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.

“Absolut fabelhaft. Keine Werbung, übersichtliches und aufgeräumtes Layout. Und es ist kostenlos. Wow.”

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 2632602917

Proof data

Record hash (SHA-256)

0cdf5118ff7485eb1a4f35ab18c7bd82b4b686e334263339eb32b0fd78ad70ac

Signature (Ed25519, base64)

xxz5pP9x/rcY0cml35Lbvmdif5Y0mMZaVSQZDrIaEor+UL0eNbanR54o6Uz2iF9Ds0XtRJYO7oWpwD34zMj6AQ==

Merkle root

a1293218aac45efa4adfbbfe42c204c0a0d24fd3278271e06c8ce5d1d235b321

Merkle path

["0ce02ba728ec90a08459412a08baa4cb99c5d56a9699e7b2565504b9105eaadb","142ab18a8887a35cde72c3cfe9c6b3282e21d7f47bcfeea80bf624e9d99fc102","168c7f3c271f391ade6fb583e198c71283f1ffa411d7507d4110d5cd046e8917","40652a10db9ea9738196d9199e94bf845e7349c57c983d57e4e6509b0c7fbf13","6d750d2bfe2992f9878395371fe9e977e79dbf799534a3ccc9eb78cfb1eee9d1","3b5e37ead32e919d3210242299a3c35f83ab3c205c639abf6f599ce34879566e","1a0ef80890e5649ce9ddb9ca0f5394ee8b36d7d91096d4913287c1bb3a76df89","d15623b01f63ca0019be66d1bbc097b35fd609f0d68e21570d7899b64b0a2aad","96e917c37418370064976e2d542432cb8259302627fec51ae87284b1fff14653","306d6fa8f7c61a9bd5dc8d9a3bd1aa2f5dd2cdeb00afcf55495c295d2f6288af","60624b9dd483e00e1a6a5008db3fde1f1bf812b2a106ceb78d252cb228414816","c0af6b81f9076d0cdc82ccc0e5134d3ba3e9d1803acafc23dc0ce30341f4e4c9","a308c242d33871cd96052fa5f0f93b6b9f38d0c57cf5b383e09156754d85b70c","c8ed903b07bccf4e9ef2760d806cf4cfed1bdc4cf212006ba2c6687880ded864","18e575f6187bba98afd0e2a71a60397b39232fc4221abc93dd2e7c4e157c8792"]

Anchored

2026-08-29

Public log entry

search.sigstore.dev, log index 2632602917 · entry 108e9186e8c5677a1f9e…

Expected log hash

18ac9eefa605c95be79eba9f5933d9f28816e7c4567c9a5ff34f72ac1de06791 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":"v1787974698062","kind":"published-quote","locale":"de","page":"brand:meteomatics","quote":"Absolut fabelhaft. Keine Werbung, übersichtliches und aufgeräumtes Layout. Und es ist kostenlos. Wow.","rating":5,"review_date":"2026-02-20","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 (a1293218aac4…), 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.