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.

“Super kostenfreie App ohne Werbung und ohne viel schnick schnack.”

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 2647547434

Proof data

Record hash (SHA-256)

11192e2a3d284c8493be6d1b5903ae023efc043fe6c929a1a201aa2eab391766

Signature (Ed25519, base64)

iB8i7zGM5K401EVRBV48HXi+Lg7FG0TdywgJmrzvgKRKy3Bk8FQBK/i88pll9K7j4yWNpMvMURpGCxavmoAsBQ==

Merkle root

e4013647f339499bd419bb9f69745e1d5e6273d32dd17f94b6c35c2fc080d1e8

Merkle path

["111358c74365efcdf5a7cbf6ca3e7263dc3fd1f7a3f22c053c279fbae1fae610","2c98c4faee12d42b7106c6b72a291cc7f0bb9f433a18b98990a4b40e1176b750","4df75bc556b5f003935ba0cd282ac15c36f9ee186283bebb9ad2bf6353c14ae2","e477f529fedc5247cf5e3348803b5bb2c2adb2b743a7ab0be2bd9899a3cbc983","4c7b08782891f90e2e613de8a9e1c89fb3ba839bea3a03be10e35d2630d2b7ca","5f32033e0919ca7dcaba5c5f6194a7acad039f0c0c58786d85cf0b5b04c0d7f1","b1779443995d3e614451bb9aabcf35d3d38b39c6d7789a4b371b11ddd00e28f9","2b10dc915847200d875a35748114e118b28a8f10ffe8ecc3ff238f28d595d513","8b7248aab0237858a811e2c05957327badd5274572595cd866dfc8e7b741d8cc","8f02af332722cfbde8651f3ddbfc1353b8eaa51777d9e1a1850e2c6b78484be4","c3e09524253379088a1a9b411eb2d328fbbef7f59cfb78a0bc1f301f140bbcf7","84157a9cf885c89da85a3c686dcc74e8c468265987b0fbc6d0c7bdc1cc8053fd","df8342363186f2e3b45c88fa26a77bbc6852f833f9b39f10d9c7965a0af52872","3b1a28d2ad07744c06a00c9b4786a6cdb14dfb04fc76bcc1cbaf73cffed41efd","d68efe45fdecc3c76847a618a62019c7deb410aca5cffe58288bdc27d0bcb771"]

Anchored

2026-08-30

Public log entry

search.sigstore.dev, log index 2647547434 · entry 108e9186e8c5677ae1bc…

Expected log hash

fd8e30fab5cac12236b44671823a2259ebb0774adc4d1a33fd6a7c90ea280d43 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":"v1788063921301","kind":"published-quote","locale":"de","page":"subtheme:meteomatics/ordering/werbefreiheit-kostenlos/de","quote":"Super kostenfreie App ohne Werbung und ohne viel schnick schnack.","rating":5,"review_date":"2026-05-14","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=com.meteomatics.app","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 (e4013647f339…), 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.