c07a8467fc3723721662fd9eb22645ed4fabbcef2b2c22565c7b6c","5029de7dee811dcc751f63b735bfc88f2b7ce397a4b55d3bf43fc4a00cc4d3bc","f835223889cca7e39941e3de3920758673cadb6135e60c0246eda7c58f58cb1b","333e1b291b35b779bd8769aaafaab2e4879b0442b64f367b3854c7dfc9e9d73f","cd5985dc942dc066cdb074801911565aea14ac0cb7ebbc4b2f477ebb49273066","9e451ae1190daf793986452fa75815e01a9560b27b1cf6d44b59996d2be9d5de"]
Anchored: 2026-11-02
Public log entry: search.sigstore.dev, log index 3637495315 · entry 108e9186e8c5677a69a5…
Expected log hash: 7967f0a54a200ce65e58f0ab49a25f2626f4cdbc93b074229fb004a3c94f4a58 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":"v1793588326916","kind":"published-quote","locale":"de","page":"brand:proton","quote":"Sehr guter E-Mail-Manager mit allen notwendigen Funktionen","rating":4,"review_date":"2026-08-12","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=ch.protonmail.android","v":1}

Verify in the public log

Open the Rekor entry (pre-filled with this proof's log index).
In the entry, compare spec.data.hash.value with the "Expected log hash" above: it is the SHA-256 of the Merkle root string (97834906e0f3…), which ties this proof's root to the log entry.
Decode spec.signature.publicKey.content from base64: it must equal Citatio's published key at /.well-known/citatio-signing.json.
The entry's integratedTime is the independent timestamp: the root, and with it this quote, existed no later than that moment.
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.